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authorHeiner Kallweit2015-09-03 22:40:11 +0200
committerMark Brown2015-09-14 19:57:31 +0200
commit4fcd9b9e06d43b93d00bf02c767d578e7cf8b25c (patch)
treec1c0f2d28552eb2e81f81ae9da27b70656005313 /drivers/spi/spi-s3c64xx.c
parentspi: s3c64xx: extend driver to make full use of runtime PM autosuspend (diff)
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spi: s3c64xx: simplify suspend / resume handlers
The runtime PM suspend / resume handlers take care of the enabling/ disabling the clocks already. Therefore replace the duplicated clock handling with pm_runtime_force_suspend/resume. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-s3c64xx.c')
-rw-r--r--drivers/spi/spi-s3c64xx.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index d117fa638ee3..4e5931cabfa2 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1246,10 +1246,9 @@ static int s3c64xx_spi_suspend(struct device *dev)
if (ret)
return ret;
- if (!pm_runtime_suspended(dev)) {
- clk_disable_unprepare(sdd->clk);
- clk_disable_unprepare(sdd->src_clk);
- }
+ ret = pm_runtime_force_suspend(dev);
+ if (ret < 0)
+ return ret;
sdd->cur_speed = 0; /* Output Clock is stopped */
@@ -1261,14 +1260,14 @@ static int s3c64xx_spi_resume(struct device *dev)
struct spi_master *master = dev_get_drvdata(dev);
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
+ int ret;
if (sci->cfg_gpio)
sci->cfg_gpio();
- if (!pm_runtime_suspended(dev)) {
- clk_prepare_enable(sdd->src_clk);
- clk_prepare_enable(sdd->clk);
- }
+ ret = pm_runtime_force_resume(dev);
+ if (ret < 0)
+ return ret;
s3c64xx_spi_hwinit(sdd, sdd->port_id);