From 2bdbfa9c4a14f0015d1e189b17175a989d7c2a40 Mon Sep 17 00:00:00 2001 From: Murali Karicheri Date: Thu, 30 Aug 2012 18:10:36 +0000 Subject: [PATCH] i2c: davinci: preparation for switch to common clock framework As a first step towards migrating davinci platforms to use common clock framework, replace all instances of clk_enable() with clk_prepare_enable() and clk_disable() with clk_disable_unprepare(). Until the platform is switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just adds a might_sleep() call and would work without any issues. This will make it easy later to switch to common clk based implementation of clk driver from DaVinci specific driver. Signed-off-by: Murali Karicheri Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-davinci.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c index b6185dccdf4a..85ce548ff152 100644 --- a/drivers/i2c/busses/i2c-davinci.c +++ b/drivers/i2c/busses/i2c-davinci.c @@ -704,7 +704,7 @@ static int davinci_i2c_probe(struct platform_device *pdev) r = -ENODEV; goto err_free_mem; } - clk_enable(dev->clk); + clk_prepare_enable(dev->clk); dev->base = ioremap(mem->start, resource_size(mem)); if (!dev->base) { @@ -751,7 +751,7 @@ err_free_irq: err_unuse_clocks: iounmap(dev->base); err_mem_ioremap: - clk_disable(dev->clk); + clk_disable_unprepare(dev->clk); clk_put(dev->clk); dev->clk = NULL; err_free_mem: @@ -775,7 +775,7 @@ static int davinci_i2c_remove(struct platform_device *pdev) i2c_del_adapter(&dev->adapter); put_device(&pdev->dev); - clk_disable(dev->clk); + clk_disable_unprepare(dev->clk); clk_put(dev->clk); dev->clk = NULL; @@ -797,7 +797,7 @@ static int davinci_i2c_suspend(struct device *dev) /* put I2C into reset */ davinci_i2c_reset_ctrl(i2c_dev, 0); - clk_disable(i2c_dev->clk); + clk_disable_unprepare(i2c_dev->clk); return 0; } @@ -807,7 +807,7 @@ static int davinci_i2c_resume(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct davinci_i2c_dev *i2c_dev = platform_get_drvdata(pdev); - clk_enable(i2c_dev->clk); + clk_prepare_enable(i2c_dev->clk); /* take I2C out of reset */ davinci_i2c_reset_ctrl(i2c_dev, 1);