mmc: core: Add mmc_gpiod_set_cd_config() function

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Some mmc host drivers may need to fixup a card-detection GPIO's config
to e.g. enable the GPIO controllers builtin pull-up resistor on devices
where the firmware description of the GPIO is broken (e.g. GpioInt with
PullNone instead of PullUp in ACPI DSDT).

Since this is the exception rather then the rule adding a config
parameter to mmc_gpiod_request_cd() seems undesirable, so instead
add a new mmc_gpiod_set_cd_config() function. This is simply a wrapper
to call gpiod_set_config() on the card-detect GPIO acquired through
mmc_gpiod_request_cd().

Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240410191639.526324-2-hdegoede@redhat.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

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Hans de Goede 2024-04-10 21:16:34 +02:00 • committed by Ulf Hansson

parent f16d1b8c9b

commit 63a7cd6602

2 changed files with 21 additions and 0 deletions

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20

drivers/mmc/core/slot-gpio.c

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1

include/linux/mmc/slot-gpio.h

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