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

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

Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Link: https://lore.kernel.org/r/1594213888-2780-2-git-send-email-vbadigan@codeaurora.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Veerabhadrarao Badiganti 2020-07-08 18:41:20 +05:30 committed by Ulf Hansson
parent edfa69ded5
commit b5c833b703
1 changed files with 17 additions and 0 deletions
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17
drivers/mmc/host/sdhci-msm.c
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@ -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