1
0
Fork 0
mirror of synced 2025-03-06 20:59:54 +01:00
Commit graph

4881 commits

Author SHA1 Message Date
David E. Box
a3c8f906ed platform/x86/intel: Move intel_pmt from MFD to Auxiliary Bus
Intel Platform Monitoring Technology (PMT) support is indicated by presence
of an Intel defined PCIe Designated Vendor Specific Extended Capabilities
(DVSEC) structure with a PMT specific ID. The current MFD implementation
creates child devices for each PMT feature, currently telemetry, watcher,
and crashlog. However DVSEC structures may also be used by Intel to
indicate support for other features. The Out Of Band Management Services
Module (OOBMSM) uses DVSEC to enumerate several features, including PMT.
In order to support them it is necessary to modify the intel_pmt driver to
handle the creation of the child devices more generically. To that end,
modify the driver to create child devices for any VSEC/DVSEC features on
supported devices (indicated by PCI ID).  Additionally, move the
implementation from MFD to the Auxiliary bus.  VSEC/DVSEC features are
really multifunctional PCI devices, not platform devices as MFD was
designed for. Auxiliary bus gives more flexibility by allowing the
definition of custom structures that can be shared between associated
auxiliary devices and the parent device. Also, rename the driver from
intel_pmt to intel_vsec to better reflect the purpose.

This series also removes the current runtime pm support which was not
complete to begin with. None of the current devices require runtime pm.
However the support will be replaced when a device is added that requires
it.

Reviewed-by: Mark Gross <markgross@kernel.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20211208015015.891275-4-david.e.box@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-12-22 13:56:19 +01:00
Mauro Carvalho Chehab
54d4c88b37 mfd: Kconfig: Change INTEL_SOC_PMIC_CHTDC_TI to bool
The INTEL_SOC_PMIC_CHTDC_TI should be initialized early, before
loading the fbcon driver, as otherwise the i915 driver will
fail to configure pwm:

[   13.674287] fb0: switching to inteldrmfb from EFI VGA
[   13.682380] Console: switching to colour dummy device 80x25
[   13.682468] i915 0000:00:02.0: vgaarb: deactivate vga console
[   13.682686] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   13.685773] i915 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem
[   13.686219] i915 0000:00:02.0: [drm] *ERROR* Failed to configure the pwm chip
[   13.699572] [drm] Initialized i915 1.6.0 20200313 for 0000:00:02.0 on minor 0
[   13.739044] fbcon: i915drmfb (fb0) is primary device
[   14.037792] intel_soc_pmic_exec_mipi_pmic_seq_element: No PMIC registered
...
[   24.621403] intel_pmic_install_opregion_handler: Ask to register OpRegion for bus ID=PMI2, HID=INT33F5
[   24.630540] intel_pmic_install_opregion_handler: OpRegion registered

(some extra debug printk's were added to the above)

As suggested by Hans, this patch also addresses an issue with
the dependencies, as, for this driver to be a bool, it also
need the I2C core and the I2C_DESIGNWARE driver to be builtin.

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/86f546b3233fd799b0c39b83afc521440ebfe004.1638192232.git.mchehab+huawei@kernel.org
2021-11-29 15:12:46 +00:00
Andrej Picej
5c6f0f4563 mfd: da9062: Support SMBus and I2C mode
Enable the I2C bus mode if I2C_FUNC_I2C is set. Based on da6093 commit:
"586478bfc9f7 mfd: da9063: Support SMBus and I2C mode"

Signed-off-by: Andrej Picej <andrej.picej@norik.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211124065119.2514872-1-andrej.picej@norik.com
2021-11-29 13:17:00 +00:00
Orlando Chamberlain
9651cf2cb1 mfd: intel-lpss-pci: Fix clock speed for 38a8 UART
This device is found in the MacBookPro16,2, and as the MacBookPro16,1 is
from the same generation of MacBooks and has a UART with bxt_uart_info,
it was incorrectly assumed that the MacBookPro16,2's UART would have the
same info.

This led to the wrong clock speed being used, and the Bluetooth
controller exposed by the UART receiving and sending random data, which
was incorrectly assumed to be an issue with the Bluetooth stuff, not an
error with the UART side of things.

Changing the info to spt_uart_info changes the clock speed and makes it
send and receive data correctly.

Fixes: ddb1ada416 ("mfd: intel-lpss: Add support for MacBookPro16,2 ICL-N UART")
Signed-off-by: Orlando Chamberlain <redecorating@protonmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211124091846.11114-1-redecorating@protonmail.com
2021-11-29 13:17:00 +00:00
Andy Shevchenko
c9e143084d mfd: intel-lpss: Fix too early PM enablement in the ACPI ->probe()
The runtime PM callback may be called as soon as the runtime PM facility
is enabled and activated. It means that ->suspend() may be called before
we finish probing the device in the ACPI case. Hence, NULL pointer
dereference:

  intel-lpss INT34BA:00: IRQ index 0 not found
  BUG: kernel NULL pointer dereference, address: 0000000000000030
  ...
  Workqueue: pm pm_runtime_work
  RIP: 0010:intel_lpss_suspend+0xb/0x40 [intel_lpss]

To fix this, first try to register the device and only after that enable
runtime PM facility.

Fixes: 4b45efe852 ("mfd: Add support for Intel Sunrisepoint LPSS devices")
Reported-by: Orlando Chamberlain <redecorating@protonmail.com>
Reported-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Aditya Garg <gargaditya08@live.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211101190008.86473-1-andriy.shevchenko@linux.intel.com
2021-11-29 13:17:00 +00:00
Oleksandr Suvorov
786c6f140b mfd: stmpe: Support disabling sub-functions
Add support of sub-functions disabling. It allows one to define
an stmpe sub-function device in devicetree, but keep it disabled.

Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211027082155.206449-1-francesco.dolcini@toradex.com
2021-11-29 13:17:00 +00:00
Claudiu Beznea
5d051cf94f mfd: atmel-flexcom: Use .resume_noirq
Flexcom IP embeds 3 other IPs: usart, i2c, spi and selects the operation
mode (usart, i2c, spi) via mode register (FLEX_MR). On i2c bus there might
be connected critical devices (like PMIC) which on suspend/resume should
be suspended/resumed at the end/beginning. i2c uses
.suspend_noirq/.resume_noirq for this kind of purposes. Align flexcom
to use .resume_noirq as it should be resumed before the embedded IPs.
Otherwise the embedded devices might behave badly.

Fixes: 7fdec11015 ("atmel_flexcom: Support resuming after a chip reset")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Tested-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211028135138.3481166-3-claudiu.beznea@microchip.com
2021-11-29 13:16:59 +00:00
Claudiu Beznea
8c0fad75dc mfd: atmel-flexcom: Remove #ifdef CONFIG_PM_SLEEP
Remove compilation flag and use __maybe_unused and pm_ptr instead.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211028135138.3481166-2-claudiu.beznea@microchip.com
2021-11-29 13:16:59 +00:00
Ed Schaller
8b2051a1de mfd: intel-lpss: Add Intel Lakefield PCH PCI IDs
Add new IDs of the Intel Lakefield chip to the list of supported
devices.

Signed-off-by: Ed Schaller <schallee@darkmist.net>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211123180114.GA4747@darkmist.net
2021-11-29 13:16:59 +00:00
Matti Vaittinen
306456c21c mfd: bd70528: Drop BD70528 support
The only known BD70528 use-cases are such that the PMIC is controlled
from separate MCU which is not running Linux. I am not aware of
any Linux driver users. Furthermore, it seems there is no demand for
this IC. Let's ease the maintenance burden and drop the driver. We can
always add it back if there is sudden need for it.

Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/cf7dfd98b3403ad363b2b48b57bdbfd57a6416cb.1637066805.git.matti.vaittinen@fi.rohmeurope.com
2021-11-29 12:04:27 +00:00
Linus Torvalds
d4efc0de00 chrome platform changes for 5.16
cros_ec_typec:
 * Clean up use of cros_ec_check_features
 
 cros_ec_*:
 * Rename and move cros_ec_pd_command to cros_ec_command, and make changes to
   cros_ec_typec and cros_ec_proto to use the new common command, reducing
   duplication.
 
 sensorhub:
 * simplify getting .driver_data in cros_ec_sensors_core and cros_ec_sensorhub
 
 misc:
 * Maintainership change. Enric Balletbo i Serra has moved on from Collabora,
   so removing him from chrome/platform maintainers. Thanks for all of your
   hard work maintaining this, Enric, and best of luck to you in your new role!
 * Add Prashant Malani as driver maintainer for cros_ec_typec.c and
   cros_usbpd_notify. He was already principal contributor of these drivers.
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQQCtZK6p/AktxXfkOlzbaomhzOwwgUCYYrwxQAKCRBzbaomhzOw
 wuTkAQCsc0psJQ+K6JVlBk16fX1kuucS1J7QiqtUaT4ZGCHrbQEApK2X+R9pXmmC
 I6RfApB0Z2AMUg2uEB4OSNLaoiZ5pQM=
 =SBds
 -----END PGP SIGNATURE-----

Merge tag 'tag-chrome-platform-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "cros_ec_typec:

   - Clean up use of cros_ec_check_features

  cros_ec_*:

   - Rename and move cros_ec_pd_command to cros_ec_command, and make
     changes to cros_ec_typec and cros_ec_proto to use the new common
     command, reducing duplication.

  sensorhub:

   - simplify getting .driver_data in cros_ec_sensors_core and
     cros_ec_sensorhub

  misc:

   - Maintainership change. Enric Balletbo i Serra has moved on from
     Collabora, so removing him from chrome/platform maintainers. Thanks
     for all of your hard work maintaining this, Enric, and best of luck
     to you in your new role!

   - Add Prashant Malani as driver maintainer for cros_ec_typec.c and
     cros_usbpd_notify. He was already principal contributor of these
     drivers"

* tag 'tag-chrome-platform-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec_proto: Use ec_command for check_features
  platform/chrome: cros_ec_proto: Use EC struct for features
  MAINTAINERS: Chrome: Drop Enric Balletbo i Serra
  platform/chrome: cros_ec_typec: Use cros_ec_command()
  platform/chrome: cros_ec_proto: Add version for ec_command
  platform/chrome: cros_ec_proto: Make data pointers void
  platform/chrome: cros_usbpd_notify: Move ec_command()
  platform/chrome: cros_usbpd_notify: Rename cros_ec_pd_command()
  platform/chrome: cros_ec: Fix spelling mistake "responsed" -> "response"
  platform/chrome: cros_ec_sensorhub: simplify getting .driver_data
  iio: common: cros_ec_sensors: simplify getting .driver_data
  platform/chrome: cros-ec-typec: Cleanup use of check_features
  platform/chrome: cros_ec_proto: Fix check_features ret val
  MAINTAINERS: Add Prashant's maintainership of cros_ec drivers
2021-11-10 11:36:43 -08:00
Linus Torvalds
89d714ab60 linux-watchdog 5.16-rc1 tag
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.14 (GNU/Linux)
 
 iEYEABECAAYFAmGKax0ACgkQ+iyteGJfRsomvgCgpAmE/d5d9mSpq0zGaLa9ocxt
 bfQAniIp5n+wklRuiqYRAyCBdNqbKhAI
 =DlM4
 -----END PGP SIGNATURE-----

Merge tag 'linux-watchdog-5.16-rc1' of git://www.linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - f71808e_wdt: convert to watchdog framework

 - db8500_wdt: Rename driver (was ux500_wdt.c)

 - sunxi: Add compatibles for R329 and D1

 - mtk: add disable_wdt_extrst support

 - several other small fixes and improvements

* tag 'linux-watchdog-5.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (30 commits)
  watchdog: db8500_wdt: Rename symbols
  watchdog: db8500_wdt: Rename driver
  watchdog: ux500_wdt: Drop platform data
  watchdog: bcm63xx_wdt: fix fallthrough warning
  watchdog: iTCO_wdt: No need to stop the timer in probe
  watchdog: s3c2410: describe driver in KConfig
  watchdog: sp5100_tco: Add support for get_timeleft
  watchdog: mtk: add disable_wdt_extrst support
  dt-bindings: watchdog: mtk-wdt: add disable_wdt_extrst support
  watchdog: rza_wdt: Use semicolons instead of commas
  watchdog: mlx-wdt: Use regmap_write_bits()
  watchdog: rti-wdt: Make use of the helper function devm_platform_ioremap_resource()
  watchdog: iTCO_wdt: Make use of the helper function devm_platform_ioremap_resource()
  watchdog: ar7_wdt: Make use of the helper function devm_platform_ioremap_resource_byname()
  watchdog: sunxi_wdt: Add support for D1
  dt-bindings: watchdog: sunxi: Add compatibles for D1
  ar7: fix kernel builds for compiler test
  dt-bindings: watchdog: sunxi: Add compatibles for R329
  watchdog: meson_gxbb_wdt: add timeout parameter
  watchdog: meson_gxbb_wdt: add nowayout parameter
  ...
2021-11-10 09:41:22 -08:00
Robert Marko
5dc6dafe62 mfd: simple-mfd-i2c: Select MFD_CORE to fix build error
MFD_SIMPLE_MFD_I2C should select the MFD_CORE to a prevent build error:

aarch64-linux-ld: drivers/mfd/simple-mfd-i2c.o: in function `simple_mfd_i2c_probe':
drivers/mfd/simple-mfd-i2c.c:55: undefined reference to `devm_mfd_add_devices'

Cc: <stable@vger.kernel.org>
Fixes: c753ea3178 ("mfd: simple-mfd-i2c: Add support for registering devices via MFD cells")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211102100420.112215-1-robert.marko@sartura.hr
2021-11-05 14:40:28 +00:00
Dmitry Osipenko
b20cd02f7f mfd: tps80031: Remove driver
Driver was upstreamed in 2013 and never got a user, remove it.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211021192258.21968-4-digetx@gmail.com
2021-11-05 14:40:28 +00:00
Maíra Canal
6a0ee2a61a mfd: wcd934x: Replace legacy gpio interface for gpiod
Considering the current transition of the GPIO subsystem, remove all
dependencies of the legacy GPIO interface (linux/gpio.h and linux
/of_gpio.h) and replace it with the descriptor-based GPIO approach.

Signed-off-by: Maíra Canal <maira.canal@usp.br>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/YXDEBCiSnXYRQPXt@fedora
2021-11-05 14:40:27 +00:00
Jack Andersen
313c84b5ae mfd: dln2: Add cell for initializing DLN2 ADC
This patch extends the DLN2 driver; adding cell for adc_dln2 module.

The original patch[1] fell through the cracks when the driver was added
so ADC has never actually been usable. That patch did not have ACPI
support which was added in v5.9, so the oldest supported version this
current patch can be backported to is 5.10.

[1] https://www.spinics.net/lists/linux-iio/msg33975.html

Cc: <stable@vger.kernel.org> # 5.10+
Signed-off-by: Jack Andersen <jackoalan@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211018112541.25466-1-noralf@tronnes.org
2021-11-05 14:40:27 +00:00
Bjorn Andersson
e7488f3e4e mfd: qcom-spmi-pmic: Add missing PMICs supported by socinfo
The Qualcomm socinfo driver has eight more PMICs described, add these to
the SPMI PMIC driver as well.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211017161218.2378176-4-bjorn.andersson@linaro.org
2021-11-05 14:40:27 +00:00
Bjorn Andersson
0e2a35ac05 mfd: qcom-spmi-pmic: Sort compatibles in the driver
Sort the compatibles in the driver, to make it easier to validate that
the DT binding and driver are in sync.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211017161218.2378176-2-bjorn.andersson@linaro.org
2021-11-05 14:40:27 +00:00
Qing Wang
6ae210f1b5 mfd: janz-cmoio: Replace snprintf in show functions with sysfs_emit
show() must not use snprintf() when formatting the value to be
returned to user space.

Fix the following coccicheck warning:
drivers/mfd/janz-cmodio.c:157: WARNING: use scnprintf or sprintf.

Use sysfs_emit instead of scnprintf or sprintf makes more sense.

Signed-off-by: Qing Wang <wangqing@vivo.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/1634280592-4722-1-git-send-email-wangqing@vivo.com
2021-11-05 14:40:27 +00:00
Arnd Bergmann
37f127cf81 mfd: altera-a10sr: Include linux/module.h
Without the header, the MODULE_DEVICE_TABLE() declaration fails:

drivers/mfd/altera-a10sr.c:153:1: error: data definition has no type or storage class [-Werror]
  153 | MODULE_DEVICE_TABLE(of, altr_a10sr_spi_of_match);

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211013144402.2292128-1-arnd@kernel.org
2021-11-05 14:40:26 +00:00
Uwe Kleine-König
ec14d90dee mfd: tps65912: Make tps65912_device_exit() return void
Up to now tps65912_device_exit() returns zero unconditionally. Make it
return void instead which makes it easier to see in the callers that
there is no error to handle.

Also the return value of i2c and spi remove callbacks is ignored anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211012153945.2651412-11-u.kleine-koenig@pengutronix.de
2021-11-05 14:40:26 +00:00
Uwe Kleine-König
356bbabade mfd: stmpe: Make stmpe_remove() return void
Up to now stmpe_remove() returns zero unconditionally. Make it return
void instead which makes it easier to see in the callers that there is
no error to handle.

Also the return value of i2c and spi remove callbacks is ignored anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211012153945.2651412-10-u.kleine-koenig@pengutronix.de
2021-11-05 14:40:26 +00:00
Uwe Kleine-König
c39cf60feb mfd: mc13xxx: Make mc13xxx_common_exit() return void
Up to now mc13xxx_common_exit() returns zero unconditionally. Make it
return void instead which makes it easier to see in the callers that
there is no error to handle.

Also the return value of i2c and spi remove callbacks is ignored anyway.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211012153945.2651412-9-u.kleine-koenig@pengutronix.de
2021-11-05 14:40:26 +00:00
Kai Song
fae2570d62 mfd: altera-sysmgr: Fix a mistake caused by resource_size conversion
The resource_size defines that:
	res->end - res->start + 1;
The origin original code is:
	sysmgr_config.max_register = res->end - res->start - 3;

So, the correct fix is that:
	sysmgr_config.max_register = resource_size(res) - 4;

Fixes: d12edf9661 ("mfd: altera-sysmgr: Use resource_size function on resource object")
Signed-off-by: Kai Song <songkai01@inspur.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211006141926.6120-1-songkai01@inspur.com
2021-11-05 14:40:26 +00:00
Charles Keepax
3f65555c41 mfd: arizona: Split of_match table into I2C and SPI versions
The Arizona driver has both some devices which only have an I2C
interface and some which only have a SPI interface. Currently both of
these share an of_match table, but this means inapproriate compatibles
are available for each interface. Tidy this up by creating a table for
each interface listing only the appropriate compatibles.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210928163035.23960-1-ckeepax@opensource.cirrus.com
2021-11-05 14:40:26 +00:00
Dmitry Baryshkov
d3546ccdce mfd: qcom-pm8xxx: switch away from using chained IRQ handlers
PM8xxx PMIC family uses GPIO as parent IRQ. Using it together with the
irq_set_chained_handler_and_data() results in warnings from the GPIOLIB
(see 461c1a7d47 ("gpiolib: override irq_enable/disable"))
as in this path the IRQ resources are not allocated (and thus the
corresponding GPIO is not marked as used for the IRQ. Use request_irq so
that the IRQ resources are proprely setup.

[ 0.803271] ------------[ cut here ]------------
[ 0.803338] WARNING: CPU: 3 PID: 1 at drivers/gpio/gpiolib.c:3207 gpiochip_enable_irq+0xa4/0xa8
[ 0.803470] Modules linked in:
[ 0.803542] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 5.14.0-rc6-next-20210820-postmarketos-qcom-apq8064+ #1
[ 0.803645] Hardware name: Generic DT based system
[ 0.803710] Backtrace:
[ 0.803777] [<c0e3493c>] (dump_backtrace) from [<c0e34d00>] (show_stack+0x20/0x24)
[ 0.803911] r7:00000c87 r6:c07062dc r5:60000093 r4:c11d0f54
[ 0.803980] [<c0e34ce0>] (show_stack) from [<c0e38314>] (dump_stack_lvl+0x48/0x54)
[ 0.804097] [<c0e382cc>] (dump_stack_lvl) from [<c0e38338>] (dump_stack+0x18/0x1c)
[ 0.804217] r5:00000009 r4:c11fe208
[ 0.804274] [<c0e38320>] (dump_stack) from [<c03219c8>] (__warn+0xfc/0x114)
[ 0.804387] [<c03218cc>] (__warn) from [<c0e35334>] (warn_slowpath_fmt+0x74/0xd0)
[ 0.804509] r7:c07062dc r6:00000c87 r5:c11fe208 r4:00000000
[ 0.804577] [<c0e352c4>] (warn_slowpath_fmt) from [<c07062dc>] (gpiochip_enable_irq+0xa4/0xa8)
[ 0.804716] r8:c27b6200 r7:c27aec00 r6:c27aec18 r5:cf77a448 r4:c02225f0
[ 0.804789] [<c0706238>] (gpiochip_enable_irq) from [<c0706348>] (gpiochip_irq_enable+0x28/0x38)
[ 0.804921] r5:cf77a448 r4:c27aec18
[ 0.804977] [<c0706320>] (gpiochip_irq_enable) from [<c03897a0>] (irq_enable+0x48/0x78)
[ 0.805111] r5:00000000 r4:c27aec00
[ 0.805167] [<c0389758>] (irq_enable) from [<c0389850>] (__irq_startup+0x80/0xbc)
[ 0.805286] r5:00000000 r4:c27aec00
[ 0.805343] [<c03897d0>] (__irq_startup) from [<c038996c>] (irq_startup+0xe0/0x18c)
[ 0.805468] r7:c27aec00 r6:00000001 r5:00000000 r4:c27aec00
[ 0.805535] [<c038988c>] (irq_startup) from [<c0389a54>] (irq_activate_and_startup+0x3c/0x74)
[ 0.805669] r7:c27aec00 r6:00000001 r5:c27aec00 r4:00000000
[ 0.805736] [<c0389a18>] (irq_activate_and_startup) from [<c0389b58>] (__irq_do_set_handler+0xcc/0x1c0)
[ 0.805875] r7:c27aec00 r6:c0383710 r5:c08a16b0 r4:00000001
[ 0.805943] [<c0389a8c>] (__irq_do_set_handler) from [<c0389d80>] (irq_set_chained_handler_and_data+0x60/0x98)
[ 0.806087] r7:c27b5c10 r6:c27aed40 r5:c08a16b0 r4:c27aec00
[ 0.806154] [<c0389d20>] (irq_set_chained_handler_and_data) from [<c08a1660>] (pm8xxx_probe+0x1fc/0x24c)
[ 0.806298] r6:0000003a r5:0000003a r4:c27b5c00
[ 0.806359] [<c08a1464>] (pm8xxx_probe) from [<c0871420>] (platform_probe+0x6c/0xc8)
[ 0.806495] r10:c2507080 r9:e8bea2cc r8:c165e0e0 r7:c165e0e0 r6:c15f08f8 r5:c27b5c10
[ 0.806582] r4:00000000
[ 0.806632] [<c08713b4>] (platform_probe) from [<c086e280>] (really_probe+0xe8/0x460)
[ 0.806769] r7:c165e0e0 r6:c15f08f8 r5:00000000 r4:c27b5c10
[ 0.806837] [<c086e198>] (really_probe) from [<c086e6a8>] (__driver_probe_device+0xb0/0x22c)
[ 0.806975] r7:c27b5c10 r6:cf70fba4 r5:c15f08f8 r4:c27b5c10
[ 0.807042] [<c086e5f8>] (__driver_probe_device) from [<c086e868>] (driver_probe_device+0x44/0xe0)
[ 0.807188] r9:e8bea2cc r8:00000000 r7:c27b5c10 r6:cf70fba4 r5:c16ae4b4 r4:c16ae4b0
[ 0.807271] [<c086e824>] (driver_probe_device) from [<c086ecd8>] (__device_attach_driver+0xb4/0x12c)
[ 0.807421] r9:e8bea2cc r8:c15eec08 r7:c27b5c10 r6:cf70fba4 r5:c15f08f8 r4:00000001
[ 0.807506] [<c086ec24>] (__device_attach_driver) from [<c086c06c>] (bus_for_each_drv+0x94/0xe4)
[ 0.807651] r7:c16ae484 r6:c086ec24 r5:cf70fba4 r4:00000000
[ 0.807718] [<c086bfd8>] (bus_for_each_drv) from [<c086e0e0>] (__device_attach+0x104/0x19c)
[ 0.807852] r6:00000001 r5:c27b5c54 r4:c27b5c10
[ 0.807913] [<c086dfdc>] (__device_attach) from [<c086eef4>] (device_initial_probe+0x1c/0x20)
[ 0.808050] r6:c27b5c10 r5:c15ef1b0 r4:c27b5c10
[ 0.808111] [<c086eed8>] (device_initial_probe) from [<c086d00c>] (bus_probe_device+0x94/0x9c)
[ 0.808240] [<c086cf78>] (bus_probe_device) from [<c086a60c>] (device_add+0x404/0x8f4)
[ 0.808370] r7:c16ae484 r6:c251ba10 r5:00000000 r4:c27b5c10
[ 0.808439] [<c086a208>] (device_add) from [<c0a82f50>] (of_device_add+0x44/0x4c)
[ 0.808581] r10:c144c854 r9:00000001 r8:e8bea314 r7:c251ba10 r6:00000000 r5:00000000
[ 0.808669] r4:c27b5c00
[ 0.808718] [<c0a82f0c>] (of_device_add) from [<c0a836cc>] (of_platform_device_create_pdata+0xa0/0xc8)
[ 0.808850] [<c0a8362c>] (of_platform_device_create_pdata) from [<c0a83908>] (of_platform_bus_create+0x1f0/0x514)
[ 0.809005] r9:00000001 r8:c251ba10 r7:00000000 r6:00000000 r5:00000000 r4:e8bea2b0
[ 0.809086] [<c0a83718>] (of_platform_bus_create) from [<c0a83e04>] (of_platform_populate+0x98/0x128)
[ 0.809233] r10:c144c854 r9:00000001 r8:c251ba10 r7:00000000 r6:00000000 r5:e8bea170
[ 0.809321] r4:e8bea2b0
[ 0.809371] [<c0a83d6c>] (of_platform_populate) from [<c0a83f20>] (devm_of_platform_populate+0x60/0xa8)
[ 0.809521] r9:0000011d r8:c165e0e0 r7:e8bea170 r6:c2c34f40 r5:c2cac140 r4:c251ba10
[ 0.809604] [<c0a83ec0>] (devm_of_platform_populate) from [<c08a212c>] (ssbi_probe+0x138/0x16c)
[ 0.809738] r6:c2c34f40 r5:c251ba10 r4:ff822700
[ 0.809800] [<c08a1ff4>] (ssbi_probe) from [<c0871420>] (platform_probe+0x6c/0xc8)
[ 0.809923] r7:c165e0e0 r6:c15f0a80 r5:c251ba10 r4:00000000
[ 0.809989] [<c08713b4>] (platform_probe) from [<c086e280>] (really_probe+0xe8/0x460)
[ 0.810120] r7:c165e0e0 r6:c15f0a80 r5:00000000 r4:c251ba10
[ 0.810187] [<c086e198>] (really_probe) from [<c086e6a8>] (__driver_probe_device+0xb0/0x22c)
[ 0.810325] r7:c251ba10 r6:c15f0a80 r5:c15f0a80 r4:c251ba10
[ 0.810393] [<c086e5f8>] (__driver_probe_device) from [<c086e868>] (driver_probe_device+0x44/0xe0)
[ 0.810539] r9:0000011d r8:00000000 r7:c251ba10 r6:c15f0a80 r5:c16ae4b4 r4:c16ae4b0
[ 0.810623] [<c086e824>] (driver_probe_device) from [<c086ee2c>] (__driver_attach+0xdc/0x188)
[ 0.810766] r9:0000011d r8:c144c834 r7:00000000 r6:c15f0a80 r5:c251ba10 r4:00000000
[ 0.810849] [<c086ed50>] (__driver_attach) from [<c086bf60>] (bus_for_each_dev+0x88/0xd4)
[ 0.810985] r7:00000000 r6:c086ed50 r5:c15f0a80 r4:00000000
[ 0.811052] [<c086bed8>] (bus_for_each_dev) from [<c086dad4>] (driver_attach+0x2c/0x30)
[ 0.811182] r6:c15ef1b0 r5:c2c34e80 r4:c15f0a80
[ 0.811243] [<c086daa8>] (driver_attach) from [<c086d2dc>] (bus_add_driver+0x180/0x21c)
[ 0.811364] [<c086d15c>] (bus_add_driver) from [<c086fa6c>] (driver_register+0x84/0x118)
[ 0.811492] r7:00000000 r6:ffffe000 r5:c1428210 r4:c15f0a80
[ 0.811558] [<c086f9e8>] (driver_register) from [<c0871174>] (__platform_driver_register+0x2c/0x34)
[ 0.811683] r5:c1428210 r4:c16524a0
[ 0.811739] [<c0871148>] (__platform_driver_register) from [<c1428234>] (ssbi_driver_init+0x24/0x28)
[ 0.811868] [<c1428210>] (ssbi_driver_init) from [<c0302394>] (do_one_initcall+0x68/0x2c8)
[ 0.811990] [<c030232c>] (do_one_initcall) from [<c140147c>] (kernel_init_freeable+0x1dc/0x23c)
[ 0.812135] r7:cf7b0400 r6:c130339c r5:00000007 r4:c147f6a0
[ 0.812204] [<c14012a0>] (kernel_init_freeable) from [<c0e40e60>] (kernel_init+0x20/0x138)
[ 0.812345] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0e40e40
[ 0.812433] r4:00000000
[ 0.812483] [<c0e40e40>] (kernel_init) from [<c0300150>] (ret_from_fork+0x14/0x24)
[ 0.812596] Exception stack(0xcf70ffb0 to 0xcf70fff8)
[ 0.812684] ffa0: 00000000 00000000 00000000 00000000
[ 0.812809] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 0.812923] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 0.813008] r5:c0e40e40 r4:00000000
[ 0.813075] ---[ end trace ad2443eee078d094 ]---

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: David Heidelberg <david@ixit.cz> # on Nexus 7 (deb)
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210925234333.2430755-1-dmitry.baryshkov@linaro.org
2021-11-05 14:40:25 +00:00
Mark Brown
c5c7f06771 mfd: sprd: Add SPI device ID table
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI device ID table.

Fixes: 96c8395e21 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924143347.14721-4-broonie@kernel.org
2021-11-05 14:40:25 +00:00
Mark Brown
d5fa8592b7 mfd: cpcap: Add SPI device ID table
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI device ID table.

Fixes: 96c8395e21 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924143347.14721-3-broonie@kernel.org
2021-11-05 14:40:25 +00:00
Mark Brown
4ea673e87e mfd: altr_a10sr: Add SPI device ID table
Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding a SPI device ID table.

Fixes: 96c8395e21 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924143347.14721-2-broonie@kernel.org
2021-11-05 14:40:25 +00:00
Krzysztof Kozlowski
7c0f35e7b4 mfd: exynos-lpass: Describe driver in KConfig
Describe better which driver applies to which SoC, to make configuring
kernel for Samsung SoC easier.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210924133332.112092-1-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:25 +00:00
Krzysztof Kozlowski
002be81140 mfd: core: Add missing of_node_put for loop iteration
Early exits from for_each_child_of_node() should decrement the
node reference counter.  Reported by Coccinelle:

  drivers/mfd/mfd-core.c:197:2-24: WARNING:
    Function "for_each_child_of_node" should have of_node_put() before goto around lines 209.

Fixes: c94bb233a9 ("mfd: Make MFD core code Device Tree and IRQ domain aware")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210528115126.18370-1-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:25 +00:00
Orlando Chamberlain
ddb1ada416 mfd: intel-lpss: Add support for MacBookPro16,2 ICL-N UART
Added 8086:38a8 to the intel_lpss_pci driver. It is an Intel Ice Lake
PCH-N UART controler present on the MacBookPro16,2.

Signed-off-by: Orlando Chamberlain <redecorating@protonmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211002111449.12674-1-redecorating@protonmail.com
2021-11-05 14:40:06 +00:00
Krzysztof Kozlowski
8163fbd971 mfd: max14577: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Maxim 14577/77836 datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

The interrupt line is shared between PMIC and charger driver, so using
level sensitive interrupt is here especially important to avoid races.
With an edge configuration in case if first PMIC signals interrupt
followed shortly after by the RTC, the interrupt might not be yet
cleared/acked thus the second one would not be noticed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-4-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:06 +00:00
Krzysztof Kozlowski
f5f082eb04 mfd: max77693: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Maxim 77693 datasheet describes the interrupt line as active low
with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

The interrupt line is shared between PMIC and RTC driver, so using level
sensitive interrupt is here especially important to avoid races.  With
an edge configuration in case if first PMIC signals interrupt followed
shortly after by the RTC, the interrupt might not be yet cleared/acked
thus the second one would not be noticed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-3-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:06 +00:00
Krzysztof Kozlowski
215e50b086 mfd: max77686: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Maxim 77686 datasheet describes the interrupt line as active low
with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

The interrupt line is shared between PMIC and RTC driver, so using level
sensitive interrupt is here especially important to avoid races.  With
an edge configuration in case if first PMIC signals interrupt followed
shortly after by the RTC, the interrupt might not be yet cleared/acked
thus the second one would not be noticed.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-2-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:06 +00:00
Krzysztof Kozlowski
6854a10526 mfd: sec-irq: Do not enforce (incorrect) interrupt trigger type
Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.

The Samsung PMIC drivers are used only on Devicetree boards.

Additionally, the PMIC datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.

Marek Szyprowski reports that together with DTS change (proper level in
DTS) it fixes RTC alarm failure that he observed from time to time on
TM2e board.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210602110445.33536-1-krzysztof.kozlowski@canonical.com
2021-11-05 14:40:06 +00:00
Krzysztof Kozlowski
f12ebfd31e mfd: cros_ec: Drop unneeded MODULE_ALIAS
The MODULE_DEVICE_TABLE already creates proper alias.  Having another
MODULE_ALIAS causes the alias to be duplicated:

  $ modinfo cros_ec_dev.ko

  alias:          platform:cros-ec-dev
  srcversion:     F84A69D2156719A4F717A76
  alias:          platform:cros-ec-dev

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Ramona Alexandra Nechita
23ee74df13 mfd: Kconfig: Fix typo in PMIC_ADP5520 from AD5520 to ADP5520
The description mentioned AD5520, which is a different device.
Fixed the typo.

Signed-off-by: Ramona Alexandra Nechita <ramona.nechita@analog.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Chunyan Zhang
fcd8d92f1d mfd: sprd: Add support for SC2730 PMIC
SC2730 is a PMIC SoC integrated in UMS512.

Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Carlos de Paula
c9a2038357 mfd: da9063: Add support for latest EA silicon revision
This update adds new regmap to support the latest EA silicon
which will be selected based on the chip and variant
information read from the device.

Signed-off-by: Carlos de Paula <me@carlosedp.com>
Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Ondrej Jirman
4d94b98f2e mfd: rk808: Add support for power off on RK817
RK817 has a power-off bit in SYS_CFG3. Add support for powering
off the PMIC.

Signed-off-by: Ondrej Jirman <megous@megous.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Prarit Bhargava
635a0535e2 mfd: intel_pmt: Only compile on x86
The intel_pmt driver shows up as a compile option for all arches but is
32-bit and 64-bit x86 specific.

Add a CONFIG dependency on X86 for intel_pmt.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:05 +00:00
Colin Ian King
ad70c03f21 mfd: ti_am335x_tscadc: Fix spelling mistake "atleast" -> "at least"
There is a spelling mistake in a dev_err message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-11-05 14:40:02 +00:00
Lee Jones
9ada96900a Merge branches 'ib-mfd-iio-touchscreen-clk-5.16', 'ib-mfd-misc-regulator-5.16' and 'tb-mfd-from-regulator-5.16' into ibs-for-mfd-merged 2021-11-05 14:37:56 +00:00
Linus Walleij
c738888032 watchdog: db8500_wdt: Rename symbols
For conistency and clarity, rename all symbols and strings from
ux500 to db8500 in the driver.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210922230947.1864357-3-linus.walleij@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-11-01 20:18:09 +01:00
Linus Walleij
74128d801b watchdog: ux500_wdt: Drop platform data
Drop the platform data passing from the PRCMU driver. This platform
data was part of the ambition to support more SoCs, which in turn
were never mass produced.

Only a name remains of the MFD cell so switch to MFD_CELL_NAME().

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210922230947.1864357-1-linus.walleij@linaro.org
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-11-01 20:18:08 +01:00
Prashant Malani
7ff22787ba
platform/chrome: cros_ec_proto: Use EC struct for features
The Chrome EC's features are returned through an
ec_response_get_features struct, but they are stored in an independent
array. Although the two are effectively the same at present (2 unsigned
32 bit ints), there is the possibility that they could go out of sync.
Avoid this by only using the EC struct to store the features.

Signed-off-by: Prashant Malani <pmalani@chromium.org>
Link: https://lore.kernel.org/r/20211004170716.86601-1-pmalani@chromium.org
Signed-off-by: Benson Leung <bleung@chromium.org>
2021-10-31 15:52:39 -07:00
Miquel Raynal
90fc6ff48b mfd: ti_am335x_tscadc: Support the correctly spelled DT property
There was in the past a typo in the coordinate readouts property. The
bindings have been updated, the touchscreen driver as well and now
supports both. However, the MFD driver that is in charge of verifying
the validity of the property only checks the bogus one. Add support for
the correctly spelled DT property.

Fixes: c9aeb249bf ("Input: ti_am335x_tsc - fix spelling mistake in TSC/ADC DT binding")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211015081506.933180-38-miquel.raynal@bootlin.com
2021-10-21 09:23:53 +01:00
Miquel Raynal
0a1233031c mfd: ti_am335x_tscadc: Add ADC1/magnetic reader support
Introduce a new compatible that has another set of driver data,
targeting am437x SoCs with a magnetic reader instead of the
touchscreen and a more featureful set of registers.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211015081506.933180-37-miquel.raynal@bootlin.com
2021-10-21 09:23:52 +01:00
Miquel Raynal
bf0f394c7b mfd: ti_am335x_tscadc: Introduce a helper to deal with the type of hardware
One way of knowing which hardware we are dealing with is to check the
compatible string. When this must be done at several places, it's best
and certainly more clear to use a helper for that.

Introduce ti_adc_with_touchscreen() to indicate if there is a touchscreen
controller available (meaning it's an am33xx-like ADC). This helper does
not indicate if it is actually used (that is the purpose of the use_tsc
boolean).

Introducing this helper helps making a difference in the code between
what is generic to both types of ADCs and what is specific to the am33xx
hardware before introducing support for the am437x hardware.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211015081506.933180-36-miquel.raynal@bootlin.com
2021-10-21 09:23:51 +01:00