From: Todd Poynor <toddpoynor@google.com>
Date: Fri, 19 Nov 2010 04:24:24 +0000 (-0800)
Subject: tegra: SDHCI: disable clock at suspend
X-Git-Tag: firefly_0821_release~9833^2~107
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a4e97fb2370ee832e0e9836fc46b3645056a41cf;p=firefly-linux-kernel-4.4.55.git

tegra: SDHCI: disable clock at suspend

Ensure sdmmc<n> clock is disabled at suspend, and that the subsequent
resume will perform clock enable processing, which is required if LP0
suspend is in effect.

Change-Id: Ia98698f13cc557040e5fdbc523a97effb63ac63b
Signed-off-by: Todd Poynor <toddpoynor@google.com>
---

diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 19f522d3a59f..2cb479987b8d 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -206,6 +206,7 @@ static int tegra_sdhci_suspend(struct platform_device *pdev, pm_message_t state)
 	if (ret)
 		pr_err("%s: failed, error = %d\n", __func__, ret);
 
+	tegra_sdhci_enable_clock(host, 0);
 	return ret;
 }