linux-kernel - [PATCH 5/5] ASoC: mediatek: mt8188-mt6359: Use bitfield macros for registers

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Message-Id: <20230608084727.74403-6-angelogioacchino.delregno@collabora.com>
Date:   Thu,  8 Jun 2023 10:47:27 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     broonie@...nel.org
Cc:     lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        matthias.bgg@...il.com, angelogioacchino.delregno@...labora.com,
        trevor.wu@...iatek.com, amergnat@...libre.com,
        dan.carpenter@...aro.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, kernel@...labora.com
Subject: [PATCH 5/5] ASoC: mediatek: mt8188-mt6359: Use bitfield macros for registers

Replace open coded instances of FIELD_GET() with it, move register
definitions at the top of the file and also replace magic numbers
with register definitions.

While at it, also change a regmap_update_bits() call to regmap_write()
because the top 29 bits of AUD_TOP_CFG (31:3) are reserved (unused).

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 sound/soc/mediatek/mt8188/mt8188-mt6359.c | 32 ++++++++++++++---------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
index 5b2660139421..ac69c23e0da1 100644
--- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
+++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
@@ -6,6 +6,7 @@
  * Author: Trevor Wu <trevor.wu@...iatek.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
@@ -19,6 +20,15 @@
 #include "../common/mtk-afe-platform-driver.h"
 #include "../common/mtk-soundcard-driver.h"
 
+#define CKSYS_AUD_TOP_CFG	0x032c
+ #define RG_TEST_ON		BIT(0)
+ #define RG_TEST_TYPE		BIT(2)
+#define CKSYS_AUD_TOP_MON	0x0330
+ #define TEST_MISO_COUNT_1	GENMASK(3, 0)
+ #define TEST_MISO_COUNT_2	GENMASK(7, 4)
+ #define TEST_MISO_DONE_1	BIT(28)
+ #define TEST_MISO_DONE_2	BIT(29)
+
 #define NAU8825_HS_PRESENT	BIT(0)
 
 /*
@@ -251,9 +261,6 @@ static const struct snd_kcontrol_new mt8188_nau8825_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 };
 
-#define CKSYS_AUD_TOP_CFG 0x032c
-#define CKSYS_AUD_TOP_MON 0x0330
-
 static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *cmpnt_afe =
@@ -265,13 +272,13 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 	struct mtkaif_param *param;
 	int chosen_phase_1, chosen_phase_2;
 	int prev_cycle_1, prev_cycle_2;
-	int test_done_1, test_done_2;
+	u8 test_done_1, test_done_2;
 	int cycle_1, cycle_2;
 	int mtkaif_chosen_phase[MT8188_MTKAIF_MISO_NUM];
 	int mtkaif_phase_cycle[MT8188_MTKAIF_MISO_NUM];
 	int mtkaif_calibration_num_phase;
 	bool mtkaif_calibration_ok;
-	unsigned int monitor = 0;
+	u32 monitor = 0;
 	int counter;
 	int phase;
 	int i;
@@ -303,8 +310,7 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 	mt6359_mtkaif_calibration_enable(cmpnt_codec);
 
 	/* set test type to synchronizer pulse */
-	regmap_update_bits(afe_priv->topckgen,
-			   CKSYS_AUD_TOP_CFG, 0xffff, 0x4);
+	regmap_write(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, RG_TEST_TYPE);
 	mtkaif_calibration_num_phase = 42;	/* mt6359: 0 ~ 42 */
 	mtkaif_calibration_ok = true;
 
@@ -314,7 +320,7 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 		mt6359_set_mtkaif_calibration_phase(cmpnt_codec,
 						    phase, phase, phase);
 
-		regmap_set_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, 0x1);
+		regmap_set_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, RG_TEST_ON);
 
 		test_done_1 = 0;
 		test_done_2 = 0;
@@ -326,14 +332,14 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 		while (!(test_done_1 & test_done_2)) {
 			regmap_read(afe_priv->topckgen,
 				    CKSYS_AUD_TOP_MON, &monitor);
-			test_done_1 = (monitor >> 28) & 0x1;
-			test_done_2 = (monitor >> 29) & 0x1;
+			test_done_1 = FIELD_GET(TEST_MISO_DONE_1, monitor);
+			test_done_2 = FIELD_GET(TEST_MISO_DONE_2, monitor);
 
 			if (test_done_1 == 1)
-				cycle_1 = monitor & 0xf;
+				cycle_1 = FIELD_GET(TEST_MISO_COUNT_1, monitor);
 
 			if (test_done_2 == 1)
-				cycle_2 = (monitor >> 4) & 0xf;
+				cycle_2 = FIELD_GET(TEST_MISO_COUNT_2, monitor);
 
 			/* handle if never test done */
 			if (++counter > 10000) {
@@ -361,7 +367,7 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 			mtkaif_phase_cycle[MT8188_MTKAIF_MISO_1] = prev_cycle_2;
 		}
 
-		regmap_clear_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, 0x1);
+		regmap_clear_bits(afe_priv->topckgen, CKSYS_AUD_TOP_CFG, RG_TEST_ON);
 
 		if (mtkaif_chosen_phase[MT8188_MTKAIF_MISO_0] >= 0 &&
 		    mtkaif_chosen_phase[MT8188_MTKAIF_MISO_1] >= 0)
-- 
2.40.1