From: Matthias Kaehlcke <mka@chromium.org>
To: Shaik Sajida Bhanu <sbhanu@codeaurora.org>
Cc: ulf.hansson@linaro.org, adrian.hunter@intel.com,
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
Subject: Re: [PATCH V1] mmc: sdhci-msm: Add system suspend/resume callbacks
Date: Tue, 21 Jan 2020 15:25:58 -0800 [thread overview]
Message-ID: <20200121232558.GV89495@google.com> (raw)
In-Reply-To: <1579617022-13031-1-git-send-email-sbhanu@codeaurora.org>
Hi Shaik,
On Tue, Jan 21, 2020 at 08:00:22PM +0530, Shaik Sajida Bhanu wrote:
> 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;
initialization is not needed.
> +
> + 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;
initialization is not needed.
> + 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)
next prev parent reply other threads:[~2020-01-21 23:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 14:30 [PATCH V1] mmc: sdhci-msm: Add system suspend/resume callbacks Shaik Sajida Bhanu
2020-01-21 23:25 ` Matthias Kaehlcke [this message]
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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