[PATCH 03/11] pwm: rcar: Use FIELD_PREP() for PWMCR_CC0 access

[Geert Uytterhoeven]

Use the FIELD_PREP() helper instead of open-coding the same operation.
Drop the now unused RCAR_PWMCR_CC0_SHIFT definition, and redefine
RCAR_PWMCR_CC0_SHIFT using GENMASK() while at it.

Signed-off-by: Geert Uytterhoeven <geert+renesas at glider.be>
---
 drivers/pwm/pwm-rcar.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-rcar.c b/drivers/pwm/pwm-rcar.c
index 1733cd700693713e..4641f258df531baf 100644
--- a/drivers/pwm/pwm-rcar.c
+++ b/drivers/pwm/pwm-rcar.c
@@ -25,8 +25,7 @@
 #define RCAR_PWM_MAX_CYCLE	1023
 
 #define RCAR_PWMCR		0x00
-#define  RCAR_PWMCR_CC0_MASK	0x000f0000
-#define  RCAR_PWMCR_CC0_SHIFT	16
+#define  RCAR_PWMCR_CC0_MASK	GENMASK(19, 16)
 #define  RCAR_PWMCR_CCMD	BIT(15)
 #define  RCAR_PWMCR_SYNC	BIT(11)
 #define  RCAR_PWMCR_SS0		BIT(4)
@@ -99,7 +98,7 @@ static void rcar_pwm_set_clock_control(struct rcar_pwm_chip *rp,
 
 	div >>= 1;
 
-	value |= div << RCAR_PWMCR_CC0_SHIFT;
+	value |= FIELD_PREP(RCAR_PWMCR_CC0_MASK, div);
 	rcar_pwm_write(rp, value, RCAR_PWMCR);
 }
 
-- 
2.43.0