diff options
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/slot-gpio.c | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/drivers/mmc/core/slot-gpio.c b/drivers/mmc/core/slot-gpio.c index 46596b71a32..86547a2a82c 100644 --- a/drivers/mmc/core/slot-gpio.c +++ b/drivers/mmc/core/slot-gpio.c @@ -10,6 +10,7 @@ #include <linux/err.h> #include <linux/gpio.h> +#include <linux/gpio/consumer.h> #include <linux/interrupt.h> #include <linux/jiffies.h> #include <linux/mmc/host.h> @@ -18,8 +19,10 @@ #include <linux/slab.h> struct mmc_gpio { - int ro_gpio; - int cd_gpio; + struct gpio_desc *ro_gpio; + struct gpio_desc *cd_gpio; + bool override_ro_active_level; + bool override_cd_active_level; char *ro_label; char cd_label[0]; }; @@ -57,8 +60,6 @@ static int mmc_gpio_alloc(struct mmc_host *host) ctx->ro_label = ctx->cd_label + len; snprintf(ctx->cd_label, len, "%s cd", dev_name(host->parent)); snprintf(ctx->ro_label, len, "%s ro", dev_name(host->parent)); - ctx->cd_gpio = -EINVAL; - ctx->ro_gpio = -EINVAL; host->slot.handler_priv = ctx; } } @@ -72,11 +73,14 @@ int mmc_gpio_get_ro(struct mmc_host *host) { struct mmc_gpio *ctx = host->slot.handler_priv; - if (!ctx || !gpio_is_valid(ctx->ro_gpio)) + if (!ctx || !ctx->ro_gpio) return -ENOSYS; - return !gpio_get_value_cansleep(ctx->ro_gpio) ^ - !!(host->caps2 & MMC_CAP2_RO_ACTIVE_HIGH); + if (ctx->override_ro_active_level) + return !gpiod_get_raw_value_cansleep(ctx->ro_gpio) ^ + !!(host->caps2 & MMC_CAP2_RO_ACTIVE_HIGH); + + return gpiod_get_value_cansleep(ctx->ro_gpio); } EXPORT_SYMBOL(mmc_gpio_get_ro); @@ -84,11 +88,14 @@ int mmc_gpio_get_cd(struct mmc_host *host) { struct mmc_gpio *ctx = host->slot.handler_priv; - if (!ctx || !gpio_is_valid(ctx->cd_gpio)) + if (!ctx || !ctx->cd_gpio) return -ENOSYS; - return !gpio_get_value_cansleep(ctx->cd_gpio) ^ - !!(host->caps2 & MMC_CAP2_CD_ACTIVE_HIGH); + if (ctx->override_cd_active_level) + return !gpiod_get_raw_value_cansleep(ctx->cd_gpio) ^ + !!(host->caps2 & MMC_CAP2_CD_ACTIVE_HIGH); + + return gpiod_get_value_cansleep(ctx->cd_gpio); } EXPORT_SYMBOL(mmc_gpio_get_cd); @@ -125,7 +132,8 @@ int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio) if (ret < 0) return ret; - ctx->ro_gpio = gpio; + ctx->override_ro_active_level = true; + ctx->ro_gpio = gpio_to_desc(gpio); return 0; } @@ -201,7 +209,8 @@ int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio, if (irq < 0) host->caps |= MMC_CAP_NEEDS_POLL; - ctx->cd_gpio = gpio; + ctx->override_cd_active_level = true; + ctx->cd_gpio = gpio_to_desc(gpio); return 0; } @@ -219,11 +228,11 @@ void mmc_gpio_free_ro(struct mmc_host *host) struct mmc_gpio *ctx = host->slot.handler_priv; int gpio; - if (!ctx || !gpio_is_valid(ctx->ro_gpio)) + if (!ctx || !ctx->ro_gpio) return; - gpio = ctx->ro_gpio; - ctx->ro_gpio = -EINVAL; + gpio = desc_to_gpio(ctx->ro_gpio); + ctx->ro_gpio = NULL; devm_gpio_free(&host->class_dev, gpio); } @@ -241,7 +250,7 @@ void mmc_gpio_free_cd(struct mmc_host *host) struct mmc_gpio *ctx = host->slot.handler_priv; int gpio; - if (!ctx || !gpio_is_valid(ctx->cd_gpio)) + if (!ctx || !ctx->cd_gpio) return; if (host->slot.cd_irq >= 0) { @@ -249,8 +258,8 @@ void mmc_gpio_free_cd(struct mmc_host *host) host->slot.cd_irq = -EINVAL; } - gpio = ctx->cd_gpio; - ctx->cd_gpio = -EINVAL; + gpio = desc_to_gpio(ctx->cd_gpio); + ctx->cd_gpio = NULL; devm_gpio_free(&host->class_dev, gpio); } |