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From: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
To: adrian.hunter@intel.com, ulf.hansson@linaro.org
Cc: bjorn.andersson@linaro.org, linux-mmc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Veerabhadrarao Badiganti <vbadigan@codeaurora.org>,
	<stable@vger.kernel.org>, Andy Gross <agross@kernel.org>
Subject: [PATCH V2 1/3] mmc: sdhci-msm: Enable host capabilities pertains to R1b response
Date: Mon, 20 Apr 2020 11:50:23 +0530	[thread overview]
Message-ID: <1587363626-20413-2-git-send-email-vbadigan@codeaurora.org> (raw)
In-Reply-To: <1587363626-20413-1-git-send-email-vbadigan@codeaurora.org>

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

Cc: <stable@vger.kernel.org> # v4.19+
Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/host/sdhci-msm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 09ff731..d826e9b 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2087,6 +2087,9 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 		goto clk_disable;
 	}
 
+	msm_host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
+	msm_host->mmc->caps |= MMC_CAP_NEED_RSP_BUSY;
+
 	pm_runtime_get_noresume(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc., is a member of Code Aurora Forum, a Linux Foundation Collaborative Project

  reply	other threads:[~2020-04-20  6:21 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-20  6:20 [PATCH V2 0/3] Minor fixes to sdhci-msm Veerabhadrarao Badiganti
2020-04-20  6:20 ` Veerabhadrarao Badiganti [this message]
2020-04-20  6:20 ` [PATCH V2 2/3] mmc: sdhci-msm: Set SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 quirk Veerabhadrarao Badiganti
2020-04-20  6:20 ` [PATCH V2 3/3] mmc: sdhci-msm: Enable ADMA length mismatch error interrupt Veerabhadrarao Badiganti
2020-04-20  8:01 ` [PATCH V2 0/3] Minor fixes to sdhci-msm Ulf Hansson

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