linux-kernel - [PATCH] regulator: axp20x: Simplify axp20x_is_polyphase

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Date:   Sun, 15 Oct 2017 17:03:12 +0800
From:   Axel Lin <axel.lin@...ics.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org, Axel Lin <axel.lin@...ics.com>
Subject: [PATCH] regulator: axp20x: Simplify axp20x_is_polyphase_slave implementation

The code to handle AXP803_ID and AXP813_ID cases are exactly the same.
Make the switch-case fall through to avoid duplicate code.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/regulator/axp20x-regulator.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index e1761df4cbfd..181622b2813d 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -657,6 +657,7 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
 	 */
 	switch (axp20x->variant) {
 	case AXP803_ID:
+	case AXP813_ID:
 		regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);
 
 		switch (id) {
@@ -681,17 +682,6 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
 		}
 		break;
 
-	case AXP813_ID:
-		regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);
-
-		switch (id) {
-		case AXP803_DCDC3:
-			return !!(reg & BIT(6));
-		case AXP803_DCDC6:
-			return !!(reg & BIT(5));
-		}
-		break;
-
 	default:
 		return false;
 	}
-- 
2.11.0