On 7 November 2014 01:48, Wenyou Yang <wenyou.yang@xxxxxxxxx> wrote:
> Amend the atmel mci pin controller to optionally take a pin control
> handle and set the state of the pins to:
> - "default" on boot, resume and before performing an transfer.
> - "sleep" on suspend().
>
> This should make it possible to optimize energy usage for the pins
> both for the suspend/resume cycle.
>
> Signed-off-by: Wenyou Yang <wenyou.yang@xxxxxxxxx>
Thanks! Applied for next.
Kind regards
Uffe
> ---
> Hi Ulf,
>
> Thanks a lot.
>
> According to your advice, remove pinctrl_pm_select_default_state(&pdev->dev) from the _probe function.
>
> Best Regards,
> Wenyou Yang
>
> drivers/mmc/host/atmel-mci.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
> index 4df1599..a7b59ba 100644
> --- a/drivers/mmc/host/atmel-mci.c
> +++ b/drivers/mmc/host/atmel-mci.c
> @@ -39,6 +39,7 @@
> #include <linux/atmel_pdc.h>
> #include <linux/pm.h>
> #include <linux/pm_runtime.h>
> +#include <linux/pinctrl/consumer.h>
>
> #include <asm/cacheflush.h>
> #include <asm/io.h>
> @@ -2568,6 +2569,8 @@ static int atmci_runtime_suspend(struct device *dev)
>
> clk_disable_unprepare(host->mck);
>
> + pinctrl_pm_select_sleep_state(dev);
> +
> return 0;
> }
>
> @@ -2575,6 +2578,8 @@ static int atmci_runtime_resume(struct device *dev)
> {
> struct atmel_mci *host = dev_get_drvdata(dev);
>
> + pinctrl_pm_select_default_state(dev);
> +
> return clk_prepare_enable(host->mck);
> }
> #endif
> --
> 1.7.9.5
>
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