The structures are used as place holders, so they are modified at run-time.
Obviously they may not be constants.
BUG: unable to handle page fault for address: d0643220
...
CPU: 0 PID: 110 Comm: modprobe Not tainted 5.11.0+ #1
Hardware name: Intel Corp. QUARK/GalileoGen2, BIOS 0x01000200 01/01/2014
EIP: intel_quark_mfd_probe+0x93/0x1c0 [intel_quark_i2c_gpio]
This partially reverts the commit c4a164f415.
While at it, add a comment to avoid similar changes in the future.
Fixes: c4a164f415 ("mfd: Constify static struct resources")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Tested-by: Tong Zhang <ztong0001@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Drop support for depercated platforms using SFI, drop the entire
support for SFI that has been long deprecated too and make some
janitorial changes on top of that (Andy Shevchenko).
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Merge tag 'sfi-removal-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull Simple Firmware Interface (SFI) support removal from Rafael Wysocki:
"Drop support for depercated platforms using SFI, drop the entire
support for SFI that has been long deprecated too and make some
janitorial changes on top of that (Andy Shevchenko)"
* tag 'sfi-removal-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/platform/intel-mid: Update Copyright year and drop file names
x86/platform/intel-mid: Remove unused header inclusion in intel-mid.h
x86/platform/intel-mid: Drop unused __intel_mid_cpu_chip and Co.
x86/platform/intel-mid: Get rid of intel_scu_ipc_legacy.h
x86/PCI: Describe @reg for type1_access_ok()
x86/PCI: Get rid of custom x86 model comparison
sfi: Remove framework for deprecated firmware
cpufreq: sfi-cpufreq: Remove driver for deprecated firmware
media: atomisp: Remove unused header
mfd: intel_msic: Remove driver for deprecated platform
x86/apb_timer: Remove driver for deprecated platform
x86/platform/intel-mid: Remove unused leftovers (vRTC)
x86/platform/intel-mid: Remove unused leftovers (msic)
x86/platform/intel-mid: Remove unused leftovers (msic_thermal)
x86/platform/intel-mid: Remove unused leftovers (msic_power_btn)
x86/platform/intel-mid: Remove unused leftovers (msic_gpio)
x86/platform/intel-mid: Remove unused leftovers (msic_battery)
x86/platform/intel-mid: Remove unused leftovers (msic_ocd)
x86/platform/intel-mid: Remove unused leftovers (msic_audio)
platform/x86: intel_scu_wdt: Drop mistakenly added const
- Standardise MFD_CELL_* helpers
- New Drivers
- Add support for Acer Iconia Tab A500 Embedded Controller
- New Device Support
- Add support for ROHM BD9574MWF to BD9571MWV
- Add support for Intel Alder Lake PCH-P PCI to LPSS
- Add support for Intel Alder Lake PCH-S PCI to LPSS
- New Functionality
- Support ACPI enumeration; arizona
- Fix-ups
- Managed resources; bd9571mwv
- DT additions/fix-ups; bd9571mwv, iqs62x, max8997, gateworks-gsc, ene-kb930
- Convert to SPDX; bd9571mw
- Fix return values/error handling; sunxi
- Provide SOFTDEP; arizona
- Make use of DIV_ROUND_UP; mcp-sa11x0
- Use generic APIs; arizona
- Add MAC address sysfs entries; intel-m10-bmc
- Trivial: Coding-style fix-ups; iqs62x
- Trivial: Remove superflouous code; iqs62x
- Clear-up naming conventions; iqs62x
- Bug Fixes
- Fix 'pointer from integer' error; altera-sysmgr
- Convert SGI_MFD_IOC3 from tristate to bool; Kconfig
- Fix interrupt handling; gateworks-gsc
- Extend required delay; iqs62x
- Do not use I2C polling during calibration; iqs62x
- Do no adjust clock frequency during calibration; iqs62x
- Fix use-after-free; wm831x-auxad
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Merge tag 'mfd-next-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks:
- Standardise MFD_CELL_* helpers
New Drivers:
- Add support for Acer Iconia Tab A500 Embedded Controller
New Device Support:
- Add support for ROHM BD9574MWF to BD9571MWV
- Add support for Intel Alder Lake PCH-P PCI to LPSS
- Add support for Intel Alder Lake PCH-S PCI to LPSS
New Functionality:
- Support ACPI enumeration; arizona
Fix-ups:
- Managed resources; bd9571mwv
- DT additions/fix-ups; bd9571mwv, iqs62x, max8997, gateworks-gsc, ene-kb930
- Convert to SPDX; bd9571mw
- Fix return values/error handling; sunxi
- Provide SOFTDEP; arizona
- Make use of DIV_ROUND_UP; mcp-sa11x0
- Use generic APIs; arizona
- Add MAC address sysfs entries; intel-m10-bmc
- Trivial: Coding-style fix-ups; iqs62x
- Trivial: Remove superflouous code; iqs62x
- Clear-up naming conventions; iqs62x
Bug Fixes:
- Fix 'pointer from integer' error; altera-sysmgr
- Convert SGI_MFD_IOC3 from tristate to bool; Kconfig
- Fix interrupt handling; gateworks-gsc
- Extend required delay; iqs62x
- Do not use I2C polling during calibration; iqs62x
- Do no adjust clock frequency during calibration; iqs62x
- Fix use-after-free; wm831x-auxad"
* tag 'mfd-next-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (32 commits)
mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
mfd: iqs62x: Do not change clock frequency during ATI
mfd: iqs62x: Do not poll during ATI
mfd: iqs62x: Increase interrupt handler return delay
mfd: iqs62x: Rename regmap_config struct
mfd: iqs62x: Remove unused bit mask
mfd: iqs62x: Remove superfluous whitespace above fallthroughs
mfd: intel-lpss: Add Intel Alder Lake PCH-S PCI IDs
mfd: intel-m10-bmc: Expose MAC address and count
mfd: Add driver for Embedded Controller found on Acer Iconia Tab A500
dt-bindings: mfd: Add ENE KB930 Embedded Controller binding
dt-bindings: mfd: gateworks-gsc: Add fan-tach mode
mfd: intel-lpss: Add Intel Alder Lake PCH-P PCI IDs
mfd: gateworks-gsc: Fix interrupt type
mfd: Standardise MFD_CELL_* helper names
mfd: mcp-sa11x0: Use DIV_ROUND_UP to calculate rw_timeout
mfd: max8997: Add of_compatible to Extcon and Charger mfd_cell
dt-bindings: mfd: Correct the node name of the panel LED
mfd: sgi-ioc3: Turn Kconfig option into a bool
mfd: altera-sysmgr: Fix physical address storing more
...
Quite an active release for driver specific updates but very little
going on at the subsystem level this time for the regulator API.
- Overhaul of the Qualcomm LABIBB driver.
- Allow use of regulator_sync_voltage() on coupled regulators.
- Support for Action ATC260x, Mediatek DVSRC and MT6315, Qualcomm
PCM8180/c and PM8009-1 and Richtek RT4831
- Removal of the AB3100 driver.
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Merge tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Quite an active release for driver specific updates but very little
going on at the subsystem level this time for the regulator API.
Summary:
- Overhaul of the Qualcomm LABIBB driver.
- Allow use of regulator_sync_voltage() on coupled regulators.
- Support for Action ATC260x, Mediatek DVSRC and MT6315, Qualcomm
PCM8180/c and PM8009-1 and Richtek RT4831
- Removal of the AB3100 driver"
* tag 'regulator-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (49 commits)
regulator: bd718x7, bd71828, Fix dvs voltage levels
regulator: pca9450: Add sd-vsel GPIO
regulator: pca9450: Enable system reset on WDOG_B assertion
regulator: pca9450: Add SD_VSEL GPIO for LDO5
regulator: qcom-rpmh: fix pm8009 ldo7
regulator: mt6315: Add support for MT6315 regulator
regulator: document binding for MT6315 regulator
regulator: dt-bindings: Document charger-supply for max8997
regulator: qcom-labibb: Use disable_irq_nosync from isr
regulator: pf8x00: Fix typo for PF8200 chip name
regulator: pf8x00: set ramp_delay for bucks
regulator: core: Avoid debugfs: Directory ... already present! error
regulator: pf8x00: Add suspend support
regulator: Make regulator_sync_voltage() usable by coupled regulators
regulator: s5m8767: Drop regulators OF node reference
regulator: qcom-rpmh: Add pmc8180 and pmc8180c
regulator: qcom-rpmh: Add pmc8180 and pmc8180c
regulator: s5m8767: Fix reference count leak
regulator: remove ab3100 driver
regulator: axp20x: Fix reference cout leak
...
A relatively calm release at this time, and no massive code changes
are found in the stats, while a wide range of code refactoring and
cleanup have been done.
Note that this update includes the tree-wide trivial changes for
dropping the return value from ISA remove callbacks, too.
Below lists up some highlight:
* ALSA Core:
- Support for the software jack injection via debugfs
- Fixes for sync_stop PCM operations
* HD-audio and USB-audio:
- A few usual HD-audio device quirks
- Updates for Tegra HD-audio
- More quirks for Pioneer and other USB-audio devices
- Stricter state checks at USB-audio disconnection
* ASoC:
- Continued code refactoring, cleanup and fixes in ASoC core API
- A KUnit testsuite for the topology code
- Lots of ASoC Intel driver Realtek codec updates, quirk additions and
fixes
- Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured
nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro
- Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers
* Others:
- Drop return value from ISA driver remove callback
- Cleanup with DIV_ROUND_UP() macro
- FireWire updates, HDSP output loopback support
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Merge tag 'sound-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"A relatively calm release at this time, and no massive code changes
are found in the stats, while a wide range of code refactoring and
cleanup have been done.
Note that this update includes the tree-wide trivial changes for
dropping the return value from ISA remove callbacks, too.
Below lists up some highlight:
ALSA Core:
- Support for the software jack injection via debugfs
- Fixes for sync_stop PCM operations
HD-audio and USB-audio:
- A few usual HD-audio device quirks
- Updates for Tegra HD-audio
- More quirks for Pioneer and other USB-audio devices
- Stricter state checks at USB-audio disconnection
ASoC:
- Continued code refactoring, cleanup and fixes in ASoC core API
- A KUnit testsuite for the topology code
- Lots of ASoC Intel driver Realtek codec updates, quirk additions
and fixes
- Support for Ingenic JZ4760(B), Intel AlderLake-P, DT configured
nVidia cards, Qualcomm lpass-rx-macro and lpass-tx-macro
- Removal of obsolete SIRF prima/atlas, Txx9 and ZTE zx drivers
Others:
- Drop return value from ISA driver remove callback
- Cleanup with DIV_ROUND_UP() macro
- FireWire updates, HDSP output loopback support"
* tag 'sound-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (322 commits)
ALSA: hda: intel-dsp-config: add Alder Lake support
ASoC: soc-pcm: fix hw param limits calculation for multi-DAI
ASoC: Intel: bytcr_rt5640: Add quirk for the Acer One S1002 tablet
ASoC: Intel: bytcr_rt5651: Add quirk for the Jumper EZpad 7 tablet
ASoC: Intel: bytcr_rt5640: Add quirk for the Voyo Winpad A15 tablet
ASoC: Intel: bytcr_rt5640: Add quirk for the Estar Beauty HD MID 7316R tablet
ASoC: soc-pcm: fix hwparams min/max init for dpcm
ALSA: hda/realtek: Quirk for HP Spectre x360 14 amp setup
ALSA: usb-audio: Add implicit fb quirk for BOSS GP-10
ALSA: hda: Add another CometLake-H PCI ID
ASoC: soc-pcm: add soc_pcm_hw_update_format()
ASoC: soc-pcm: add soc_pcm_hw_update_chan()
ASoC: soc-pcm: add soc_pcm_hw_update_rate()
ASoC: wm_adsp: Remove unused control callback structure
ASoC: SOF: relax ABI checks and avoid unnecessary warnings
ASoC: codecs: lpass-tx-macro: add dapm widgets and route
ASoC: codecs: lpass-tx-macro: add support for lpass tx macro
ASoC: qcom: dt-bindings: add bindings for lpass tx macro codec
ASoC: codecs: lpass-rx-macro: add iir widgets
ASoC: codecs: lpass-rx-macro: add dapm widgets and route
...
Intel Moorestown and Medfield are quite old Intel Atom based
32-bit platforms, which were in limited use in some Android phones,
tablets and consumer electronics more than eight years ago.
There are no bugs or problems ever reported outside from Intel
for breaking any of that platforms for years. It seems no real
users exists who run more or less fresh kernel on it. Commit
05f4434bc1 ("ASoC: Intel: remove mfld_machine") is also in align
with this theory.
Due to above and to reduce a burden of supporting outdated drivers,
remove the support for outdated platforms completely.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The "req" struct is always added to the "wm831x->auxadc_pending" list,
but it's only removed from the list on the success path. If a failure
occurs then the "req" struct is freed but it's still on the list,
leading to a use after free.
Fixes: 78bb3688ea ("mfd: Support multiple active WM831x AUXADC conversions")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
After a reset event, the device automatically triggers ATI at the
default core clock frequency (16 MHz). Soon afterward, the driver
loads firmware which may attempt to lower the frequency.
If this initial ATI cycle is still in progress when the frequency
is changed, however, the device incorrectly reports channels 0, 1
and 2 to be in a state of touch once ATI finally completes.
To solve this problem, wait until ATI is complete before lowering
the frequency. Because this particular ATI cycle occurs following
a reset event, its duration is predictable and a simple delay can
suffice.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
After loading firmware, the driver triggers ATI (calibration) with
the newly loaded register configuration in place. Next, the driver
polls a register field to ensure ATI completed in a timely fashion
and that the device is ready to sense.
However, communicating with the device over I2C while ATI is under-
way may induce noise in the device and cause ATI to fail. As such,
the vendor recommends not to poll the device during ATI.
To solve this problem, let the device naturally signal to the host
that ATI is complete by way of an interrupt. A completion prevents
the sub-devices from being registered until this happens.
The former logic that scaled ATI timeout and filter settling delay
is not carried forward with the new implementation, as it produces
overly conservative delays at lower clock rates. Instead, a single
pair of delays that covers all cases is used.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The time the device takes to deassert its RDY output following an
I2C stop condition scales with the core clock frequency.
To prevent level-triggered interrupts from being reasserted after
the interrupt handler returns, increase the time before returning
to account for the worst-case delay (~90 us) plus margin.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The regmap member of the driver's private data is called 'regmap',
but the regmap_config struct is called 'iqs62x_map_config'. Rename
the latter to 'iqs62x_regmap_config' for consistency.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The register write that performed a mandatory soft reset during
probe was removed during development of the driver, however the
IQS62X_SYS_SETTINGS_SOFT_RESET bit mask was left behind. Remove
it to keep stray macros out of the driver.
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Previously, all instances of the /* fall through */ comment were
preceded by a newline to improve readability.
Now that /* fall through */ comments have been replaced with the
fallthrough pseudo-keyword, the leftover whitespace looks out of
place and can simply be removed.
Fixes: df561f6688 ("treewide: Use fallthrough pseudo-keyword")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add Intel Alder Lake LPSS PCI IDs.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Create two sysfs entries for exposing the MAC address and count
from the MAX10 BMC register space. The MAC address is the first
in a sequential block of MAC addresses reserved for the FPGA card.
The MAC count is the number of MAC addresses in the reserved block.
Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Signed-off-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acer Iconia Tab A500 is an Android tablet device, it has ENE KB930
Embedded Controller which provides battery-gauge, LED, GPIO and some
other functions. The EC uses firmware that is specifically customized
for Acer A500. This patch adds MFD driver for the Embedded Controller
which allows to power-off / reboot the A500 device, it also provides
a common register read/write API that will be used by the sub-devices.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The Gateworks System Controller has an active-low interrupt.
Fix the interrupt request type.
Cc: <stable@vger.kernel.org>
Fixes: d85234994b ("mfd: Add Gateworks System Controller core driver")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Start all helpers with "MFD_CELL_".
Cc: Gene Chen <gene_chen@richtek.com>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add of_compatible ("maxim,max8997-muic") to the mfd_cell to have a
of_node set in the extcon driver.
Add of_compatible ("maxim,max8997-battery") to the mfd_cell to configure
the charger driver.
Signed-off-by: Timon Baetz <timon.baetz@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Module builds of ioc3 fail with following errors:
ERROR: "spurious_interrupt" [drivers/mfd/ioc3.ko] undefined!
ERROR: "pci_find_host_bridge" [drivers/mfd/ioc3.ko] undefined!
Exporting pci_find_host_bridge got rejected by maintainer, so easiest
fix is to disable module building, which even makes sense since both
SGI Origin and Octane always contain at least one IOC3 chip.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
A recent fix improved the way the resource gets passed to
the low-level accessors, but left one warning that appears
in configurations with a resource_size_t that is wider than
a pointer:
In file included from drivers/mfd/altera-sysmgr.c:19:
drivers/mfd/altera-sysmgr.c: In function 'sysmgr_probe':
drivers/mfd/altera-sysmgr.c:148:40: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
148 | regmap = devm_regmap_init(dev, NULL, (void *)res->start,
| ^
include/linux/regmap.h:646:6: note: in definition of macro '__regmap_lockdep_wrapper'
646 | fn(__VA_ARGS__, &_key, \
| ^~~~~~~~~~~
drivers/mfd/altera-sysmgr.c:148:12: note: in expansion of macro 'devm_regmap_init'
148 | regmap = devm_regmap_init(dev, NULL, (void *)res->start,
| ^~~~~~~~~~~~~~~~
I had tried a different approach that would store the address
in the private data as a phys_addr_t, but the easiest solution
now seems to be to add a double cast to shut up the warning.
As the address is passed to an inline assembly, it is guaranteed
to not be wider than a register anyway.
Fixes: d9ca7801b6 ("mfd: altera-sysmgr: Fix physical address storing hacks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The Intel Bay Trail (x86/ACPI) based Lenovo Yoga Tablet 2 series use
a WM5102 codec connected over SPI.
Add support for ACPI enumeration to arizona-spi so that arizona-spi can
bind to the codec on these tablets.
This is loosely based on an earlier attempt (for Android-x86) at this by
Christian Hartmann, combined with insights in things like the speaker GPIO
from the android-x86 android port for the Lenovo Yoga Tablet 2 1051F/L [1].
[1] https://github.com/Kitsune2222/Android_Yoga_Tablet_2-1051F_Kernel
Cc: Christian Hartmann <cornogle@googlemail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Replace the custom arizona_of_get_type() function with the generic
device_get_match_data() helper. Besides being a nice cleanup this
also makes it easier to add support for binding to ACPI enumerated
devices.
While at it also fix a possible NULL pointer deref of the id
argument to the probe functions (this could happen on e.g. manual
driver binding through sysfs).
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The (shared) probing code of the arizona-i2c and arizona-spi modules
takes the following steps during init:
1. Call mfd_add_devices() for a set of early child-devices, this
includes the arizona_ldo1 device which provides one of the
core-regulators.
2. Bulk enable the core-regulators.
3. Read the device id.
4. Call mfd_add_devices() for the other child-devices.
This sequence depends on 1. leading to not only the child-device
being created, but also the driver for the child-device binding
to it and registering its regulator.
This requires the arizona_ldo1 driver to be loaded before the
shared probing code runs. Add a softdep for this to both modules to
ensure that this requirement is met.
Note this mirrors the existing MODULE_SOFTDEP("pre: wm8994_regulator")
in the wm8994 code, which has a similar init sequence.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver core ignores the return value of struct device_driver::remove
because there is only little that can be done. To simplify the quest to
make this function return void, let struct sunxi_rsb_driver::remove
return void, too. All users already unconditionally return 0, this
commit makes this obvious and ensures future users don't behave
differently. To simplify even further, make axp20x_device_remove()
return void instead of returning 0 unconditionally, too.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The new PMIC BD9574MWF inherits features from BD9571MWV.
Add the support of new PMIC to existing bd9571mwv driver.
Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com>
Co-developed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Since the driver supports BD9571MWV PMIC only, this patch makes
the functions and data structure become more generic so that
it can support other PMIC variants as well. Also remove printing
part name which Lee Jones suggested.
Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@renesas.com>
Co-developed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Use devm_regmap_add_irq_chip() to simplify the code.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Use the SPDX license identifier instead of a local description.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
To remove mfd devices when unload this driver, should use
devm_mfd_add_devices() instead.
Fixes: d3ea212720 ("mfd: Add ROHM BD9571MWV-M MFD PMIC driver")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The platform data header was only used to pass platform
data from board files. We now populate the regulators
exclusively from device tree, so the header contents can
be moved into the regulator drivers.
Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20201205004057.1712753-2-linus.walleij@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit c9a3c4e637 ("mfd: ab8500-debugfs: Remove extraneous curly
brace") removed a left-over curly brace that caused build failures, but
Joe Perches points out that the subsequent 'seq_putc()' should also be
removed, because the commit that caused all these problems already added
the final '\n' to the seq_printf() above it.
Reported-by: Joe Perches <joe@perches.com>
Fixes: 886c812165 ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc")
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Clang errors:
drivers/mfd/ab8500-debugfs.c:1526:2: error: non-void function does not return a value [-Werror,-Wreturn-type]
}
^
drivers/mfd/ab8500-debugfs.c:1528:2: error: expected identifier or '('
return 0;
^
drivers/mfd/ab8500-debugfs.c:1529:1: error: extraneous closing brace ('}')
}
^
3 errors generated.
The cleanup in ab8500_interrupts_show left a curly brace around, remove
it to fix the error.
Fixes: 886c812165 ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
accesses, inefficient and disfunctional code. The goal is to remove the
export of irq_to_desc() to prevent these things from creeping up again.
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Merge tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"This is the second attempt after the first one failed miserably and
got zapped to unblock the rest of the interrupt related patches.
A treewide cleanup of interrupt descriptor (ab)use with all sorts of
racy accesses, inefficient and disfunctional code. The goal is to
remove the export of irq_to_desc() to prevent these things from
creeping up again"
* tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
genirq: Restrict export of irq_to_desc()
xen/events: Implement irq distribution
xen/events: Reduce irq_info:: Spurious_cnt storage size
xen/events: Only force affinity mask for percpu interrupts
xen/events: Use immediate affinity setting
xen/events: Remove disfunct affinity spreading
xen/events: Remove unused bind_evtchn_to_irq_lateeoi()
net/mlx5: Use effective interrupt affinity
net/mlx5: Replace irq_to_desc() abuse
net/mlx4: Use effective interrupt affinity
net/mlx4: Replace irq_to_desc() abuse
PCI: mobiveil: Use irq_data_get_irq_chip_data()
PCI: xilinx-nwl: Use irq_data_get_irq_chip_data()
NTB/msi: Use irq_has_action()
mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc
pinctrl: nomadik: Use irq_has_action()
drm/i915/pmu: Replace open coded kstat_irqs() copy
drm/i915/lpe_audio: Remove pointless irq_to_desc() usage
s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt()
parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts()
...
Subsystem:
- Remove nvram ABI. There was no complaints about the deprecation for the last
3 years.
- Improve RTC device allocation and registration
- Now available for ARCH=um
Drivers:
- at91rm9200: correction and sam9x60 support
- ds1307: improve ACPI support
- mxc: now DT only
- pcf2127: watchdog support now needs the reset-source property
- pcf8523: set range
- rx6110: i2c support
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Merge tag 'rtc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- Remove nvram ABI. There was no complaints about the deprecation for
the last 3 years.
- Improve RTC device allocation and registration
- Now available for ARCH=um
Drivers:
- at91rm9200: correction and sam9x60 support
- ds1307: improve ACPI support
- mxc: now DT only
- pcf2127: watchdog support now needs the reset-source property
- pcf8523: set range
- rx6110: i2c support"
* tag 'rtc-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (43 commits)
rtc: pcf2127: only use watchdog when explicitly available
dt-bindings: rtc: add reset-source property
rtc: fix RTC removal
rtc: s3c: Remove dead code related to periodic tick handling
rtc: s3c: Disable all enable (RTC, tick) bits in the probe
rtc: ep93xx: Fix NULL pointer dereference in ep93xx_rtc_read_time
rtc: test: remove debug message
rtc: mxc{,_v2}: enable COMPILE_TEST
rtc: enable RTC framework on ARCH=um
rtc: pcf8523: use BIT
rtc: pcf8523: set range
rtc: pcf8523: switch to devm_rtc_allocate_device
rtc: destroy mutex when releasing the device
rtc: shrink devm_rtc_allocate_device()
rtc: rework rtc_register_device() resource management
rtc: nvmem: emit an error message when nvmem registration fails
rtc: add devm_ prefix to rtc_nvmem_register()
rtc: nvmem: remove nvram ABI
Documentation: list RTC devres helpers in devres.rst
rtc: omap: use devm_pinctrl_register()
...
First of all drivers have absolutely no business to dig into the internals
of an irq descriptor. That's core code and subject to change. All of this
information is readily available to /proc/interrupts in a safe and race
free way.
Remove the inspection code which is a blatant violation of subsystem
boundaries and racy against concurrent modifications of the interrupt
descriptor.
Print the irq line instead so the information can be looked up in a sane
way in /proc/interrupts.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20201210194044.157283633@linutronix.de
This update includes DMI IDs for the following Kontron modules and
systems:
COMe-bDV7, COMe-cDV7, COMe-m4AL, COMe-mCT10, SMARC-sXAL, SMARC-sXA4,
Qseven-Q7AL, mITX-APL, pITX-APL and KBox A-203
Furthermore the ACPI HID KEM0000 is added, as it is also reserved for
kempld devices.
Instead of also adding the newly supported devices to the Kconfig
description this patch removes the lengthy list. With future usage of
the ACPI HIDs it will not be necessary to explicitly add support for
each individual device to the driver and therefore the list would
become incomplete anyway.
Signed-off-by: Michael Brunner <michael.brunner@kontron.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver references of_device_id table via of_match_device() so it
will be unused for !CONFIG_OF builds:
drivers/mfd/twl6030-irq.c:359:34: warning: ‘twl6030_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match either via ACPI or OF. Its of_device_id table is
referenced via of_match_ptr() so it will be unused for !CONFIG_OF
builds:
drivers/mfd/axp20x-i2c.c:60:34: warning: ‘axp20x_i2c_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/wm8994-core.c:618:34: warning: ‘wm8994_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/sun4i-gpadc.c:79:34: warning: ‘sun4i_gpadc_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/max77686.c:148:34: warning: ‘max77686_pmic_dt_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/stmfx.c:542:34: warning: ‘stmfx_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/rt5033.c:116:34: warning: ‘rt5033_dt_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/mt6397-core.c:214:34: warning: ‘mt6397_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/max77650.c:215:34: warning: ‘max77650_of_match’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
The driver can match only via the DT table so the table should be always
used and the of_match_ptr does not have any sense (this also allows ACPI
matching via PRP0001, even though it is not relevant here). This fixes
compile warning (!CONFIG_OF on x86_64):
drivers/mfd/fsl-imx25-tsadc.c:190:34: warning: ‘mx25_tsadc_ids’ defined but not used [-Wunused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Andy Shevchenko