From 13da5a0b72ea66c74483966ff91718ae0a9c0703 Mon Sep 17 00:00:00 2001 From: Leilk Liu Date: Mon, 24 Aug 2015 11:45:17 +0800 Subject: [PATCH] spi: mediatek: add PM clk_prepare_enable fail flow This patch adds PM clk_prepare_enable fail flow. Signed-off-by: Leilk Liu Signed-off-by: Mark Brown --- 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 81b75b94145c..14112a5e63b9 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; - return clk_prepare_enable(mdata->spi_clk); + ret = clk_prepare_enable(mdata->spi_clk); + if (ret < 0) { + dev_err(dev, "failed to enable spi_clk (%d)\n", ret); + return ret; + } + + return 0; } #endif /* CONFIG_PM */