Commit b5c833b7 authored by Veerabhadrarao Badiganti's avatar Veerabhadrarao Badiganti Committed by Ulf Hansson
Browse files

mmc: sdhci-msm: Set IO pins in low power state during suspend 



Configure SDHC IO pins with low power configuration when the driver
is in suspend state.

Signed-off-by: default avatarVeerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/1594213888-2780-2-git-send-email-vbadigan@codeaurora.org


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent edfa69de

drivers/mmc/host/sdhci-msm.c

+17 −0
Original line number Diff line number Diff line
@@ -15,6 +15,7 @@ 
#include <linux/iopoll.h>

#include <linux/regulator/consumer.h>

#include <linux/interconnect.h>

#include <linux/pinctrl/consumer.h>



#include "sdhci-pltfm.h"

#include "cqhci.h"
@@ -1353,6 +1354,19 @@ static void sdhci_msm_set_uhs_signaling(struct sdhci_host *host, 
		sdhci_msm_hs400(host, &mmc->ios);

}



static int sdhci_msm_set_pincfg(struct sdhci_msm_host *msm_host, bool level)

{

	struct platform_device *pdev = msm_host->pdev;

	int ret;



	if (level)

		ret = pinctrl_pm_select_default_state(&pdev->dev);

	else

		ret = pinctrl_pm_select_sleep_state(&pdev->dev);



	return ret;

}



static int sdhci_msm_set_vmmc(struct mmc_host *mmc)

{

	if (IS_ERR(mmc->supply.vmmc))
@@ -1596,6 +1610,9 @@ static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq) 
		if (!ret)

			ret = sdhci_msm_set_vqmmc(msm_host, mmc,

					pwr_state & REQ_BUS_ON);

		if (!ret)

			ret = sdhci_msm_set_pincfg(msm_host,

					pwr_state & REQ_BUS_ON);

		if (!ret)

			irq_ack |= CORE_PWRCTL_BUS_SUCCESS;

		else

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