diff options
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 18 | ||||
| -rw-r--r-- | include/linux/mmc/slot-gpio.h | 2 |
2 files changed, 19 insertions, 1 deletions
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 1a3edbd47719..27117ba47073 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -25,6 +25,7 @@ struct mmc_gpio { struct gpio_desc *cd_gpio; bool override_ro_active_level; bool override_cd_active_level; + irqreturn_t (*cd_gpio_isr)(int irq, void *dev_id); char *ro_label; char cd_label[0]; }; @@ -136,8 +137,10 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host) irq = -EINVAL; if (irq >= 0) { + if (!ctx->cd_gpio_isr) + ctx->cd_gpio_isr = mmc_gpio_cd_irqt; ret = devm_request_threaded_irq(host->parent, irq, - NULL, mmc_gpio_cd_irqt, + NULL, ctx->cd_gpio_isr, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, ctx->cd_label, host); if (ret < 0) @@ -151,6 +154,19 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host) } EXPORT_SYMBOL(mmc_gpiod_request_cd_irq); +/* Register an alternate interrupt service routine for + * the card-detect GPIO. + */ +void mmc_gpio_set_cd_isr(struct mmc_host *host, + irqreturn_t (*isr)(int irq, void *dev_id)) +{ + struct mmc_gpio *ctx = host->slot.handler_priv; + + WARN_ON(ctx->cd_gpio_isr); + ctx->cd_gpio_isr = isr; +} +EXPORT_SYMBOL(mmc_gpio_set_cd_isr); + /** * mmc_gpio_request_cd - request a gpio for card-detection * @host: mmc host diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h index 4a36d6954631..3945a8c9d3cb 100644 --- a/include/linux/mmc/slot-gpio.h +++ b/include/linux/mmc/slot-gpio.h @@ -26,6 +26,8 @@ int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id, int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id, unsigned int idx, bool override_active_level, 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_request_cd_irq(struct mmc_host *host); #endif |