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2023-06-15mfd: axp20x: Add support for AXP192Aidan MacDonald1-0/+84
The AXP192 PMIC is similar to the AXP202/AXP209, but with different regulators, additional GPIOs, and a different IRQ register layout. Signed-off-by: Aidan MacDonald <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-06-15mfd: intel-m10-bmc: Manage access to MAX 10 fw handshake registersIlpo Järvinen1-0/+28
On some MAX 10 cards, the BMC firmware is not available to service handshake registers during secure update erase and write phases at normal speeds. This problem affects at least hwmon driver. When the MAX 10 hwmon driver tries to read the sensor values during a secure update, the reads are slowed down (e.g., reading all D5005 sensors takes ~24s which is magnitudes worse than the normal <0.02s). Manage access to the handshake registers using a rw semaphore and a FW state variable to prevent accesses during those secure update phases and return -EBUSY instead. If handshake_sys_reg_nranges == 0, don't update bwcfw_state as it is not used. This avoids the locking cost. Co-developed-by: Russ Weight <[email protected]> Signed-off-by: Russ Weight <[email protected]> Co-developed-by: Xu Yilun <[email protected]> Signed-off-by: Xu Yilun <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-06-15mfd: intel-m10-bmc: Move m10bmc_sys_read() away from headerIlpo Järvinen1-16/+1
Move m10bmc_sys_read() out from the header to prepare it for adding more code into the function which would make it too large to be a static inline any more. While at it, replace the vague wording in function comment with more precise statements. Reviewed-by: Russ Weight <[email protected]> Acked-by: Guenter Roeck <[email protected]> # For hwmon Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Xu Yilun <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-06-15mfd: intel-m10-bmc: Create m10bmc_sys_update_bits()Ilpo Järvinen1-0/+4
Wrap regmap_update_bits() with m10bmc_sys_update_bits() in order to be able to add additional checks into it. Co-developed-by: Russ Weight <[email protected]> Signed-off-by: Russ Weight <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Reviewed-by: Xu Yilun <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-06-15Merge branches 'tb-mfd-clk-input-pinctrl-power-rtc-sound-6.5', ↵Lee Jones5-53/+1103
'ib-mfd-tps6594-core-6.5', 'ib-mfd-regulator-max5970-6.5', 'ib-mfd-regulator-6.5' and 'ib-mfd-power-6.5' into ibs-for-mfd-merged
2023-06-08power: supply: rt5033_battery: Move struct rt5033_battery to battery driverJakob Hauser1-8/+0
Move struct rt5033_battery from the mfd header into the battery driver because it's not used by others. Within struct rt5033_battery, remove the line "struct rt5033_dev *rt5033;" because it doesn't get used. In rt5033.h, remove #include <linux/power_supply.h>, it's not necessary anymore. In rt5033_battery.c, remove #include <linux/mfd/rt5033.h>, it's not necessary anymore either. Instead add #include <linux/regmap.h> and Signed-off-by: Jakob Hauser <[email protected]> Acked-by: Sebastian Reichel <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/736e1cbee257853cb3d1da6f05c184e9a053263b.1684182964.git.jahau@rocketmail.com
2023-06-08power: supply: rt5033_charger: Add RT5033 charger device driverJakob Hauser1-16/+0
This patch adds device driver of Richtek RT5033 PMIC. The driver supports switching charger. rt5033 charger provides three charging modes. The charging modes are pre-charge mode, fast charge mode and constant voltage mode. They vary in charge rate, the charge parameters can be controlled by i2c interface. Tested-by: Raymond Hackley <[email protected]> Signed-off-by: Jakob Hauser <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Acked-by: Sebastian Reichel <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/9556d4ebb30fd321e37aa0eb343554122e4720c9.1684182964.git.jahau@rocketmail.com
2023-06-08mfd: rt5033: Apply preparatory changes before adding rt5033-charger driverJakob Hauser2-19/+36
Order the register blocks to have the masks in descending manner. Add new defines for constant voltage shift (RT5033_CHGCTRL2_CV_SHIFT), MIVR mask (RT5033_CHGCTRL4_MIVR_MASK), pre-charge current shift (RT5033_CHGCTRL4_IPREC_SHIFT), internal timer disable (RT5033_INT_TIMER_DISABLE), termination disable (RT5033_TE_DISABLE), CFO disable (RT5033_CFO_DISABLE), UUG disable (RT5033_CHARGER_UUG_DISABLE). The fast charge timer type needs to be written on mask 0x38 (RT5033_CHGCTRL3_TIMER_MASK). To avoid a bit shift on application, change the values of the timer types to fit the mask. Added the timout duration as a comment. And the timer between TIMER8 and TIMER12 is most likely TIMER10, see e.g. RT5036 [1] page 28 bottom. Add value options for MIVR (Minimum Input Voltage Regulation). Move RT5033_TE_ENABLE_MASK to the block "RT5033 CHGCTRL1 register", in order to have the masks of the register collected there. To fit the naming scheme, rename it to RT5033_CHGCTRL1_TE_EN_MASK. Move RT5033_CHG_MAX_CURRENT to the block "RT5033 charger fast-charge current". Add new defines RT5033_CV_MAX_VOLTAGE and RT5033_CHG_MAX_PRE_CURRENT to the blocks "RT5033 charger constant charge voltage" and "RT5033 charger pre-charge current limits". In include/linux/mfd/rt5033.h, turn power_supply "psy" into a pointer in order to use it in devm_power_supply_register(). [1] https://media.digikey.com/pdf/Data%20Sheets/Richtek%20PDF/RT5036%20%20Preliminary.pdf Signed-off-by: Jakob Hauser <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/31c750ae13a1c1896b51d8f0a0d9869f8b85624f.1684182964.git.jahau@rocketmail.com
2023-06-08mfd: rt5033: Fix STAT_MASK, HZ_MASK and AICR definesJakob Hauser1-4/+5
The charger state mask RT5033_CHG_STAT_MASK should be 0x30 [1][2]. The high impedance mask RT5033_RT_HZ_MASK is actually value 0x02 [3] and is assosiated to the RT5033 CHGCTRL1 register [4]. Accordingly also change RT5033_CHARGER_HZ_ENABLE to 0x02 to avoid the need of a bit shift upon application. For input current limiting AICR mode, the define for the 1000 mA step was missing [5]. Additionally add the define for DISABLE option. Concerning the mask, remove RT5033_AICR_MODE_MASK because there is already RT5033_CHGCTRL1_IAICR_MASK further up. They are redundant and the upper one makes more sense to have the masks of a register colleted there as an overview. [1] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/battery/rt5033_charger.c#L669-L682 [2] https://github.com/torvalds/linux/blob/v6.0/include/linux/mfd/rt5033-private.h#L59-L62 [3] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/include/linux/battery/charger/rt5033_charger.h#L44 [4] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/battery/rt5033_charger.c#L223 [5] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/battery/rt5033_charger.c#L278 Signed-off-by: Jakob Hauser <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/2f17beec3d6c59b41d7e2451d177dc8aaeb7efe2.1684182964.git.jahau@rocketmail.com
2023-06-08mfd: rt5033: Fix chip revision readoutJakob Hauser1-0/+4
After reading the data from the DEVICE_ID register, mask 0x0f needs to be applied to extract the revision of the chip [1]. The other part of the DEVICE_ID register, mask 0xf0, is a vendor identification code. That's how it is set up at similar products of Richtek, e.g. RT9455 [2] page 21 top. [1] https://github.com/msm8916-mainline/linux-downstream/blob/GT-I9195I/drivers/mfd/rt5033_core.c#L484 [2] https://www.richtek.com/assets/product_file/RT9455/DS9455-00.pdf Signed-off-by: Jakob Hauser <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/9a98521ffdf76851d5d344afa6ce65f692ecc024.1684182964.git.jahau@rocketmail.com
2023-06-07TI TPS6594 PMIC support (RTC, pinctrl, regulators)Mark Brown1-0/+1020
Merge series from Esteban Blanc <[email protected]>: TPS6594 is a Power Management IC which provides regulators and others features like GPIOs, RTC, watchdog, ESMs (Error Signal Monitor), and PFSM (Pre-configurable Finite State Machine). The SoC and the PMIC can communicate through the I2C or SPI interfaces. TPS6594 is the super-set device while TPS6593 and LP8764 are derivatives. This series adds support to TI TPS6594 PMIC and its derivatives.
2023-06-06regulator: Add X-Powers AXP15060/AXP313a PMICMark Brown1-0/+32
Merge series from Andre Przywara <[email protected]>: This patch series adds support for the X-Powers AXP15060 and AXP313a PMIC, which are general purpose PMICs as seen on different boards with different SOCs, mostly from Allwinner. This is mostly a repost of the previous patches, combining both the AXP313a and AXP15060 series, rebased on top of v6.4-rc3, and omitting the patches that already got merged. The first two patches are the successors of the AXP313a v10 post, the third patch is based on Shengyu's AXP15060 v3 post. There were no code changes, just some tiny context differences due to the rebase, plus I added the newly gained tags. As the DT bindings and the AXP15060 MFD part are already in the tree, this is just completing support with the MFD part for the AXP313a, and the regulator support for both PMICs.
2023-06-02mfd: max5970: Rename driver and remove wildcardNaresh Solanki1-8/+8
The previous version of this driver included wildcards in file names and descriptions. This patch renames the driver to only support MAX5970 and MAX5978, which are the only chips that the driver actually supports. Signed-off-by: Naresh Solanki <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-25mfd: axp20x: Add support for AXP313a PMICMartin Botka1-0/+32
The AXP313a is a PMIC chip produced by X-Powers, it can be connected via an I2C bus. The name AXP1530 seems to appear as well, and this is what is used in the BSP driver. From all we know it's the same chip, just a different name. However we have only seen AXP313a chips in the wild, so go with this name. Compared to the other AXP PMICs it's a rather simple affair: just three DCDC converters, three LDOs, and no battery charging support. Describe the regmap and the MFD bits, along with the registers exposed via I2C. Aside from the various regulators, also describe the power key interrupts, and adjust the shutdown handler routine to use a different register than the other PMICs. Eventually advertise the device using the new compatible string. Signed-off-by: Martin Botka <[email protected]> Signed-off-by: Andre Przywara <[email protected]> Reviewed-by: Chen-Yu Tsai <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-24ARM/gpio: Push OMAP2 quirk down into TWL4030 driverLinus Walleij1-3/+0
The TWL4030 GPIO driver has a custom platform data .set_up() callback to call back into the platform and do misc stuff such as hog and export a GPIO for WLAN PWR on a specific OMAP3 board. Avoid all the kludgery in the platform data and the boardfile and just put the quirks right into the driver. Make it conditional on OMAP3. I think the exported GPIO is used by some kind of userspace so ordinary DTS hogs will probably not work. Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base") Signed-off-by: Linus Walleij <[email protected]>
2023-05-24ARM/mfd/gpio: Fixup TPS65010 regression on OMAP1 OSK1Linus Walleij1-7/+4
Aaro reports problems on the OSK1 board after we altered the dynamic base for GPIO allocations. It appears this happens because the OMAP driver now allocates GPIO numbers dynamically, so all that is references by number is a bit up in the air. Let's bite the bullet and try to just move the gpio_chip in the tps65010 MFD driver over to using dynamic allocations. Alter everything in the OSK1 board file to use a GPIO descriptor table and lookups. Utilize the NULL device to define some board-specific GPIO lookups and use these to immediately look up the same GPIOs, convert to IRQ numbers and pass as resources to the devices. This is ugly but should work. The .setup() callback for tps65010 was used for some GPIO hogging, but since the OSK1 is the only user in the entire kernel we can alter the signatures to something that is helpful and make a clean transition. Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base") Cc: Christophe Leroy <[email protected]> Cc: [email protected] Cc: Andreas Kemnade <[email protected]> Acked-by: Lee Jones <[email protected]> Reviewed-by: Lee Jones <[email protected]> Reported-by: Aaro Koskinen <[email protected]> Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Linus Walleij <[email protected]>
2023-05-18mfd: tps6594: Add driver for TI TPS6594 PMICJulien Panis1-0/+1020
This patch adds support for TPS6594 PMIC MFD core. It provides communication through the I2C and SPI interfaces, and supports protocols with embedded CRC data fields for safety applications. Signed-off-by: Julien Panis <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-15mfd: rk8xx: Add rk806 supportSebastian Reichel1-0/+409
Add support for SPI connected rk806, which is used by the RK3588 evaluation boards. The PMIC is advertised to support I2C and SPI, but the evaluation boards all use SPI. Thus only SPI support is added here. Tested-by: Diederik de Haas <[email protected]> # Rock64, Quartz64 Model A + B Tested-by: Vincent Legoll <[email protected]> # Pine64 QuartzPro64 Signed-off-by: Sebastian Reichel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-15mfd: rk808: Split into core and i2cSebastian Reichel1-0/+6
Split rk808 into a core and an i2c part in preparation for SPI support. Acked-by: Alexandre Belloni <[email protected]> # for RTC Tested-by: Diederik de Haas <[email protected]> # Rock64, Quartz64 Model A + B Tested-by: Vincent Legoll <[email protected]> # Pine64 QuartzPro64 Signed-off-by: Sebastian Reichel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-15mfd: rk808: Replace 'struct i2c_client' with 'struct device'Sebastian Reichel1-1/+1
Put 'struct device' pointer into the MFD platform_data instead of the 'struct i2c_client' pointer. This simplifies the code and prepares the MFD for SPI support. Tested-by: Diederik de Haas <[email protected]> # Rock64, Quartz64 Model A + B Tested-by: Vincent Legoll <[email protected]> # Pine64 QuartzPro64 Signed-off-by: Sebastian Reichel <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lee Jones <[email protected]>
2023-05-03Merge tag 'pwm/for-6.4-rc1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm Pull pwm updates from Thierry Reding: "The bulk of this is trivial conversions to the new .remove_new() callback for drivers as part of Uwe's effort to clean that up. Other than that a driver is added for Apple devices and various small fixes are included for existing drivers. Last but not least, this finally gets rid of the old pwm_request() and pwm_free() APIs are removed since the last user was dropped in v6.3" * tag 'pwm/for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (44 commits) pwm: Remove unused radix tree pwm: Delete deprecated functions pwm_request() and pwm_free() pwm: meson: Fix g12a ao clk81 name pwm: meson: Fix axg ao mux parents pwm: stm32: Enforce settings for PWM capture MAINTAINERS: Add entries for Apple PWM driver pwm: Add Apple PWM controller dt-bindings: pwm: Add Apple PWM controller pwm: mtk-disp: Configure double buffering before reading in .get_state() pwm: mtk-disp: Disable shadow registers before setting backlight values pwm: stm32-lp: Drop of_match_ptr for ID table pwm: rcar: Drop of_match_ptr for ID table dt-bindings: pwm: Convert Amlogic Meson PWM binding dt-bindings: pwm: mediatek: Add mediatek,mt7986 compatible pwm: xilinx: Convert to platform remove callback returning void pwm: vt8500: Convert to platform remove callback returning void pwm: tiehrpwm: Convert to platform remove callback returning void pwm: tiecap: Convert to platform remove callback returning void pwm: tegra: Convert to platform remove callback returning void pwm: sun4i: Convert to platform remove callback returning void ...
2023-05-02Merge tag 'mfd-next-6.4' of ↵Linus Torvalds10-173/+456
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Drivers: - Add support for Renesas RZ/G2L MTU3 New Device Support: - Add support for Lenovo Yoga Book X90F to Intel CHT WC - Add support for MAX5970 and MAX5978 to Simple MFD (I2C) - Add support for Meteor Lake PCH-S LPSS PCI to Intel LPSS PCI - Add support for AXP15060 PMIC to X-Powers PMIC collection Remove Device Support: - Remove support for Samsung 5M8751 and S5M8763 PMIC devices New Functionality: - Convert deprecated QCOM IRQ Chip to config registers - Add support for 32-bit address spaces to Renesas SMUs Fix-ups: - Make use of APIs / MACROs designed to simplify and demystify - Add / improve Device Tree bindings - Memory saving struct layout optimisations - Remove old / deprecated functionality - Factor out unassigned register addresses from ranges - Trivial: Spelling fixes, renames and coding style fixes - Rid 'defined but not used' warnings - Remove ineffective casts and pointer stubs Bug Fixes: - Fix incorrectly non-inverted mask/unmask IRQs on QCOM platforms - Remove MODULE_*() helpers from non-tristate drivers - Do not attempt to use out-of-range memory addresses associated with io_base - Provide missing export helpers - Fix remap bulk read optimisation fallout - Fix memory leak issues in error paths" * tag 'mfd-next-6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (88 commits) dt-bindings: mfd: ti,j721e-system-controller: Add SoC chip ID leds: bd2606mvv: Driver for the Rohm 6 Channel i2c LED driver dt-bindings: mfd: qcom,spmi-pmic: Document flash LED controller dt-bindings: mfd: x-powers,axp152: Document the AXP15060 variant mfd: axp20x: Add support for AXP15060 PMIC dt-bindings: mfd: x-powers,axp152: Document the AXP313a variant counter: rz-mtu3-cnt: Unlock on error in rz_mtu3_count_ceiling_write() dt-bindings: mfd: dlg,da9063: Document voltage monitoring dt-bindings: mfd: stm32: Remove unnecessary blank lines dt-bindings: mfd: qcom,spmi-pmic: Use generic ADC node name in examples dt-bindings: mfd: syscon: Add nuvoton,ma35d1-sys compatible MAINTAINERS: Add entries for Renesas RZ/G2L MTU3a counter driver counter: Add Renesas RZ/G2L MTU3a counter driver Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select mfd: Add Renesas RZ/G2L MTU3a core driver dt-bindings: timer: Document RZ/G2L MTU3a bindings mfd: rsmu_i2c: Convert to i2c's .probe_new() again mfd: intel-lpss: Add Intel Meteor Lake PCH-S LPSS PCI IDs mfd: dln2: Fix memory leak in dln2_probe() mfd: axp20x: Fix axp288 writable-ranges ...
2023-04-27Merge tag 'char-misc-6.4-rc1' of ↵Linus Torvalds1-8/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc drivers updates from Greg KH: "Here is the "big" set of char/misc and other driver subsystems for 6.4-rc1. It's pretty big, but due to the removal of pcmcia drivers, almost breaks even for number of lines added vs. removed, a nice change. Included in here are: - removal of unused PCMCIA drivers (finally!) - Interconnect driver updates and additions - Lots of IIO driver updates and additions - MHI driver updates - Coresight driver updates - NVMEM driver updates, which required some OF updates - W1 driver updates and a new maintainer to manage the subsystem - FPGA driver updates - New driver subsystem, CDX, for AMD systems - lots of other small driver updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits) mcb-lpc: Reallocate memory region to avoid memory overlapping mcb-pci: Reallocate memory region to avoid memory overlapping mcb: Return actual parsed size when reading chameleon table kernel/configs: Drop Android config fragments virt: acrn: Replace obsolete memalign() with posix_memalign() spmi: Add a check for remove callback when removing a SPMI driver spmi: fix W=1 kernel-doc warnings spmi: mtk-pmif: Drop of_match_ptr for ID table spmi: pmic-arb: Convert to platform remove callback returning void spmi: mtk-pmif: Convert to platform remove callback returning void spmi: hisi-spmi-controller: Convert to platform remove callback returning void w1: gpio: remove unnecessary ENOMEM messages w1: omap-hdq: remove unnecessary ENOMEM messages w1: omap-hdq: add SPDX tag w1: omap-hdq: allow compile testing w1: matrox: remove unnecessary ENOMEM messages w1: matrox: use inline over __inline__ w1: matrox: switch from asm to linux header w1: ds2482: do not use assignment in if condition w1: ds2482: drop unnecessary header ...
2023-04-26mfd: axp20x: Add support for AXP15060 PMICShengyu Qu1-0/+85
The AXP15060 is a PMIC chip produced by X-Powers, and could be connected via an I2C bus. Describe the regmap and the MFD bits, along with the registers exposed via I2C. Eventually advertise the device using a new compatible string and add support for power off the system. The driver would disable PEK function if IRQ is not configured in device tree, since some boards (For example, Starfive Visionfive 2) didn't connect IRQ line of PMIC to SOC. GPIO function isn't enabled in this commit, since its configuration operation is different from any existing AXP PMICs and needs logic modification on existing driver. GPIO support might come in later patches. Signed-off-by: Shengyu Qu <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/TY3P286MB261162D57695AC8164ED50E298609@TY3P286MB2611.JPNP286.PROD.OUTLOOK.COM
2023-04-26mfd: Add Renesas RZ/G2L MTU3a core driverBiju Das1-0/+257
The RZ/G2L multi-function timer pulse unit 3 (MTU3a) is embedded in the Renesas RZ/G2L family SoCs. It consists of eight 16-bit timer channels and one 32-bit timer channel. It supports the following functions - Counter - Timer - PWM The 8/16/32 bit registers are mixed in each channel. Add MTU3a core driver for RZ/G2L SoC. The core driver shares the clk and channel register access for the other child devices like Counter, PWM and Clock event. Signed-off-by: Biju Das <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-04-26mfd: rsmu: Support 32-bit address spaceMin Li1-1/+4
We used to assume 0x2010xxxx address. Now that we need to access 0x2011xxxx address, we need to support read/write the whole 32-bit address space. Also defined RSMU_MAX_WRITE_COUNT and RSMU_MAX_READ_COUNT for readability Signed-off-by: Min Li <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/MW5PR03MB693295AF31ABCAF6AE52EE74A08B9@MW5PR03MB6932.namprd03.prod.outlook.com
2023-04-26mfd: core: Remove .enable() and .disable() callbacksUwe Kleine-König1-12/+0
With commit dd77f5fa97d3 ("mfd: Remove toshiba tmio drivers") the last mfd driver that implements these callbacks is gone and since commit 652719b1003a ("w1: remove ds1wm driver") the last user is gone. The corresponding functions mfd_cell_enable() and mfd_cell_disable() are also unused (since commit 0ca222c81977 ("leds: Remove asic3 driver")). Signed-off-by: Uwe Kleine-König <[email protected]> Acked-by: Arnd Bergmann <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-04-26mfd: max597x: Add support for MAX5970 and MAX5978Patrick Rudolph1-0/+96
Implement a regulator driver with IRQ support for fault management. Written against documentation [1] and [2] and tested on real hardware. Every channel has it's own regulator supply nammed 'vss1-supply' and 'vss2-supply'. The regulator supply is used to determine the output voltage, as the smart switch provides no output regulation. The driver requires the 'shunt-resistor-micro-ohms' to be present in the devicetree to properly calculate current related values. You must specify compatible devictree layout: regulator@3a { reg = <0x3a>; vss1-supply = <&p3v3>; compatible = "maxim,max5978"; ... regulators { sw0_ref: SW0 { regulator-compatible = "SW0"; shunt-resistor-micro-ohms = <12000>; ... } } } 1: https://datasheets.maximintegrated.com/en/ds/MAX5970.pdf 2: https://datasheets.maximintegrated.com/en/ds/MAX5978.pdf ... Changes in V12: - Use simple_mfd_i2c driver and remove previous implementation. - Remove newline - Use _MFD_MAX597X_H in header file - Successfull build need following patch from regulator: https://lore.kernel.org/r/[email protected] https://lore.kernel.org/r/[email protected] Signed-off-by: Patrick Rudolph <[email protected]> Signed-off-by: Marcello Sylvester Bauer <[email protected]> Signed-off-by: Naresh Solanki <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-04-26mfd: rt5033: Fix comments and style in includesJakob Hauser2-14/+10
Fix comments and remove some empty lines in rt5033-private.h. Align struct rt5033_charger in rt5033.h. Signed-off-by: Jakob Hauser <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/606950da6f4b36f5a124ff13756c78644fc89804.1677620677.git.jahau@rocketmail.com
2023-04-26mfd: core: Reorder fields in 'struct mfd_cell' to save some memoryChristophe JAILLET1-4/+4
Group some variables based on their sizes to reduce hole and avoid padding. On x86_64, this shrinks the size from 144 to 128 bytes. As an example: $ size drivers/mfd/as3722.o (Before) text data bss dec hex filename 9441 680 16 10137 2799 drivers/mfd/as3722.o $ size drivers/mfd/as3722.o (After) text data bss dec hex filename 9345 680 16 10041 2739 drivers/mfd/as3722.o Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/bb631974888dfe1af593b6280cf30fb913d2d1a4.1676365116.git.christophe.jaillet@wanadoo.fr
2023-04-26rtc: s5m: Drop S5M8763 supportDavid Virag2-51/+0
The S5M8763 MFD has no device tree compatible, and since board file support for it was removed, there's no way to use this MFD. After removing the remaining code for it from the MFD driver, also remove support for it in the s5m RTC driver, and all remaining references to it. Signed-off-by: David Virag <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-04-26mfd: sec: Remove PMICs without compatiblesDavid Virag2-91/+0
The S5M8751 and S5M8763 PMIC chips have no corresponding compatible values, so since board file support was removed for this driver, there is no way to specify these PMICs as present in boards anymore. Remove leftovers of these chips since it's dead code. Signed-off-by: David Virag <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-04-25Merge tag 'gpio-updates-for-v6.4' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio updates from Bartosz Golaszewski: "We have some new drivers, significant refactoring of existing intel platforms, lots of improvements all around, mass conversion to using immutable irqchips by drivers that had not been converted individually yet and some changes in the core library code. Summary: New drivers: - add a driver for the Loongson GPIO controller - add a driver for the fxl6408 I2C GPIO expander - add a GPIO module containing code common for Intel Elkhart Lake and Merrifield platforms - add a driver for the Intel Elkhart Lake platform reusing the code from the intel tangier library GPIOLIB core: - GPIO ACPI improvements - simplify gpiochip_add_data_with_keys() fwnode handling - cleanup header inclusions (remove unneeded ones, order the rest alphabetically) - remove duplicate code (reuse krealloc() instead of open-coding it, drop a duplicated check in gpiod_find_and_request()) - reshuffle the code to remove unnecessary forward declarations - coding style cleanups and improvements - add a helper for accessing device fwnodes - small updates in docs Driver improvements: - convert all remaining GPIO irqchip drivers to using immutable irqchips - drop unnecessary of_match_ptr() macro expansions - shrink the code in gpio-merrifield significantly by reusing the code from gpio-tangier + minor tweaks to the driver code - remove MODULE_LICENSE() from drivers that can only be built-in - add device-tree support to gpio-loongson1 - use new regmap features in gpio-104-dio-48e and gpio-pcie-idio-24 - minor tweaks and fixes to gpio-xra1403, gpio-sim, gpio-tegra194, gpio-omap, gpio-aspeed, gpio-raspberrypi-exp - shrink code in gpio-ich and gpio-pxa - Kconfig tweak for gpio-pmic-eic-sprd" * tag 'gpio-updates-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (99 commits) gpio: gpiolib: Simplify gpiochip_add_data_with_key() fwnode gpiolib: Add gpiochip_set_data() helper gpiolib: Move gpiochip_get_data() higher in the code gpiolib: Check array_info for NULL only once in gpiod_get_array() gpiolib: Replace open coded krealloc() gpiolib: acpi: Add a ignore wakeup quirk for Clevo NL5xNU gpiolib: acpi: Move ACPI device NULL check to acpi_get_driver_gpio_data() gpiolib: acpi: use the fwnode in acpi_gpiochip_find() gpio: mm-lantiq: Fix typo in the newly added header filename sh: mach-x3proto: Add missing #include <linux/gpio/driver.h> powerpc/40x: Add missing select OF_GPIO_MM_GPIOCHIP gpio: xlp: Convert to immutable irq_chip gpio: xilinx: Convert to immutable irq_chip gpio: xgs-iproc: Convert to immutable irq_chip gpio: visconti: Convert to immutable irq_chip gpio: tqmx86: Convert to immutable irq_chip gpio: thunderx: Convert to immutable irq_chip gpio: stmpe: Convert to immutable irq_chip gpio: siox: Convert to immutable irq_chip gpio: rda: Convert to immutable irq_chip ...
2023-04-13iio: adc: palmas: remove adc_wakeupX_dataPatrik Dahlström1-8/+0
It does not seem to be used by anyone and later patches in this series are made simpler by first removing this. There is now a lot of dead code that cannot be reached, until later patches revive it. Arguably, this is preferred over removing the code only to add it again. Signed-off-by: Patrik Dahlström <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jonathan Cameron <[email protected]>
2023-04-12regulator: da9063: add voltage monitoring registersBenjamin Bara1-0/+23
Add the definitions for the registers responsible for voltage monitoring. Add a voltage monitor enable bitfield per regulator. Reviewed-by: Matti Vaittinen <[email protected]> Reviewed-by: Adam Ward <[email protected]> Signed-off-by: Benjamin Bara <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
2023-04-06pwm: stm32: Enforce settings for PWM captureOlivier Moysan1-0/+1
The PWM capture assumes that the input selector is set to default input and that the slave mode is disabled. Force reset state for TISEL and SMCR registers to match this requirement. Note that slave mode disabling is not a pre-requisite by itself for capture mode, as hardware supports it for PWM capture. However, the current implementation of the driver does not allow slave mode for PWM capture. Setting slave mode for PWM capture results in wrong capture values. Signed-off-by: Olivier Moysan <[email protected]> Acked-by: Lee Jones <[email protected]> Acked-by: Uwe Kleine-König <[email protected]> Signed-off-by: Thierry Reding <[email protected]>
2023-03-06gpiolib: split linux/gpio/driver.h out of linux/gpio.hArnd Bergmann1-0/+1
Almost all gpio drivers include linux/gpio/driver.h, and other files should not rely on includes from this header. Remove the indirect include from here and include the correct headers directly from where they are used. Reviewed-by: Andy Shevchenko <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Signed-off-by: Andy Shevchenko <[email protected]> Acked-by: Lee Jones <[email protected]>
2023-02-25Merge tag 'clk-for-linus' of ↵Linus Torvalds1-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk updates from Stephen Boyd: "We have one small patch to the clk core this time around. It fixes a corner case with the CLK_OPS_PARENT_ENABLE flag combined with clk_core_is_enabled() where it hangs the system. We'll simply assume the clk is disabled if the parent is disabled and the flag is set. Trying to turn on the parent to check the enable state of the clk runs into system hangs at boot. We let this bake in -next for a couple weeks to make sure there aren't any more issues because the last attempt to fix this ran into hangs and had to be reverted. Note: There were some more patches to the core framework around sync_state and disabling unused clks, but I asked for that to be reverted from the qcom PR because it isn't ready and we're still discussing the best solution on the list. Outside of the core clk framework, we have the usual collection of clk driver updates and support for new SoCs (which seems to never stop). The dirstat is dominated by Qualcomm because they added support for quite a few SoCs this time around and also migrated quite a few of their drivers to clk_parent_data. The other big diff is in the Mediatek clk drivers that saw a significant rework this cycle to similarly modernize the code, and we'll see that work continue in the next cycle as well. Nothing really jumps out as scary here, except that the significant churn in parent data descriptions can have typos that go unnoticed. More details below. Core: - Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled() New Drivers: - Add a new clk-gpr-mux clock type and use it on i.MX6Q to add ENET ref clocks - Support for Mediatek MT7891 SoC clks - Support for many Qualcomm clk controllers: - QDU1000/QRU1000 global clock controller - SA8775P global clock controller - SM8550 TCSR and display clock controller - SM6350 clock controller - MSM8996 CBF and APCS clock controllers Updates: - Various cleanups and improvements to Mediatek clk drivers to reduce code size and modernize the drivers - Support for Versa 5P49V60 clks - Disable R-Car H3 ES1.*, as it was only available to an internal development group and needed a lot of quirks and workarounds - Add PWM, Compare-Match Timer (TIM), USB, SDHI, and eMMC clocks and resets on Renesas RZ/V2M - Add display clocks on Renesas R-Car V4H - Add Camera Receiving Unit (CRU) clocks and resets on Renesas RZ/G2L - Free the imx_uart_clocks even if imx_register_uart_clocks returns early - Get the stdout clocks count from device tree on i.MX - Drop the clock count argument from imx_register_uart_clocks() - Keep the uart clocks on i.MX93 for when earlycon is used - Fix SPDX comment in i.MX6SLL clocks bindings header - Drop some unnecessary spaces from i.MX8ULP clocks bindings header - Add imx_obtain_fixed_of_clock() for allowing to add a clock that is not configured via devicetree - Fix the ENET1 gate configuration for i.MX6UL according to the reference manual - Add ENET refclock mux support for i.MX6UL - Add support for USB host/device configuration on Renesas RZ/N1 - Add PLL2 programming support, and CAN-FD clocks on Renesas R-Car V4H - Add D1 CAN bus gates and resets for Allwinner - Mark D1 CPUX clock as critical on Allwinner - Reuse D1 driver for Allwinner R528/T113 - Cleanup sunxi-ng Kconfig - Fix sunxi-ng kernel-doc issues - Model Allwinner H3/H5 DRAM clock as fixed clock - Use .determine_rate() instead of .round_rate() for the dualdiv, mpll, sclk-div and cpu-dyn-div amlogic clock drivers - DDR clocks were marked as critical in the proper clock driver for each AT91 SoC such that drivers/memory/atmel-sdramc.c to be deleted in the next releases as it only does clock enablement - Patch to avoid compiling dt-compat.o for all AT91 SoCs as only some of them may use it - Support synchronous power_off requests in the qcom GDSC driver for proper GPU power collapse - Drop test clocks from various Qualcomm clk drivers - Update parent references to use clk_parent_data/clk_hw in various Qualcomm clk drivers - Fixes for the Qualcomm MSM8996 CPU clock controller - Transition Qualcomm MSM8974 GCC off the externally defined sleep_clk - Add GDSCs in the global clock controller for Qualcomm QCS404 - The SDCC core clocks on Qualcomm SM6115 are moved to floor_ops - Programming of clk_dis_wait for GPU CX GDSC on Qualcomm SC7180 and SDM845 are moved to use the recently introduced properties in the GDSC struct - Qualcomm's RPMh clock driver gains SM8550 and SA8775P clocks, and the IPA clock is added on a variety of platforms - De-duplicate identical clks in Qualcomm SMD RPM clk driver - Add a few missing clocks across msm8998, msm8992, msm8916, qcs404 to Qualcomm SDM RPM clk driver - Various Qualcomm clk drivers use devm_pm_runtime_enable() to simplify" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (228 commits) clk: qcom: apcs-msm8986: Include bitfield.h for FIELD_PREP clk: qcom: Revert sync_state based clk_disable_unused clk: imx: pll14xx: fix recalc_rate for negative kdiv clk: rs9: Drop unused pin_xin field MAINTAINERS: clk: imx: Add Peng Fan as reviewer clk: sprd: Add dependency for SPRD_UMS512_CLK clk: ralink: fix 'mt7621_gate_is_enabled()' function clk: mediatek: clk-mtk: Remove unneeded semicolon dt-bindings: clock: remove stih416 bindings dt-bindings: clock: add loongson-2 clock dt-bindings: clock: add loongson-2 clock include file clk: imx: fix compile testing imxrt1050 clk: Honor CLK_OPS_PARENT_ENABLE in clk_core_is_enabled() clk: imx: set imx_clk_gpr_mux_ops storage-class-specifier to static clk: renesas: rcar-gen3: Disable R-Car H3 ES1.* dt-bindings: clock: Merge qcom,gpucc-sm8350 into qcom,gpucc.yaml clk: qcom: gpucc-sdm845: fix clk_dis_wait being programmed for CX GDSC clk: qcom: gpucc-sc7180: fix clk_dis_wait being programmed for CX GDSC dt-bindings: clock: qcom,sa8775p-gcc: add the power-domains property clk: qcom: cpu-8996: add missing cputype include ...
2023-02-23Merge tag 'mfd-next-6.3' of ↵Linus Torvalds6-45/+182
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "Core Framework: - Change MFD support status from Supported to Maintained New Drivers: - Add support for the Intel Platform Management Component Interface (PMCI) Removed Drivers: - HTC PASIC3 LED/DS1WM - Toshiba T7L66XB, TC6387XB and TC6393XB TMIO New Device Support: - Add support for N6000 Flash to Intel M10 BMC PMCI - Add support for Lenovo Yoga Tab 3 to Intel CHTWC PMIC New Functionality: - Provide Reset support to Syscon Fix-ups: - Explicitly provide missing include files - Pass platform type data/info via the SPI/I2C/DT registration strategy - Lots of DT documentation / adaptions - Replace scnprintf() with preferred sysfs_emit() - Remove unused / superfluous code - Fix some trivial whitesspace / spelling / grammatical issues - Replace pm_power_off with new and improved register_sys_off_handler() API Bug Fixes: - Reintroduce RK808-clkout registration - fixing Wi-Fi and Bluetooth - Repair the order of AXPxxx IRQ PEK RISE/FALL definitions - Refuse to build CS5535 on unsupported UML architectures - Fix memory leaks in error return paths - Prevent refcount leaks in error return paths" * tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (40 commits) dt-bindings: mfd: qcom,tcsr: Add compatible for IPQ5332 dt-bindings: mfd: Add NXP BBNSM mfd: ntxec: Add version number for EC in Tolino Vision dt-bindings: mfd: syscon: Add mt8365-syscfg mfd: Remove toshiba tmio drivers mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak mfd: syscon: Allow reset control for syscon devices dt-bindings: mfd/syscon: Add resets property dt-bindings: mfd: syscon: Add amd,pensando-elba-syscon compatible dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8226 mfd: simple-mfd-i2c: Fix incoherent comment regarding DT registration mfd: axp20x: Switch to the sys-off handler API mfd: core: Spelling s/compement/complement/ mfd: max8925: Remove the unused function irq_to_max8925() mfd: qcom-pm8xxx: Remove set but unused variable 'rev' dt-bindings: mfd: syscon: Document GXP register compatible mfd: twl4030-power: Drop empty platform remove function mfd: twl: Fix TWL6032 phy vbus detection mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read() MAINTAINERS: Move MFD from a Supported to Maintaied state ...
2023-02-22mfd: ntxec: Add version number for EC in Tolino VisionAndreas Kemnade1-1/+1
The EC firmware has a different version number than anything defined until now. Signed-off-by: Andreas Kemnade <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: Remove toshiba tmio driversArnd Bergmann5-419/+0
Four separate mfd drivers are in the "tmio" family, and all of them were used in now-removed PXA machines (eseries, tosa, and hx4700), so the mfd drivers and all its children can be removed as well. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: core: Spelling s/compement/complement/Geert Uytterhoeven1-1/+1
Fix a misspelling of "complement". Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/aa7abd7103a0e4be954ea63de78f12e8251b2964.1673271092.git.geert+renesas@glider.be
2023-02-22mfd: twl: Fix TWL6032 phy vbus detectionAndreas Kemnade1-0/+2
TWL6032 has a few charging registers prepended before the charging registers the TWL6030 has. To be able to use common register defines declare the additional registers as additional module. At the moment this affects the access to CHARGERUSB_CTRL1 in phy-twl6030-usb. Without this patch, it is accessing the wrong register on TWL6032. The consequence is that presence of Vbus is not reported. Cc: Bin Liu <[email protected]> Cc: Tony Lindgren <[email protected]> Signed-off-by: Andreas Kemnade <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22mfd: axp20x: Fix order of pek rise and fall eventsAren Moynihan1-5/+10
The power button can get "stuck" if the rising edge and falling edge irq are read in the same pass. This can often be triggered when resuming from suspend if the power button is released before the kernel handles the interrupt. Swapping the order of the rise and fall events makes sure that the press event is handled first, which prevents this situation. Signed-off-by: Aren Moynihan <[email protected]> Reviewed-by: Samuel Holland <[email protected]> Tested-by: Samuel Holland <[email protected]> Acked-by: Chen-Yu Tsai <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-22Merge tags 'ib-mfd-extcon-i2c-v6.3' and 'ib-mfd-fpga-hwmon-v6.3-1' into ↵Lee Jones1-38/+167
ibs-for-mfd-merged Immutable branch between MFD, Extcon and I2C due for the v6.3 merge window Immutable branch between MFD, FPGA and HWMON due for the v6.3 merge window
2023-02-04mfd: intel_soc_pmic_chtwc: Add Lenovo Yoga Tab 3 X90F to intel_cht_wc_modelsHans de Goede1-0/+1
The drivers for various CHT Whiskey Cove PMIC child-devices need to know the model, since they have model specific behavior. The DMI match table for this is shared between the child-device-drivers inside the MFD driver. Add the Lenovo Yoga Tab 3 X90F, which is a previously unknown tablet model with a CHT Whiskey Cove PMIC, to the intel_cht_wc_models enum and to the DMI match table. Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-01mfd: remove htc-pasic3 driverArnd Bergmann1-54/+0
The htc-pasic3 MFD device was only used in the PXA magician machine that is now removed, so this can be recycled as well. Cc: Lee Jones <[email protected]> Cc: Philipp Zabel <[email protected]> Acked-by: Robert Jarzmik <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-02-01mfd: remove toshiba tmio driversArnd Bergmann5-419/+0
Four separate mfd drivers are in the "tmio" family, and all of them were used in now-removed PXA machines (eseries, tosa, and hx4700), so the mfd drivers and all its children can be removed as well. Cc: Lee Jones <[email protected]> Cc: Wolfram Sang <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Acked-by: Robert Jarzmik <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2023-01-31clk: imx6ul: add ethernet refclock mux supportOleksij Rempel1-2/+4
Add ethernet refclock mux support and set it to internal clock by default. This configuration will not affect existing boards. clock tree before this patch: fec1 <- enet1_ref_125m (gate) <- enet1_ref (divider) <-, |- pll6_enet fec2 <- enet2_ref_125m (gate) <- enet2_ref (divider) <-´ after this patch: fec1 <- enet1_ref_sel(mux) <- enet1_ref_125m (gate) <- ... `--<> enet1_ref_pad |- pll6_enet fec2 <- enet2_ref_sel(mux) <- enet2_ref_125m (gate) <- ... `--<> enet2_ref_pad Signed-off-by: Oleksij Rempel <[email protected]> Acked-by: Lee Jones <[email protected]> Reviewed-by: Abel Vesa <[email protected]> Signed-off-by: Abel Vesa <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-01-30fpga: m10bmc-sec: Add support for N6000Ilpo Järvinen1-0/+51
Add support for PMCI-based flash access path and N6000 sec update support. Access to flash staging area is different for N6000 from that of the SPI interfaced counterparts. Introduce intel_m10bmc_flash_bulk_ops to allow interface specific differentiations for the flash access path for sec update and make m10bmc_sec_read/write() in sec update driver to use the new operations. The .flash_mutex serializes read/read. Flash update (erase+write) must use ->lock/unlock_write() to prevent reads during update (reads would timeout on setting flash MUX as BMC will prevent it). Create a type specific RSU status reg handler for N6000 because the field has moved from doorbell to auth result register. If a failure is detected while altering the flash MUX, it seems safer to try to set it back and doesn't seem harmful. Likely there are enough troubles in that case anyway so setting it back fails too (which is harmless sans the small extra delay) or just confirms that the value wasn't changed. Co-developed-by: Tianfei zhang <[email protected]> Signed-off-by: Tianfei zhang <[email protected]> Co-developed-by: Russ Weight <[email protected]> Signed-off-by: Russ Weight <[email protected]> Acked-by: Xu Yilun <[email protected]> Signed-off-by: Ilpo Järvinen <[email protected]> Signed-off-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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