On Tue, May 07, 2013 at 01:06:38, Mark Brown wrote:
> Since commit ab78029 (drivers/pinctrl: grab default handles from device
> core) we can rely on device core for handling pinctrl so remove
> devm_pinctrl_get_select_default() from the driver.
NACK.
There are cases where driver('s) needs to place pin-mux's to sleep on suspend
& default/idle on resume. For such cases Pinctrl needs to be handled inside
the driver. Example [1].
I will be submitting a patch to enhance the existing pinctrl support for
spi omap2 shortly which does above work.
Regards
Gururaja
[1]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/drivers/spi/spi-pl022.c
pl022_suspend_resources() & pl022_resume_resources()
>
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/spi/spi-omap2-mcspi.c | 7 -------
> 1 file changed, 7 deletions(-)
>
> diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
> index 893c3d7..3777bd5 100644
> --- a/drivers/spi/spi-omap2-mcspi.c
> +++ b/drivers/spi/spi-omap2-mcspi.c
> @@ -38,7 +38,6 @@
> #include <linux/pm_runtime.h>
> #include <linux/of.h>
> #include <linux/of_device.h>
> -#include <linux/pinctrl/consumer.h>
>
> #include <linux/spi/spi.h>
>
> @@ -1170,7 +1169,6 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
> static int bus_num = 1;
> struct device_node *node = pdev->dev.of_node;
> const struct of_device_id *match;
> - struct pinctrl *pinctrl;
>
> master = spi_alloc_master(&pdev->dev, sizeof *mcspi);
> if (master == NULL) {
> @@ -1268,11 +1266,6 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
> if (status < 0)
> goto dma_chnl_free;
>
> - pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
> - if (IS_ERR(pinctrl))
> - dev_warn(&pdev->dev,
> - "pins are not configured from the driver\n");
> -
> pm_runtime_use_autosuspend(&pdev->dev);
> pm_runtime_set_autosuspend_delay(&pdev->dev, SPI_AUTOSUSPEND_TIMEOUT);
> pm_runtime_enable(&pdev->dev);
> --
> 1.7.10.4
>
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Regards,
Gururaja
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