staging: tidspbridge: use prepare/unprepare on dsp clocks

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / staging / tidspbridge / core / wdt.c

diff --git a/drivers/staging/tidspbridge/core/wdt.c b/drivers/staging/tidspbridge/core/wdt.c
index 1dce36f..7ff0e6c 100644 (file)
--- a/drivers/staging/tidspbridge/core/wdt.c
+++ b/drivers/staging/tidspbridge/core/wdt.c
@@ -63,11 +63,15 @@ int dsp_wdt_init(void)
        dsp_wdt.fclk = clk_get(NULL, "wdt3_fck");
 
        if (!IS_ERR(dsp_wdt.fclk)) {
+               clk_prepare(dsp_wdt.fclk);
+
                dsp_wdt.iclk = clk_get(NULL, "wdt3_ick");
                if (IS_ERR(dsp_wdt.iclk)) {
                        clk_put(dsp_wdt.fclk);
                        dsp_wdt.fclk = NULL;
                        ret = -EFAULT;
+               } else {
+                       clk_prepare(dsp_wdt.iclk);
                }
        } else
                ret = -EFAULT;
@@ -95,10 +99,14 @@ void dsp_wdt_exit(void)
        free_irq(INT_34XX_WDT3_IRQ, &dsp_wdt);
        tasklet_kill(&dsp_wdt.wdt3_tasklet);
 
-       if (dsp_wdt.fclk)
+       if (dsp_wdt.fclk) {
+               clk_unprepare(dsp_wdt.fclk);
                clk_put(dsp_wdt.fclk);
-       if (dsp_wdt.iclk)
+       }
+       if (dsp_wdt.iclk) {
+               clk_unprepare(dsp_wdt.iclk);
                clk_put(dsp_wdt.iclk);
+       }
 
        dsp_wdt.fclk = NULL;
        dsp_wdt.iclk = NULL;