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 <m-karicheri2@ti.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index b6185dc..85ce548 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -704,7 +704,7 @@
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_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 @@
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 @@
/* 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 @@
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);