diff options
Diffstat (limited to 'drivers/mmc/core/slot-gpio.c')
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 3698b0576009..31f7dbb15668 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -149,11 +149,30 @@ void mmc_gpiod_request_cd_irq(struct mmc_host *host) if (irq < 0) host->caps |= MMC_CAP_NEEDS_POLL; - else if ((host->caps & MMC_CAP_CD_WAKE) && !enable_irq_wake(irq)) - host->slot.cd_wake_enabled = true; } EXPORT_SYMBOL(mmc_gpiod_request_cd_irq); +int mmc_gpio_set_cd_wake(struct mmc_host *host, bool on) +{ + int ret = 0; + + if (!(host->caps & MMC_CAP_CD_WAKE) || + host->slot.cd_irq < 0 || + on == host->slot.cd_wake_enabled) + return 0; + + if (on) { + ret = enable_irq_wake(host->slot.cd_irq); + host->slot.cd_wake_enabled = !ret; + } else { + disable_irq_wake(host->slot.cd_irq); + host->slot.cd_wake_enabled = false; + } + + return ret; +} +EXPORT_SYMBOL(mmc_gpio_set_cd_wake); + /* Register an alternate interrupt service routine for * the card-detect GPIO. */ |
