[v2,17/26] mmc: disable the mmc clock during power off

Message ID 1506004213-22620-18-git-send-email-jjhiblot@ti.com
State New
Headers show
Series
  • Untitled series #4334
Related show

Commit Message

Jean-Jacques Hiblot Sept. 21, 2017, 2:30 p.m.
From: Kishon Vijay Abraham I <kishon@ti.com>

There is no point in having the mmc clock enabled during
power off. Disable the mmc clock. This is similar to how it's
programmed in Linux Kernel.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 drivers/mmc/mmc.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 1c941a2..1f9730e 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1971,6 +1971,7 @@  static int mmc_power_on(struct mmc *mmc)
 
 static int mmc_power_off(struct mmc *mmc)
 {
+	mmc_set_clock(mmc, 1, true);
 #if CONFIG_IS_ENABLED(DM_MMC) && CONFIG_IS_ENABLED(DM_REGULATOR)
 	if (mmc->vmmc_supply) {
 		int ret = regulator_set_enable(mmc->vmmc_supply, false);