hack: hack 98373 for feedback data validation

change max98373 to 32 bit and hack 98373 to Feedback to slots:
I0->slot0,
V0->slot1,
I1->slot2,
V1->slot3.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>

Author: keyonjie

drivers/base/regmap/regmap-debugfs.c

@@ -289,6 +289,9 @@ static ssize_t regmap_map_read_file(struct file *file, char __user *user_buf,
 }
 
 #undef REGMAP_ALLOW_WRITE_DEBUGFS
+
+#define REGMAP_ALLOW_WRITE_DEBUGFS
+
 #ifdef REGMAP_ALLOW_WRITE_DEBUGFS
 /*
  * This can be dangerous especially when we have clients such as

sound/soc/codecs/max98373.c

@@ -204,6 +204,10 @@ static int max98373_set_clock(struct snd_soc_component *component,
 	return 0;
 }
 
+#define MAX_98373_CODEC_DAI	"max98373-aif1"
+#define MAX_98373_DEV0_NAME	"i2c-MX98373:00"
+#define MAX_98373_DEV1_NAME	"i2c-MX98373:01"
+
 static int max98373_dai_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params,
 	struct snd_soc_dai *dai)
@@ -213,6 +217,36 @@ static int max98373_dai_hw_params(struct snd_pcm_substream *substream,
 	unsigned int sampling_rate = 0;
 	unsigned int chan_sz = 0;
 
+	if (!strcmp(dai->component->name, MAX_98373_DEV0_NAME)) {
+		/* voltage(1), current(0) slot configuration */
+		regmap_write(max98373->regmap,
+			MAX98373_R2022_PCM_TX_SRC_1,
+			(0x0 << MAX98373_PCM_TX_CH_SRC_A_I_SHIFT |
+			0x1) & 0xFF);
+		regmap_update_bits(max98373->regmap,
+			MAX98373_R2020_PCM_TX_HIZ_EN_1,
+			0x3, 0);
+
+		/* speaker feedback slot configuration */
+		regmap_write(max98373->regmap,
+			MAX98373_R2023_PCM_TX_SRC_2,
+			0x10);
+	} else if (!strcmp(dai->component->name, MAX_98373_DEV1_NAME)) {
+		/* voltage(3), current(2) slot configuration */
+		regmap_write(max98373->regmap,
+			MAX98373_R2022_PCM_TX_SRC_1,
+			(0x2 << MAX98373_PCM_TX_CH_SRC_A_I_SHIFT |
+			0x3) & 0xFF);
+		regmap_update_bits(max98373->regmap,
+			MAX98373_R2020_PCM_TX_HIZ_EN_1,
+			0xc, 0);
+
+		/* speaker feedback slot configuration */
+		regmap_write(max98373->regmap,
+			MAX98373_R2023_PCM_TX_SRC_2,
+			0x20);
+	}
+
 	/* pcm mode configuration */
 	switch (snd_pcm_format_width(params_format(params))) {
 	case 16:

sound/soc/intel/boards/sof_maxim_common.c

@@ -47,11 +47,11 @@ static int max98373_hw_params(struct snd_pcm_substream *substream,
 	for_each_rtd_codec_dais(rtd, j, codec_dai) {
 		if (!strcmp(codec_dai->component->name, MAX_98373_DEV0_NAME)) {
 			/* DEV0 tdm slot configuration */
-			snd_soc_dai_set_tdm_slot(codec_dai, 0x30, 3, 8, 16);
+			snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x1, 8, 32);
 		}
 		if (!strcmp(codec_dai->component->name, MAX_98373_DEV1_NAME)) {
 			/* DEV1 tdm slot configuration */
-			snd_soc_dai_set_tdm_slot(codec_dai, 0xC0, 3, 8, 16);
+			snd_soc_dai_set_tdm_slot(codec_dai, 0xC, 0x2, 8, 32);
 		}
 	}
 	return 0;