2020-04-12 16:01:09

by Veerabhadrarao Badiganti

Subject: [PATCH V1 1/4] mmc: sdhci-msm: Enable MMC_CAP_WAIT_WHILE_BUSY host capability

MSM sd host controller is capable of HW busy detection of device busy
singaling over DAT0 line.

So set MMC_CAP_WAIT_WHILE_BUSY capability for qcom sdhc.

Signed-off-by: Veerabhadrarao Badiganti <[email protected]>
---
drivers/mmc/host/sdhci-msm.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 09ff731..013dcea 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2087,6 +2087,8 @@ static int sdhci_msm_probe(struct platform_device *pdev)
goto clk_disable;
}

+ msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
+
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
--
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2020-04-16 10:05:41

by Adrian Hunter

Subject: Re: [PATCH V1 1/4] mmc: sdhci-msm: Enable MMC_CAP_WAIT_WHILE_BUSY host capability

On 12/04/20 6:53 pm, Veerabhadrarao Badiganti wrote:
> MSM sd host controller is capable of HW busy detection of device busy
> singaling over DAT0 line.

singaling -> signaling

>
> So set MMC_CAP_WAIT_WHILE_BUSY capability for qcom sdhc.
>
> Signed-off-by: Veerabhadrarao Badiganti <[email protected]>

Acked-by: Adrian Hunter <[email protected]>

> ---
> drivers/mmc/host/sdhci-msm.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
> index 09ff731..013dcea 100644
> --- a/drivers/mmc/host/sdhci-msm.c
> +++ b/drivers/mmc/host/sdhci-msm.c
> @@ -2087,6 +2087,8 @@ static int sdhci_msm_probe(struct platform_device *pdev)
> goto clk_disable;
> }
>
> + msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
> +
> pm_runtime_get_noresume(&pdev->dev);
> pm_runtime_set_active(&pdev->dev);
> pm_runtime_enable(&pdev->dev);
>