diff mbox series

ASoC: mediatek: mt8188: correct etdm control return value

Message ID 20230215125017.16044-1-trevor.wu@mediatek.com
State New
Headers
Series ASoC: mediatek: mt8188: correct etdm control return value |

Commit Message

Trevor Wu (吳文良) Feb. 15, 2023, 12:50 p.m. UTC 
  In mt8188_etdm_clk_src_sel_put() function, val retrieved by FIELD_PREP
is shifted to the corresponding bit filed, so it can compare with the
register value directly.

Originally, the redundant bit shift of the register value results in
the wrong comparison result, so we remove bit shift operation in the
patch.

Fixes: 2babb4777489 ("ASoC: mediatek: mt8188: support etdm in platform driver")
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
---
 sound/soc/mediatek/mt8188/mt8188-dai-etdm.c | 8 --------
 1 file changed, 8 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c b/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
index 071841903c62..1c53d4cb19bb 100644
--- a/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
+++ b/sound/soc/mediatek/mt8188/mt8188-dai-etdm.c
@@ -679,7 +679,6 @@  static int mt8188_etdm_clk_src_sel_put(struct snd_kcontrol *kcontrol,
 	unsigned int old_val;
 	unsigned int mask;
 	unsigned int reg;
-	unsigned int shift;
 
 	if (source >= e->items)
 		return -EINVAL;
@@ -687,27 +686,22 @@  static int mt8188_etdm_clk_src_sel_put(struct snd_kcontrol *kcontrol,
 	if (!strcmp(kcontrol->id.name, "ETDM_OUT1_Clock_Source")) {
 		reg = ETDM_OUT1_CON4;
 		mask = ETDM_OUT_CON4_CLOCK_MASK;
-		shift = ETDM_OUT_CON4_CLOCK_SHIFT;
 		val = FIELD_PREP(ETDM_OUT_CON4_CLOCK_MASK, source);
 	} else if (!strcmp(kcontrol->id.name, "ETDM_OUT2_Clock_Source")) {
 		reg = ETDM_OUT2_CON4;
 		mask = ETDM_OUT_CON4_CLOCK_MASK;
-		shift = ETDM_OUT_CON4_CLOCK_SHIFT;
 		val = FIELD_PREP(ETDM_OUT_CON4_CLOCK_MASK, source);
 	} else if (!strcmp(kcontrol->id.name, "ETDM_OUT3_Clock_Source")) {
 		reg = ETDM_OUT3_CON4;
 		mask = ETDM_OUT_CON4_CLOCK_MASK;
-		shift = ETDM_OUT_CON4_CLOCK_SHIFT;
 		val = FIELD_PREP(ETDM_OUT_CON4_CLOCK_MASK, source);
 	} else if (!strcmp(kcontrol->id.name, "ETDM_IN1_Clock_Source")) {
 		reg = ETDM_IN1_CON2;
 		mask = ETDM_IN_CON2_CLOCK_MASK;
-		shift = ETDM_IN_CON2_CLOCK_SHIFT;
 		val = FIELD_PREP(ETDM_IN_CON2_CLOCK_MASK, source);
 	} else if (!strcmp(kcontrol->id.name, "ETDM_IN2_Clock_Source")) {
 		reg = ETDM_IN2_CON2;
 		mask = ETDM_IN_CON2_CLOCK_MASK;
-		shift = ETDM_IN_CON2_CLOCK_SHIFT;
 		val = FIELD_PREP(ETDM_IN_CON2_CLOCK_MASK, source);
 	} else {
 		return -EINVAL;
@@ -715,8 +709,6 @@  static int mt8188_etdm_clk_src_sel_put(struct snd_kcontrol *kcontrol,
 
 	regmap_read(afe->regmap, reg, &old_val);
 	old_val &= mask;
-	old_val >>= shift;
-
 	if (old_val == val)
 		return 0;