mfd: Refactor db8500-prcmu request_clock() function

This refactors the mfd/dbx500-prcmu drivers to use a switch()
statement rather than nested if/else-construction.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 11 insertions, 8 deletions

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 98da431af044..e996d11980fa 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -1433,18 +1433,21 @@ static int request_sga_clock(u8 clock, bool enable)
  */
 int db8500_prcmu_request_clock(u8 clock, bool enable)
 {
-        if (clock == PRCMU_SGACLK)
+        switch(clock) {
+        case PRCMU_SGACLK:
                 return request_sga_clock(clock, enable);
-        else if (clock < PRCMU_NUM_REG_CLOCKS)
-                return request_reg_clock(clock, enable);
-        else if (clock == PRCMU_TIMCLK)
+        case PRCMU_TIMCLK:
                 return request_timclk(enable);
-        else if (clock == PRCMU_SYSCLK)
+        case PRCMU_SYSCLK:
                 return request_sysclk(enable);
-        else if (clock == PRCMU_PLLSOC1)
+        case PRCMU_PLLSOC1:
                 return request_pll(clock, enable);
-        else
-                return -EINVAL;
+        default:
+                break;
+        }
+        if (clock < PRCMU_NUM_REG_CLOCKS)
+                return request_reg_clock(clock, enable);
+        return -EINVAL;
 }
 
 int db8500_prcmu_config_esram0_deep_sleep(u8 state)