From 2a2d7efe77f771e2776de6b360be264de12818d8 Mon Sep 17 00:00:00 2001 From: Siva Durga Prasad Paladugu Date: Thu, 19 Apr 2018 12:37:04 +0530 Subject: [PATCH] mmc: sdhci: Add support for disabling clock This patch adds support to disable clock if clk_disable was set and then enable or set clock if the clock was changed or clock was disabled when clock needs to be enabled. Signed-off-by: Siva Durga Prasad Paladugu Signed-off-by: Michal Simek --- drivers/mmc/sdhci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index c2ae3e3..d7acab1 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -439,6 +439,9 @@ static int sdhci_set_ios(struct mmc *mmc) if (mmc->clock != host->clock) sdhci_set_clock(mmc, mmc->clock); + if (mmc->clk_disable) + sdhci_set_clock(mmc, 0); + /* Set bus width */ ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); if (mmc->bus_width == 8) {