[PATCH v3 3/4] spi: mediatek: add PM clk_prepare_enable fail flow

[Leilk Liu]

This patch adds PM clk_prepare_enable fail flow.

Signed-off-by: Leilk Liu <leilk....@mediatek.com>
---
 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

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