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| author | Hans de Goede <hdegoede@redhat.com> | 2024-04-10 21:16:34 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-16 13:41:35 +0200 |
| commit | 36a28616d4dee5ac48c9b98f61cf442f1d307f9e (patch) | |
| tree | 221d25d2656230690485befc009baec5ca844d9f /include | |
| parent | 7170d0c0da31931e90bdb34ed24101582bdc7b2f (diff) | |
| download | linux-36a28616d4dee5ac48c9b98f61cf442f1d307f9e.tar.gz linux-36a28616d4dee5ac48c9b98f61cf442f1d307f9e.tar.bz2 linux-36a28616d4dee5ac48c9b98f61cf442f1d307f9e.zip | |
mmc: core: Add mmc_gpiod_set_cd_config() function
commit 63a7cd660246aa36af263b85c33ecc6601bf04be upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mmc/slot-gpio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h index 4ae2f2908f99..d4a1567c94d0 100644 --- a/include/linux/mmc/slot-gpio.h +++ b/include/linux/mmc/slot-gpio.h @@ -20,6 +20,7 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id, unsigned int debounce); int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id, unsigned int idx, unsigned int debounce); +int mmc_gpiod_set_cd_config(struct mmc_host *host, unsigned long config); void mmc_gpio_set_cd_isr(struct mmc_host *host, irqreturn_t (*isr)(int irq, void *dev_id)); int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on); |