linux-kernel - [PATCH] ASoC: AK4458: add regulator for ak4458

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 16 May 2019 13:00:48 +0000
From:   Viorel Suman <viorel.suman@....com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        "S.j. Wang" <shengjiu.wang@....com>,
        Viorel Suman <viorel.suman@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        Julia Lawall <Julia.Lawall@...6.fr>,
        Colin Ian King <colin.king@...onical.com>,
        "alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     dl-linux-imx <linux-imx@....com>,
        Viorel Suman <viorel.suman@...il.com>
Subject: [PATCH] ASoC: AK4458: add regulator for ak4458

From: Shengjiu Wang <shengjiu.wang@....com>

Add regulator for ak4458.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
Signed-off-by: Viorel Suman <viorel.suman@....com>
---
 sound/soc/codecs/ak4458.c | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ak4458.c b/sound/soc/codecs/ak4458.c
index 7156215..06dcf13 100644
--- a/sound/soc/codecs/ak4458.c
+++ b/sound/soc/codecs/ak4458.c
@@ -12,6 +12,7 @@
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <sound/initval.h>
 #include <sound/pcm_params.h>
@@ -21,6 +22,12 @@
 
 #include "ak4458.h"
 
+#define AK4458_NUM_SUPPLIES 2
+static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = {
+	"DVDD",
+	"AVDD",
+};
+
 struct ak4458_drvdata {
 	struct snd_soc_dai_driver *dai_drv;
 	const struct snd_soc_component_driver *comp_drv;
@@ -37,6 +44,7 @@ struct ak4458_priv {
 	int fmt;
 	int slots;
 	int slot_width;
+	struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES];
 };
 
 static const struct reg_default ak4458_reg_defaults[] = {
@@ -666,7 +674,7 @@ static int ak4458_i2c_probe(struct i2c_client *i2c)
 {
 	struct ak4458_priv *ak4458;
 	const struct ak4458_drvdata *drvdata;
-	int ret;
+	int ret, i;
 
 	ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);
 	if (!ak4458)
@@ -691,6 +699,23 @@ static int ak4458_i2c_probe(struct i2c_client *i2c)
 	if (IS_ERR(ak4458->mute_gpiod))
 		return PTR_ERR(ak4458->mute_gpiod);
 
+	for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)
+		ak4458->supplies[i].supply = ak4458_supply_names[i];
+
+	ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),
+				      ak4458->supplies);
+	if (ret != 0) {
+		dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);
+		return ret;
+	}
+
+	ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),
+				    ak4458->supplies);
+	if (ret != 0) {
+		dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);
+		return ret;
+	}
+
 	ret = devm_snd_soc_register_component(ak4458->dev, drvdata->comp_drv,
 					      drvdata->dai_drv, 1);
 	if (ret < 0) {
-- 
2.7.4