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Switch over to using software nodes/properties to describe the
touchscreen instead of using the legacy platform data. This will
allow to drop support for the platform data from TSC2007 driver
and rely solely on the generic driver properties.
Note: "model" is not part of defined device properties and is not
used by the TSC2007 driver, so it can be safely dropped.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/ZoWg89A8C4gylTGX@google.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Commit 16c2004d9e4d ("mfd: omap-usb-tll: Allocate driver data at once")
changed the memory allocation of 'tll' to consolidate it into a single
allocation, introducing an incorrect size calculation.
In particular, the allocation for the array of pointers was converted
into a single-pointer allocation.
The memory allocation used to occur in two steps:
tll = devm_kzalloc(dev, sizeof(struct usbtll_omap), GFP_KERNEL);
tll->ch_clk = devm_kzalloc(dev, sizeof(struct clk *) * tll->nch,
GFP_KERNEL);
And it turned that into the following allocation:
tll = devm_kzalloc(dev, sizeof(*tll) + sizeof(tll->ch_clk[nch]),
GFP_KERNEL);
sizeof(tll->ch_clk[nch]) returns the size of a single pointer instead of
the expected nch pointers.
This bug went unnoticed because the allocation size was small enough to
fit within the minimum size of a memory allocation for this particular
case [1].
The complete allocation can still be done at once with the struct_size
macro, which comes in handy for structures with a trailing flexible
array.
Fix the memory allocation to obtain the original size again.
Link: https://lore.kernel.org/all/202406261121.2FFD65647@keescook/ [1]
Fixes: 16c2004d9e4d ("mfd: omap-usb-tll: Allocate driver data at once")
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Fixes: commit 16c2004d9e4d ("mfd: omap-usb-tll: Allocate driver data at once")
Link: https://lore.kernel.org/r/20240626-omap-usb-tll-counted_by-v2-1-4bedf20d1b51@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Use the __counted_by compiler attribute for the "struct clk *ch_clk[]"
flexible array member to improve the results of array bound sanitizers.
The comments for the variables are no longer needed as it is now clear
what is what.
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20240620-omap-usb-tll-counted_by-v1-1-77797834bb9a@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Abaci Robot reports:
drivers/mfd/tps6594-core.c:516:2-3: Unneeded semicolon
Let's remove it.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9346
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20240618011854.109426-1-yang.lee@linux.alibaba.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Legacy GPIO APIs are subject to remove. Convert the driver to new APIs.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240605191458.2536819-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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This simplifies probe and also allows us to remove the remove
callbacks from the core and interface drivers. Do that here.
Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240613175430.57698-1-afd@ti.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Use spi_get_device_match_data() helper to simplify a bit the driver.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240606142457.130553-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Use spi_get_device_match_data() helper to simplify a bit the driver.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240606142457.130553-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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'type' is an enum, thus cast of pointer on 64-bit compile test with
clang and W=1 causes:
wm8994-core.c:625:17: error: cast to smaller integer type 'enum wm8994_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
Year ago this was solved, although LKML discussion suggested warning is
not suitable for kernel. Nothing changed in this regard for a year, so
assume the warning will stay and we want to have warnings-free builds.
Link: https://lore.kernel.org/all/20230814160457.GA2836@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/all/20230810095849.123321-1-krzysztof.kozlowski@linaro.org/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240606143648.152668-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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'type' is an enum, thus cast of pointer on 64-bit compile test with
clang and W=1 causes:
mxs-lradc.c:140:15: error: cast to smaller integer type 'enum mxs_lradc_id' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
Year ago this was solved, although LKML discussion suggested warning is
not suitable for kernel. Nothing changed in this regard for a year, so
assume the warning will stay and we want to have warnings-free builds.
Link: https://lore.kernel.org/all/20230814160457.GA2836@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/all/20230810095849.123321-1-krzysztof.kozlowski@linaro.org/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240606143648.152668-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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'type' is an enum, thus cast of pointer on 64-bit compile test with
clang and W=1 causes:
max14577.c:400:23: error: cast to smaller integer type 'enum maxim_device_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]
Year ago this was solved, although LKML discussion suggested warning is
not suitable for kernel. Nothing changed in this regard for a year, so
assume the warning will stay and we want to have warnings-free builds.
Link: https://lore.kernel.org/all/20230814160457.GA2836@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/all/20230810095849.123321-1-krzysztof.kozlowski@linaro.org/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240606143648.152668-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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On x86, make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/arizona.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/pcf50633-gpio.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/timberdale.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/ssbi.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/rt4831.o
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/intel_soc_pmic_bxtwc.o
Add the missing invocation of the MODULE_DESCRIPTION() macro to all
files which have a MODULE_LICENSE().
This includes mfd-core.c and vexpress-sysreg.c which, although they
did not produce a warning with the x86 allmodconfig configuration, may
cause this warning with other configurations.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Andy Shevchenko <andy@kernel.org> # for Intel Broxton PMIC
Link: https://lore.kernel.org/r/20240609-md-drivers-mfd-v1-1-47cdd0b394e9@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
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make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/mfd/qcom-pm8008.o
Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://lore.kernel.org/r/20240603-md-drivers-mfd-qcom-v1-1-88e48013eccc@quicinc.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The driver has intel_lpss_platform_info structs for I2C, SPI, and UART.
The I2C and UART structs are named with "i2c" and "uart" in the variable
name, whereas SPI ones do not mention "spi".
Rename the SPI related info structs to include "spi" in their names for
consistency and to make it obvious in the device ID list what kind of
device the line relates to.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240531142505.1888-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Use device_set_node() instead of assigning pdev->dev.of_node
directly because it also sets the firmware node.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Herve Codina <herve.codina@bootlin.com>
Link: https://lore.kernel.org/r/20240530115147.1112498-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Add the relevant AUXADC driver entries to the MFD cells of the
MT6357, MT6358, MT6359 PMICs to support their Auxiliary ADCs.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240530093410.112716-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Linking a file into two modules can have unintended side-effects
and produces a W=1 warning:
scripts/Makefile.build:236: drivers/mfd/Makefile: rsmu_core.o is added to multiple modules: rsmu-i2c rsmu-spi
Make this one a separate module instead.
Fixes: a1867f85e06e ("mfd: Add Renesas Synchronization Management Unit (SMU) support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240529094856.1869543-1-arnd@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Add ChromeOS EC-based hardware monitoring as EC subdevice.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240529-cros_ec-hwmon-v4-3-5cdf0c5db50a@weissschuh.net
Signed-off-by: Lee Jones <lee@kernel.org>
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Add ChromeOS EC-based charge control as EC subdevice.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240528-cros_ec-charge-control-v2-3-81fb27e1cff4@weissschuh.net
Signed-off-by: Lee Jones <lee@kernel.org>
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The primary use of the CRC PMIC's PWM is for LCD panel backlight
control by the i915 driver.
Due to its complexity the probe() function of the i915 driver does not
support -EPROBE_DEFER handling. So far the pwm-crc driver must be built
into the kernel to ensure that the pwm_get() done by the i915 driver
succeeds at once (rather then returning -EPROBE_DEFER).
But the PWM core can load the module from pwm_get() if a module-name is
provided in the pwm_lookup associated with the consumer device.
Switch to using PWM_LOOKUP_WITH_MODULE() for the lookup added for
the Intel integrated GPU, so that the PWM core can load the module from
pwm_get() as needed allowing the pwm-crc driver to be safely built as
module.
This has been successfully tested on an Asus T100TAM with pwm-crc
build as a module.
Link: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/11081
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20240527114950.326659-1-hdegoede@redhat.com
Signed-off-by: Lee Jones <lee@kernel.org>
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These drivers don't use the driver_data member of struct i2c_device_id,
so don't explicitly initialize this member.
This prepares putting driver_data in an anonymous union which requires
either no initialization or named designators. But it's also a nice
cleanup on its own.
While add it, also remove commas after the sentinel entries.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20240510211011.2273978-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
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linux/gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240508114033.952578-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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linux/gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240508114321.964374-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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In the match() callback, the struct device_driver * should not be
changed, so change the function callback to be a const *. This is one
step of many towards making the driver core safe to have struct
device_driver in read-only memory.
Because the match() callback is in all busses, all busses are modified
to handle this properly. This does entail switching some container_of()
calls to container_of_const() to properly handle the constant *.
For some busses, like PCI and USB and HV, the const * is cast away in
the match callback as those busses do want to modify those structures at
this point in time (they have a local lock in the driver structure.)
That will have to be changed in the future if they wish to have their
struct device * in read-only-memory.
Cc: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Alex Elder <elder@kernel.org>
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Link: https://lore.kernel.org/r/2024070136-wrongdoer-busily-01e8@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Marvell 88PM886 is a PMIC which provides various functions such as
onkey, battery, charger and regulators. It is found for instance in the
samsung,coreprimevelte smartphone with which this was tested. Implement
basic support to allow for the use of regulators and onkey.
Signed-off-by: Karel Balej <balejk@matfyz.cz>
Link: https://lore.kernel.org/r/20240531175109.15599-3-balejk@matfyz.cz
Signed-off-by: Lee Jones <lee@kernel.org>
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Introduce support for Cirrus Logic Device CS40L50: a
haptic driver with waveform memory, integrated DSP,
and closed-loop algorithms.
The MFD component registers and initializes the device.
Signed-off-by: James Ogletree <jogletre@opensource.cirrus.com>
Reviewed-by: Jeff LaBundy <jeff@labundy.com>
Link: https://lore.kernel.org/r/20240620161745.2312359-4-jogletre@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The ROHM BD96801 PMIC is highly customizable automotive grade PMIC
which integrates regulator and watchdog funtionalities.
Provide INTB IRQ and register accesses for regulator/watchdog drivers.
Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Link: https://lore.kernel.org/r/c5260e2dd222e3c64cdf410802bba195637ccb93.1719473802.git.mazziesaccount@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The of_syscon_register_regmap() API allows an externally created regmap
to be registered with syscon. This regmap can then be returned to client
drivers using the syscon_regmap_lookup_by_phandle() APIs.
The API is used by platforms where mmio access to the syscon registers is
not possible, and a underlying soc driver like exynos-pmu provides a SoC
specific regmap that can issue a SMC or hypervisor call to write the
register.
This approach keeps the SoC complexities out of syscon, but allows common
drivers such as syscon-poweroff, syscon-reboot and friends that are used
by many SoCs already to be re-used.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Tested-by: Will McVicker <willmcvicker@google.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240621115544.1655458-2-peter.griffin@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Add ChromeOS EC-based LED control as EC subdevice.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240613-cros_ec-led-v3-5-500b50f41e0f@weissschuh.net
Signed-off-by: Lee Jones <lee@kernel.org>
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Load cros_kbd_led_backlight when the EC reports EC_FEATURE_PWM_KEYB.
This makes cros_kbd_led_backlight work on machines without specific
ACPI or OF support for the keyboard backlight.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lore.kernel.org/r/20240526-cros_ec-kbd-led-framework-v3-4-ee577415a521@weissschuh.net
Signed-off-by: Lee Jones <lee@kernel.org>
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While we list the "IRQ status *and acknowledge*" registers as volatile
in the MFD description, they are missing from the writable range array,
so acknowledging any interrupts was met with an -EIO error.
This error propagates up, leading to the whole AXP717 driver failing to
probe, which is fatal to most systems using this PMIC, since most
peripherals refer one of the PMIC voltage rails.
This wasn't noticed on the initial submission, since the interrupt was
completely missing at this point, but the DTs now merged describe the
interrupt, creating the problem.
Add the five registers that hold those bits to the writable array.
This fixes the boot on the Anbernic systems using the AXP717 PMIC.
Fixes: b5bfc8ab2484 ("mfd: axp20x: Add support for AXP717 PMIC")
Reported-by: Chris Morgan <macromorgan@hotmail.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: John Watts <contact@jookia.org>
Link: https://lore.kernel.org/r/20240613233104.17529-1-andre.przywara@arm.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Rework the pm8008 driver to match the new devicetree binding which no
longer describes internal details like interrupts and register offsets
(including which of the two consecutive I2C addresses the registers
belong to).
Instead make the interrupt controller implementation internal and pass
interrupts to the subdrivers using MFD cell resources.
Note that subdrivers may either get their resources, like register block
offsets, from the parent MFD or this can be included in the subdrivers
directly.
In the current implementation, the temperature alarm driver is generic
enough to just get its base address and alarm interrupt from the parent
driver, which already uses this information to implement the interrupt
controller.
The regulator driver, however, needs additional information like parent
supplies and regulator characteristics so in that case it is easier to
just augment its table with the regulator register base addresses.
Similarly, the current GPIO driver already holds the number of pins and
that lookup table can therefore also be extended with register offsets.
Note that subdrivers can now access the two regmaps by name, even if the
primary regmap is registered last so that it is returned by default when
no name is provided in lookups.
Finally, note that the temperature alarm and GPIO subdrivers need some
minor rework before they can be used with non-SPMI devices like the
PM8008. The temperature alarm MFD cell name specifically uses a "qpnp"
rather than "spmi" prefix to prevent binding until the driver has been
updated.
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-11-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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The i2c client driver data pointer has never been used so drop the
unnecessary assignment.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-8-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Drop the redundant "irq" suffix from the irq chip name.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-7-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Use lower case hex notation for consistency.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-6-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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The regmap irq chip structures can be const so mark them as such.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-5-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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Request and deassert any (optional) reset gpio during probe in case it
has been left asserted by the boot firmware.
Note the reset line is not asserted to avoid reverting to the default
I2C address in case the firmware has configured an alternate address.
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-4-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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The regmap irq array is potentially shared between multiple PMICs and
should only contain static data.
Use a custom macro to initialise also the type fields and drop the
unnecessary updates on each probe.
Fixes: 6b149f3310a4 ("mfd: pm8008: Add driver for QCOM PM8008 PMIC")
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Link: https://lore.kernel.org/r/20240608155526.12996-3-johan+linaro@kernel.org
Signed-off-by: Lee Jones <lee@kernel.org>
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8a3400x device implements its own reg_read and reg_write,
which only supports I2C bus access. This patch adds support
for SMBus access.
Signed-off-by: Min Li <min.li.xe@renesas.com>
Link: https://lore.kernel.org/r/LV3P220MB12021342F302AADEB6C1601CA0192@LV3P220MB1202.NAMP220.PROD.OUTLOOK.COM
Signed-off-by: Lee Jones <lee@kernel.org>
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In 'struct ssbi, the 'slave' field is unused. Remove it.
Found with cppcheck, unusedStructMember.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/8a76de25cefb533d94dfe35062bbd9a8e72f4bb9.1713971415.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Lee Jones <lee@kernel.org>
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The ->init() open codes the functionality of DMI matching code.
Moreover, all DMI quirks are using the same callback and driver_data.
With this in mind, refactor the DMI matching code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240423210706.3709568-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The firmware can only be patched once. The current code checks if the
firmware supports the features required by the driver and then patches
if it does not. This could lead to the device being patched twice if
the device was patched before the driver took control, but with a
firmware that doesn't support the features the driver requires. This
would fail but potentially in unpredictable ways.
The check should actually check the device is at the ROM version, and
patch the device if it is. Then a separate later check should error out
if the devices firmware is still too old to be supported. This will at
least fail in a clean way with a nice error message.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20240423102339.2363400-1-ckeepax@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The variable err is being assigned -ENODEV and then err is being
re-assigned the same error value via the error exit label err_mfd.
The assignment is redundant and can be removed.
Cleans up clang scan build warning:
drivers/mfd/timberdale.c:768:3: warning: Value stored to 'err' is
never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20240415102632.484411-1-colin.i.king@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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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: wangkaiyuan <wangkaiyuan@inspur.com>
Link: https://lore.kernel.org/r/20240429024547.27724-1-wangkaiyuan@inspur.com
Signed-off-by: Lee Jones <lee@kernel.org>
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