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The clock is optional and driver behavior is identical as before this patch if not provided. Signed-off-by: Tomasz Figa Signed-off-by: Paweł Chmiel Reviewed-by: Miquel Raynal Signed-off-by: Jonathan Bakker --- drivers/mtd/nand/onenand/onenand_samsung.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mtd/nand/onenand/onenand_samsung.c b/drivers/mtd/nand/onenand/onenand_samsung.c index a3ef4add865a..62014f8d27b6 100644 --- a/drivers/mtd/nand/onenand/onenand_samsung.c +++ b/drivers/mtd/nand/onenand/onenand_samsung.c @@ -11,6 +11,7 @@ * S5PC110: use DMA */ +#include #include #include #include @@ -122,6 +123,7 @@ enum soc_type { struct s3c_onenand { struct mtd_info *mtd; struct platform_device *pdev; + struct clk *clk_bus; enum soc_type type; void __iomem *ctrl_base; void __iomem *chip_base; @@ -914,6 +916,10 @@ static int s3c_onenand_probe(struct platform_device *pdev) } } + onenand->clk_bus = devm_clk_get(&pdev->dev, "bus"); + if (!IS_ERR(onenand->clk_bus)) + clk_prepare_enable(onenand->clk_bus); + err = onenand_scan(mtd, 1); if (err) return err; @@ -945,6 +951,8 @@ static int s3c_onenand_remove(struct platform_device *pdev) struct mtd_info *mtd = platform_get_drvdata(pdev); onenand_release(mtd); + if (!IS_ERR(onenand->clk_bus)) + clk_disable_unprepare(onenand->clk_bus); return 0; }