[PATCH v3 3/4] spi: mediatek: add PM clk_prepare_enable fail flow
From: Leilk Liu <hidden>
Date: 2015-08-24 03:45:51
Also in:
linux-devicetree, linux-mediatek, linux-spi, lkml
Subsystem:
spi subsystem, the rest · Maintainers:
Mark Brown, Linus Torvalds
This patch adds PM clk_prepare_enable fail flow. Signed-off-by: Leilk Liu <redacted> --- drivers/spi/spi-mt65xx.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index f81618c..e14f583 100644
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c@@ -665,8 +665,10 @@ static int mtk_spi_resume(struct device *dev) if (!pm_runtime_suspended(dev)) { ret = clk_prepare_enable(mdata->spi_clk); - if (ret < 0) + if (ret < 0) { + dev_err(dev, "failed to enable spi_clk (%d)\n", ret); return ret; + } } ret = spi_master_resume(master);
@@ -692,8 +694,15 @@ static int mtk_spi_runtime_resume(struct device *dev) { struct spi_master *master = dev_get_drvdata(dev); struct mtk_spi *mdata = spi_master_get_devdata(master); + int ret; + + ret = clk_prepare_enable(mdata->spi_clk); + if (ret < 0) { + dev_err(dev, "failed to enable spi_clk (%d)\n", ret); + return ret; + } - return clk_prepare_enable(mdata->spi_clk); + return 0; } #endif /* CONFIG_PM */
--
1.8.1.1.dirty