On 08/09/16 10:47, Adrian Hunter wrote:
> On 16/06/16 15:35, Pramod Gurav wrote:
>> Provides runtime PM callbacks to enable and disable clock resources
>> when idle. Also support system PM callbacks to be called during system
>> suspend and resume.
>>
>> Signed-off-by: Pramod Gurav <pramod.gurav@xxxxxxxxxx>
>
> Can we get some Tested/Reviewed/Acked-by from people using this driver?
Oops wrong version of the patch. Please disregard the comment for this
patch, and see instead the later patch.
>
>> ---
>> drivers/mmc/host/sdhci-msm.c | 57 ++++++++++++++++++++++++++++++++++++++++++++
>> 1 file changed, 57 insertions(+)
>>
>> diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
>> index 0653fe7..f4394c8 100644
>> --- a/drivers/mmc/host/sdhci-msm.c
>> +++ b/drivers/mmc/host/sdhci-msm.c
>> @@ -18,6 +18,7 @@
>> #include <linux/of_device.h>
>> #include <linux/delay.h>
>> #include <linux/mmc/mmc.h>
>> +#include <linux/pm_runtime.h>
>> #include <linux/slab.h>
>>
>> #include "sdhci-pltfm.h"
>> @@ -549,6 +550,11 @@ static int sdhci_msm_probe(struct platform_device *pdev)
>> if (ret)
>> goto clk_disable;
>>
>> + platform_set_drvdata(pdev, msm_host);
>> +
>> + pm_runtime_set_active(&pdev->dev);
>> + pm_runtime_enable(&pdev->dev);
>> +
>> return 0;
>>
>> clk_disable:
>> @@ -580,12 +586,63 @@ static int sdhci_msm_remove(struct platform_device *pdev)
>> return 0;
>> }
>>
>> +static int sdhci_msm_runtime_suspend(struct device *dev)
>> +{
>> + struct sdhci_msm_host *msm_host = dev_get_drvdata(dev);
>> +
>> + clk_disable_unprepare(msm_host->clk);
>> + clk_disable_unprepare(msm_host->pclk);
>> +
>> + return 0;
>> +}
>> +
>> +static int sdhci_msm_runtime_resume(struct device *dev)
>> +{
>> + struct sdhci_msm_host *msm_host = dev_get_drvdata(dev);
>> + int ret;
>> +
>> + ret = clk_prepare_enable(msm_host->clk);
>> + if (ret) {
>> + dev_err(dev, "clk_enable failed: %d\n", ret);
>> + return ret;
>> + }
>> + ret = clk_prepare_enable(msm_host->pclk);
>> + if (ret) {
>> + dev_err(dev, "clk_enable failed: %d\n", ret);
>> + clk_disable_unprepare(msm_host->clk);
>> + return ret;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static int sdhci_msm_suspend(struct device *dev)
>> +{
>> + pm_runtime_force_suspend(dev);
>> +
>> + return 0;
>> +}
>> +
>> +static int sdhci_msm_resume(struct device *dev)
>> +{
>> + pm_runtime_force_resume(dev);
>> +
>> + return 0;
>> +}
>> +
>> +static const struct dev_pm_ops sdhci_msm_pm_ops = {
>> + SET_LATE_SYSTEM_SLEEP_PM_OPS(sdhci_msm_suspend, sdhci_msm_resume)
>> + SET_RUNTIME_PM_OPS(sdhci_msm_runtime_suspend, sdhci_msm_runtime_resume,
>> + NULL)
>> +};
>> +
>> static struct platform_driver sdhci_msm_driver = {
>> .probe = sdhci_msm_probe,
>> .remove = sdhci_msm_remove,
>> .driver = {
>> .name = "sdhci_msm",
>> .of_match_table = sdhci_msm_dt_match,
>> + .pm = &sdhci_msm_pm_ops,
>> },
>> };
>>
>>
>
>
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