[PATCH 1/9] sdhci-1: add host's own set_power func to support the controller that used it's own power mechanism

[Richard Zhu]

FSL's eSDHC controllers don't have the STANDARD POWER register in
the IC design, add the set_power api to support the FSL's eSDHC.

Signed-off-by: Richard Zhu <r65037 at freescale.com>
---
 drivers/mmc/host/sdhci.c |    5 +++++
 drivers/mmc/host/sdhci.h |    1 +
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 7855121..2a93c27 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1036,6 +1036,11 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power)
 {
 	u8 pwr;
 
+	if (host->ops->set_power) {
+		host->ops->set_power(host, power);
+		return;
+	}
+
 	if (power == (unsigned short)-1)
 		pwr = 0;
 	else {
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 036cfae..d420b4e 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -316,6 +316,7 @@ struct sdhci_ops {
 #endif
 
 	void	(*set_clock)(struct sdhci_host *host, unsigned int clock);
+	void	(*set_power)(struct sdhci_host *host, unsigned int power);
 
 	int		(*enable_dma)(struct sdhci_host *host);
 	unsigned int	(*get_max_clock)(struct sdhci_host *host);
-- 
1.7.0