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317 Commits

Author SHA1 Message Date
Linus Torvalds b08fc5277a - Error path bug fix for overflow tests (Dan) 
- Additional struct_size() conversions (Matthew, Kees)
 - Explicitly reported overflow fixes (Silvio, Kees)
 - Add missing kvcalloc() function (Kees)
 - Treewide conversions of allocators to use either 2-factor argument
   variant when available, or array_size() and array3_size() as needed (Kees)
 -----BEGIN PGP SIGNATURE-----
 Comment: Kees Cook <kees@outflux.net>
 
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Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull more overflow updates from Kees Cook:
 "The rest of the overflow changes for v4.18-rc1.

  This includes the explicit overflow fixes from Silvio, further
  struct_size() conversions from Matthew, and a bug fix from Dan.

  But the bulk of it is the treewide conversions to use either the
  2-factor argument allocators (e.g. kmalloc(a * b, ...) into
  kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a *
  b) into vmalloc(array_size(a, b)).

  Coccinelle was fighting me on several fronts, so I've done a bunch of
  manual whitespace updates in the patches as well.

  Summary:

   - Error path bug fix for overflow tests (Dan)

   - Additional struct_size() conversions (Matthew, Kees)

   - Explicitly reported overflow fixes (Silvio, Kees)

   - Add missing kvcalloc() function (Kees)

   - Treewide conversions of allocators to use either 2-factor argument
     variant when available, or array_size() and array3_size() as needed
     (Kees)"

* tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits)
  treewide: Use array_size in f2fs_kvzalloc()
  treewide: Use array_size() in f2fs_kzalloc()
  treewide: Use array_size() in f2fs_kmalloc()
  treewide: Use array_size() in sock_kmalloc()
  treewide: Use array_size() in kvzalloc_node()
  treewide: Use array_size() in vzalloc_node()
  treewide: Use array_size() in vzalloc()
  treewide: Use array_size() in vmalloc()
  treewide: devm_kzalloc() -> devm_kcalloc()
  treewide: devm_kmalloc() -> devm_kmalloc_array()
  treewide: kvzalloc() -> kvcalloc()
  treewide: kvmalloc() -> kvmalloc_array()
  treewide: kzalloc_node() -> kcalloc_node()
  treewide: kzalloc() -> kcalloc()
  treewide: kmalloc() -> kmalloc_array()
  mm: Introduce kvcalloc()
  video: uvesafb: Fix integer overflow in allocation
  UBIFS: Fix potential integer overflow in allocation
  leds: Use struct_size() in allocation
  Convert intel uncore to struct_size
  ...
 2018-06-12 18:28:00 -07:00
Kees Cook a86854d0c5 treewide: devm_kzalloc() -> devm_kcalloc() 
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc().
This patch replaces cases of:

        devm_kzalloc(handle, a * b, gfp)

with:
        devm_kcalloc(handle, a * b, gfp)

as well as handling cases of:

        devm_kzalloc(handle, a * b * c, gfp)

with:

        devm_kzalloc(handle, array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        devm_kcalloc(handle, array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        devm_kzalloc(handle, 4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

Some manual whitespace fixes were needed in this patch, as Coccinelle
really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...".

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
expression HANDLE;
type TYPE;
expression THING, E;
@@

(
  devm_kzalloc(HANDLE,
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  devm_kzalloc(HANDLE,
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression HANDLE;
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
expression HANDLE;
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
expression HANDLE;
identifier SIZE, COUNT;
@@

- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression HANDLE;
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression HANDLE;
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  devm_kzalloc(HANDLE,
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
expression HANDLE;
identifier STRIDE, SIZE, COUNT;
@@

(
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  devm_kzalloc(HANDLE,
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression HANDLE;
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  devm_kzalloc(HANDLE,
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression HANDLE;
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  devm_kzalloc(HANDLE, sizeof(THING) * C2, ...)
|
  devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...)
|
  devm_kzalloc(HANDLE, C1 * C2 * C3, ...)
|
  devm_kzalloc(HANDLE, C1 * C2, ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * E2
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- devm_kzalloc
+ devm_kcalloc
  (HANDLE,
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
 2018-06-12 16:19:22 -07:00
Olof Johansson 6874f9de65 memory: tegra: Changes for v4.18-rc1 
This contains some cleanup of the memory controller driver as well as
 unification work to share more code between Tegra20 and later SoC
 generations. Also included are an implementation for the hot resets
 functionality by the memory controller which is required to properly
 reset busy hardware.
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Merge tag 'tegra-for-4.18-memory-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

memory: tegra: Changes for v4.18-rc1

This contains some cleanup of the memory controller driver as well as
unification work to share more code between Tegra20 and later SoC
generations. Also included are an implementation for the hot resets
functionality by the memory controller which is required to properly
reset busy hardware.

* tag 'tegra-for-4.18-memory-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  dt-bindings: memory: tegra: Remove Tegra114 SATA and AFI reset definitions
  memory: tegra: Remove Tegra114 SATA and AFI reset definitions
  memory: tegra: Register SMMU after MC driver became ready
  memory: tegra: Add Tegra210 memory controller hot resets
  memory: tegra: Add Tegra124 memory controller hot resets
  memory: tegra: Add Tegra114 memory controller hot resets
  memory: tegra: Add Tegra30 memory controller hot resets
  memory: tegra: Add Tegra20 memory controller hot resets
  memory: tegra: Introduce memory client hot reset
  memory: tegra: Squash tegra20-mc into common tegra-mc driver
  memory: tegra: Remove unused headers inclusions
  memory: tegra: Apply interrupts mask per SoC
  memory: tegra: Setup interrupts mask before requesting IRQ
  memory: tegra: Do not handle spurious interrupts
  dt-bindings: memory: tegra: Add hot resets definitions

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-05-25 05:14:34 -07:00
Dmitry Osipenko 5fd80cf74e memory: tegra: Remove Tegra114 SATA and AFI reset definitions 
Tegra114 doesn't have SATA nor PCIe, but TRM seems erroneously document
them.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-05-18 22:45:01 +02:00
Dmitry Osipenko 45a81df06e memory: tegra: Register SMMU after MC driver became ready 
Memory Controller driver invokes SMMU driver registration and MC's
registers mapping is shared with SMMU. This mapping goes away if MC
driver probing fails after SMMU registration.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-05-18 12:31:55 +02:00
Olof Johansson 4e7383e14e This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes 
for 4.18, please pull the following:
 
 - Florian removes the synthetic struct device in the DPFE driver which
   was used to attach sysfs attributes and uses the platform_device we are
   probed from instead.
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Merge tag 'arm-soc/for-4.18/drivers' of https://github.com/Broadcom/stblinux into next/drivers

This pull request contains Broadcom ARM/ARM64/MIPS SoCs drivers changes
for 4.18, please pull the following:

- Florian removes the synthetic struct device in the DPFE driver which
  was used to attach sysfs attributes and uses the platform_device we are
  probed from instead.

* tag 'arm-soc/for-4.18/drivers' of https://github.com/Broadcom/stblinux:
  memory: brcmstb: dpfe: Remove need for dpfe_dev

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-05-14 13:27:02 -07:00
Olof Johansson 7a0b8610d3 OMAP-GPMC: driver updates for v4.18 
* get rid of a redundant NULL check in gpmc_probe_dt_children()
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Merge tag 'gpmc-omap-for-v4.18' of https://github.com/rogerq/linux into next/drivers

OMAP-GPMC: driver updates for v4.18
* get rid of a redundant NULL check in gpmc_probe_dt_children()

* tag 'gpmc-omap-for-v4.18' of https://github.com/rogerq/linux:
  memory: omap-gpmc: Avoid redundant NULL check

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-05-14 01:29:15 -07:00
Olof Johansson 71fe67e0e2 ARM: SOC driver update for 4.18 
- AEMIF driver update to support board files and remove
    need of mach-davinci aemif code
  - Use percpu counters for qmss datapath stats
  - License update for TI SCI
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Merge tag 'soc_drivers_for_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

ARM: SOC driver update for 4.18

 - AEMIF driver update to support board files and remove
   need of mach-davinci aemif code
 - Use percpu counters for qmss datapath stats
 - License update for TI SCI

* tag 'soc_drivers_for_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  firmware: ti_sci: Switch to SPDX Licensing
  soc: ti: knav_qmss: Use percpu instead atomic for stats counter
  memory: aemif: add support for board files
  memory: aemif: don't rely on kbuild for driver's name

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-05-14 01:27:47 -07:00
Florian Fainelli b1d0973e9a memory: brcmstb: dpfe: Remove need for dpfe_dev 
We can hook sysfs objects to the parent platform device that we are
created from, no need to have a synthetic dpfe_dev just for that. This
incidentally removes the need for having an index, since we are
guaranteed to have an unique path in the sysfs hiearchy.

Acked-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2018-05-09 12:15:26 -07:00
Thierry Reding 273d760060 memory: tegra: Add Tegra210 memory controller hot resets 
Define the table of memory controller hot resets for Tegra210.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko 1b19b0561d memory: tegra: Add Tegra124 memory controller hot resets 
Define the table of memory controller hot resets for Tegra124.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko 3788c4ed4a memory: tegra: Add Tegra114 memory controller hot resets 
Define the table of memory controller hot resets for Tegra114.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko ec4e1f0d66 memory: tegra: Add Tegra30 memory controller hot resets 
Define the table of memory controller hot resets for Tegra30.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko cb557757e1 memory: tegra: Add Tegra20 memory controller hot resets 
Define the table of memory controller hot resets for Tegra20 and add
specific to Tegra20 hot reset operations.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko 20e92462cd memory: tegra: Introduce memory client hot reset 
In order to reset busy HW properly, memory controller needs to be
involved, otherwise it is possible to get corrupted memory or hang machine
if HW was reset during DMA. Introduce memory client 'hot reset' that will
be used for resetting of busy HW.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:12:21 +02:00
Dmitry Osipenko a8d502fd33 memory: tegra: Squash tegra20-mc into common tegra-mc driver 
Tegra30+ has some minor differences in registers / bits layout compared
to Tegra20. Let's squash Tegra20 driver into the common tegra-mc driver
in a preparation for the upcoming MC hot reset controls implementation,
avoiding code duplication.

Note that this currently doesn't report the value of MC_GART_ERROR_REQ
because it is located within the GART register area and cannot be safely
accessed from the MC driver (this happens to work only by accident). The
proper solution is to integrate the GART driver with the MC driver, much
like is done for the Tegra SMMU, but that is an invasive change and will
be part of a separate patch series.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-30 10:10:00 +02:00
Dmitry Osipenko 85dce8918f memory: tegra: Remove unused headers inclusions 
Tegra210 contains some unused leftover headers, remove them for
consistency.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-27 11:23:52 +02:00
Dmitry Osipenko 1c74d5c0de memory: tegra: Apply interrupts mask per SoC 
Currently we are enabling handling of interrupts specific to Tegra124+
which happen to overlap with previous generations. Let's specify
interrupts mask per SoC generation for consistency and in a preparation
of squashing of Tegra20 driver into the common one that will enable
handling of GART faults which may be undesirable by newer generations.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-27 11:23:04 +02:00
Dmitry Osipenko db4a9c1935 memory: tegra: Setup interrupts mask before requesting IRQ 
This avoids unwanted interrupt during MC driver probe.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-27 11:22:19 +02:00
Dmitry Osipenko bf3fbdfbec memory: tegra: Do not handle spurious interrupts 
The ISR reads interrupts-enable mask, but doesn't utilize it. Apply the
mask to the interrupt status and don't handle interrupts that MC driver
haven't asked for. Kernel would disable spurious MC IRQ and report the
error. This would happen only in a case of a very severe bug.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2018-04-27 11:21:52 +02:00
Roger Quadros d507178f2e memory: omap-gpmc: Avoid redundant NULL check 
child->name cannot be NULL as we're already checking for it
in gpmc_probe_dt_children()

Signed-off-by: Roger Quadros <rogerq@ti.com>
 2018-04-24 10:30:52 +03:00
Bartosz Golaszewski 8af70cd2ca memory: aemif: add support for board files 
Currently aemif is supported in two places separately. By the platform
driver in drivers/memory and by a hand crafted driver in mach-davinci.

We want to drop the latter but also keep the legacy mode. Add support
for board files to the aemif driver.

The new structure in platform data currently only contains the chip
select number, since currently existing users don't require anything
else, but it can be extended in the future.

While extending the platform data struct, add kernel docs describing
its members.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2018-04-20 10:14:27 -07:00
Bartosz Golaszewski f12cb8e274 memory: aemif: don't rely on kbuild for driver's name 
We want to use aemif from board files. Use a static name in the
driver's code.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2018-04-20 10:14:27 -07:00
Dave Gerlach 5692fceebe ARM: OMAP2+: Fix build when using split object directories 
The sleep33xx and sleep43xx files should not depend on a header file
generated in drivers/memory. Remove this dependency and instead allow
both drivers/memory and arch/arm/mach-omap2 to generate all macros
needed in headers local to their own paths.

This fixes an issue where the build fail will when using O= to set a
split object directory and arch/arm/mach-omap2 is built before
drivers/memory with the following error:

.../drivers/memory/emif-asm-offsets.c:1:0: fatal error: can't open
drivers/memory/emif-asm-offsets.s for writing: No such file or directory
compilation terminated.

Fixes: 41d9d44d72 ("ARM: OMAP2+: pm33xx-core: Add platform code needed for PM")
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
 2018-04-18 10:07:13 -07:00
Arnd Bergmann 49774d86fd Samsung soc drivers changes for v4.17 
1. Add SPDX license identifiers.
 2. Populate children syscon nodes in PMU driver to properly model HW in
    DeviceTree.
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Merge tag 'samsung-drivers-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers

Pull "Samsung soc drivers changes for v4.17" from Krzysztof Kozłowski:

1. Add SPDX license identifiers.
2. Populate children syscon nodes in PMU driver to properly model HW in
   DeviceTree.

* tag 'samsung-drivers-4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: pmu: Populate children syscon nodes
  soc: samsung: Add SPDX license identifiers to headers
  memory: samsung: Add SPDX license identifiers
 2018-03-07 16:52:19 +01:00
Arnd Bergmann aa8f21a8a9 SOC driver changes for v4.17 
- Remove deundant dev_err from probe in ti-emif-srma driver
  - Make use of seq_putc in emif reg show
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Merge tag 'soc_drivers_for_4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

Pull "SOC driver changes for v4.17" from Santosh Shilimkar:

 - Remove redundant dev_err from probe in ti-emif-srma driver
 - Make use of seq_putc in emif reg show

* tag 'soc_drivers_for_4.17' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  memory: ti-emif-sram: remove redundant dev_err call in ti_emif_probe()
  memory-EMIF: Use seq_putc() in emif_regdump_show()
 2018-03-07 16:49:12 +01:00
Wei Yongjun a817e5d82a memory: ti-emif-sram: remove redundant dev_err call in ti_emif_probe() 
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2018-03-05 16:21:31 -08:00
SF Markus Elfring d363a88b31 memory-EMIF: Use seq_putc() in emif_regdump_show() 
A single character (line break) should be put into a sequence.
Thus use the corresponding function "seq_putc".

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2018-03-05 16:21:26 -08:00
Markus Mayer fee5f1ef6c memory: brcmstb: dpfe: support new way of passing data from the DCPU 
The DCPU can now send message data in two ways:
  - via the data RAM, as before (this is now message type 0)
  - via the message RAM (this is message type 1)

In order to support both methods, we check the message type of the
response (bits 31:28) and then treat the offset (bits 27:0)
accordingly.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2018-02-23 10:56:59 -08:00
Markus Mayer 9f2c4d95e0 memory: brcmstb: dpfe: fix type declaration of variable "ret" 
In some functions, variable "ret" should be ssize_t, so we fix it.

Fixes: 2f330caff5 ("memory: brcmstb: Add driver for DPFE")
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2018-02-23 10:56:31 -08:00
Markus Mayer 69d7d95452 memory: brcmstb: dpfe: properly mask vendor error bits 
We were printing the entire 32 bit register rather than just the lower
8 bits. Anything above bit 7 is reserved and may be any random value.

Fixes: 2f330caff5 ("memory: brcmstb: Add driver for DPFE")
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2018-02-23 10:56:07 -08:00
Krzysztof Kozlowski f12bb91624 memory: samsung: Add SPDX license identifiers 
Replace GPL license statements with SPDX GPL-2.0 license identifiers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
 2018-02-12 19:55:34 +01:00
Linus Torvalds fe53d1443a ARM: SoC driver updates for 4.16 
A number of new drivers get added this time, along with many low-priority
 bugfixes. The most interesting changes by subsystem are:
 
 bus drivers:
   - Updates to the Broadcom bus interface driver to support newer SoC types
   - The TI OMAP sysc driver now supports updated DT bindings
 
 memory controllers:
   - A new driver for Tegra186 gets added
   - A new driver for the ti-emif sram, to allow relocating
     suspend/resume handlers there
 
 SoC specific:
   - A new driver for Qualcomm QMI, the interface to the modem on MSM SoCs
   - A new driver for power domains on the actions S700 SoC
   - A driver for the Xilinx Zynq VCU logicoreIP
 
 reset controllers:
   - A new driver for Amlogic Meson-AGX
   - various bug fixes
 
 tee subsystem:
   - A new user interface got added to enable asynchronous communication
     with the TEE supplicant.
   - A new method of using user space memory for communication with
     the TEE is added
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "A number of new drivers get added this time, along with many
  low-priority bugfixes. The most interesting changes by subsystem are:

  bus drivers:
   - Updates to the Broadcom bus interface driver to support newer SoC
     types
   - The TI OMAP sysc driver now supports updated DT bindings

  memory controllers:
   - A new driver for Tegra186 gets added
   - A new driver for the ti-emif sram, to allow relocating
     suspend/resume handlers there

  SoC specific:
   - A new driver for Qualcomm QMI, the interface to the modem on MSM
     SoCs
   - A new driver for power domains on the actions S700 SoC
   - A driver for the Xilinx Zynq VCU logicoreIP

  reset controllers:
   - A new driver for Amlogic Meson-AGX
   - various bug fixes

  tee subsystem:
   - A new user interface got added to enable asynchronous communication
     with the TEE supplicant.
   - A new method of using user space memory for communication with the
     TEE is added"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (84 commits)
  of: platform: fix OF node refcount leak
  soc: fsl: guts: Add a NULL check for devm_kasprintf()
  bus: ti-sysc: Fix smartreflex sysc mask
  psci: add CPU_IDLE dependency
  soc: xilinx: Fix Kconfig alignment
  soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
  soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
  soc: bcm: brcmstb: Be multi-platform compatible
  soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
  Revert "soc: brcmstb: Only register SoC device on STB platforms"
  bus: omap: add MODULE_LICENSE tags
  soc: brcmstb: Only register SoC device on STB platforms
  tee: shm: Potential NULL dereference calling tee_shm_register()
  soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
  dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
  soc: xilinx: Create folder structure for soc specific drivers
  of: platform: populate /firmware/ node from of_platform_default_populate_init()
  soc: samsung: Add SPDX license identifiers
  soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
  tee: shm: don't put_page on null shm->pages
  ...
 2018-02-01 16:35:31 -08:00
Ladislav Michl a758f50f10 mtd: onenand: omap2: Configure driver from DT 
Move away from platform data configuration and use pure DT approach.

Use generic probe function to deal with OneNAND node and remove now useless
gpmc_probe_onenand_child function. Import sync mode timing calculation
function from mach-omap2/gpmc-onenand.c

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
 2018-01-12 16:41:15 +01:00
Olof Johansson 11077e9bf7 SOC: Keystone Soc driver updates for 4.16 
- TI EMIF-SRAM driver
  - TI SCI print format fix
  - Navigator strndup lenth fix
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Merge tag 'keystone_driver_soc_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into next/drivers

SOC: Keystone Soc driver updates for 4.16

 - TI EMIF-SRAM driver
 - TI SCI print format fix
 - Navigator strndup lenth fix

* tag 'keystone_driver_soc_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  soc: ti: fix max dup length for kstrndup
  firmware: ti_sci: Use %zu for size_t print format
  memory: ti-emif-sram: remove unused variable
  memory: ti-emif-sram: introduce relocatable suspend/resume handlers
  Documentation: dt: Update ti,emif bindings

Signed-off-by: Olof Johansson <olof@lixom.net>
 2018-01-04 23:12:57 -08:00
Arnd Bergmann 62bf8ae896 memory: tegra: Changes for v4.16-rc1 
The Tegra memory controller driver will now instruct the SMMU driver to
 create groups, which will make it easier for device drivers to share an
 IOMMU domain between multiple devices.
 
 Initial Tegra186 support is also added in a separate driver.
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Merge tag 'tegra-for-4.16-memory' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

Pull "memory: tegra: Changes for v4.16-rc1" from Thierry Reding:

The Tegra memory controller driver will now instruct the SMMU driver to
create groups, which will make it easier for device drivers to share an
IOMMU domain between multiple devices.

Initial Tegra186 support is also added in a separate driver.

* tag 'tegra-for-4.16-memory' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get()
  iommu/tegra: Allow devices to be grouped
  memory: tegra: Create SMMU display groups
  memory: tegra: Add Tegra186 support
  dt-bindings: memory: Add Tegra186 support
  dt-bindings: misc: Add Tegra186 MISC registers bindings
 2017-12-21 18:05:04 +01:00
Thierry Reding 2a8102dfe0 memory: tegra: Create SMMU display groups 
Create SMMU display groups for Tegra30, Tegra114, Tegra124 and Tegra210.
This allows the display controllers on these devices to share the same
IOMMU domain using the standard IOMMU group mechanism.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2017-12-15 10:12:32 +01:00
Thierry Reding 02b0cc52c0 memory: tegra: Add Tegra186 support 
The memory controller found on Tegra186 is different in some respects to
its predecessors. Most notably it no longer implements an SMMU, but does
assign ARM SMMU stream IDs for each memory client instead.

Provide a driver that programs these registers so that memory clients
can translate addresses via the ARM SMMU.

Signed-off-by: Thierry Reding <treding@nvidia.com>
 2017-12-13 12:58:21 +01:00
Arnd Bergmann 84a1695a6f memory: ti-emif-sram: remove unused variable 
The newly introduced driver causes a harmless warning for a variable
that was evidently never used:

drivers/memory/ti-emif-pm.c: In function 'ti_emif_remove':
drivers/memory/ti-emif-pm.c:303:17: error: unused variable 'dev' [-Werror=unused-variable]

Fixes: 8428e5ad75 ("memory: ti-emif-sram: introduce relocatable suspend/resume handlers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2017-12-06 09:50:20 -08:00
Dave Gerlach 8428e5ad75 memory: ti-emif-sram: introduce relocatable suspend/resume handlers 
Certain SoCs like Texas Instruments AM335x and AM437x require parts
of the EMIF PM code to run late in the suspend sequence from SRAM,
such as saving and restoring the EMIF context and placing the memory
into self-refresh.

One requirement for these SoCs to suspend and enter its lowest power
mode, called DeepSleep0, is that the PER power domain must be shut off.
Because the EMIF (DDR Controller) resides within this power domain, it
will lose context during a suspend operation, so we must save it so we
can restore once we resume. However, we cannot execute this code from
external memory, as it is not available at this point, so the code must
be executed late in the suspend path from SRAM.

This patch introduces a ti-emif-sram driver that includes several
functions written in ARM ASM that are relocatable so the PM SRAM
code can use them. It also allocates a region of writable SRAM to
be used by the code running in the executable region of SRAM to save
and restore the EMIF context. It can export a table containing the
absolute addresses of the available PM functions so that other SRAM
code can branch to them. This code is required for suspend/resume on
AM335x and AM437x to work.

In addition to this, to be able to share data structures between C and
the ti-emif-sram-pm assembly code, we can automatically generate all of
the C struct member offsets and sizes as macros by processing
emif-asm-offsets.c into assembly code and then extracting the relevant
data as is done for the generated platform asm-offsets.h files.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
 2017-12-02 19:27:17 -08:00
Ladislav Michl c18a7ac339 memory: omap-gpmc: Make 'bank-width' property optional 
Error out only if both 'bank-width' and 'gpmc,device-width' are missing.
As 'bank-width' is mostly used for NOR devices and all other devices must
use 'gpmc,device-width' update the error message accordingly.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
 2017-12-01 15:37:49 +02:00
Linus Torvalds cf9b0772f2 ARM: SoC driver updates for v4.15 
This branch contains platform-related driver updates for ARM and ARM64,
 these are the areas that bring the changes:
 
 New drivers:
  - Driver support for Renesas R-Car V3M (R8A77970)
  - Power management support for Amlogic GX
  - A new driver for the Tegra BPMP thermal sensor
  - A new bus driver for Technologic Systems NBUS
 
 Changes for subsystems that prefer to merge through arm-soc:
  - The usual updates for reset controller drivers from Philipp Zabel,
    with five added drivers for SoCs in the arc, meson, socfpa, uniphier
    and mediatek families.
  - Updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
    Heiner Kallweit and Lorenzo Pieralisi.
 
 Changes specific to some ARM-based SoC
  - The Freescale/NXP DPAA QBMan drivers from PowerPC can now work
    on ARM as well.
  - Several changes for power management on Broadcom SoCs
  - Various improvements on Qualcomm, Broadcom, Amlogic, Atmel, Mediatek
  - Minor Cleanups for Samsung, TI OMAP SoCs
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "This branch contains platform-related driver updates for ARM and
  ARM64, these are the areas that bring the changes:

  New drivers:

   - driver support for Renesas R-Car V3M (R8A77970)

   - power management support for Amlogic GX

   - a new driver for the Tegra BPMP thermal sensor

   - a new bus driver for Technologic Systems NBUS

  Changes for subsystems that prefer to merge through arm-soc:

   - the usual updates for reset controller drivers from Philipp Zabel,
     with five added drivers for SoCs in the arc, meson, socfpa,
     uniphier and mediatek families

   - updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
     Heiner Kallweit and Lorenzo Pieralisi

  Changes specific to some ARM-based SoC

   - the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on
     ARM as well

   - several changes for power management on Broadcom SoCs

   - various improvements on Qualcomm, Broadcom, Amlogic, Atmel,
     Mediatek

   - minor Cleanups for Samsung, TI OMAP SoCs"

[ NOTE! This doesn't work without the previous ARM SoC device-tree pull,
  because the R8A77970 driver is missing a header file that came from
  that pull.

  The fact that this got merged afterwards only fixes it at this point,
  and bisection of that driver will fail if/when you walk into the
  history of that driver.           - Linus ]

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits)
  soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader
  bus: add driver for the Technologic Systems NBUS
  memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
  soc: qcom: remove unused label
  soc: amlogic: gx pm domain: add PM and OF dependencies
  drivers/firmware: psci_checker: Add missing destroy_timer_on_stack()
  dt-bindings: power: add amlogic meson power domain bindings
  soc: amlogic: add Meson GX VPU Domains driver
  soc: qcom: Remote filesystem memory driver
  dt-binding: soc: qcom: Add binding for rmtfs memory
  of: reserved_mem: Accessor for acquiring reserved_mem
  of/platform: Generalize /reserved-memory handling
  soc: mediatek: pwrap: fix fatal compiler error
  soc: mediatek: pwrap: fix compiler errors
  arm64: mediatek: cleanup message for platform selection
  soc: Allow test-building of MediaTek drivers
  soc: mediatek: place Kconfig for all SoC drivers under menu
  soc: mediatek: pwrap: add support for MT7622 SoC
  soc: mediatek: pwrap: add common way for setup CS timing extenstion
  soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap
  ..
 2017-11-16 16:05:01 -08:00
Arnd Bergmann ad54c3e75d OMAP-GPMC: driver updates for v4.15, part 2 
* get rid of unused function gpmc_update_nand_reg().
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Merge tag 'gpmc-omap-for-v4.15-pt2' of https://github.com/rogerq/linux into next/drivers

Pull "OMAP-GPMC: driver updates for v4.15, part 2" from Roger Quadros:

* get rid of unused function gpmc_update_nand_reg().

* tag 'gpmc-omap-for-v4.15-pt2' of https://github.com/rogerq/linux:
  memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
 2017-11-07 16:31:01 +01:00
Ladislav Michl a622c64166 memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg() 
Deprecated gpmc_update_nand_reg() is no longer used, remove.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
 2017-11-03 15:06:11 +02:00
Arnd Bergmann 3330becb47 This pull request contains Broadcom ARM/ARM64/MIPS SoCs changes for 4.15 
(second part), please pull the following:
 
 - Markus updates the Broadcom STB DPFE driver to avoid loading the firmware when
   unnecessary to accomodate for specific platform restrictions
 
 - Florian adds support for the Broadcom Hurricane 2 SoC iProc PLL clock needed
   to get the proper CPU clock frequency
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Merge tag 'arm-soc/for-4.15/drivers-part2' of http://github.com/Broadcom/stblinux into next/drivers

Pull "Broadcom drivers changes for 4.15 (part 2)" from Florian Fainelli:

This pull request contains Broadcom ARM/ARM64/MIPS SoCs changes for 4.15
(second part), please pull the following:

- Markus updates the Broadcom STB DPFE driver to avoid loading the firmware when
  unnecessary to accomodate for specific platform restrictions

- Florian adds support for the Broadcom Hurricane 2 SoC iProc PLL clock needed
  to get the proper CPU clock frequency

* tag 'arm-soc/for-4.15/drivers-part2' of http://github.com/Broadcom/stblinux:
  clk: bcm: Add Broadcom Hurricane 2 clock support
  memory: brcmstb: dpfe: skip downloading firmware when possible
  memory: brcmstb: dpfe: introduce is_dcpu_enabled()
 2017-11-02 16:21:03 +01:00
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-02 11:10:55 +01:00
Arnd Bergmann d5bd8507cf OMAP-GPMC: driver updates for v4.15 
* get rid of unused field in platform data structure.
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Merge tag 'gpmc-omap-for-v4.15' of https://github.com/rogerq/linux into next/drivers

Pull "OMAP-GPMC: driver updates for v4.15" from Roger Quadros:
* get rid of unused field in platform data structure.

* tag 'gpmc-omap-for-v4.15' of https://github.com/rogerq/linux:
  memory: omap-gpmc: Drop gpmc_status
 2017-10-20 22:36:23 +02:00
Ladislav Michl 0d96a4f6a0 memory: omap-gpmc: Drop gpmc_status 
This field is no longer used, drop it.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
 2017-10-17 14:46:37 +03:00
Markus Mayer a56d339e8c memory: brcmstb: dpfe: skip downloading firmware when possible 
We want to skip downloading the DPFE firmware from Linux if it was
already downloaded by the boot loader.

The driver now checks if the DCPU is already running and, if so,
whether it can process commands. If the DCPU processes commands
successfully, the driver skips the firmware download step.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2017-10-06 16:19:14 -07:00
Markus Mayer d56e746f4b memory: brcmstb: dpfe: introduce is_dcpu_enabled() 
In order to check whether or not the DCPU is running, we introduce
a function called is_dcpu_enabled().

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2017-10-06 16:18:46 -07:00
Markus Mayer 2f330caff5 memory: brcmstb: Add driver for DPFE 
This driver allows access to DRAM properties, such as the refresh rate,
via the Broadcom STB DDR PHY Front End (DPFE). The refresh rate can be
used as indirect indicator of the DRAM temperature.

The driver also allows setting of the sampling interval.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
 2017-09-18 11:59:39 -07:00
Linus Torvalds ae46654bcf ARM: SoC driver updates for v4.14 
This branch contains platform-related driver updates for ARM and ARM64.
 
 Among them:
 
  - Reset driver updates:
   + New API for dealing with arrays of resets
   + Make unimplemented {de,}assert return success on shared resets
   + MSDKv1 driver
   + Removal of obsolete Gemini reset driver
   + Misc updates for sunxi and Uniphier
 
  - SoC drivers:
   + Platform SoC driver registration on Tegra
   + Shuffle of Qualcomm drivers into a submenu
   + Allwinner A64 support for SRAM
   + Renesas R-Car R3 support
   + Power domains for Rockchip RK3366
 
  - Misc updates and smaller fixes for TEE and memory driver subsystems
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "This branch contains platform-related driver updates for ARM and ARM64.

  Among them:

   - Reset driver updates:
     + New API for dealing with arrays of resets
     + Make unimplemented {de,}assert return success on shared resets
     + MSDKv1 driver
     + Removal of obsolete Gemini reset driver
     + Misc updates for sunxi and Uniphier

   - SoC drivers:
     + Platform SoC driver registration on Tegra
     + Shuffle of Qualcomm drivers into a submenu
     + Allwinner A64 support for SRAM
     + Renesas R-Car R3 support
     + Power domains for Rockchip RK3366

   - Misc updates and smaller fixes for TEE and memory driver
     subsystems"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits)
  firmware: arm_scpi: fix endianness of dev_id in struct dev_pstate_set
  soc/tegra: fuse: Add missing semi-colon
  soc/tegra: Restrict SoC device registration to Tegra
  drivers: soc: sunxi: add support for A64 and its SRAM C
  drivers: soc: sunxi: add support for remapping func value to reg value
  drivers: soc: sunxi: fix error processing on base address when claiming
  dt-bindings: add binding for Allwinner A64 SRAM controller and SRAM C
  bus: sunxi-rsb: Enable by default for ARM64
  soc/tegra: Register SoC device
  firmware: tegra: set drvdata earlier
  memory: Convert to using %pOF instead of full_name
  soc: Convert to using %pOF instead of full_name
  bus: Convert to using %pOF instead of full_name
  firmware: Convert to using %pOF instead of full_name
  soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC
  soc: mediatek: add header files required for MT7622 SCPSYS dt-binding
  soc: mediatek: reduce code duplication of scpsys_probe across all SoCs
  dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC
  reset: uniphier: add analog amplifiers reset control
  reset: uniphier: add video input subsystem reset control
  ...
 2017-09-10 20:40:00 -07:00
Linus Torvalds 4dfc278803 IOMMU Updates for Linux v4.14 
Slightly more changes than usual this time:
 
 	- KDump Kernel IOMMU take-over code for AMD IOMMU. The code now
 	  tries to preserve the mappings of the kernel so that master
 	  aborts for devices are avoided. Master aborts cause some
 	  devices to fail in the kdump kernel, so this code makes the
 	  dump more likely to succeed when AMD IOMMU is enabled.
 
 	- Common flush queue implementation for IOVA code users. The
 	  code is still optional, but AMD and Intel IOMMU drivers had
 	  their own implementation which is now unified.
 
 	- Finish support for iommu-groups. All drivers implement this
 	  feature now so that IOMMU core code can rely on it.
 
 	- Finish support for 'struct iommu_device' in iommu drivers. All
 	  drivers now use the interface.
 
 	- New functions in the IOMMU-API for explicit IO/TLB flushing.
 	  This will help to reduce the number of IO/TLB flushes when
 	  IOMMU drivers support this interface.
 
 	- Support for mt2712 in the Mediatek IOMMU driver
 
 	- New IOMMU driver for QCOM hardware
 
 	- System PM support for ARM-SMMU
 
 	- Shutdown method for ARM-SMMU-v3
 
 	- Some constification patches
 
 	- Various other small improvements and fixes
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Merge tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "Slightly more changes than usual this time:

   - KDump Kernel IOMMU take-over code for AMD IOMMU. The code now tries
     to preserve the mappings of the kernel so that master aborts for
     devices are avoided. Master aborts cause some devices to fail in
     the kdump kernel, so this code makes the dump more likely to
     succeed when AMD IOMMU is enabled.

   - common flush queue implementation for IOVA code users. The code is
     still optional, but AMD and Intel IOMMU drivers had their own
     implementation which is now unified.

   - finish support for iommu-groups. All drivers implement this feature
     now so that IOMMU core code can rely on it.

   - finish support for 'struct iommu_device' in iommu drivers. All
     drivers now use the interface.

   - new functions in the IOMMU-API for explicit IO/TLB flushing. This
     will help to reduce the number of IO/TLB flushes when IOMMU drivers
     support this interface.

   - support for mt2712 in the Mediatek IOMMU driver

   - new IOMMU driver for QCOM hardware

   - system PM support for ARM-SMMU

   - shutdown method for ARM-SMMU-v3

   - some constification patches

   - various other small improvements and fixes"

* tag 'iommu-updates-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (87 commits)
  iommu/vt-d: Don't be too aggressive when clearing one context entry
  iommu: Introduce Interface for IOMMU TLB Flushing
  iommu/s390: Constify iommu_ops
  iommu/vt-d: Avoid calling virt_to_phys() on null pointer
  iommu/vt-d: IOMMU Page Request needs to check if address is canonical.
  arm/tegra: Call bus_set_iommu() after iommu_device_register()
  iommu/exynos: Constify iommu_ops
  iommu/ipmmu-vmsa: Make ipmmu_gather_ops const
  iommu/ipmmu-vmsa: Rereserving a free context before setting up a pagetable
  iommu/amd: Rename a few flush functions
  iommu/amd: Check if domain is NULL in get_domain() and return -EBUSY
  iommu/mediatek: Fix a build warning of BIT(32) in ARM
  iommu/mediatek: Fix a build fail of m4u_type
  iommu: qcom: annotate PM functions as __maybe_unused
  iommu/pamu: Fix PAMU boot crash
  memory: mtk-smi: Degrade SMI init to module_init
  iommu/mediatek: Enlarge the validate PA range for 4GB mode
  iommu/mediatek: Disable iommu clock when system suspend
  iommu/mediatek: Move pgtable allocation into domain_alloc
  iommu/mediatek: Merge 2 M4U HWs into one iommu domain
  ...
 2017-09-09 15:03:24 -07:00
Ludovic Desroches b0f3ab20e7 mfd: syscon: atmel-smc: Add helper to retrieve register layout 
For HSMC controller, the register layout depends on the device i.e. the
offset of setup, pulse, cycle, mode and timings registers is not the
same. An helper is added to provide the correct register layout.

Fixes: fe9d7cb22e ("mfd: syscon: atmel-smc: Add new helpers to ease
SMC regs manipulation")
Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-09-05 08:46:01 +01:00
Joerg Roedel 47b59d8e40 Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
Yong Wu 4f608d382e memory: mtk-smi: Degrade SMI init to module_init 
The initialization of MediaTek power manager(SCPSYS) is
builtin_platform_driver, and SMI must depend on power-domain.
Thus, currently subsys_initcall for SMI is unnecessary, SMI will be
always probe defered by power-domain. Degrade it to module_init.

In addition, there are two small changes about the probe sequence:
1) Delete this two lines.
    	if (!dev->pm_domain)
		return -EPROBE_DEFER;
   This is not helpful. the platform driver framework guarantee this.
   The "dev_pm_domain_attach" in the "platform_drv_probe" will return
   EPROBE_DEFER if its powerdomain is not ready.

2) Add the probe-defer for the smi-larb device should waiting for
   smi-common.
   In mt2712, there are 2 smi-commons, 10 smi-larbs. All will be
   probe-defered by the power-domain, there is seldom case that
   smi-larb probe done before smi-common. then it will hang like
   this:

   Unable to handle kernel NULL pointer dereference at virtual address
00000000 pgd = ffffff800a4e0000
[00000000] *pgd=00000000beffe003[   17.610026] , *pud=00000000beffe003
...
[<ffffff800897fe04>] mtk_smi_enable+0x1c/0xd0
[<ffffff800897fee8>] mtk_smi_larb_get+0x30/0x98
[<ffffff80088edfa8>] mtk_mipicsi0_resume+0x38/0x1b8
[<ffffff8008634f44>] pm_generic_runtime_resume+0x3c/0x58
[<ffffff8008644ff8>] __genpd_runtime_resume+0x38/0x98
[<ffffff8008647434>] genpd_runtime_resume+0x164/0x220
[<ffffff80086372f8>] __rpm_callback+0x78/0xa0
[<ffffff8008637358>] rpm_callback+0x38/0xa0
[<ffffff8008638a4c>] rpm_resume+0x4a4/0x6f8
[<ffffff8008638d04>] __pm_runtime_resume+0x64/0xa0
[<ffffff80088ed05c>] mtk_mipicsi0_probe+0x40c/0xb70
[<ffffff800862cdc0>] platform_drv_probe+0x58/0xc0
[<ffffff800862a514>] driver_probe_device+0x284/0x438
[<ffffff800862a8ac>] __device_attach_driver+0xb4/0x160
[<ffffff8008627d58>] bus_for_each_drv+0x68/0xa8
[<ffffff800862a0a4>] __device_attach+0xd4/0x168
[<ffffff800862a9d4>] device_initial_probe+0x24/0x30
[<ffffff80086291d8>] bus_probe_device+0xa0/0xa8
[<ffffff8008629784>] deferred_probe_work_func+0x94/0xf0
[<ffffff80080f03a8>] process_one_work+0x1d8/0x6e0

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2017-08-22 16:38:00 +02:00
Yong Wu e6dec92308 iommu/mediatek: Add mt2712 IOMMU support 
The M4U IP blocks in mt2712 is MTK's generation2 M4U which use the
ARM Short-descriptor like mt8173, and most of the HW registers are
the same.

The difference is that there are 2 M4U HWs in mt2712 while there's
only one in mt8173. The purpose of 2 M4U HWs is for balance the
bandwidth.

Normally if there are 2 M4U HWs, there should be 2 iommu domains,
each M4U has a iommu domain.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2017-08-22 16:37:58 +02:00
Rob Herring db749d17cb memory: Convert to using %pOF instead of full_name 
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2017-08-16 21:37:00 +02:00
Arvind Yadav 46cc815d6d memory: mtk-smi: Handle return value of clk_prepare_enable 
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2017-08-15 17:46:23 +02:00
Honghui Zhang 363932cdef memory: mtk-smi: add larbid handle routine 
In the commit 3c8f4ad85c ("memory/mediatek: add support for mt2701"),
the larb->larbid was added but not initialized.
Mediatek's gen1 smi need this hardware larbid information to get the
register offset which controls whether enable iommu for this larb.
This patch add the initialize routine for larbid.

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2017-08-04 12:04:58 +02:00
Honghui Zhang 75487860a8 memory: mtk-smi: Use of_device_get_match_data helper 
Replace custom code with generic helper to retrieve driver data.

Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2017-08-04 12:04:57 +02:00
Alexander Dahl 3fb3b3c4b6 memory: atmel-ebi: Fix smc cycle xlate converter 
The converter function for translating ns timings in register values was
initialized with a wrong function pointer. This resulted in wrong
register values also for the setup and pulse registers when configuring
the EBI interface trough dts.

Includes a small fix in a comment of the smc driver, which was probably
just a copy'n'paste mistake.

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-07-26 22:37:54 +02:00
Alexander Dahl 1f6b53901f memory: atmel-ebi: Allow t_DF timings of zero ns 
As reported in [1] and in [2] it's not possible to set the device tree
property 'atmel,smc-tdf-ns' to zero, although the SoC allows a setting
of 0ns for the t_DF time.

Allow this setting by doing the same thing as in the atmel nand
controller driver by setting ncycles to ATMEL_SMC_MODE_TDF_MIN if zero
is set in the dts.

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-March/490966.html
[2] http://lists.infradead.org/pipermail/linux-arm-kernel/2017-July/520652.html

Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-07-26 22:37:46 +02:00
Alexander Dahl bc9b934b2f memory: atmel-ebi: Fix smc timing return value evaluation 
Setting optional EBI/SMC properties through device tree always fails due
to wrong evaluation of the return value of
atmel_ebi_xslate_smc_timings().

If you put some of those properties in your dts file, but not
'atmel,smc-tdf-ns' the local variable 'required' in
atmel_ebi_xslate_smc_timings() stays on 'false' after the first 'if'
block. This leads to setting 'ret' to -EINVAL in the first run of the
following 'for' loop which is then the return value of this function.

However if you set 'atmel,smc-tdf-ns' in the dts file and everything in
atmel_ebi_xslate_smc_timings() works well, it returns the content of
'required' which is 'true' then.

So the function atmel_ebi_xslate_smc_timings() always returns non-zero
which lets its call in atmel_ebi_xslate_smc_config() always fail and
thus returning -EINVAL, so the EBI configuration for this node fails.

Judging from the following code evaluating the local 'required' variable
in atmel_ebi_xslate_smc_config() and the call of caps->xlate_config in
atmel_ebi_dev_setup() it's probably right to only let the call fail if a
negative error code is returned.

Signed-off-by: Alexander Dahl <ada@thorsis.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-07-26 22:37:30 +02:00
Linus Torvalds e854711291 ARM: SoC driver updates 
- New SoC specific drivers
   - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later)
     based on the "BPMP" firmware
   - Clocksource and system controller drivers for the newly added
     Action Semi platforms (both arm and arm64).
 
 - Reset subsystem, merged through arm-soc by tradition:
   - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini SoCs
   - Various subsystem-wide cleanups
 
 - Updates for existing SoC-specific drivers
   - TI GPMC (General Purpose Memory Controller)
   - Mediatek "scpsys" system controller support for MT6797
   - Broadcom "brcmstb_gisb" bus arbitrer
   - ARM SCPI firmware
   - Renesas "SYSC" system controller
 
 One more driver update was submitted for the Freescale/NXP DPAA
 data path acceleration that has previously been used on PowerPC
 chips. I ended up postponing the merge until some API questions
 for its unusual MMIO access are resolved.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "New SoC specific drivers:

   - NVIDIA Tegra PM Domain support for newer SoCs (Tegra186 and later)
     based on the "BPMP" firmware

   - Clocksource and system controller drivers for the newly added
     Action Semi platforms (both arm and arm64).

  Reset subsystem, merged through arm-soc by tradition:

   - New drivers for Altera Stratix10, TI Keystone and Cortina Gemini
     SoCs

   - Various subsystem-wide cleanups

  Updates for existing SoC-specific drivers

   - TI GPMC (General Purpose Memory Controller)

   - Mediatek "scpsys" system controller support for MT6797

   - Broadcom "brcmstb_gisb" bus arbitrer

   - ARM SCPI firmware

   - Renesas "SYSC" system controller

  One more driver update was submitted for the Freescale/NXP DPAA data
  path acceleration that has previously been used on PowerPC chips. I
  ended up postponing the merge until some API questions for its unusual
  MMIO access are resolved"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (35 commits)
  clocksource: owl: Add S900 support
  clocksource: Add Owl timer
  soc: renesas: rcar-sysc: Use GENPD_FLAG_ALWAYS_ON
  firmware: tegra: Fix locking bugs in BPMP
  soc/tegra: flowctrl: Fix error handling
  soc/tegra: bpmp: Implement generic PM domains
  soc/tegra: bpmp: Update ABI header
  PM / Domains: Allow overriding the ->xlate() callback
  soc: brcmstb: enable drivers for ARM64 and BMIPS
  soc: renesas: Rework Kconfig and Makefile logic
  reset: Add the TI SCI reset driver
  dt-bindings: reset: Add TI SCI reset binding
  reset: use kref for reference counting
  soc: qcom: smsm: Improve error handling, quiesce probe deferral
  cpufreq: scpi: use new scpi_ops functions to remove duplicate code
  firmware: arm_scpi: add support to populate OPPs and get transition latency
  dt-bindings: reset: Add reset manager offsets for Stratix10
  memory: omap-gpmc: add error message if bank-width property is absent
  memory: omap-gpmc: make dts snippet include semicolon
  reset: Add a Gemini reset controller
  ...
 2017-07-04 14:47:47 -07:00
Olof Johansson cd8eb6291d Few improvments for GPMC (General Purpose Memory Controller) 
found on TI SoCs to produce an error for missing bank-width
 and to make the bootloader timing debug output usable for
 device tree timings.
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Merge tag 'omap-for-v4.13/gpmc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers

Few improvments for GPMC (General Purpose Memory Controller)
found on TI SoCs to produce an error for missing bank-width
and to make the bootloader timing debug output usable for
device tree timings.

* tag 'omap-for-v4.13/gpmc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  memory: omap-gpmc: add error message if bank-width property is absent
  memory: omap-gpmc: make dts snippet include semicolon

Signed-off-by: Olof Johansson <olof@lixom.net>
 2017-06-18 18:55:59 -07:00
Greg Kroah-Hartman 069a0f32c9 Merge 4.12-rc5 into char-misc-next 
We want the char/misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-06-12 08:18:10 +02:00
Arvind Yadav 761d031ec9 memory: ti-aemif: Handle return value of clk_prepare_enable 
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-06-03 19:08:14 +09:00
Olof Johansson da3d1d4a4e Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes 
Fixes for 4.12:

Fix two compilation issues

* tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  ARM: at91: select CONFIG_ARM_CPU_SUSPEND
  memory: atmel-ebi: mark PM ops as __maybe_unused

Signed-off-by: Olof Johansson <olof@lixom.net>
 2017-06-01 17:07:31 -07:00
Uwe Kleine-König c9eabf40d9 memory: omap-gpmc: add error message if bank-width property is absent 
Instead of failing silently log a hint for the dt author about the
reason of the failure.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
 2017-05-31 10:08:10 -07:00
Uwe Kleine-König 95c278b243 memory: omap-gpmc: make dts snippet include semicolon 
In the device tree each property must be terminated with a semicolon, so
include them in the output for easier cut-n-paste.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
 2017-05-31 10:07:08 -07:00
Tony Lindgren aff523fb82 memory: omap-gpmc: Fix debug output for access width 
The width needs to be configured in bytes with 1 meaning 8-bit
access and 2 meaning 16-bit access.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
 2017-05-16 08:12:47 -07:00
Arnd Bergmann 41b80bb1db memory: atmel-ebi: mark PM ops as __maybe_unused 
We get a harmless warning without CONFIG_PM:

drivers/memory/atmel-ebi.c:584:12: error: 'atmel_ebi_resume' defined but not used [-Werror=unused-function]

Marking the function as __maybe_unused does the right thing here
and drops it silently when unused.

Fixes: a483fb10e5ea ("memory: atmel-ebi: Add PM ops")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-05-15 11:37:58 +02:00
Linus Torvalds 9786e34e0a MTD updates for 4.12-rc1: 
NAND, from Boris:
 """
  - some minor fixes/improvements on existing drivers (fsmc, gpio, ifc,
    davinci, brcmnand, omap)
  - a huge cleanup/rework of the denali driver accompanied with core
    fixes/improvements to simplify the driver code
  - a complete rewrite of the atmel driver to support new DT bindings
    make future evolution easier
  - the addition of per-vendor detection/initialization steps to avoid
    extending the nand_ids table with more extended-id entries
 """
 
 SPI NOR, from Cyrille:
 """
 - fixes in the hisi SPI controller driver.
 - fixes in the intel SPI controller driver.
 - fixes in the Mediatek SPI controller driver.
 - fixes to some SPI flash memories not supported the Chip Erase command.
 - add support to some new memory parts (Winbond, Macronix, Micron, ESMT).
 - add new driver for the STM32 QSPI controller.
 """
 
 And a few fixes for Gemini and Versatile platforms on physmap-of
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Merge tag 'for-linus-20170510' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "NAND, from Boris:
   - some minor fixes/improvements on existing drivers (fsmc, gpio, ifc,
     davinci, brcmnand, omap)
   - a huge cleanup/rework of the denali driver accompanied with core
     fixes/improvements to simplify the driver code
   - a complete rewrite of the atmel driver to support new DT bindings
     make future evolution easier
   - the addition of per-vendor detection/initialization steps to avoid
     extending the nand_ids table with more extended-id entries

  SPI NOR, from Cyrille:
   - fixes in the hisi, intel and Mediatek SPI controller drivers
   - fixes to some SPI flash memories not supporting the Chip Erase
     command.
   - add support to some new memory parts (Winbond, Macronix, Micron,
     ESMT).
   - add new driver for the STM32 QSPI controller

  And a few fixes for Gemini and Versatile platforms on physmap-of"

* tag 'for-linus-20170510' of git://git.infradead.org/linux-mtd: (100 commits)
  MAINTAINERS: Update NAND subsystem git repositories
  mtd: nand: gpio: update binding
  mtd: nand: add ooblayout for old hamming layout
  mtd: oxnas_nand: Allocating more than necessary in probe()
  dt-bindings: mtd: Document the STM32 QSPI bindings
  mtd: mtk-nor: set controller's address width according to nor flash
  mtd: spi-nor: add driver for STM32 quad spi flash controller
  mtd: nand: brcmnand: Check flash #WP pin status before nand erase/program
  mtd: nand: davinci: add comment on NAND subpage write status on keystone
  mtd: nand: omap2: Fix partition creation via cmdline mtdparts
  mtd: nand: NULL terminate a of_device_id table
  mtd: nand: Fix a couple error codes
  mtd: nand: allow drivers to request minimum alignment for passed buffer
  mtd: nand: allocate aligned buffers if NAND_OWN_BUFFERS is unset
  mtd: nand: denali: allow to override revision number
  mtd: nand: denali_dt: use pdev instead of ofdev for platform_device
  mtd: nand: denali_dt: remove dma-mask DT property
  mtd: nand: denali: support 64bit capable DMA engine
  mtd: nand: denali_dt: enable HW_ECC_FIXUP for Altera SOCFPGA variant
  mtd: nand: denali: support HW_ECC_FIXUP capability
  ...
 2017-05-11 10:44:22 -07:00
Linus Torvalds d26f552ebb - New Drivers 
- Freescale MXS Low Resolution ADC
    - Freescale i.MX23/i.MX28 LRADC touchscreen
    - Motorola CPCAP Power Button
    - TI LMU (Lighting Management Unit)
    - Atmel SMC (Static Memory Controller)
 
  - New Device Support
    - Add support for X-Powers AXP803 to axp20x
    - Add support for Dialog Semi DA9061 to da9062-core
    - Add support for Intel Cougar Mountain to lpc_ich
    - Add support for Intel Gemini Lake to lpc_ich
 
  - New Functionality
    - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc
    - Add IRQ sense support; motorola-cpcap
    - Add ACPI support; cros_ec
    - Add Reset support; altera-a10sr
    - Add ADC support; axp20x
    - Add AC Power support; axp20x
    - Add Runtime PM support; atmel-ebi, exynos-lpass
    - Add Battery Power Supply support; axp20x
    - Add Clock support; exynos-lpass, hi655x-pmic
 
  - Fix-ups
    - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc
    - Add .remove() method; stm32-timers, exynos-lpass
    - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus
    - Rename variables for clarity; axp20x
    - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power
    - Improve formatting; arizona-core, axp20x
    - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb
    - Simplify/refactor code; arizona-core, atmel-ebi
    - Improve error checking; intel_soc_pmic_core
 
  - Bug Fixes
    - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power
    - Correct max-register value; stm32-timers
    - Extend timeout to account for clock stretching; cros_ec_spi
    - Use correct IRQ trigger type; motorola-cpcap
    - Fix bad use of IRQ sense register; motorola-cpcap
    - Logic error "||" should be "&&"; mxs-lradc-ts
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Merge tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Freescale MXS Low Resolution ADC
   - Freescale i.MX23/i.MX28 LRADC touchscreen
   - Motorola CPCAP Power Button
   - TI LMU (Lighting Management Unit)
   - Atmel SMC (Static Memory Controller)

  New Device Support:
   - Add support for X-Powers AXP803 to axp20x
   - Add support for Dialog Semi DA9061 to da9062-core
   - Add support for Intel Cougar Mountain to lpc_ich
   - Add support for Intel Gemini Lake to lpc_ich

  New Functionality:
   - Add Device Tree support; wm831x-*, axp20x, ti-lmu, da9062, sun4i-gpadc
   - Add IRQ sense support; motorola-cpcap
   - Add ACPI support; cros_ec
   - Add Reset support; altera-a10sr
   - Add ADC support; axp20x
   - Add AC Power support; axp20x
   - Add Runtime PM support; atmel-ebi, exynos-lpass
   - Add Battery Power Supply support; axp20x
   - Add Clock support; exynos-lpass, hi655x-pmic

  Fix-ups:
   - Implicitly specify required headers; motorola-cpcap, intel_soc_pmic_bxtwc
   - Add .remove() method; stm32-timers, exynos-lpass
   - Remove unused code; intel_soc_pmic_core, intel-lpss-acpi, ipaq-micro, atmel-smc, menelaus
   - Rename variables for clarity; axp20x
   - Convert pr_warning() to pr_warn(); db8500-prcmu, sta2x11-mfd, twl4030-power
   - Improve formatting; arizona-core, axp20x
   - Use raw_spinlock_*() variants; asic3, t7l66xb, tc6393xb
   - Simplify/refactor code; arizona-core, atmel-ebi
   - Improve error checking; intel_soc_pmic_core

  Bug Fixes:
   - Ensure OMAP3630/3730 boards can successfully reboot; twl4030-power
   - Correct max-register value; stm32-timers
   - Extend timeout to account for clock stretching; cros_ec_spi
   - Use correct IRQ trigger type; motorola-cpcap
   - Fix bad use of IRQ sense register; motorola-cpcap
   - Logic error "||" should be "&&"; mxs-lradc-ts"

* tag 'mfd-next-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (79 commits)
  input: touchscreen: mxs-lradc: || vs && typos
  dt-bindings: Add AXP803's regulator info
  mfd: axp20x: Support AXP803 variant
  dt-bindings: Add device tree binding for X-Powers AXP803 PMIC
  dt-bindings: Make AXP20X compatible strings one per line
  mfd: intel_soc_pmic_core: Fix unchecked return value
  mfd: menelaus: Remove obsolete local_irq_disable() and local_irq_enable()
  mfd: omap-usb-tll: Configure ULPIAUTOIDLE
  mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode
  mfd: palmas: Fixed spelling mistake in error message
  mfd: lpc_ich: Add support for Intel Gemini Lake SoC
  mfd: hi655x: Add the clock cell to provide WiFi and Bluetooth
  mfd: intel_soc_pmic: Fix a mess with compilation units
  mfd: exynos-lpass: Add runtime PM support
  mfd: exynos-lpass: Add missing remove() function
  mfd: exynos-lpass: Add support for clocks
  mfd: exynos-lpass: Remove pad retention control
  iio: adc: add support for X-Powers AXP20X and AXP22X PMICs ADCs
  mfd: cpcap: Fix bad use of IRQ sense register
  mfd: cpcap: Use ack_invert interrupts
  ...
 2017-05-03 12:16:25 -07:00
Boris Brezillon 4407319d8f memory: atmel-ebi: Add PM ops 
Add a ->resume() hook to make sure the EBI dev configs are correctly
restored when resuming the platform.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-04-27 09:25:06 +01:00
Boris Brezillon aaa572b945 memory: atmel-ebi: Add missing ->numcs assignment 
ebid->numcs is never assigned, set it to numcs after allocating the
EBI dev object.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-04-27 09:25:06 +01:00
Boris Brezillon 9453fa4694 memory: atmel-ebi: Change naming scheme 
The EBI block is not only available on at91 SoCs, but also on avr32 ones.
Change the structure and function prefixes from at91_ebi to atmel_ebi to
match this fact and make the prefix and driver name consistent.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-04-27 09:25:06 +01:00
Boris Brezillon d9f81dad16 memory: atmel-ebi: Stop using reg_field objects for simple things 
Turn the ->ebi_csa reg field into a simple offset that can be used with
with the matrix regmap. Using reg fields was overkill for this use case.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-04-27 09:25:06 +01:00
Boris Brezillon 8eb8c7d844 memory: atmel-ebi: Simplify SMC config code 
New helpers/macros have been to atmel-smc.h introduced to simplify SMC
regs manipulation. Rework the code to use those helpers, and simplify
the ->xlate_config(), ->get_config() and ->apply_config() implementations.

SMC configs are now stored in a struct atmel_smc_cs_conf object that
directly contains registers values, which should help implementing
->suspend()/->resume() hooks.

We can also get rid of those regmap fields (and the associated ->init()
hook) which are not longer needed thanks to the
atmel_[h]smc_cs_conf_{apply,get}() helpers.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2017-04-27 09:25:06 +01:00
Alison Wang 4edafe391e memory: ifc: Update dependency of IFC for LS1021A 
As Freescale/NXP IFC controller is available on LS1021A, the dependency
for LS1021A is added.

LS1021A is an earlier product and is not compatible with later
LayerScape architecture. So ARCH_LAYERSCAPE can't cover LS1021A.

Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
 2017-03-16 10:30:02 +01:00
Tony Lindgren e24bce8fb4 Linux 4.11-rc1 
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Merge tag 'v4.11-rc1' into omap-for-v4.11/fixes

Linux 4.11-rc1
 2017-03-06 08:37:53 -08:00
Ladislav Michl 7807e086a2 ARM: OMAP2+: gpmc-onenand: propagate error on initialization failure 
gpmc_probe_onenand_child returns success even on gpmc_onenand_init
failure. Fix that.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
 2017-02-28 09:06:23 -08:00
Linus Torvalds b2e3c4319d ARM: SoC driver updates 
Driver updates for ARM SoCs.
 
 A handful of driver changes this time around. The larger changes are:
 
  - Reset drivers for hi3660 and zx2967
  - AHCI driver for Davinci, acked by Tejun and brought in here due to
    platform dependencies
  - Cleanups of atmel-ebi (External Bus Interface)
  - Tweaks for Rockchip GRF (General Register File) usage (kitchensink misc
    register range on the SoCs)
  - PM domains changes for support of two new ZTE SoCs (zx296718 and zx2967)
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs.

  A handful of driver changes this time around. The larger changes are:

   - Reset drivers for hi3660 and zx2967

   - AHCI driver for Davinci, acked by Tejun and brought in here due to
     platform dependencies

   - Cleanups of atmel-ebi (External Bus Interface)

   - Tweaks for Rockchip GRF (General Register File) usage (kitchensink
     misc register range on the SoCs)

   - PM domains changes for support of two new ZTE SoCs (zx296718 and
     zx2967)"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  soc: samsung: pmu: Add register defines for pad retention control
  reset: make zx2967 explicitly non-modular
  reset: core: fix reset_control_put
  soc: samsung: pm_domains: Read domain name from the new label property
  soc: samsung: pm_domains: Remove message about failed memory allocation
  soc: samsung: pm_domains: Remove unused name field
  soc: samsung: pm_domains: Use full names in subdomains registration log
  sata: ahci-da850: un-hardcode the MPY bits
  sata: ahci-da850: add a workaround for controller instability
  sata: ahci: export ahci_do_hardreset() locally
  sata: ahci-da850: implement a workaround for the softreset quirk
  sata: ahci-da850: add device tree match table
  sata: ahci-da850: get the sata clock using a connection id
  soc: samsung: pmu: Remove duplicated define for ARM_L2_OPTION register
  memory: atmel-ebi: Enable the SMC clock if specified
  soc: samsung: pmu: Remove unused and duplicated defines
  memory: atmel-ebi: Properly handle multiple reference to the same CS
  memory: atmel-ebi: Fix the test to enable generic SMC logic
  soc: samsung: pm_domains: Add new Exynos5433 compatible
  soc: samsung: pmu: Add dummy support for Exynos5433 SoC
  ...
 2017-02-23 15:57:04 -08:00
Olof Johansson 2998954c40 Drivers for 4.11 #2: 
- more EBI fixes
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Merge tag 'at91-ab-4.11-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers

Drivers for 4.11 #2:

 - more EBI fixes

* tag 'at91-ab-4.11-drivers2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  memory: atmel-ebi: Enable the SMC clock if specified
  memory: atmel-ebi: Properly handle multiple reference to the same CS
  memory: atmel-ebi: Fix the test to enable generic SMC logic

Signed-off-by: Olof Johansson <olof@lixom.net>
 2017-01-29 21:05:16 -08:00
Olof Johansson 95f4e568eb memory: tegra: Changes for v4.11-rc1 
This contains a single commit that plugs a potential device node leak in
 error handling code.
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Merge tag 'tegra-for-4.11-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers

memory: tegra: Changes for v4.11-rc1

This contains a single commit that plugs a potential device node leak in
error handling code.

* tag 'tegra-for-4.11-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Add a missing 'of_node_put()' call

Signed-off-by: Olof Johansson <olof@lixom.net>
 2017-01-29 20:57:59 -08:00
Boris Brezillon 87108dc78e memory: atmel-ebi: Enable the SMC clock if specified 
Newer versions of the SMC block requires the SMC clock to be enabled
before the SMC logic can be used.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-01-27 10:28:54 +01:00
Boris Brezillon 987e079eca memory: atmel-ebi: Properly handle multiple reference to the same CS 
Some devices are defining several sub-ranges within the same CS iomem
range. In this case, we should not duplicate the EBI device config.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-01-27 10:15:56 +01:00
Boris Brezillon 427456e477 memory: atmel-ebi: Fix the test to enable generic SMC logic 
We should test the apply value and not the ret one here.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Fixes: 6a4ec4cd08 ("memory: add Atmel EBI (External Bus Interface) driver")
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-01-27 10:15:56 +01:00
Christophe Jaillet b92f4380a1 memory: tegra: Add a missing 'of_node_put()' call 
If 'of_find_device_by_node()' fails, an 'of_node_put()' call is missing in
the error handling path.
Fix it by reordering the code.

While at it, remove some empty lines in a more or less similar construction
a few lines below.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Thierry Reding <treding@nvidia.com>
 2017-01-25 07:57:13 +01:00
Bartosz Golaszewski f95bd04120 memory: aemif: allow passing device lookup table as platform data 
TI aemif driver creates its own subnodes of the device tree in order
to guarantee that all child devices are probed after the AEMIF timing
parameters are configured.

Some devices (e.g. da850) use struct of_dev_auxdata for clock lookup
but nodes created from within the aemif driver can't access the lookup
table.

Create a platform data structure that holds a pointer to
of_dev_auxdata so that we can use it with of_platform_populate().

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-01-19 12:42:25 +01:00
Boris Brezillon ee19428950 memory/atmel-ebi: Fix ns <-> cycles conversions 
at91sam9_ebi_get_config() is incorrectly converting timings in clock
cycles into timings in nanoseconds by multiplying the cycle values by
the clk rate instead of the clk period.

at91sam9_ebi_xslate_config() has the same problem for the
tdf_ns -> tdf_cycles conversion.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reported-by: Chris Leahy <leahycm@gmail.com>
Fixes: 6a4ec4cd08 ("memory: add Atmel EBI (External Bus Interface) driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-01-10 16:01:34 +01:00
Arnd Bergmann 11128b9021 Fixes for drivers already queued to prevent 
section mismatch warnings introduced by them.
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Merge tag 'davinci-for-v4.10/drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into next/drivers

Pull "DaVinci driver updates for v4.10 (part 2)" from Sekhar Nori:

Fixes for drivers already queued to prevent
section mismatch warnings introduced by them.

* tag 'davinci-for-v4.10/drivers-2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
  memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name()
  bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name()
 2016-11-30 14:58:00 +01:00
Bartosz Golaszewski d0c7546f62 memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name() 
In order to avoid a section mismatch drop the call to
of_flat_dt_get_machine_name() when printing the error message.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
 2016-11-23 20:26:42 +05:30
Olof Johansson 555b2b5d25 Drivers for 4.10: 
- few fixes for the memory drivers
  - minimal security module driver
  - support for the Secure SRAM
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Merge tag 'at91-ab-4.10-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into next/drivers

Drivers for 4.10:

 - few fixes for the memory drivers
 - minimal security module driver
 - support for the Secure SRAM

* tag 'at91-ab-4.10-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  misc: sram: add Atmel securam support
  misc: sram: document new compatible
  ARM: at91: add secumod register definitions
  Documentation: dt: atmel-at91: Document secumod bindings
  memory: atmel-sdramc: use builtin_platform_driver to simplify the code
  memory: atmel-ebi: fix return value check in at91_ebi_dev_disable()

Signed-off-by: Olof Johansson <olof@lixom.net>
 2016-11-18 09:53:55 -08:00
Bartosz Golaszewski 62a8a73923 memory: davinci: add support for da8xx DDR2/mDDR controller 
Create a new driver for the da8xx DDR2/mDDR controller and implement
support for writing to the Peripheral Bus Burst Priority Register.

Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
[nsekhar@ti.com: subject line adjustment]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
 2016-11-14 17:18:34 +05:30
Wei Yongjun af69240060 memory: atmel-sdramc: use builtin_platform_driver to simplify the code 
Use the builtin_platform_driver() macro to make the code simpler.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2016-10-20 11:59:57 +02:00
Wei Yongjun ecc2d430fa memory: atmel-ebi: fix return value check in at91_ebi_dev_disable() 
Fix the retrn value check which testing the wrong variable
in at91_ebi_dev_disable().

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2016-10-20 11:59:22 +02:00
Linus Torvalds 6afd563d4b ARM: SoC driver updates for v4.9 
Driver updates for ARM SoCs, including a couple of newly added drivers:
 
 - The Qualcomm external bus interface 2 (EBI2), used in some of their
   mobile phone chips for connecting flash memory, LCD displays or
   other peripherals
 
 - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the
   EFUSE based on that firmware interface.
 
 - Perf support for the AppliedMicro X-Gene performance monitor unit
 
 - Reset driver for STMicroelectronics STM32
 
 - Reset driver for SocioNext UniPhier SoCs
 
 Aside from these, there are minor updates to SoC-specific bus,
 clocksource, firmware, pinctrl, reset, rtc and pmic drivers.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs, including a couple of newly added
  drivers:

   - The Qualcomm external bus interface 2 (EBI2), used in some of their
     mobile phone chips for connecting flash memory, LCD displays or
     other peripherals

   - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for
     the EFUSE based on that firmware interface.

   - Perf support for the AppliedMicro X-Gene performance monitor unit

   - Reset driver for STMicroelectronics STM32

   - Reset driver for SocioNext UniPhier SoCs

  Aside from these, there are minor updates to SoC-specific bus,
  clocksource, firmware, pinctrl, reset, rtc and pmic drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
  bus: qcom-ebi2: depend on HAS_IOMEM
  pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181
  clk: mvebu: Add clk support for the orion5x SoC mv88f5181
  dt-bindings: EXYNOS: Add Exynos5433 PMU compatible
  clocksource: exynos_mct: Add the support for ARM64
  perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver
  Documentation: Add documentation for APM X-Gene SoC PMU DTS binding
  MAINTAINERS: Add entry for APM X-Gene SoC PMU driver
  bus: qcom: add EBI2 driver
  bus: qcom: add EBI2 device tree bindings
  rtc: rtc-pm8xxx: Add support for pm8018 rtc
  nvmem: amlogic: Add Amlogic Meson EFUSE driver
  firmware: Amlogic: Add secure monitor driver
  soc: qcom: smd: Reset rx tail rather than tx
  memory: atmel-sdramc: fix a possible NULL dereference
  reset: hi6220: allow to compile test driver on other architectures
  reset: zynq: add driver Kconfig option
  reset: sunxi: add driver Kconfig option
  reset: stm32: add driver Kconfig option
  reset: socfpga: add driver Kconfig option
  ...
 2016-10-07 21:23:40 -07:00
Linus Torvalds 7a53eea1f7 Char/Misc driver update for 4.9-rc1 
Here's the "big" char and misc driver update for 4.9-rc1.
 
 Lots of little things here, all over the driver tree for subsystems that
 flow through me.  Nothing major that I can discern, full details are in
 the shortlog.
 
 All have been in the linux-next tree with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the "big" char and misc driver update for 4.9-rc1.

  Lots of little things here, all over the driver tree for subsystems
  that flow through me. Nothing major that I can discern, full details
  are in the shortlog.

  All have been in the linux-next tree with no reported issues"

* tag 'char-misc-4.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (144 commits)
  drivers/misc/hpilo: Changes to support new security states in iLO5 FW
  at25: fix debug and error messaging
  misc/genwqe: ensure zero initialization
  vme: fake: remove unexpected unlock in fake_master_set()
  vme: fake: mark symbols static where possible
  spmi: pmic-arb: Return an error code if sanity check fails
  Drivers: hv: get rid of id in struct vmbus_channel
  Drivers: hv: make VMBus bus ids persistent
  mcb: Add a dma_device to mcb_device
  mcb: Enable PCI bus mastering by default
  mei: stop the stall timer worker if not needed
  clk: probe common clock drivers earlier
  vme: fake: fix build for 64-bit dma_addr_t
  ttyprintk: Neaten and simplify printing
  mei: me: add kaby point device ids
  coresight: tmc: mark symbols static where possible
  coresight: perf: deal with error condition properly
  Drivers: hv: hv_util: Avoid dynamic allocation in time synch
  fpga manager: Add hardware dependency to Zynq driver
  Drivers: hv: utils: Support TimeSync version 4.0 protocol samples.
  ...
 2016-10-03 19:57:49 -07:00