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path: root/drivers/mfd
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2024-05-10mfd: rohm-bd71828: Add power off functionalityAndreas Kemnade
Since the chip can power off the system, add the corresponding functionality. Based on https://github.com/kobolabs/Kobo-Reader/raw/master/hw/imx6sll-clara2e/kernel.tar.bz2 Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/20240402111700.494004-3-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Remove dead codeAndy Shevchenko
scnprintf() never returns negative value, drop the respective dead code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-7-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Drop duplicate NULL check in ->exit()Andy Shevchenko
Since platform_device_unregister() is NULL-aware, we don't need to duplicate this check. Remove it and fold the rest of the code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-6-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Use PLATFORM_DEVID_NONE instead of -1Andy Shevchenko
Use the `PLATFORM_DEVID_NONE` constant instead of hard-coding -1 when creating a platform device. No functional changes are intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-5-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Simplify device registrationAndy Shevchenko
Use platform_device_register_full() instead of open coding this function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-4-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Use device core to create driver-specific device attributesAndy Shevchenko
Instead of creating driver-specific device attributes with sysfs_create_group() have device core do this by setting up dev_groups pointer in the driver structure. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-3-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: kempld: Replace ACPI code with agnostic oneAndy Shevchenko
There is no need to include and use entire ACPI stack in the driver. Replace respective pieces by agnostic code. No functional change indented. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240223195113.880121-2-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10mfd: intel-lpss: Switch over to MSI interruptsAndy Shevchenko
Some devices support MSI interrupts. Let's at least try to use them in platforms that provide MSI capability. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20240312165905.1764507-1-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-10Merge branches 'ib-mfd-misc-pinctrl-regulator-6.10', ↵Lee Jones
'ib-mfd-pinctrl-regulator-6.10' and 'ib-mfd-regulator-6.10' into ibs-for-mfd-merged
2024-05-03mfd: tps6594-core: Add TI TPS65224 PMIC coreBhargav Raviprakash
Add functionality of the TPS65224 PMIC to the TPS6594 core driver. This includes adding IRQ resource, MFD cells, and device initialization for TPS65224. Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com> Acked-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/0109018f2fdc7df4-b986892b-9dac-4af2-90f5-57fd67ed154d-000000@ap-south-1.amazonses.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-03mfd: tps6594-spi: Add TI TPS65224 PMIC SPIBhargav Raviprakash
Add support for TPS65224 PMIC in TPS6594's SPI driver which has significant functional overlap. Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com> Acked-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/0109018f2fdc6328-6d13785c-9832-471b-bdfe-fb1dac3bdc60-000000@ap-south-1.amazonses.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-03mfd: tps6594-i2c: Add TI TPS65224 PMIC I2CBhargav Raviprakash
Add support for TPS65224 PMIC in TPS6594's I2C driver which has significant functional overlap. Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com> Acked-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/0109018f2fdaecea-12513236-1059-4227-9078-7b3e0d447cc0-000000@ap-south-1.amazonses.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-03mfd: tps6594: Use volatile_table instead of volatile_regBhargav Raviprakash
In regmap_config use volatile_table instead of volatile_reg. This change makes it easier to add support for TPS65224 PMIC. Signed-off-by: Bhargav Raviprakash <bhargav.r@ltts.com> Acked-by: Julien Panis <jpanis@baylibre.com> Link: https://lore.kernel.org/r/0109018f2f267f6e-3121fa42-4816-45f7-a96d-0d6b4678da5a-000000@ap-south-1.amazonses.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-05-03mfd: rk8xx: Add RK816 supportAlex Bee
This integrates RK816 support in the this existing rk8xx mfd driver. This version has unaligned interrupt registers, which requires to define a separate get_irq_reg callback for the regmap. Apart from that the integration is straightforward and the existing structures can be used as is. The initialization sequence has been taken from vendor kernel. Signed-off-by: Alex Bee <knaerzche@gmail.com> Link: https://lore.kernel.org/r/20240416161237.2500037-3-knaerzche@gmail.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-28mfd: axp20x: Add support for AXP717 PMICAndre Przywara
The AXP717a is a PMIC chip produced by X-Powers, it can be connected to an I2C or RSB bus. It's a rather complete PMIC, with many regulators, interrupts, an ADC and battery charging functionality. It also offer USB type-C CC pin handling. Describe the regmap and the MFD bits, along with the registers exposed via I2C or RSB. This covers the regulator, interrupts and power key devices for now. Advertise the device using the new compatible string. Signed-off-by: Andre Przywara <andre.przywara@arm.com> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Tested-by: Ryan Walklin <ryan@testtoast.com> Link: https://lore.kernel.org/r/20240310010211.28653-4-andre.przywara@arm.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-03-21Merge tag 'tty-6.9-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY/Serial driver updates and cleanups for 6.9-rc1. Included in here are: - more tty cleanups from Jiri - loads of 8250 driver cleanups from Andy - max310x driver updates - samsung serial driver updates - uart_prepare_sysrq_char() updates for many drivers - platform driver remove callback void cleanups - stm32 driver updates - other small tty/serial driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'tty-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) dt-bindings: serial: stm32: add power-domains property serial: 8250_dw: Replace ACPI device check by a quirk serial: Lock console when calling into driver before registration serial: 8250_uniphier: Switch to use uart_read_port_properties() serial: 8250_tegra: Switch to use uart_read_port_properties() serial: 8250_pxa: Switch to use uart_read_port_properties() serial: 8250_omap: Switch to use uart_read_port_properties() serial: 8250_of: Switch to use uart_read_port_properties() serial: 8250_lpc18xx: Switch to use uart_read_port_properties() serial: 8250_ingenic: Switch to use uart_read_port_properties() serial: 8250_dw: Switch to use uart_read_port_properties() serial: 8250_bcm7271: Switch to use uart_read_port_properties() serial: 8250_bcm2835aux: Switch to use uart_read_port_properties() serial: 8250_aspeed_vuart: Switch to use uart_read_port_properties() serial: port: Introduce a common helper to read properties serial: core: Add UPIO_UNKNOWN constant for unknown port type serial: core: Move struct uart_port::quirks closer to possible values serial: sh-sci: Call sci_serial_{in,out}() directly serial: core: only stop transmit when HW fifo is empty serial: pch: Use uart_prepare_sysrq_char(). ...
2024-03-05mfd: cs42l43: Fix wrong GPIO_FN_SEL and SPI_CLK_CONFIG1 defaultsMaciej Strozek
Two regs have wrong values in existing fields, change them to match the datasheet. Fixes: ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver") Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240301101547.2136948-1-mstrozek@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-29mfd: cs42l43: Fix wrong register defaultsMaciej Strozek
A few regs have unnecessary values in defaults, change them to match the datasheet Fixes: ace6d1448138 ("mfd: cs42l43: Add support for cs42l43 core driver") Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240229155616.118457-1-mstrozek@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-29mfd: mt6397-core: Register mt6357 sound codecFabien Parent
Add MT6357 codec entry in the MFD driver. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20240226-audio-i350-v1-13-4fa1cea1667f@baylibre.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: kempld-core: Don't replace resources provided by ACPIMichael Brunner
The current implementation to retrieve ACPI resources is faulty and may cause issues that even can lead to non-booting systems. When adding data from an ACPI device, the resources are already assigned to the platform device. Therefore there is no need to retrieve the resource list from ACPI and manually assign it to the platform device. Also there shouldn't be any BIOS in the wild anymore, that does not have resources added to the KEMPLD ACPI data. In particular this fixes an issue where the retrieval of the resource list using /proc/ioports is disturbed and does not list the assigned resource for the kempld device or even no resources at all. On some distributions this also leads to problems during system initialization (e.g. with udev) and causes the system to not boot at all. I have reproduced the issue with the following kernel versions: 5.10.209 5.15.148 6.1.25 6.6.17 6.7.5 6.8-rc5 The patch applies to all of those versions and seems to resolve the issue. Signed-off-by: Michael Brunner <michael.brunner@kontron.com> Link: https://lore.kernel.org/r/af8756be81c9062f9543d2e5d9373cf5e7877b1e.camel@kontron.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: cros_ec_dev: Add GPIO device if feature present on ECStephen Boyd
The ChromeOS embedded controller (EC) supports setting the state of GPIOs when the system is unlocked, and getting the state of GPIOs in all cases. Check for the feature support by checking for the GPIO feature and then populate a sub-device for the gpio hardware on the EC. Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20240219202325.4095816-3-swboyd@chromium.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: twl: Select MFD_COREAlexander Sverdlin
Fix link error: ld.bfd: drivers/mfd/twl-core.o: in function `twl_probe': git/drivers/mfd/twl-core.c:846: undefined reference to `devm_mfd_add_devices' Cc: <stable@vger.kernel.org> Fixes: 63416320419e ("mfd: twl-core: Add a clock subdevice for the TWL6032") Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Reviewed-by: Andreas Kemnade <andreas@kemnade.info> Link: https://lore.kernel.org/r/20240221143021.3542736-1-alexander.sverdlin@siemens.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: core: Constify the struct device_type usageRicardo B. Marliere
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver core can properly handle constant struct device_type. Move the mfd_dev_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net> Link: https://lore.kernel.org/r/20240219-device_cleanup-mfd-v1-1-e4eef5ed2da8@marliere.net Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rk8xx-core: Fix interrupt processing order for power key buttonOndrej Jirman
Process rise event last, to avoid stuck keys when multiple interrupts are coalesced. This can happen typically when resuming from suspend via power key press and holding the power button for a bit too short, so that RISE an FALL IRQ flags are set before any interrupt routine has a chance to run. Input subsystem will interpret it as holding down a power key for a long time, which leads to unintended initiation of shutdown UI on some OSes. Signed-off-by: Ondrej Jirman <megi@xff.cz> Link: https://lore.kernel.org/r/20240217195615.1767907-1-megi@xff.cz Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: twl4030-power: Accept standard property for power controllerAndreas Kemnade
Instead of only accepting the ti specific properties accept also the standard property. For uniformity, search in the parent node for the tag. The code for powering off is also isolated from the rest in this file. So it is a pure Linux design decision to put it here. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Link: https://lore.kernel.org/r/20240217082007.3238948-6-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: twl-core: Add power off implementation for twl603xAndreas Kemnade
If the system-power-controller property is there, enable power off. Implementation is based on a Linux v3.0 vendor kernel. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Link: https://lore.kernel.org/r/20240217082007.3238948-3-andreas@kemnade.info Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: altera-sysmgr: Call of_node_put() only when of_parse_phandle() takes a refPeter Griffin
of_parse_phandle() returns a device_node with refcount incremented, which the callee needs to call of_node_put() on when done. We should only call of_node_put() when the property argument is provided though as otherwise nothing has taken a reference on the node. Fixes: f36e789a1f8d ("mfd: altera-sysmgr: Add SOCFPGA System Manager") Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20240220115012.471689-4-peter.griffin@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: syscon: Call of_node_put() only when of_parse_phandle() takes a refPeter Griffin
of_parse_phandle() returns a device_node with refcount incremented, which the callee needs to call of_node_put() on when done. We should only call of_node_put() when the property argument is provided though as otherwise nothing has taken a reference on the node. Fixes: 45330bb43421 ("mfd: syscon: Allow property as NULL in syscon_regmap_lookup_by_phandle") Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Link: https://lore.kernel.org/r/20240220115012.471689-2-peter.griffin@linaro.org Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: mc13xxx: Use bitfield helpersGeert Uytterhoeven
Use the FIELD_GET() helper, instead of defining a custom macro implementing the same operation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/ef7d5fc3d867338520392417cdf2b67ba19aecde.1708002264.git.geert+renesas@glider.be Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rc5t583: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-19-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: stpmic1: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-18-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: stmfx: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-17-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: si476x: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-16-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rsmu_i2c: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-15-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rn5t618: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-14-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rk8xx: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-13-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: rohm: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Acked-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/20240206071314.8721-12-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: wolfson: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240206071314.8721-11-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: lochnagar-i2c: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20240206071314.8721-10-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: khadas-mcu: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240206071314.8721-9-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: dialog: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-8-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: bd9571mwv: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-7-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: bcm590xx: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-6-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: axp20x: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-5-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: as3722: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-4-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: as3711: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-3-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: ac100: Convert to use maple tree register cacheBo Liu
The maple tree register cache is based on a much more modern data structure than the rbtree cache and makes optimisation choices which are probably more appropriate for modern systems than those made by the rbtree cache. Signed-off-by: Bo Liu <liubo03@inspur.com> Link: https://lore.kernel.org/r/20240206071314.8721-2-liubo03@inspur.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: mcp-core: Make mcp_bus_type constRicardo B. Marliere
Now that the driver core can properly handle constant struct bus_type, move the mcp_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: "Ricardo B. Marliere" <ricardo@marliere.net> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20240204-bus_cleanup-mfd-v1-1-07335ebc034f@marliere.net Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: cs42l43: Handle error from devm_pm_runtime_enable()Charles Keepax
As it devm_pm_runtime_enable() can fail due to memory allocations, it is best to handle the error. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240129152557.3221212-6-ckeepax@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
2024-02-23mfd: cs42l43: Add some missing dev_err_probe()sCharles Keepax
Use of dev_err_probe() was missed in the i2c and sdw parts of the code, update the missing parts. Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240129152557.3221212-5-ckeepax@opensource.cirrus.com Signed-off-by: Lee Jones <lee@kernel.org>
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