davinci_wdt: 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: Wim Van Sebroeck <wim@iguana.be>

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 8791879e5181d08ee8218cb9c0a1df20acfe1f8c..6000aea7e2e1473d38fe4eff7ea3ae67749acf18 100644 (file)
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -208,7 +208,7 @@ static int davinci_wdt_probe(struct platform_device *pdev)
        if (WARN_ON(IS_ERR(wdt_clk)))
                return PTR_ERR(wdt_clk);
 
-       clk_enable(wdt_clk);
+       clk_prepare_enable(wdt_clk);
 
        if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT)
                heartbeat = DEFAULT_HEARTBEAT;
@@ -256,7 +256,7 @@ static int davinci_wdt_remove(struct platform_device *pdev)
                wdt_mem = NULL;
        }
 
-       clk_disable(wdt_clk);
+       clk_disable_unprepare(wdt_clk);
        clk_put(wdt_clk);
 
        return 0;