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
next reply other threads:[~2020-01-21 14:31 UTC|newest]
Thread overview: 6+ 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
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