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mmc: sdhci-esdhci-imx: re-initialize hw state after resume

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sdhci_esdhc_imx_hwinit() includes all basic hw intialization.
Calling it after resume to re-initialize hw in case its state
is already lost in low power mode.

Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Dong Aisheng 2016-07-12 15:46:23 +08:00 committed by Ulf Hansson
parent 2b16cf326b
commit 19dbfdd3d5
1 changed files with 2 additions and 5 deletions
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7
drivers/mmc/host/sdhci-esdhc-imx.c
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@ -1297,12 +1297,9 @@ static int sdhci_esdhc_suspend(struct device *dev)
static int sdhci_esdhc_resume(struct device *dev)
{
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
/* restore watermark setting in case it's lost in low power mode */
if (esdhc_is_usdhc(imx_data))
writel(ESDHC_WTMK_DEFAULT_VAL, host->ioaddr + ESDHC_WTMK_LVL);
/* re-initialize hw state in case it's lost in low power mode */
sdhci_esdhc_imx_hwinit(host);
return sdhci_pltfm_resume(dev);
}