VIDEO: amba clcd: don't disable an already disabled clock

[pandora-kernel.git] / drivers / video / amba-clcd.c

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index afe21e6..1c2c683 100644 (file)
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -80,7 +80,10 @@ static void clcdfb_disable(struct clcd_fb *fb)
        /*
         * Disable CLCD clock source.
         */
-       clk_disable(fb->clk);
+       if (fb->clk_enabled) {
+               fb->clk_enabled = false;
+               clk_disable(fb->clk);
+       }
 }
 
 static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
@@ -88,7 +91,10 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
        /*
         * Enable the CLCD clock source.
         */
-       clk_enable(fb->clk);
+       if (!fb->clk_enabled) {
+               fb->clk_enabled = true;
+               clk_enable(fb->clk);
+       }
 
        /*
         * Bring up by first enabling..