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[1/1] wdt:clk: preparation for switch to common clock framework

Message ID 1347483283-9491-2-git-send-email-m-karicheri2@ti.com (mailing list archive)
State Awaiting Upstream
Headers show

Commit Message

Murali Karicheri Sept. 12, 2012, 8:54 p.m. UTC 
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>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
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Patch

diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index c8c5c80..eb44b03 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -208,7 +208,7 @@  static int __devinit 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 __devexit 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;