Commit Graph

4562 Commits

Author SHA1 Message Date
Yoshihiro Shimoda
c58ad0f2b0 mfd: bd9571mwv: Use devm_mfd_add_devices()
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>
2021-01-14 13:05:54 +00:00
Linus Torvalds
f838f8d2b6 mfd: ab8500-debugfs: Remove extraneous seq_putc
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>
2020-12-26 09:19:49 -08:00
Nathan Chancellor
c9a3c4e637 mfd: ab8500-debugfs: Remove extraneous curly brace
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>
2020-12-25 19:59:02 -08:00
Linus Torvalds
3913d00ac5 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.
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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()
  ...
2020-12-24 13:50:23 -08:00
Linus Torvalds
f4a2f7866f RTC for 5.11
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()
  ...
2020-12-20 10:12:06 -08:00
Thomas Gleixner
886c812165 mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc
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
2020-12-15 16:19:32 +01:00
Michael Brunner
0cd3aa9957 mfd: kempld-core: Add support for additional devices
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>
2020-12-02 12:53:27 +00:00
Krzysztof Kozlowski
e73fd3f265 mfd: twl6030: Mark of_device_id table as maybe unused
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>
2020-11-27 08:02:52 +00:00
Krzysztof Kozlowski
06b324fc85 mfd: axp20x: Skip of_device_id table when !CONFIG_OF
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>
2020-11-27 08:02:43 +00:00
Krzysztof Kozlowski
7b64f24595 mfd: wm8994: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:02:35 +00:00
Krzysztof Kozlowski
cc5b7ebe45 mfd: sun4i: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:02:27 +00:00
Krzysztof Kozlowski
608a475857 mfd: max77686: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:02:19 +00:00
Krzysztof Kozlowski
a06d0dc4fe mfd: stmfx: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:02:11 +00:00
Krzysztof Kozlowski
a232bcd201 mfd: rt5033: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:02:02 +00:00
Krzysztof Kozlowski
4fae301031 mfd: mt6397: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:01:54 +00:00
Krzysztof Kozlowski
4dfdc9a8f1 mfd: max77650: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:01:46 +00:00
Krzysztof Kozlowski
130e085a33 mfd: fsl-imx25: Drop of_match_ptr from of_device_id table
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>
2020-11-27 08:01:38 +00:00
Krzysztof Kozlowski
e9063fee2b mfd: ene-kb3930: Drop of_match_ptr from of_device_id table
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/ene-kb3930.c:194:34: warning: ‘kb3930_dt_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>
2020-11-27 08:01:28 +00:00
Krzysztof Kozlowski
98a6521c35 mfd: da9150: Drop of_match_ptr from of_device_id table
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/da9150-core.c:505:34: warning: ‘da9150_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>
2020-11-27 08:01:20 +00:00
Krzysztof Kozlowski
5f2bf43800 mfd: da9063: Drop of_match_ptr from of_device_id table
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/da9063-i2c.c:348:34: warning: ‘da9063_dt_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>
2020-11-27 08:01:12 +00:00
Krzysztof Kozlowski
b62a16a51a mfd: da9062: Drop of_match_ptr from of_device_id table
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/da9062-core.c:614:34: warning: ‘da9062_dt_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>
2020-11-27 08:01:04 +00:00
Krzysztof Kozlowski
62e7407349 mfd: da9055: Drop of_match_ptr from of_device_id table
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/da9055-i2c.c:66:34: warning: ‘da9055_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>
2020-11-27 08:00:56 +00:00
Krzysztof Kozlowski
b0ad7ebe30 mfd: bcm590xx: Drop of_match_ptr from of_device_id table
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/bcm590xx.c:95:34: warning: ‘bcm590xx_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>
2020-11-27 08:00:47 +00:00
Krzysztof Kozlowski
7a69a6f68d mfd: omap-usb: Depend on COMMON_CLK to fix compile tests
The MFD_OMAP_USB_HOST uses Common Clock Framework thus it cannot be
built on platforms without it (e.g. compile test on MIPS with LANTIQ):

    mips-linux-ld: drivers/mfd/omap-usb-host.o: in function `usbhs_omap_probe':
    omap-usb-host.c:(.text+0x940): undefined reference to `clk_set_parent'

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-27 07:54:36 +00:00
Michael Brunner
f31cc6afab mfd: kempld-core: Check for DMI definition before ACPI
Change the detection order to priorize DMI table entries over available
ACPI entries.

This makes it more easy for product developers to patch product specific
handling into the driver.
Furthermore it allows to simplify the implementation a bit and
especially to remove the need to force synchronous probing.

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>
2020-11-27 07:51:47 +00:00
Dmitry Osipenko
129989d5ca mfd: tps65910: Correct power-off programming sequence
Correct power-off programming sequence in order to fix shutting down
devices which are using TPS65910 PMIC.

In accordance to the TPS65910 datasheet, the PMIC's state-machine
transitions into the OFF state only when DEV_OFF bit of DEVCTRL_REG is
set. The ON / SLEEP states also should be cleared, otherwise PMIC won't
get into a proper state on shutdown. Devices like Nexus 7 tablet and Ouya
game console are shutting down properly now.

Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Zack Pearsall <zpearsall@yahoo.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-27 07:42:59 +00:00
Zou Wei
d12edf9661 mfd: altera-sysmgr: Use resource_size function on resource object
drivers/mfd/altera-sysmgr.c:155:36-39: WARNING: Suspicious code. resource_size is maybe missing with res

Generated by: scripts/coccinelle/api/resource_size.cocci

Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-27 07:40:35 +00:00
Bartosz Golaszewski
fdcfd85433 rtc: rework rtc_register_device() resource management
rtc_register_device() is a managed interface but it doesn't use devres
by itself - instead it marks an rtc_device as "registered" and the devres
callback for devm_rtc_allocate_device() takes care of resource release.

This doesn't correspond with the design behind devres where managed
structures should not be aware of being managed. The correct solution
here is to register a separate devres callback for unregistering the
device.

While at it: rename rtc_register_device() to devm_rtc_register_device()
and add it to the list of managed interfaces in devres.rst. This way we
can avoid any potential confusion of driver developers who may expect
there to exist a corresponding unregister function.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201109163409.24301-8-brgl@bgdev.pl
2020-11-19 12:50:12 +01:00
Tony Lindgren
14639a22de mfd: cpcap: Fix interrupt regression with regmap clear_ack
With commit 3a6f0fb7b8 ("regmap: irq: Add support to clear ack
registers"), the cpcap interrupts are no longer getting acked properly
leading to a very unresponsive device with CPUs fully loaded spinning
in the threaded IRQ handlers.

To me it looks like the clear_ack commit above actually fixed a long
standing bug in regmap_irq_thread() where we unconditionally acked the
interrupts earlier without considering ack_invert. And the issue with
cpcap started happening as we now also consider ack_invert.

Tim Harvey <tharvey@gateworks.com> tried to fix this issue earlier with
"[PATCH v2] regmap: irq: fix ack-invert", but the reading of the ack
register was considered unnecessary for just ack_invert, and we did not
have clear_ack available yet. As the cpcap irqs worked both with and
without ack_invert earlier because of the unconditional ack, the
problem remained hidden until now.

Also, looks like the earlier v3.0.8 based Motorola Android Linux kernel
does clear_ack style read-clear-write with "ireg_val & ~mreg_val" instead
of just ack_invert style write. So let's switch cpcap to use clear_ack
to fix the issue.

Fixes: 3a6f0fb7b8 ("regmap: irq: Add support to clear ack registers")
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Laxminath Kasam <lkasam@codeaurora.org>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Pavel Machek <pavel@ucw.cz>
Reviewed-By: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:28 +00:00
Amelie Delaunay
d75846ed08 mfd: stmfx: Fix dev_err_probe() call in stmfx_chip_init()
'ret' may be 0 so, dev_err_probe() should be called only when 'ret' is
an error code.

Fixes: 41c9c06c49 ("mfd: stmfx: Simplify with dev_err_probe()")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:28 +00:00
Geert Uytterhoeven
de1292817c mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE
Currently the Kontron sl28cpld Board Management Controller is found only
on Kontron boards equipped with a Freescale Layerscape SoC.  Hence add a
dependency on ARCH_LAYERSCAPE, to prevent asking the user about a driver
for this controller when configuring a kernel without Layerscape support.

Fixes: a538ad229b ("mfd: simple-mfd-i2c: Add sl28cpld support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Michael Walle <michael@walle.cc>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:23 +00:00
Jing Xiangfeng
9a46328470 mfd: htc-i2cpld: Add the missed i2c_put_adapter() in htcpld_register_chip_i2c()
htcpld_register_chip_i2c() misses to call i2c_put_adapter() in an error
path. Add the missed function call to fix it.

Fixes: 6048a3dd23 ("mfd: Add HTCPLD driver")
Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Codrin Ciubotariu
4c5840b909 mfd: at91-usart: Do not use compatible to register child devices
There are no separate serial/SPI devices under the at91-usart MFD, but
actually the MFD is used as a serial or a SPI device. There are no DT
sub-nodes for the MFD children, so we should use platform device API to
register the drivers.

Suggested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Charles Keepax
f594d01bb4 mfd: madera: Add special errata reset handling for cs47l15
An errata exists for cs47l15 where the reset must be handled
differently and removed before DCVDD is applied. A soft reset is used
for situations where a reset is required to reset state. This does
however, make this part unsuitable for DCVDD supplies with a rise time
greater than 2mS.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Charles Keepax
1cd7b935d2 mfd: madera: Add reset as part of resume
The DCVDD supply does not always power down when the CODEC enters
suspend, for example shared regulators or always-on regulators. In
these cases if a register is written back to the default value whilst
the CODEC is in suspend that register will retain the previous value.
As DCVDD never powered down, the register retains its old value and
as the cache sync only synchronises registers that differ from the
default the new value is never written out.

Ensure the registers are in the expected state after suspend by always
resetting the CODEC on resume. This also has the benefit of being
recommended by the datasheet for DCVDD supplies that take longer than
2mS to rise.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Lee Jones
4f2785939f mfd: tps65910: Fix a bunch of alignment issues reported-by Checkpatch
CHECK: Alignment should match open parenthesis
 #24: FILE: drivers/mfd/tps65910.c:296:
 +	ret = regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  						DEVCTRL_CK32K_CTRL_MASK);

 CHECK: Alignment should match open parenthesis
 #33: FILE: drivers/mfd/tps65910.c:318:
 +	ret = regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
  				DEVCTRL_DEV_SLP_MASK);

 CHECK: Alignment should match open parenthesis
 #42: FILE: drivers/mfd/tps65910.c:326:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #51: FILE: drivers/mfd/tps65910.c:336:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #60: FILE: drivers/mfd/tps65910.c:346:
 +		ret = regmap_set_bits(tps65910->regmap,
  				TPS65910_SLEEP_KEEP_RES_ON,

 CHECK: Alignment should match open parenthesis
 #69: FILE: drivers/mfd/tps65910.c:358:
 +	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  				DEVCTRL_DEV_SLP_MASK);

 CHECK: Alignment should match open parenthesis
 #78: FILE: drivers/mfd/tps65910.c:440:
 +	if (regmap_set_bits(tps65910->regmap, TPS65910_DEVCTRL,
  			DEVCTRL_PWR_OFF_MASK) < 0)

 CHECK: Alignment should match open parenthesis
 #83: FILE: drivers/mfd/tps65910.c:444:
 +	regmap_clear_bits(tps65910->regmap, TPS65910_DEVCTRL,
  			DEVCTRL_DEV_ON_MASK);

Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Michał Mirosław
28faad777c mfd: tps65910: Clean up after switching to regmap
Remove wrappers around regmap calls to remove now-useless indirection.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Michał Mirosław
da7d203f46 mfd: tps65911-comparator: Use regmap accessors
Use regmap accessors directly for register manipulation - removing
one layer of abstraction.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
AngeloGioacchino Del Regno
a4b9be29f4 mfd: qcom-spmi-pmic: Add support for PM660/PM660L
Add the subtype and compatible strings for PM660 and PM660L,
found in various SoCs, including SDM630, SDM636, SDM660 and
SDA variants.

Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:22 +00:00
Rikard Falkeborn
c4a164f415 mfd: Constify static struct resources
Constify a number of static struct resource. The only usage of the
structs are to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
4bdcbbb9a3 mfd: sun4i-gpadc: Constify static struct resource
Constify adc_resources[]. The only usage is to assign its address to the
resources field of the mfd_cell struct. This allows the compiler to put
it in read-only memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
8d7b3a6dac mfd: stmpe: Constify static struct resource
Constify a couple of static struct resource. The only usage of the
structs is to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
5a1acf2b93 mfd: lp8788: Constify static struct resource
Constify a couple of static struct resource. The only usage of the
structs is to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
f977284ad2 mfd: wm8xxx-core: Constify static struct resource
Constify a number of static struct resource. The only usage of the
structs are to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
0aefed0eb8 mfd: tps65xxx: Constify static struct resource in OMAP2+ drivers
Constify a number of static struct resource. The only usage of the
structs are to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
bf4cceb6e0 mfd: intel: Constify static struct resource
Constify a number of static struct resource. The only usage of the
structs are to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Rikard Falkeborn
a0fa0abeb5 mfd: da9xxx-core: Constify static struct resource
Constify a number of static struct resource. The only usage of the
structs are to assign their address to the resources field in the
mfd_cell struct. This allows the compiler to put them in read-only
memory. Done with the help of Coccinelle.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:34:21 +00:00
Lee Jones
f8d86e2998 Merge branch 'ib-mfd-mediatek-5.11' into ibs-for-mfd-merged 2020-11-19 08:33:45 +00:00
Enric Balletbo i Serra
86b9d170da mfd: syscon: Add syscon_regmap_lookup_by_phandle_optional() function.
This adds syscon_regmap_lookup_by_phandle_optional() function to get an
optional regmap.

It behaves the same as syscon_regmap_lookup_by_phandle() except where
there is no regmap phandle. In this case, instead of returning -ENODEV,
the function returns NULL. This makes error checking simpler when the
regmap phandle is optional.

Suggested-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-19 08:30:11 +00:00
David E. Box
4f8217d5b0 mfd: Intel Platform Monitoring Technology support
Intel Platform Monitoring Technology (PMT) is an architecture for
enumerating and accessing hardware monitoring facilities. PMT supports
multiple types of monitoring capabilities. This driver creates platform
devices for each type so that they may be managed by capability specific
drivers (to be introduced). Capabilities are discovered using PCIe DVSEC
ids. Support is included for the 3 current capability types, Telemetry,
Watcher, and Crashlog. The features are available on new Intel platforms
starting from Tiger Lake for which support is added. This patch adds
support for Tiger Lake (TGL), Alder Lake (ADL), and Out-of-Band Management
Services Module (OOBMSM).

Also add a quirk mechanism for several early hardware differences and bugs.
For Tiger Lake and Alder Lake, do not support Watcher and Crashlog
capabilities since they will not be compatible with future product. Also,
fix use a quirk to fix the discovery table offset.

Co-developed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-11-04 11:13:47 +00:00