From: Veerabhadrarao Badiganti Date: Mon, 20 Apr 2020 06:20:23 +0000 (+0530) Subject: mmc: sdhci-msm: Enable host capabilities pertains to R1b response X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9d8cb58691f85cef687512262acb2c7109ee4868;p=linux.git mmc: sdhci-msm: Enable host capabilities pertains to R1b response MSM sd host controller is capable of HW busy detection of device busy signaling over DAT0 line. And it requires the R1B response for commands that have this response associated with them. So set the below two host capabilities for qcom SDHC. - MMC_CAP_WAIT_WHILE_BUSY - MMC_CAP_NEED_RSP_BUSY Recent development of the mmc core in regards to this, revealed this as being a potential bug, hence the stable tag. Cc: # v4.19+ Signed-off-by: Veerabhadrarao Badiganti Acked-by: Adrian Hunter Link: https://lore.kernel.org/r/1587363626-20413-2-git-send-email-vbadigan@codeaurora.org Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 09ff7315eb5ee..a8bcb3f16aa40 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 | MMC_CAP_NEED_RSP_BUSY; + pm_runtime_get_noresume(&pdev->dev); pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev);