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| author | Adrian Hunter <adrian.hunter@intel.com> | 2011-08-29 16:42:12 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 16:32:06 -0400 |
| commit | 20758b66dce76af0527363186f44b464d83e5666 (patch) | |
| tree | 4502296e84da9dec326a8fcad054d7d956a67585 | |
| parent | b2499518b5ad7e28bb3ed348fd3f370eeb1e36c0 (diff) | |
| download | op-kernel-dev-20758b66dce76af0527363186f44b464d83e5666.zip op-kernel-dev-20758b66dce76af0527363186f44b464d83e5666.tar.gz | |
mmc: sdhci: add eMMC hardware reset support
Add an SDHCI operation for hardware reset and connect it to the
host controller operation.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 9 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 0e02cc1..d66a7a1 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1471,6 +1471,14 @@ static int sdhci_get_ro(struct mmc_host *mmc) return 0; } +static void sdhci_hw_reset(struct mmc_host *mmc) +{ + struct sdhci_host *host = mmc_priv(mmc); + + if (host->ops && host->ops->hw_reset) + host->ops->hw_reset(host); +} + static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable) { struct sdhci_host *host; @@ -1805,6 +1813,7 @@ static const struct mmc_host_ops sdhci_ops = { .request = sdhci_request, .set_ios = sdhci_set_ios, .get_ro = sdhci_get_ro, + .hw_reset = sdhci_hw_reset, .enable_sdio_irq = sdhci_enable_sdio_irq, .start_signal_voltage_switch = sdhci_start_signal_voltage_switch, .execute_tuning = sdhci_execute_tuning, diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 745c42f..7bd919c 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -273,7 +273,7 @@ struct sdhci_ops { void (*platform_reset_enter)(struct sdhci_host *host, u8 mask); void (*platform_reset_exit)(struct sdhci_host *host, u8 mask); int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs); - + void (*hw_reset)(struct sdhci_host *host); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS |
