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From: Shaik Sajida Bhanu <sbhanu@codeaurora.org>
To: ulf.hansson@linaro.org, adrian.hunter@intel.com
Cc: asutoshd@codeaurora.org, stummala@codeaurora.org,
	vbadigan@codeaurora.org, sayalil@codeaurora.org,
	cang@codeaurora.org, rampraka@codeaurora.org,
	linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, agross@kernel.org,
	bjorn.andersson@linaro.org,
	Shaik Sajida Bhanu <sbhanu@codeaurora.org>
Subject: [PATCH V1] mmc: sdhci-msm: Add system suspend/resume callbacks
Date: Tue, 21 Jan 2020 20:00:22 +0530	[thread overview]
Message-ID: <1579617022-13031-1-git-send-email-sbhanu@codeaurora.org> (raw)

Add system suspend/resume callbacks to sdhci-msm platform driver.

Signed-off-by: Shaik Sajida Bhanu <sbhanu@codeaurora.org>
---
 drivers/mmc/host/sdhci-msm.c | 47 ++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 45 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 71f29ba..4984857 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -2028,9 +2028,52 @@ static __maybe_unused int sdhci_msm_runtime_resume(struct device *dev)
 	return 0;
 }
 
+static int sdhci_msm_suspend(struct device *dev)
+{
+	struct sdhci_host *host = dev_get_drvdata(dev);
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	int ret = 0;
+
+	if (host->mmc->caps2 & MMC_CAP2_CQE) {
+		ret = cqhci_suspend(host->mmc);
+		if (ret)
+			return ret;
+	}
+
+	disable_irq(msm_host->pwr_irq);
+	ret = sdhci_suspend_host(host);
+	if (ret)
+		return ret;
+
+	return sdhci_msm_runtime_suspend(dev);
+}
+
+static int sdhci_msm_resume(struct device *dev)
+{
+	struct sdhci_host *host = dev_get_drvdata(dev);
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	int ret = 0;
+
+	ret = sdhci_msm_runtime_resume(dev);
+	if (ret)
+		return ret;
+
+	ret = sdhci_resume_host(host);
+	if (ret < 0)
+		return ret;
+	enable_irq(msm_host->pwr_irq);
+
+	if (host->mmc->caps2 & MMC_CAP2_CQE)
+		ret = cqhci_resume(host->mmc);
+
+	return ret;
+}
+
 static const struct dev_pm_ops sdhci_msm_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
-				pm_runtime_force_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(sdhci_msm_suspend,
+				sdhci_msm_resume)
 	SET_RUNTIME_PM_OPS(sdhci_msm_runtime_suspend,
 			   sdhci_msm_runtime_resume,
 			   NULL)
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member 
of Code Aurora Forum, hosted by The Linux Foundation


             reply	other threads:[~2020-01-21 14:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-21 14:30 Shaik Sajida Bhanu [this message]
2020-01-21 23:25 ` [PATCH V1] mmc: sdhci-msm: Add system suspend/resume callbacks Matthias Kaehlcke
2020-01-22  7:22 ` Adrian Hunter
2020-01-22 16:57 ` Stephen Boyd
2020-02-06 15:44   ` sbhanu
2020-01-25 15:28 ` kbuild test robot
2020-01-25 15:28   ` kbuild test robot

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