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2020-03-30mfd: omap: Remove useless cast for driver.nameCorentin Labbe
device_driver name is const char pointer, so it not useful to cast xx_driver_name (which is already const char). Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30mfd: Kconfig: Fix some misspelling of the word functionalityChristophe JAILLET
Fix several variations of typo around functionali{ty,es}. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30mfd: pm8xxx: Replace zero-length array with flexible-array memberGustavo A. R. Silva
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30mfd: omap-usb-tll: Replace zero-length array with flexible-array memberGustavo A. R. Silva
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30mfd: cpcap: Fix compile if MFD_CORE is not selectedTony Lindgren
If only cpcap mfd driver is selected we will get: ERROR: "devm_mfd_add_devices" [drivers/mfd/motorola-cpcap.ko] undefined! This is because Kconfig is missing select for MFD_CORE. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30mfd: cros_ec: Check DT node for usbpd-notify addPrashant Malani
Add a check to ensure there is indeed an EC device tree entry before adding the cros-usbpd-notify device. This covers configs where both CONFIG_ACPI and CONFIG_OF are defined, but the EC device is defined using device tree and not in ACPI. Fixes: 4602dce0361e ("mfd: cros_ec: Add cros-usbpd-notify subdevice") Signed-off-by: Prashant Malani <pmalani@chromium.org> Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-30Merge branches 'ib-mfd-iio-input-5.7' and 'ib-mfd-iio-rtc-5.7' into ↵Lee Jones
ibs-for-mfd-merged
2020-03-27mfd: rn5t618: Cleanup i2c_device_idAndreas Kemnade
That list was just empty, so it can be removed if .probe_new instead of .probe is used Suggested-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-27mfd: rn5t618: Add more subdevicesAndreas Kemnade
Since the RC5T619 has a RTC, use a separate subdevice list for that. The ADC should be the same as in the RN5T618, according to drivers in the wild, but since it is not tested, the ADC is only added for the RC5T619. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-27mfd: rn5t618: Add RTC related registersAndreas Kemnade
Defines for some RTC related registers were missing, also they were not included in the volatile register list Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-27mfd: rn5t618: Add IRQ supportAndreas Kemnade
This adds support for IRQ handling in the RC5T619 which is required for properly implementing subdevices like RTC. For now only definitions for the variant RC5T619 are included. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-03-27mfd: Add support for Azoteq IQS620A/621/622/624/625Jeff LaBundy
This patch adds core support for the Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-02-04Merge tag 'tag-chrome-platform-for-v5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: "CrOS EC: - Refactoring of some of cros_ec's headers: include/linux/mfd/cros_ec.h now removed, new cros_ec.h added to drivers/platform/chrome which contains shared operations of cros_ec transport drivers. - Response tracing in cros_ec_proto Wilco EC: - Fix unregistration order. - Fix keyboard backlight probing on systems without keyboard backlight - Minor cleanup (newlines in printks, COMPILE_TEST) Misc: - chromeos_laptop converted to use i2c_new_scanned_device instead of i2c_new_probed_device" * tag 'tag-chrome-platform-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: cros_ec: Match implementation with headers platform/chrome: cros_ec: Drop unaligned.h include platform/chrome: wilco_ec: Allow wilco to be compiled in COMPILE_TEST platform/chrome: wilco_ec: Add newlines to printks platform/chrome: wilco_ec: Fix unregistration order cros_ec: treewide: Remove 'include/linux/mfd/cros_ec.h' platform/chrome: cros_ec_ishtp: Make init_lock static platform/chrome: chromeos_laptop: Convert to i2c_new_scanned_device platform/chrome: cros_ec_lpc: Use platform_get_irq_optional() for optional IRQs platform/chrome: cros_ec_proto: Add response tracing platform/chrome: cros_ec_trace: Match trace commands with EC commands
2020-02-03Merge tag 'mfd-next-5.6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for ROHM BD71828 PMICs and GPIOs - Add support for Qualcomm Aqstic Audio Codecs WCD9340 and WCD9341 New Device Support: - Add support for BD71828 to BD70528 RTC driver - Add support for Intel's Jasper Lake to LPSS PCI New Functionality: - Add support for Power Key to ROHM BD71828 - Add support for Clocks to ROHM BD71828 - Add support for GPIOs to Dialog DA9062 - Add support for USB PD Notify to ChromiumOS EC - Allow callers to specify args when requesting regmap lookup; syscon Fix-ups: - Improve error handling and sanity checking; atmel-hlcdc, dln2 - Device Tree support/documentation; bd71828, da9062, xylon,logicvc, ab8500, max14577, atmel-usart - Match devices using platform IDs; bd7xxxx - Refactor BD718x7 regulator component; bd718x7-regulator - Use standard interfaces/helpers; syscon, sm501 - Trivial (whitespace, spelling, etc); ab8500-core, Kconfig - Remove unused code; db8500-prcmu, tqmx86 - Wait until boot has finished before accessing registers; madera-core - Provide missing register value defaults; cs47l15-tables - Allow more time for hardware to reset; madera-core Bug Fixes: - Fix erroneous register values; rohm-bd70528 - Fix register volatility; axp20x, rn5t618 - Fix Kconfig dependencies; MFD_MAX77650 - Fix incorrect compatible string; da9062-core - Fix syscon_regmap_lookup_by_phandle_args() stub; syscon" * tag 'mfd-next-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (41 commits) mfd: syscon: Fix syscon_regmap_lookup_by_phandle_args() dummy mfd: wcd934x: Add support to wcd9340/wcd9341 codec mfd: syscon: Add arguments support for syscon reference mfd: rn5t618: Mark ADC control register volatile dt-bindings: atmel-usart: Add microchip,sam9x60-{usart, dbgu} dt-bindings: atmel-usart: Remove wildcard mfd: cros_ec: Add cros-usbpd-notify subdevice mfd: da9062: Fix watchdog compatible string mfd: madera: Allow more time for hardware reset mfd: cs47l15: Add missing register default mfd: madera: Wait for boot done before accessing any other registers mfd: Kconfig: Rename Samsung to lowercase mfd: tqmx86: remove set but not used variable 'i2c_ien' mfd: dbx500-prcmu: Drop DSI pll clock functions mfd: dbx500-prcmu: Drop set_display_clocks() mfd: max77650: Select REGMAP_IRQ in Kconfig mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile mfd: ab8500: Fix ab8500-clk typo mfd: intel-lpss: Add Intel Jasper Lake PCI IDs dt-bindings: mfd: max14577: Add reference to max14040_battery.txt descriptions ...
2020-01-31Merge tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds
Pull MIPS changes from Paul Burton: "Nothing too big or scary in here: - Support mremap() for the VDSO, primarily to allow CRIU to restore the VDSO to its checkpointed location. - Restore the MIPS32 cBPF JIT, after having reverted the enablement of the eBPF JIT for MIPS32 systems in the 5.5 cycle. - Improve cop0 counter synchronization behaviour whilst onlining CPUs by running with interrupts disabled. - Better match FPU behaviour when emulating multiply-accumulate instructions on pre-r6 systems that implement IEEE754-2008 style MACs. - Loongson64 kernels now build using the MIPS64r2 ISA, allowing them to take advantage of instructions introduced by r2. - Support for the Ingenic X1000 SoC & the really nice little CU Neo development board that's using it. - Support for WMAC on GARDENA Smart Gateway devices. - Lots of cleanup & refactoring of SGI IP27 (Origin 2*) support in preparation for introducing IP35 (Origin 3*) support. - Various Kconfig & Makefile cleanups" * tag 'mips_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (60 commits) MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and Fuel MIPS: Loongson64: Disable exec hazard MIPS: Loongson64: Bump ISA level to MIPSR2 MIPS: Make DIEI support as a config option MIPS: OCTEON: octeon-irq: fix spelling mistake "to" -> "too" MIPS: asm: local: add barriers for Loongson MIPS: Loongson64: Select mac2008 only feature MIPS: Add MAC2008 Support Revert "MIPS: Add custom serial.h with BASE_BAUD override for generic kernel" MIPS: sort MIPS and MIPS_GENERIC Kconfig selects alphabetically (again) MIPS: make CPU_HAS_LOAD_STORE_LR opt-out MIPS: generic: don't unconditionally select PINCTRL MIPS: don't explicitly select LIBFDT in Kconfig MIPS: sync-r4k: do slave counter synchronization with disabled HW interrupts MIPS: SGI-IP30: Check for valid pointer before using it MIPS: syscalls: fix indentation of the 'SYSNR' message MIPS: boot: fix typo in 'vmlinux.lzma.its' target MIPS: fix indentation of the 'RELOCS' message dt-bindings: Document loongson vendor-prefix MIPS: CU1000-Neo: Refresh defconfig to support HWMON and WiFi. ...
2020-01-29mfd: wcd934x: Add support to wcd9340/wcd9341 codecSrinivas Kandagatla
Qualcomm WCD9340/WCD9341 Codec is a standalone Hi-Fi audio codec IC. This codec has integrated SoundWire controller, pin controller and interrupt controller. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: syscon: Add arguments support for syscon referenceOrson Zhai
There are a lot of similar global registers being used across multiple SoCs from Unisoc. But most of these registers are assigned with different offset for different SoCs. It is hard to handle all of them in an all-in-one kernel image. Add a helper function to get regmap with arguments where we could put some extra information such as the offset value. Signed-off-by: Orson Zhai <orson.zhai@unisoc.com> Tested-by: Baolin Wang <baolin.wang@unisoc.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: rn5t618: Mark ADC control register volatileAndreas Kemnade
There is a bit which gets cleared after conversion. Fixes: 9bb9e29c78f8 ("mfd: Add Ricoh RN5T618 PMIC core driver") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: cros_ec: Add cros-usbpd-notify subdevicePrashant Malani
Add the cros-usbpd-notify driver as a subdevice on platforms that support the EC_FEATURE_USB_PD EC feature flag and don't have the ACPI PD notification device defined. This driver allows other cros-ec devices to receive PD event notifications from the Chrome OS Embedded Controller (EC) via a notification chain. Signed-off-by: Prashant Malani <pmalani@chromium.org> Reviewed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: da9062: Fix watchdog compatible stringMarco Felsch
The watchdog driver compatible is "dlg,da9062-watchdog" and not "dlg,da9062-wdt". Therefore the mfd-core can't populate the of_node and fwnode. As result the watchdog driver can't parse the devicetree. Fixes: 9b40b030c4ad ("mfd: da9062: Supply core driver") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: madera: Allow more time for hardware resetCharles Keepax
Both manual and power on resets have a brief period where the chip will not be accessible immediately afterwards. Extend the time allowed for this from a minimum of 1mS to 2mS based on newer evaluation of the hardware and ensure this reset happens in all reset conditions. Whilst making the change also remove the redundant NULL checks in the reset functions as the GPIO functions already check for this. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: cs47l15: Add missing register defaultCharles Keepax
Accessory detect mode 1 is missing a default, add one to the table. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: madera: Wait for boot done before accessing any other registersCharles Keepax
It is advised to wait for the boot done bit to be set before reading any other register, update the driver to respect this. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: Kconfig: Rename Samsung to lowercaseKrzysztof Kozlowski
Fix up inconsistent usage of upper and lowercase letters in "Samsung" name. "SAMSUNG" is not an abbreviation but a regular trademarked name. Therefore it should be written with lowercase letters starting with capital letter. Although advertisement materials usually use uppercase "SAMSUNG", the lowercase version is used in all legal aspects (e.g. on Wikipedia and in privacy/legal statements on https://www.samsung.com/semiconductor/privacy-global/). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: tqmx86: remove set but not used variable 'i2c_ien'yu kuai
Fixes gcc '-Wunused-but-set-variable' warning: drivers/mfd/tqmx86.c: In function ‘tqmx86_probe’: drivers/mfd/tqmx86.c:161:29: warning: variable ‘i2c_ien’ set but not used I[-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by: yu kuai <yukuai3@huawei.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: dbx500-prcmu: Drop DSI pll clock functionsLinus Walleij
The DSI PLLs are handled by the generic clock framework since ages, this code is completely unused and misleading. Delete it. Cc: Stephan Gerhold <stephan@gerhold.net> Cc: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: dbx500-prcmu: Drop set_display_clocks()Linus Walleij
The display clocks are handled by the generic clock framework since ages, this code is completely unused and misleading. Delete it. Cc: Stephan Gerhold <stephan@gerhold.net> Cc: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: max77650: Select REGMAP_IRQ in KconfigBartosz Golaszewski
MAX77650 MFD driver uses regmap_irq API but doesn't select the required REGMAP_IRQ option in Kconfig. This can cause the following build error if regmap irq is not enabled implicitly by someone else: ld: drivers/mfd/max77650.o: in function `max77650_i2c_probe': max77650.c:(.text+0xcb): undefined reference to `devm_regmap_add_irq_chip' ld: max77650.c:(.text+0xdb): undefined reference to `regmap_irq_get_domain' make: *** [Makefile:1079: vmlinux] Error 1 Fix it by adding the missing option. Fixes: d0f60334500b ("mfd: Add new driver for MAX77650 PMIC") Reported-by: Paul Gazzillo <paul@pgazz.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatileSamuel Holland
On AXP288 and newer PMICs, bit 7 of AXP20X_VBUS_IPSOUT_MGMT can be set to prevent using the VBUS input. However, when the VBUS unplugged and plugged back in, the bit automatically resets to zero. We need to set the register as volatile to prevent regmap from caching that bit. Otherwise, regcache will think the bit is already set and not write the register. Fixes: cd53216625a0 ("mfd: axp20x: Fix axp288 volatile ranges") Cc: stable@vger.kernel.org Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: ab8500: Fix ab8500-clk typoLinus Walleij
Commit f4d41ad84433 ("mfd: ab8500: Example using new OF_MFD_CELL MACRO") has a typo error renaming "ab8500-clk" to "abx500-clk" with the result att ALSA SoC audio broke as the clock driver was not probing anymore. Fixed it up. Fixes: f4d41ad84433 ("mfd: ab8500: Example using new OF_MFD_CELL MACRO") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Stephan Gerhold <stephan@gerhold.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: intel-lpss: Add Intel Jasper Lake PCI IDsAndy Shevchenko
Intel Jasper Lake has the same LPSS than Intel Ice Lake. Add the new IDs to the list of supported devices. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: ab8500-core: Add device tree support for AB8505Stephan Gerhold
AB8505 support was never fully converted to the device tree. Most of the MFD cells for AB8505 lack an "of_compatible", which prevents them from being configured through the device tree. Align the definition of the AB8505 MFD cells with the ones for AB8500, and add device tree compatibles. Except for GPIO and regulators the compatibles are equal to those used for AB8500 because the hardware does not differ much. Finally, change db8500_prcmu_register_ab8500() to check for the AB8505 device tree node additionally, and probe it if it is found. Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: da9062: add support for the DA9062 GPIOs in the coreMarco Felsch
Currently the da9062 GPIO's aren't available. The patch adds the support to make these available by adding a gpio device with the corresponding irq resources. Furthermore the patch fixes a minor style issue for the onkey device. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: dln2: More sanity checking for endpointsOliver Neukum
It is not enough to check for the number of endpoints. The types must also be correct. Reported-and-tested-by: syzbot+48a2851be24583b864dc@syzkaller.appspotmail.com Signed-off-by: Oliver Neukum <oneukum@suse.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: sm501: Fix mismatches of request_mem_regionChuhong Yuan
This driver misuses release_resource + kfree to match request_mem_region, which is incorrect. The right way is to use release_mem_region. Replace the mismatched calls with the right ones to fix it. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: syscon: Re-use resource_size() to count max_registerAndy Shevchenko
Instead of open coded variant use resource_size() and replace weird '- 3' to more understandable '- 4'. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24Merge branches 'ib-mfd-drm-5.6' and 'ib-mfd-clk-gpio-regulator-rtc-5.6' into ↵Lee Jones
ibs-for-mfd-merged
2020-01-24mfd: bd71828: Add power-key supportMatti Vaittinen
Use gpio_keys to send power input-event to user-space when power button (short) press is detected. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: bd71828: Support ROHM BD71828 PMIC - coreMatti Vaittinen
BD71828GW is a single-chip power management IC for battery-powered portable devices. The IC integrates 7 buck converters, 7 LDOs, and a 1500 mA single-cell linear charger. Also included is a Coulomb counter, a real-time clock (RTC), 3 GPO/regulator control pins, HALL input and a 32.768 kHz clock gate. Add MFD core driver providing interrupt controller facilities and i2c access to sub device drivers. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: bd718x7: Add compatible for BD71850Matti Vaittinen
ROHM BD71850 PMIC is almost identical to BD71847. Main difference is some initial voltage values for regulators. The BD71850 can be handled by BD71847 driver but adding own compatible makes it clearer for one who creates the DT for board containing this PMIC and allows SW to be differentiating PMICs if needed. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-24mfd: Rohm PMICs: Use platform_device_id to match MFD sub-devicesMatti Vaittinen
Thanks to Stephen Boyd I today learned we can use platform_device_id to do device and module matching for MFD sub-devices! Do device matching using the platform_device_id instead of using explicit module_aliases to load modules and custom parent-data field to do module loading and sub-device matching. Cc: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-09mfd: ioc3: Add driver for SGI IOC3 chipThomas Bogendoerfer
SGI IOC3 chip has integrated ethernet, keyboard and mouse interface. It also supports connecting a SuperIO chip for serial and parallel interfaces. IOC3 is used inside various SGI systemboards and add-on cards with different equipped external interfaces. Support for ethernet and serial interfaces were implemented inside the network driver. This patchset moves out the not network related parts to a new MFD driver, which takes care of card detection, setup of platform devices and interrupt distribution for the subdevices. Serial portion: Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> Network part: Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Network part: Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: James Hogan <jhogan@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-serial@vger.kernel.org
2020-01-07cros_ec: treewide: Remove 'include/linux/mfd/cros_ec.h'Enric Balletbo i Serra
This header file now only includes the cros_ec_dev struct, however, is the 'include/linux/platform_data/cros_ec_proto.h' who contains the definition of all the Chrome OS EC related structs. There is no reason to have a separate include for this struct so move to the place where other structs are defined. That way, we can remove the include itself, but also simplify the common pattern #include <linux/mfd/cros_ec.h> #include <linux/platform_data/cros_ec_proto.h> for a single include #include <linux/platform_data/cros_ec_proto.h> The changes to remove the cros_ec.h include were generated with the following shell script: git grep -l "<linux/mfd/cros_ec.h>" | xargs sed -i '/<linux\/mfd\/cros_ec.h>/d' Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Sebastian Reichel <sre@kernel.org> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2020-01-07mfd: atmel-hlcdc: Return in case of errorClaudiu Beznea
For HLCDC timing engine configurations bit ATMEL_HLCDC_SIP of ATMEL_HLCDC_SR needs to be polled before applying new config. In case of timeout there is no indicator about this, so, return in case of timeout and also print a message about this. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-07mfd: atmel-hlcdc: Add struct device member to struct atmel_hlcdc_regmapClaudiu Beznea
Add struct device member to struct atmel_hlcdc_regmap to be able to use dev_*() specific logging functions. Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2020-01-03drm/i915/dsi: Move Crystal Cove PMIC panel GPIO lookup from mfd to the i915 ↵Hans de Goede
driver Move the Crystal Cove PMIC panel GPIO lookup-table from drivers/mfd/intel_soc_pmic_core.c to the i915 driver. The moved looked-up table is adding a GPIO lookup to the i915 PCI device and the GPIO subsys allows only one lookup table per device, The intel_soc_pmic_core.c code only adds lookup-table entries for the PMIC panel GPIO (as it deals only with the PMIC), but we also need to be able to access some GPIOs on the SoC itself, which requires entries for these GPIOs in the lookup-table. Since the lookup-table is attached to the i915 PCI device it really should be part of the i915 driver, this will also allow us to extend it with GPIOs from other sources when necessary. Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191216205122.1850923-5-hdegoede@redhat.com
2019-12-17mfd: intel_soc_pmic: Rename pwm_backlight pwm-lookup to pwm_pmic_backlightHans de Goede
At least Bay Trail (BYT) and Cherry Trail (CHT) devices can use 1 of 2 different PWM controllers for controlling the LCD's backlight brightness. Either the one integrated into the PMIC or the one integrated into the SoC (the 1st LPSS PWM controller). So far in the LPSS code on BYT we have skipped registering the LPSS PWM controller "pwm_backlight" lookup entry when a Crystal Cove PMIC is present, assuming that in this case the PMIC PWM controller will be used. On CHT we have been relying on only 1 of the 2 PWM controllers being enabled in the DSDT at the same time; and always registered the lookup. So far this has been working, but the correct way to determine which PWM controller needs to be used is by checking a bit in the VBT table and recently I've learned about 2 different BYT devices: Point of View MOBII TAB-P800W Acer Switch 10 SW5-012 Which use a Crystal Cove PMIC, yet the LCD is connected to the SoC/LPSS PWM controller (and the VBT correctly indicates this), so here our old heuristics fail. Since only the i915 driver has access to the VBT, this commit renames the "pwm_backlight" lookup entries for the Crystal Cove PMIC's PWM controller to "pwm_pmic_backlight" so that the i915 driver can do a pwm_get() for the right controller depending on the VBT bit, instead of the i915 driver relying on a "pwm_backlight" lookup getting registered which magically points to the right controller. Acked-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20191216202906.1662893-3-hdegoede@redhat.com
2019-12-03Merge tag 'tag-chrome-platform-for-v5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform changes from Benson Leung: "CrOS EC / MFD / IIO: - Contains tag-ib-chrome-mfd-iio-input-5.5, which is the first part of a series from Gwendal to refactor sensor code between MFD, CrOS EC, iio and input in order to add a new sensorhub driver and FIFO processing Wilco EC: - Add support for Dell's USB PowerShare policy control, keyboard backlight LED driver, and a new test_event file. - Fixes use after free in wilco_ec's telemetry driver. Misc: - bugfix in cros_usbpd_logger (missing destroy workqueue)" * tag 'tag-chrome-platform-for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: platform/chrome: wilco_ec: fix use after free issue platform/chrome: cros_ec: Add Kconfig default for cros-ec-sensorhub Revert "Input: cros_ec_keyb: mask out extra flags in event_type" Revert "Input: cros_ec_keyb - add back missing mask for event_type" platform/chrome: cros_ec: handle MKBP more events flag platform/chrome: cros_ec: Do not attempt to register a non-positive IRQ number platform/chrome: cros-ec: Record event timestamp in the hard irq mfd / platform / iio: cros_ec: Register sensor through sensorhub iio / platform: cros_ec: Add cros-ec-sensorhub driver mfd / platform: cros_ec: Add sensor_count and make check_features public platform/chrome: cros_ec: Put docs with the code platform/chrome: cros_usbpd_logger: add missed destroy_workqueue in remove platform/chrome: cros_ec: Fix Kconfig indentation platform/chrome: wilco_ec: Add keyboard backlight LED support platform/chrome: wilco_ec: Add charging config driver platform/chrome: wilco_ec: Add Dell's USB PowerShare Policy control platform/chrome: wilco_ec: Add debugfs test_event file
2019-12-01Merge tag 'mfd-next-5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Frameworks: - Add support for a "resource managed strongly uncachable ioremap" call - Provide a collection of MFD helper macros - Remove mfd_clone_cell() from MFD core - Add NULL de-reference protection in MFD core - Remove superfluous function fd_platform_add_cell() from MFD core - Honour Device Tree's request to disable a device New Drivers: - Add support for MediaTek MT6323 PMIC New Device Support: - Add support for Gemini Lake to Intel LPSS PCI - Add support for Cherry Trail Crystal Cover PMIC to Intel SoC PMIC CRC - Add support for PM{I}8950 to Qualcomm SPMI PMIC - Add support for U8420 to ST-Ericsson DB8500 - Add support for Comet Lake PCH-H to Intel LPSS PCI New Functionality: - Add support for requested supply clocks; madera-core Fix-ups: - Lower interrupt priority; rk808 - Use provided helpers (macros, group functions, defines); rk808, ipaq-micro, ab8500-core, db8500-prcmu, mt6397-core, cs5535-mfd - Only allocate IRQs on request; max77620 - Use simplified API; arizona-core - Remove redundant and/or duplicated code; wm8998-tables, arizona, syscon - Device Tree binding fix-ups; madera, max77650, max77693 - Remove mfd_cell->id abuse hack; cs5535-mfd - Remove only user of mfd_clone_cell(); cs5535-mfd - Make resources static; rohm-bd70528 Bug Fixes: - Fix product ID for RK818; rk808 - Fix Power Key; rk808 - Fix booting on the BananaPi; mt6397-core - Endian fix-ups; twl.h - Fix static error checker warnings; ti_am335x_tscadc" * tag 'mfd-next-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (47 commits) Revert "mfd: syscon: Set name of regmap_config" mfd: ti_am335x_tscadc: Fix static checker warning mfd: bd70528: Staticize bit value definitions mfd: mfd-core: Honour Device Tree's request to disable a child-device dt-bindings: mfd: max77693: Fix missing curly brace mfd: intel-lpss: Add Intel Comet Lake PCH-H PCI IDs mfd: db8500-prcmu: Support U8420-sysclk firmware dt-bindings: mfd: max77650: Convert the binding document to yaml mfd: mfd-core: Move pdev->mfd_cell creation back into mfd_add_device() mfd: mfd-core: Remove usage counting for .{en,dis}able() call-backs x86: olpc-xo1-sci: Remove invocation of MFD's .enable()/.disable() call-backs x86: olpc-xo1-pm: Remove invocation of MFD's .enable()/.disable() call-backs mfd: mfd-core: Remove mfd_clone_cell() mfd: mfd-core: Protect against NULL call-back function pointer mfd: cs5535-mfd: Register clients using their own dedicated MFD cell entries mfd: cs5535-mfd: Request shared IO regions centrally mfd: cs5535-mfd: Remove mfd_cell->id hack mfd: cs5535-mfd: Use PLATFORM_DEVID_* defines and tidy error message mfd: intel_soc_pmic_crc: Add "cht_crystal_cove_pmic" cell to CHT cells mfd: madera: Add support for requesting the supply clocks ...
2019-11-27Merge tag 'for-v5.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - test_power: add support for current and charge_counter - cpcap-charger: improve charge calculation and limit default charge voltage - ab8500: convert to IIO - misc small fixes all over drivers * tag 'for-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (29 commits) power: supply: bd70528: Add MODULE_ALIAS to allow module auto loading power: supply: ab8500_charger: Fix inconsistent IS_ERR and PTR_ERR power: supply: cpcap-charger: cpcap_charger_voltage_to_regval() can be static power: supply: cpcap-battery: Add basic coulomb counter calibrate support power: supply: cpcap-battery: Read and save integrator register CCI power: supply: cpcap-battery: Simplify short term power average calculation power: supply: cpcap-battery: Simplify coulomb counter calculation with div_s64 power: supply: cpcap-battery: Move coulomb counter units per lsb to ddata power: supply: cpcap-charger: Allow changing constant charge voltage power: supply: cpcap-battery: Fix handling of lowered charger voltage power: supply: cpcap-charger: Improve battery detection power: supply: cpcap-battery: Check voltage before orderly_poweroff power: supply: cpcap-charger: Limit voltage to 4.2V for battery power: supply: ab8500: Handle invalid IRQ from platform_get_irq_byname() power: supply: ab8500_fg: Do not free non-requested IRQs in probe's error path power: supply: ab8500: Cleanup probe in reverse order power: reset: at91: fix __le32 cast in reset code power: supply: abx500_chargalg: Fix code indentation mfd: Switch the AB8500 GPADC to IIO iio: adc: New driver for the AB8500 GPADC ...
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