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| author | Geert Uytterhoeven <geert+renesas@linux-m68k.org> | 2014-03-11 10:59:12 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-03-11 10:45:53 +0000 |
| commit | 490c97747d5dc77dfb5826e2823b41d8b2ef7ecc (patch) | |
| tree | 9cfd2ac813c6fc868871907015a821f1c30b9fc1 /drivers/spi/spi-rspi.c | |
| parent | ba824d4971691a7f1f66429e378a08a95fbb5b79 (diff) | |
| download | lwn-490c97747d5dc77dfb5826e2823b41d8b2ef7ecc.tar.gz lwn-490c97747d5dc77dfb5826e2823b41d8b2ef7ecc.zip | |
spi: rspi: Add runtime PM support, using spi core auto_runtime_pm
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-rspi.c')
| -rw-r--r-- | drivers/spi/spi-rspi.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 92bec7e91046..1fb0ad213324 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -33,6 +33,7 @@ #include <linux/dmaengine.h> #include <linux/dma-mapping.h> #include <linux/of_device.h> +#include <linux/pm_runtime.h> #include <linux/sh_dma.h> #include <linux/spi/spi.h> #include <linux/spi/rspi.h> @@ -1111,7 +1112,7 @@ static int rspi_remove(struct platform_device *pdev) struct rspi_data *rspi = platform_get_drvdata(pdev); rspi_release_dma(rspi); - clk_disable_unprepare(rspi->clk); + pm_runtime_disable(&pdev->dev); return 0; } @@ -1242,16 +1243,13 @@ static int rspi_probe(struct platform_device *pdev) goto error1; } - ret = clk_prepare_enable(rspi->clk); - if (ret < 0) { - dev_err(&pdev->dev, "unable to prepare/enable clock\n"); - goto error1; - } + pm_runtime_enable(&pdev->dev); init_waitqueue_head(&rspi->wait); master->bus_num = pdev->id; master->setup = rspi_setup; + master->auto_runtime_pm = true; master->transfer_one = ops->transfer_one; master->prepare_message = rspi_prepare_message; master->unprepare_message = rspi_unprepare_message; @@ -1312,7 +1310,7 @@ static int rspi_probe(struct platform_device *pdev) error3: rspi_release_dma(rspi); error2: - clk_disable_unprepare(rspi->clk); + pm_runtime_disable(&pdev->dev); error1: spi_master_put(master); |