ASoC: max98373: Added controls for autorestart config

3 new controls are added.
"OVC Autorestart Switch" : controls whether or not the speaker amplifier
automatically re-enables after an overcurrent fault condition.
"THERM Autorestart Switch" : controls whether or not the device
automatically resumes playback when the die temperature recovers from
thermal shutdown.
"CMON Autorestart Switch" : controls whether or not the device
automatically resumes playback when the clock returns after stopping.

Above Auto Restart functions are enabled by default.
Signed-off-by: Ryan Lee <ryans.lee@maximintegrated.com>
Link: https://lore.kernel.org/r/20210325033555.29377-3-ryans.lee@maximintegrated.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/max98373.c

@@ -202,6 +202,15 @@ SOC_SINGLE("Ramp Up Switch", MAX98373_R203F_AMP_DSP_CFG,
 	MAX98373_AMP_DSP_CFG_RMP_UP_SHIFT, 1, 0),
 SOC_SINGLE("Ramp Down Switch", MAX98373_R203F_AMP_DSP_CFG,
 	MAX98373_AMP_DSP_CFG_RMP_DN_SHIFT, 1, 0),
+/* Speaker Amplifier Overcurrent Automatic Restart Enable */
+SOC_SINGLE("OVC Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
+	MAX98373_OVC_AUTORESTART_SHIFT, 1, 0),
+/* Thermal Shutdown Automatic Restart Enable */
+SOC_SINGLE("THERM Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
+	MAX98373_THERM_AUTORESTART_SHIFT, 1, 0),
+/* Clock Monitor Automatic Restart Enable */
+SOC_SINGLE("CMON Autorestart Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
+	MAX98373_CMON_AUTORESTART_SHIFT, 1, 0),
 SOC_SINGLE("CLK Monitor Switch", MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
 	MAX98373_CLOCK_MON_SHIFT, 1, 0),
 SOC_SINGLE("Dither Switch", MAX98373_R203F_AMP_DSP_CFG,
@@ -390,6 +399,11 @@ static int max98373_probe(struct snd_soc_component *component)
 			MAX98373_R2021_PCM_TX_HIZ_EN_2,
 			1 << (max98373->i_slot - 8), 0);
 
+	/* enable auto restart function by default */
+	regmap_write(max98373->regmap,
+		MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG,
+		0xF);
+
 	/* speaker feedback slot configuration */
 	regmap_write(max98373->regmap,
 		MAX98373_R2023_PCM_TX_SRC_2,

sound/soc/codecs/max98373.h

@@ -195,6 +195,9 @@
 #define MAX98373_LIMITER_EN_SHIFT (0)
 
 /* MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG */
+#define MAX98373_OVC_AUTORESTART_SHIFT (3)
+#define MAX98373_THERM_AUTORESTART_SHIFT (2)
+#define MAX98373_CMON_AUTORESTART_SHIFT (1)
 #define MAX98373_CLOCK_MON_SHIFT (0)
 
 /* MAX98373_R20FF_GLOBAL_SHDN */