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Commit 9d3de467 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "mmc: core: Add card detection IRQ restore"

parents 5a9ea48e 40bce510

drivers/mmc/core/slot-gpio.c

+21 −0
Original line number Diff line number Diff line
@@ -132,6 +132,27 @@ int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio) 
}

EXPORT_SYMBOL(mmc_gpio_request_ro);



void mmc_gpiod_free_cd_irq(struct mmc_host *host)

{

	devm_free_irq(host->parent, host->slot.cd_irq, host);

}

EXPORT_SYMBOL(mmc_gpiod_free_cd_irq);



void mmc_gpiod_restore_cd_irq(struct mmc_host *host)

{

	struct mmc_gpio *ctx = host->slot.handler_priv;

	int irq = host->slot.cd_irq;



	if (irq >= 0) {

		devm_request_threaded_irq(host->parent, irq,

			NULL, ctx->cd_gpio_isr,

			IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |

			IRQF_ONESHOT,

			ctx->cd_label, host);

	}

}

EXPORT_SYMBOL(mmc_gpiod_restore_cd_irq);



void mmc_gpiod_request_cd_irq(struct mmc_host *host)

{

	struct mmc_gpio *ctx = host->slot.handler_priv;

include/linux/mmc/slot-gpio.h

+2 −0
Original line number Diff line number Diff line
@@ -31,6 +31,8 @@ int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id, 
			 unsigned int debounce, bool *gpio_invert);

void mmc_gpio_set_cd_isr(struct mmc_host *host,

			 irqreturn_t (*isr)(int irq, void *dev_id));

void mmc_gpiod_free_cd_irq(struct mmc_host *host);

void mmc_gpiod_restore_cd_irq(struct mmc_host *host);

void mmc_gpiod_request_cd_irq(struct mmc_host *host);

bool mmc_can_gpio_cd(struct mmc_host *host);

void mmc_register_extcon(struct mmc_host *host);