linux-kernel - [PATCH] mmc: dw_mmc: Don't disable vmmc if keeping power in suspend

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Message-Id: <1375846138-15839-1-git-send-email-dbasehore@chromium.org>
Date:	Tue,  6 Aug 2013 20:28:58 -0700
From:	Derek Basehore <dbasehore@...omium.org>
To:	Seungwon Jeon <tgih.jun@...sung.com>
Cc:	Chris Ball <cjb@...top.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, Derek Basehore <dbasehore@...omium.org>
Subject: [PATCH] mmc: dw_mmc: Don't disable vmmc if keeping power in suspend

If we keep power for suspend on a host for dw_mmc, don't disable vmmc-supply
regulator when suspending the host.

Signed-off-by: Derek Basehore <dbasehore@...omium.org>
Reviewed-by: Doug Anderson <dianders@...omium.org>
---
 drivers/mmc/host/dw_mmc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index ee5f167..bf82d7c 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2474,7 +2474,7 @@ int dw_mci_suspend(struct dw_mci *host)
 		}
 	}
 
-	if (host->vmmc)
+	if (host->vmmc && !(host->pdata->pm_caps & MMC_PM_KEEP_POWER))
 		regulator_disable(host->vmmc);
 
 	return 0;
@@ -2485,7 +2485,7 @@ int dw_mci_resume(struct dw_mci *host)
 {
 	int i, ret;
 
-	if (host->vmmc) {
+	if (host->vmmc && !(host->pdata->pm_caps & MMC_PM_KEEP_POWER)) {
 		ret = regulator_enable(host->vmmc);
 		if (ret) {
 			dev_err(host->dev,
-- 
1.8.3

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