diff options
Diffstat (limited to 'drivers/mmc')
-rw-r--r-- | drivers/mmc/host/sdhci-pxav3.c | 22 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.c | 39 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.h | 4 |
3 files changed, 56 insertions, 9 deletions
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index aca439d3ca83..30132500aa1c 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -309,8 +309,30 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs) __func__, uhs, ctrl_2); } +static void pxav3_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) +{ + struct mmc_host *mmc = host->mmc; + u8 pwr = host->pwr; + + sdhci_set_power(host, mode, vdd); + + if (host->pwr == pwr) + return; + + if (host->pwr == 0) + vdd = 0; + + if (!IS_ERR(mmc->supply.vmmc)) { + spin_unlock_irq(&host->lock); + mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); + spin_lock_irq(&host->lock); + } +} + static const struct sdhci_ops pxav3_sdhci_ops = { .set_clock = sdhci_set_clock, + .set_power = pxav3_set_power, .platform_send_init_74_clocks = pxav3_gen_init_74_clocks, .get_max_clock = sdhci_pltfm_clk_get_max_clock, .set_bus_width = sdhci_set_bus_width, diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 8670f162dec7..6bd3d1794966 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1210,10 +1210,24 @@ clock_set: } EXPORT_SYMBOL_GPL(sdhci_set_clock); -static void sdhci_set_power(struct sdhci_host *host, unsigned char mode, - unsigned short vdd) +static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) { struct mmc_host *mmc = host->mmc; + + spin_unlock_irq(&host->lock); + mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); + spin_lock_irq(&host->lock); + + if (mode != MMC_POWER_OFF) + sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL); + else + sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); +} + +void sdhci_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) +{ u8 pwr = 0; if (mode != MMC_POWER_OFF) { @@ -1245,7 +1259,6 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode, sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON) sdhci_runtime_pm_bus_off(host); - vdd = 0; } else { /* * Spec says that we should clear the power reg before setting @@ -1276,12 +1289,20 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned char mode, if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER) mdelay(10); } +} +EXPORT_SYMBOL_GPL(sdhci_set_power); - if (!IS_ERR(mmc->supply.vmmc)) { - spin_unlock_irq(&host->lock); - mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd); - spin_lock_irq(&host->lock); - } +static void __sdhci_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd) +{ + struct mmc_host *mmc = host->mmc; + + if (host->ops->set_power) + host->ops->set_power(host, mode, vdd); + else if (!IS_ERR(mmc->supply.vmmc)) + sdhci_set_power_reg(host, mode, vdd); + else + sdhci_set_power(host, mode, vdd); } /*****************************************************************************\ @@ -1431,7 +1452,7 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios) } } - sdhci_set_power(host, ios->power_mode, ios->vdd); + __sdhci_set_power(host, ios->power_mode, ios->vdd); if (host->ops->platform_send_init_74_clocks) host->ops->platform_send_init_74_clocks(host, ios->power_mode); diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 3bd28033dbd9..0f39f4f84d10 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -529,6 +529,8 @@ struct sdhci_ops { #endif void (*set_clock)(struct sdhci_host *host, unsigned int clock); + void (*set_power)(struct sdhci_host *host, unsigned char mode, + unsigned short vdd); int (*enable_dma)(struct sdhci_host *host); unsigned int (*get_max_clock)(struct sdhci_host *host); @@ -660,6 +662,8 @@ static inline bool sdhci_sdio_irq_enabled(struct sdhci_host *host) } void sdhci_set_clock(struct sdhci_host *host, unsigned int clock); +void sdhci_set_power(struct sdhci_host *host, unsigned char mode, + unsigned short vdd); void sdhci_set_bus_width(struct sdhci_host *host, int width); void sdhci_reset(struct sdhci_host *host, u8 mask); void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing); |