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Commit 19dbfdd3 authored by Dong Aisheng's avatar Dong Aisheng Committed by Ulf Hansson
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mmc: sdhci-esdhci-imx: re-initialize hw state after resume 



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: default avatarDong Aisheng <aisheng.dong@nxp.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 2b16cf32

drivers/mmc/host/sdhci-esdhc-imx.c

+2 −5
Original line number Diff line number Diff line
@@ -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);

}