linux-kernel - [PATCH 3/3] ASoC:codec:max98373: Added controls for autorestart config

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Date:   Wed, 24 Mar 2021 20:35:55 -0700
From:   Ryan Lee <ryans.lee@...imintegrated.com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, pierre-louis.bossart@...ux.intel.com,
        kai.vehmanen@...ux.intel.com, yung-chuan.liao@...ux.intel.com,
        rander.wang@...ux.intel.com, ryans.lee@...imintegrated.com,
        guennadi.liakhovetski@...ux.intel.com, vkoul@...nel.org,
        yong.zhi@...el.com, judyhsiao@...gle.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Cc:     ryan.lee.maxim@...il.com
Subject: [PATCH 3/3] ASoC:codec: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@...imintegrated.com>
---
 sound/soc/codecs/max98373.c | 14 ++++++++++++++
 sound/soc/codecs/max98373.h |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c
index 1346a98ce8a1..e14fe98349a5 100644
--- a/sound/soc/codecs/max98373.c
+++ b/sound/soc/codecs/max98373.c
@@ -204,6 +204,15 @@ 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,
@@ -392,6 +401,11 @@ 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,
diff --git a/sound/soc/codecs/max98373.h b/sound/soc/codecs/max98373.h
index 71f5a5228f34..73a2cf69d84a 100644
--- a/sound/soc/codecs/max98373.h
+++ b/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 */
-- 
2.17.1