From a3f24c0dbd0b9a7624d077b3c1841dde267aaa6c Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 12 Jun 2012 19:33:30 +0200 Subject: [PATCH] i2c: stu300: use clk_prepare/unprepare Make sure we prepare/unprepare the clock for the ST U300 I2C driver as is required by the clk API especially if you use common clock. Signed-off-by: Linus Walleij Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-stu300.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c index 4d44af181f37..79b785150c15 100644 --- a/drivers/i2c/busses/i2c-stu300.c +++ b/drivers/i2c/busses/i2c-stu300.c @@ -924,7 +924,7 @@ stu300_probe(struct platform_device *pdev) dev->speed = scl_frequency; - clk_enable(dev->clk); + clk_prepare_enable(dev->clk); ret = stu300_init_hw(dev); clk_disable(dev->clk); @@ -960,6 +960,7 @@ stu300_probe(struct platform_device *pdev) err_add_adapter: err_init_hw: + clk_unprepare(dev->clk); free_irq(dev->irq, dev); err_no_irq: iounmap(dev->virtbase); @@ -1016,6 +1017,7 @@ stu300_remove(struct platform_device *pdev) free_irq(dev->irq, dev); iounmap(dev->virtbase); release_mem_region(dev->phybase, dev->physize); + clk_unprepare(dev->clk); clk_put(dev->clk); platform_set_drvdata(pdev, NULL); kfree(dev);