pwm: stm32: Remove clutter from ternary operator

Remove usage of the ternary operator to assign values for register
fields. Instead, parameterize the register and field offset macros
and pass the index to them.

This removes clutter and improves readability.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

1 files changed, 9 insertions, 12 deletions

diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index c5f51a33ee1b..7a2be0453824 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -493,20 +493,17 @@ static const struct pwm_ops stm32pwm_ops = {
 static int stm32_pwm_set_breakinput(struct stm32_pwm *priv,
 				    int index, int level, int filter)
 {
-	u32 bke = (index == 0) ? TIM_BDTR_BKE : TIM_BDTR_BK2E;
-	int shift = (index == 0) ? TIM_BDTR_BKF_SHIFT : TIM_BDTR_BK2F_SHIFT;
-	u32 mask = (index == 0) ? TIM_BDTR_BKE | TIM_BDTR_BKP | TIM_BDTR_BKF
-				: TIM_BDTR_BK2E | TIM_BDTR_BK2P | TIM_BDTR_BK2F;
-	u32 bdtr = bke;
+	u32 shift = TIM_BDTR_BKF_SHIFT(index);
+	u32 bke = TIM_BDTR_BKE(index);
+	u32 bkp = TIM_BDTR_BKP(index);
+	u32 bkf = TIM_BDTR_BKF(index);
+	u32 mask = bkf | bkp | bke;
+	u32 bdtr;
 
-	/*
-	 * The both bits could be set since only one will be wrote
-	 * due to mask value.
-	 */
-	if (level)
-		bdtr |= TIM_BDTR_BKP | TIM_BDTR_BK2P;
+	bdtr = (filter & TIM_BDTR_BKF_MASK) << shift | bke;
 
-	bdtr |= (filter & TIM_BDTR_BKF_MASK) << shift;
+	if (level)
+		bdtr |= bkp;
 
 	regmap_update_bits(priv->regmap, TIM_BDTR, mask, bdtr);