Commit Graph

35877 Commits

Author SHA1 Message Date
Shawn Guo 155b2fd3d6 Merge branch 'imx/soc' into imx/dt 2014-09-16 10:24:58 +08:00
Shawn Guo ee64100953 Immutable branch between MFD and some ARM sub-arch maintainers.
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Merge tag 'ib-mfd-arm-v3.18' into imx/dt

Immutable branch between MFD and some ARM sub-arch maintainers.
2014-09-16 10:24:16 +08:00
Fabio Estevam 64546e9fe3 ARM: imx_v6_v7_defconfig updates
The rtc isl1208 driver is used by mx6 nitrogen board, so let's enable it by
default.

The fsl sai driver is used by the vf610-twr board, so let's enable it by
default.

simple-audio-card driver is used by the vf610-twr board, so let's enable it by
default.

Generated this patch by doing:

- make imx_v6_v7_defconfig
- make menuconfig and manually select options
- make savedefconfig
- cp defconfig arch/arm/configs/imx_v6_v7_defconfig

,which results in some additional cleanups.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:43 +08:00
Fabio Estevam 0650f855d2 ARM: imx_v4_v5_defconfig: Select CONFIG_IMX_WEIM
The imx weim driver is used by some mx27/mx1 boards, so let's enable it by
default.

Generated this patch by doing:

- make imx_v4_v5_defconfig
- make menuconfig and manually select CONFIG_IMX_WEIM
- make savedefconfig
- cp defconfig arch/arm/configs/imx_v4_v5_defconfig

,which results in some additional cleanups.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:41 +08:00
Joe Perches 75fd32b8ef arm: mach-imx: Convert pr_warning to pr_warn
Use the more common pr_warn.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:41 +08:00
Anson Huang bad3db104f ARM: imx: source gpt per clk from OSC for system timer
On i.MX6Q TO > 1.0, i.MX6DL and i.MX6SX, gpt per clock
can be from OSC instead of ipg_per, as ipg_per's rate
may be scaled when system enter low bus mode, to keep
system timer NOT drift, better to make gpt per clock
at fixed rate, here add support for gpt per clock to
be from OSC which is at fixed rate always.

There are some difference on this implementation of
gpt per clock source, see below for details:

i.MX6Q TO > 1.0: GPT_CR_CLKSRC, b'101 selects fix clock
    of OSC / 8 for gpt per clk;
i.MX6DL and i.MX6SX: GPT_CR_CLKSRC, b'101 selects OSC
    for gpt per clk, and we must enable GPT_CR_24MEM to
    enable OSC clk source for gpt per, GPT_PR_PRESCALER24M
    is for pre-scaling of this OSC clk, here set it to 8
    to make gpt per clk is 3MHz;
i.MX6SL: ipg_per can be from OSC directly, so no need to
    implement this new clk source for gpt per.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:41 +08:00
Anson Huang 6f11c69d35 ARM: imx: add gpt_3m clk for i.mx6qdl
Add gpt_3m clock for i.mx6qdl, as gpt can source clock
from OSC, some i.MX6 series SOCs has fixed divider of
8 for gpt clock, so here add a fix clk of gpt_3m.

i.MX6Q TO1.0 has no gpt_3m option, so force it to be
from ipg_per.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:40 +08:00
Shawn Guo 69d9a3fe06 ARM: imx: fix register offset of pll7_usb_host gate clock
There is a copy&paste error on register offset of pll7_usb_host gate
clock introduced by i.MX6 PLL bypass support patches.  The error breaks
the ENET function, because it overwrites the pll6_enet gate bit.

Correct the offset for all i.MX6 clock drivers.

Thanks to Fugang Duan <B38611@freescale.com> for spotting the error.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:40 +08:00
Shengjiu Wang dbaf381ffb ARM: clk-imx6sl: refine clock tree for SSI
Each SSI has "ssi", "ssi_ipg" clocks, and they share same gate bits.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:09:39 +08:00
Shawn Guo dc4805c2e7 ARM: imx: remove ENABLE and BYPASS bits from clk-pllv3 driver
Since ENABLE and BYPASS bits of PLLs are now implemented as separate
gate and mux clocks by clock drivers, the code handling these two bits
can be removed from clk-pllv3 driver.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:49 +08:00
Shawn Guo db7c065945 ARM: imx6sx: add BYPASS support for PLL clocks
This is the same change for imx6sx clock driver as "ARM: imx6q: add BYPASS
support for PLL clocks" for imx6q.  The difference is that only anaclk1
is available on imx6sx.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:49 +08:00
Shawn Guo e90f41990d ARM: imx6sl: add BYPASS support for PLL clocks
This is the same change for imx6sl clock driver as "ARM: imx6q: add BYPASS
support for PLL clocks" for imx6q.  The difference is that only anaclk1
is available on imx6sl.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:48 +08:00
Shawn Guo b1f156db47 ARM: imx6q: add BYPASS support for PLL clocks
The imx6q clock driver currently hard-codes all PLL clocks to source
from OSC24M without BYPASS support.  The patch adds the missing lvds_in
clock which is mutually exclusive with lvds_gate, and implements BYPASS
and BYPASS_CLK_SRC selection for PLL clocks as per Figure 10-3. Primary
Clock Generation in IMX6DQRM, i.e. both BYPASS_CLK_SRC and BYPASS bits
are implemented as mux clocks, and ENABLE bit of PLL clocks is
implemented as a gate clock after BYPASS mux.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:48 +08:00
Shawn Guo 19d863446a ARM: imx: add an exclusive gate clock type
There are a couple of gate clocks are mutually exclusive on i.MX6, i.e.
LVDSCLK1_IBEN and LVDSCLK1_OBEN.  They cannot be enabled simultaneously.
This patches adds an exclusive gate clock type specifically for such
case.  The clock driver will need to call imx_clk_gate_exclusive() to
register a gate clock with parameter exclusive_mask indicating the mask
of gate bits which are mutually exclusive to this gate clock.

Right now, it only handles the exclusive gate clocks which are defined
in a single hardware register, which is the case we're running into
today.  But it can be extended to handle exclusive gate clocks defined
in different registers later if needed.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:48 +08:00
Shengjiu Wang bd404b1d33 ARM: clk-imx6q: refine clock tree for SSI
Each SSI has "ssi", "ssi_ipg" clocks, and they share same gate bits.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:47 +08:00
Shengjiu Wang aec247d4ac ARM: clk-imx6q: refine clock tree for ASRC
ASRC has "asrc", "asrc_ipg", "asrc_mem" clocks, and they share
the same gate bits.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:47 +08:00
Fancy Fang e37c1ad032 ARM: clk-imx6sl: correct the pxp and epdc axi clock selections
The parent clocks of IMX6SL_CLK_PXP_AXI_SEL and IMX6SL_CLK_EPDC_AXI_SEL
clocks are not the same. So split the epdc_pxp_sels into two different
clock selections 'pxp_axi_sels' and 'epdc_axi_sels'.

Signed-off-by: Fancy Fang <chen.fang@freescale.com>
Signed-off-by: Robby Cai <R63905@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:46 +08:00
Shengjiu Wang 7bce3d23ec ARM: clk-imx6q: refine clock tree for ESAI
There are three clock for ESAI, esai_extal, esai_ipg, esai_mem. Rename
'esai' to 'esai_extal', 'esai_ahb' to 'esai_mem', and add 'esai_ipg'.
Make the clock for ESAI more clear and align them with imx6sx.

Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:46 +08:00
Fabio Estevam 0783a56087 ARM: clk-imx6sl: Select appropriate parents for LCDIF clocks
PLL5 is well suited for being the parent of IMX6SL_CLK_LCDIF_PIX_SEL and
PLL2_PFD for IMX6SL_CLK_LCDIF_AXI_SEL.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:46 +08:00
Fabio Estevam bad66c3ebd ARM: clk-imx6sl: Remove csi_lcdif_sels[]
Currently csi_lcdif_sels[] is a shared array for the providing the possible
clock parents for csi and lcdif blocks.

This is not correct, as csi and lcdif do not share the same clock parents.

Introduce csi_sels[] for the csi and lcdif_axi_sels[] for the lcdif clocks in
order to describe the parents correctly.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:45 +08:00
Stefan Agner 21231f81f1 ARM: imx: clk-vf610: Add USBPHY clocks
This commit adds PLL7 which is required for USBPHY1. It also adds
the USB PHY and USB Controller clocks and the gates to enable them.

Acked-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:45 +08:00
Anson Huang 47526e410d ARM: imx: add cpufreq support for i.mx6sx
Add cpufreq support for i.MX6SX, using common
i.MX6Q cpufreq driver.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:45 +08:00
Stefan Agner 3b18dd7a86 ARM: imx: clk-vf610: introduce clks_init_on
At the end of the boot process, the clock framework might disable
required main PLL's. So far, this was no issue since drivers
requested clocks, which are descended of the main PLL's (e.g.
pll1_pfd1, which provides the system clock).

To archive the full 500MHz system clock, DDR clock need to be a
descendant of PLL2 rather than PLL1 (DDRC_CLK_SEL set to 0). The
bootloader sets up the clocks accordingly before making use of
DDR at all. However, in Linux, there is no driver using PLL2,
which lead to PLL2 being disabled by the clock framework.

With this patch, we make sure that the main system clock and the
DDR clock are initially enabled and are kept enabled.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:44 +08:00
Alexander Shiyan 24980dc810 ARM: i.MX1: Add devicetree support
This patch adds basic devicetree support for i.MX1 based SoCs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-16 10:06:44 +08:00
Jason Liu c896e93850 ARM: i.MX6: add more chip revision support
Add more revision support for the new i.MX6DQ tape-out (TO1.5).  This
TO1.5 is the Rev 1.3 as documented in i.MX6DQ data sheet, because TO1.3
and TO1.4 are never revealed.

Signed-off-by: Jason Liu <r64343@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-09-16 10:06:44 +08:00
Fabio Estevam 64d14a31d5 ARM: imx: Remove mach-mxt_td60 board file
All the current support of mach-mxt_td60 board can be converted to devicetree.

Remove the board file.

Cc: Alan Carvalho de Assis <acassis@gmail.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-10 11:17:44 +08:00
Alexander Shiyan 13758c528c ARM: i.MX: Remove i.MX1 ADS board support
mx1ads.c can be replaced with devicetree equivalent: imx1-ads.dts,
so remove the board file.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:02 +08:00
Xiubo Li 2b10368a5c ARM: dts: vf610-twr: remove useless property for sound card.
This was added by:
Commit 8128c4f36 ("ARM: dts: vf610-twr: Add simple-card support.")

This useless property may cause some confusions for users.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:02 +08:00
Shawn Guo ee295d7ff4 ARM: imx: remove imx_scu_standby_enable()
With commit c716483c3d ("ARM: 8122/1: smp_scu: enable SCU standby
support"), the STANDBY bit of SCU is handled by core function
scu_enable().  So imx_scu_standby_enable() can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:02 +08:00
Alexander Shiyan 1ca7070d1d ARM: i.MX: Remove Phytec i.MX27 PCM038/PCM970 board files
pcm970-baseboard.c and mach-pcm038.c can be replaced with their
devicetree equivalents: imx27-phytec-phycore-rdk.dts and
imx27-phytec-phycore-som.dtsi respectively, so remove the board files.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:02 +08:00
Alexander Shiyan 7c5deaf775 ARM: i.MX: Remove mach-cpuimx27sd board file
eukrea_mbimx27-baseboard.c and mach-cpuimx27.c can be replaced with their
devicetree equivalents: imx27-eukrea-mbimxsd27-baseboard.dts and
imx27-eukrea-cpuimx27.dtsi respectively, so remove the board files.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:01 +08:00
Alexander Stein 58b71c3ec7 ARM: imx: iomux: Do not export symbol without public declaration
The iomux function declarations are in headers only accessible in this
directory. Thus those can't be used in any module. None of the
objects in this directory is tristate. Neither can the header be included
in out-of-tree modules.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-09-01 22:00:01 +08:00
Linus Torvalds 94559a4a81 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Various assorted fixes:

   - a couple of patches from Mark Rutland to resolve an errata with
     Cortex-A15 CPUs.
   - fix cpuidle for the CPU part ID changes in the last merge window
   - add support for a relocation which ARM binutils is generating in
     some circumstances"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8130/1: cpuidle/cpuidle-big_little: fix reading cpu id part number
  ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy strex
  ARM: 8128/1: abort: don't clear the exclusive monitors
  ARM: 8127/1: module: add support for R_ARM_TARGET1 relocations
2014-08-31 17:02:57 -07:00
Linus Torvalds 19ed3eb975 ARM: SoC fixes for 3.17-rc
Here's the weekly batch of fixes from arm-soc.
 
 The delta is a largeish negative delta, due to revert of SMP support for Broadcom's
 STB SoC -- it was accidentally merged before some issues had been addressed, so they
 will make a new attempt for 3.18. I didn't see a need for a full revert of the whole
 platform due to this, we're keeping the rest enabled.
 
 The rest is mostly:
 
 * A handful of DT fixes for i.MX (Hummingboard/Cubox-i in particular)
 * Some MTD/NAND fixes for OMAP
 * Minor DT fixes for shmobile
 * Warning fix for UP builds on vexpress/spc
 
 There's also a couple of patches that wires up hwmod on TI's DRA7 SoC
 so it can boot. Drivers and the rest had landed for 3.17, and it's small
 and isolated so it made sense to pick up now even if it's not a bugfix.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's the weekly batch of fixes from arm-soc.

  The delta is a largeish negative delta, due to revert of SMP support
  for Broadcom's STB SoC -- it was accidentally merged before some
  issues had been addressed, so they will make a new attempt for 3.18.
  I didn't see a need for a full revert of the whole platform due to
  this, we're keeping the rest enabled.

  The rest is mostly:

   - a handful of DT fixes for i.MX (Hummingboard/Cubox-i in particular)
   - some MTD/NAND fixes for OMAP
   - minor DT fixes for shmobile
   - warning fix for UP builds on vexpress/spc

  There's also a couple of patches that wires up hwmod on TI's DRA7 SoC
  so it can boot.  Drivers and the rest had landed for 3.17, and it's
  small and isolated so it made sense to pick up now even if it's not a
  bugfix"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  vexpress/spc: fix a build warning on array bounds
  ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
  ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants
  MAINTAINERS: catch special Rockchip code locations
  ARM: dts: microsom-ar8035: MDIO pad must be set open drain
  ARM: dts: omap54xx-clocks: Fix the l3 and l4 clock rates
  ARM: brcmstb: revert SMP support
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  ARM: dts: Enable UART wake-up events for beagleboard
  ARM: dts: Remove twl6030 clk32g "regulator"
  ARM: OMAP2+: omap_device: remove warning that clk alias already exists
  ARM: OMAP: fix %d confusingly prefixed with 0x in format string
  ARM: dts: DRA7: fix interrupt-cells for GPIO
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  ARM: dts: omap3430-sdp: Revert to using software ECC for NAND
  ARM: OMAP2+: GPMC: Support Software ECC scheme via DT
  mtd: nand: omap: Revert to using software ECC by default
  ARM: dts: hummingboard/cubox-i: change SPDIF output to be more descriptive
  ARM: dts: hummingboard/cubox-i: add USB OC pinctrl configuration
  ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
  ...
2014-08-31 17:01:19 -07:00
Alex Shi e160cc1768 vexpress/spc: fix a build warning on array bounds
With ARCH_VEXPRESS_SPC option, kernel build has the following
warning:

arch/arm/mach-vexpress/spc.c: In function ‘ve_spc_clk_init’:
arch/arm/mach-vexpress/spc.c:431:38: warning: array subscript is below array bounds [-Warray-bounds]
  struct ve_spc_opp *opps = info->opps[cluster];
                                      ^
since 'cluster' maybe '-1' in UP system. This patch does a active
checking to fix this issue.

Signed-off-by: Alex Shi <alex.shi@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-31 10:22:10 -07:00
Olof Johansson 98fd150836 Add basic subarchitecture support for the DRA72x and DRA74x. These
are OMAP2+ derivative SoCs.  This should be low-risk to existing OMAP
 platforms.
 
 Basic build, boot, and PM test logs are available here:
 
 http://www.pwsan.com/omap/testlogs/hwmod-a-early-v3.17-rc/20140827194314/
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Merge tag 'for-v3.17-rc/omap-dra72x-d74x-support-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes

Pull "ARM: OMAP2+: DRA72x/DRA74x basic support" from Tony Lindgren:

Add basic subarchitecture support for the DRA72x and DRA74x.  These
are OMAP2+ derivative SoCs.  This should be low-risk to existing OMAP
platforms.

Basic build, boot, and PM test logs are available here:

http://www.pwsan.com/omap/testlogs/hwmod-a-early-v3.17-rc/20140827194314/

* tag 'for-v3.17-rc/omap-dra72x-d74x-support-a' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
  ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
  ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-31 10:19:43 -07:00
Vivek Goyal b41d34b46a kexec: remove CONFIG_KEXEC dependency on crypto
New system call depends on crypto.  As it did not have a separate config
option, CONFIG_KEXEC was modified to select CRYPTO and CRYPTO_SHA256.

But now previous patch introduced a new config option for new syscall.
So CONFIG_KEXEC does not require crypto.  Remove that dependency.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-29 16:28:16 -07:00
Steve Twiss bd597f47ca devicetree: Dialog Semiconductor consolidate existing vendor prefixes to standardise on 'dlg'
This patch series updates the device tree vendor prefix for
Dialog Semiconductor.

Various methods are currently used throughout the kernel: 'diasemi',
'dialog' and 'dlg'. Others have also been suggested.

This patch set aims to consolidate the usage of the vendor prefix to
use a common standard. The prefix 'dlg' is used.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-29 09:26:29 +01:00
Linus Torvalds 2db3cff2d3 Couple of simple fixes due for the 3.17 rcs
(and a sneaky document addition that slipped from the previous pull-request)
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Merge tag 'mfd-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull mfd fixes from Lee Jones:
 "Couple of simple fixes due for the 3.17 rcs

  (and a sneaky document addition that slipped from the previous
  pull-request)"

* tag 'mfd-fixes-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: twl4030-power: Fix PM idle pin configuration to not conflict with regulators
  mfd: tc3589x: Add device tree bindings
  mfd: ab8500-core: Use 'ifdef' for config options
  mfd: htc-i2cpld: Fix %d confusingly prefixed with 0x in format string
  mfd: omap-usb-host: Fix %d confusingly prefixed with 0x in format string
2014-08-28 10:46:25 -07:00
Tony Lindgren daebabd578 mfd: twl4030-power: Fix PM idle pin configuration to not conflict with regulators
Commit 43fef47f94 (mfd: twl4030-power: Add a configuration to turn
off oscillator during off-idle) added support for configuring the PMIC
to cut off resources during deeper idle states to save power.

This however caused regression for n900 display power that needed the
PMIC configuration to be disabled with commit d937678ab6 (ARM: dts:
Revert enabling of twl configuration for n900).

Turns out the root cause of the problem is that we must use
TWL4030_RESCONFIG_UNDEF instead of DEV_GRP_NULL to avoid disabling
regulators that may have been enabled before the init function
for twl4030-power.c runs. With TWL4030_RESCONFIG_UNDEF we let the
regulator framework control the regulators like it should. Here we
need to only configure the sys_clken and sys_off_mode triggers for
the regulators that cannot be done by the regulator framework as
it's not running at that point.

This allows us to enable the PMIC configuration for n900.

Fixes: 43fef47f94 (mfd: twl4030-power: Add a configuration to turn off oscillator during off-idle)

Cc: stable@vger.kernel.org # v3.16
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-28 15:57:55 +01:00
Rajendra Nayak f7f7a29bf0 ARM: DRA7: hwmod: Add dra74x and dra72x specific ocp interface lists
To deal with IPs which are specific to dra74x and dra72x, maintain seperate
ocp interface lists, while keeping the common list for all common IPs.

Move USB OTG SS4 to dra74x only list since its unavailable in
dra72x and is giving an abort during boot. The dra72x only list
is empty for now and a placeholder for future hwmod additions which
are specific to dra72x.

Fixes: d904b38df0 ("ARM: DRA7: hwmod: Add SYSCONFIG for usb_otg_ss")
Reported-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
[paul@pwsan.com: fixed comment style to conform with CodingStyle]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-08-27 19:38:23 -06:00
Rajendra Nayak af438fec6c ARM: DRA7: Add support for soc_is_dra74x() and soc_is_dra72x() variants
Use the corresponding compatibles to identify the devices.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2014-08-27 19:38:22 -06:00
Olof Johansson 0dc0d9e18e Renesas ARM Based SoC Clock Fixes For v3.17
* ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
 
   This resolves a problem introduced by 4bfb358b1d
   ("ARM: shmobile: Add r8a7791 legacy SDHI clocks")
   which was included in v3.15.
 
   This fix does not have any run-time affect at this time.
 
 * ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR
 
   This resolves a problem introduced by 9f13ee6f83
   ("ARM: shmobile: r8a7790: add div4 clocks")
   which was included in v3.11.
 
   This fix does not have any run-time affect at this time.
 
 * ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name
 
   This resolves a problem introduced by a0f7e7496d
   ("ARM: shmobile: sh73a0: add CMT1 clock support for DT")
   which was included in v3.17-rc1.
 
   This fix does not have any run-time affect at this time as the clock in
   question is used by a SCIF device that is not enabled by default.
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Merge tag 'renesas-clock-fixes-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Merge "Renesas ARM Based SoC Clock Fixes For v3.17" from Simon Horman:

* ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR

  This resolves a problem introduced by 4bfb358b1d
  ("ARM: shmobile: Add r8a7791 legacy SDHI clocks")
  which was included in v3.15.

  This fix does not have any run-time affect at this time.

* ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR

  This resolves a problem introduced by 9f13ee6f83
  ("ARM: shmobile: r8a7790: add div4 clocks")
  which was included in v3.11.

  This fix does not have any run-time affect at this time.

* ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name

  This resolves a problem introduced by a0f7e7496d
  ("ARM: shmobile: sh73a0: add CMT1 clock support for DT")
  which was included in v3.17-rc1.

  This fix does not have any run-time affect at this time as the clock in
  question is used by a SCIF device that is not enabled by default.

* tag 'renesas-clock-fixes-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7791: add missing 0x0100 for SDCKCR
  ARM: shmobile: r8a7790: add missing 0x0100 for SDCKCR
  ARM: shmobile: sh73a0: Remove spurious 0x from SCIFB clock name

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-27 15:14:05 -07:00
Olof Johansson e1e5b71843 i.MX fixes for 3.17, 2nd take:
- Fixes suspend/resume issue on imx53-qsrb due to PMIC IRQ pin
    configuration missing
  - A couple small SolidRun board fixes/correction from Rabeeh
    and Russell
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Merge tag 'imx-fixes-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Merge "ARM: imx: fixes for 3.17, 2nd take" from Shawn Guo:

i.MX fixes for 3.17, 2nd take:
 - Fixes suspend/resume issue on imx53-qsrb due to PMIC IRQ pin
   configuration missing
 - A couple small SolidRun board fixes/correction from Rabeeh
   and Russell

* tag 'imx-fixes-3.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: microsom-ar8035: MDIO pad must be set open drain
  ARM: dts: hummingboard/cubox-i: change SPDIF output to be more descriptive
  ARM: dts: hummingboard/cubox-i: add USB OC pinctrl configuration
  ARM: dts: imx53-qsrb: Fix suspend/resume

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-08-27 15:12:22 -07:00
Olof Johansson c2e1da63e6 Fixes for omaps, mostly to revert NAND back to using software ECC
by default as that's what many boards expect. Also fixes for omap5
 clocks, PM wake-up events, GPIO interrupt cells for dra7, and few
 other minor fixes.
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Merge tag 'omap-for-v3.17/fixes-against-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Merge "omap fixes against v3.17-rc2" from Tony Lindgren:

Fixes for omaps, mostly to revert NAND back to using software ECC
by default as that's what many boards expect. Also fixes for omap5
clocks, PM wake-up events, GPIO interrupt cells for dra7, and few
other minor fixes.

* tag 'omap-for-v3.17/fixes-against-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: omap54xx-clocks: Fix the l3 and l4 clock rates
  ARM: OMAP2+: hwmod: Rearm wake-up interrupts for DT when MUSB is idled
  ARM: dts: Enable UART wake-up events for beagleboard
  ARM: dts: Remove twl6030 clk32g "regulator"
  ARM: OMAP2+: omap_device: remove warning that clk alias already exists
  ARM: OMAP: fix %d confusingly prefixed with 0x in format string
  ARM: dts: DRA7: fix interrupt-cells for GPIO
  mtd: nand: omap: Fix 1-bit Hamming code scheme, omap_calculate_ecc()
  ARM: dts: omap3430-sdp: Revert to using software ECC for NAND
  ARM: OMAP2+: GPMC: Support Software ECC scheme via DT
  mtd: nand: omap: Revert to using software ECC by default
2014-08-27 15:08:28 -07:00
Juri Lelli eba1c71819 ARM: 8130/1: cpuidle/cpuidle-big_little: fix reading cpu id part number
Commit af040ffc9b ("ARM: make it easier to check the CPU part number
correctly") changed ARM_CPU_PART_X masks, and the way they are returned and
checked against. Usage of read_cpuid_part_number() is now deprecated, and
calling places updated accordingly. This actually broke cpuidle-big_little
initialization, as bl_idle_driver_init() performs a check using an hardcoded
mask on cpu_id.

Create an interface to perform the check (that is now even easier to read).
Define also a proper mask (ARM_CPU_PART_MASK) that makes this kind of checks
cleaner and helps preventing bugs in the future. Update usage accordingly.

Signed-off-by: Juri Lelli <juri.lelli@arm.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-27 15:40:45 +01:00
Mark Rutland 2c32c65e37 ARM: 8129/1: errata: work around Cortex-A15 erratum 830321 using dummy strex
On revisions of Cortex-A15 prior to r3p3, a CLREX instruction at PL1 may
falsely trigger a watchpoint exception, leading to potential data aborts
during exception return and/or livelock.

This patch resolves the issue in the following ways:

  - Replacing our uses of CLREX with a dummy STREX sequence instead (as
    we did for v6 CPUs).

  - Removing the clrex code from v7_exit_coherency_flush and derivatives,
    since this only exists as a minor performance improvement when
    non-cached exclusives are in use (Linux doesn't use these).

Benchmarking on a variety of ARM cores revealed no measurable
performance difference with this change applied, so the change is
performed unconditionally and no new Kconfig entry is added.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-27 15:40:13 +01:00
Mark Rutland 8586831317 ARM: 8128/1: abort: don't clear the exclusive monitors
The ARMv6 and ARMv7 early abort handlers clear the exclusive monitors
upon entry to the kernel, but this is redundant:

  - We clear the monitors on every exception return since commit
    200b812d00 ("Clear the exclusive monitor when returning from an
    exception"), so this is not necessary to ensure the monitors are
    cleared before returning from a fault handler.

  - Any dummy STREX will target a temporary scratch area in memory, and
    may succeed or fail without corrupting useful data. Its status value
    will not be used.

  - Any other STREX in the kernel must be preceded by an LDREX, which
    will initialise the monitors consistently and will not depend on the
    earlier state of the monitors.

Therefore we have no reason to care about the initial state of the
exclusive monitors when a data abort is taken, and clearing the monitors
prior to exception return (as we already do) is sufficient.

This patch removes the redundant clearing of the exclusive monitors from
the early abort handlers.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-27 15:40:12 +01:00
Andrey Ryabinin 55f0fb6adb ARM: 8127/1: module: add support for R_ARM_TARGET1 relocations
Kernel module build with GCOV profiling fails to load with the
following error:

 $ insmod test_module.ko
   test_module: unknown relocation: 38
   insmod: can't insert 'test_module.ko': invalid module format

This happens because constructor pointers in the .init_array section
have not supported R_ARM_TARGET1 relocation type.

Documentation (ELF for the ARM Architecture) says:
    "The relocation must be processed either in the same way as R_ARM_REL32 or
     as R_ARM_ABS32: a virtual platform must specify which method is used."

Since kernel expects to see absolute addresses in .init_array R_ARM_TARGET1
relocation type should be treated the same way as R_ARM_ABS32.

Signed-off-by: Andrey Ryabinin <a.ryabinin@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-08-27 15:40:11 +01:00
Rabeeh Khoury bf8147208e ARM: dts: microsom-ar8035: MDIO pad must be set open drain
This patch is important for the MicroSOM implementation due to the
following details -

1. VIH of the Atheros phy is 1.7V.
2. NVCC_ENET which is the power domain of the MDIO pad is driven by the
   PHY's LDO (i.e. either 1.8v or 2.5v).
3. The MicroSOM implements an onbouard 1.6kohm pull up to 3.3v (R3000).

In the case the PHY's LDO was 1.8v then there would be only a 100mV
margin for the signal to be acknowledged as high (1.8v-1.7v).
Due to that setting the pad as an open drain will let the 1.6kohm pull
that signal high to 3.3 that assures enough margins to the PHY to be
acked as '1' logic.

Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-08-27 13:32:26 +08:00