[PATCH V2 03/12] clk: mediatek: reset: Refine functions of set_clr

[Rex-BC Chen <rex-bc.chen@mediatek.com>]

To make driver more readable, revise functions of set_clr.
- Add to_rst_data().
- Extract common code within assert and deassert to
  mtk_reset_update_set_clr().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
---
 drivers/clk/mediatek/reset.c | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 9110d0b4229f..6574b19daf0f 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -20,26 +20,36 @@ struct mtk_reset {
 	struct reset_controller_dev rcdev;
 };
 
-static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+static inline struct mtk_reset *to_rst_data(struct reset_controller_dev *rcdev)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-	unsigned int reg = data->regofs + ((id / 32) << 4);
+	return container_of(rcdev, struct mtk_reset, rcdev);
+}
 
-	return regmap_write(data->regmap, reg, BIT(id % 32));
+static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id, bool deassert)
+{
+	struct mtk_reset *data = to_rst_data(rcdev);
+	unsigned int deassert_ofs = deassert ? 0x4 : 0;
+
+	return regmap_write(data->regmap,
+			    data->regofs + ((id / 32) << 4) + deassert_ofs,
+			    BIT(id % 32));
 }
 
-static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-	unsigned int reg = data->regofs + ((id / 32) << 4) + 0x4;
+	return mtk_reset_update_set_clr(rcdev, id, false);
+}
 
-	return regmap_write(data->regmap, reg, BIT(id % 32));
+static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
+				      unsigned long id)
+{
+	return mtk_reset_update_set_clr(rcdev, id, true);
 }
 
 static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+			     unsigned long id)
 {
 	int ret;
 
-- 
2.18.0