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authorAdrian Hunter <adrian.hunter@intel.com>2011-08-29 16:42:12 +0300
committerChris Ball <cjb@laptop.org>2011-10-26 16:32:06 -0400
commit20758b66dce76af0527363186f44b464d83e5666 (patch)
tree4502296e84da9dec326a8fcad054d7d956a67585 /drivers/mmc/host/sdhci.c
parentb2499518b5ad7e28bb3ed348fd3f370eeb1e36c0 (diff)
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>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
-rw-r--r--drivers/mmc/host/sdhci.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0e02cc1df12..d66a7a11a4f 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,