ASoC: codec: tpa6130a2: Convert to GPIO descriptors

Merge series from "Peng Fan (OSS)" <peng.fan@oss.nxp.com>:

Per Mark's comments in [1], each driver in one patchset and not merge
the changes to one driver in one patch, so worked out three patches.

- Sort the included headers.
- Drop sound/tpa6130a2-plat.h because no user is creating the device using
   platform data
- Covert to GPIO descriptors

Checking the DTS polarity, all users are using GPIOD_ACTIVE_HIGH.
so all should work as expected with this patch.

I not have hardware to test, just my best effort to do this.

[1] https://lore.kernel.org/all/66db9962-d773-4c7a-bf59-4698eca9eedc@sirena.org.uk/

Author: broonie

MAINTAINERS

@@ -23896,7 +23896,6 @@ F:	Documentation/devicetree/bindings/sound/ti,tlv320*.yaml
 F:	Documentation/devicetree/bindings/sound/ti,tlv320adcx140.yaml
 F:	include/sound/tas2*.h
 F:	include/sound/tlv320*.h
-F:	include/sound/tpa6130a2-plat.h
 F:	sound/pci/hda/tas2781_hda_i2c.c
 F:	sound/soc/codecs/pcm1681.c
 F:	sound/soc/codecs/pcm1789*.*

include/sound/tpa6130a2-plat.h

@@ -7,19 +7,17 @@
  * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
  */
 
-#include <linux/module.h>
-#include <linux/errno.h>
 #include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
-#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-#include <sound/tpa6130a2-plat.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
-#include <linux/regmap.h>
 
 #include "tpa6130a2.h"
 
@@ -33,7 +31,7 @@ struct tpa6130a2_data {
 	struct device *dev;
 	struct regmap *regmap;
 	struct regulator *supply;
-	int power_gpio;
+	struct gpio_desc *power_gpio;
 	enum tpa_model id;
 };
 
@@ -49,8 +47,7 @@ static int tpa6130a2_power(struct tpa6130a2_data *data, bool enable)
 			return ret;
 		}
 		/* Power on */
-		if (data->power_gpio >= 0)
-			gpio_set_value(data->power_gpio, 1);
+		gpiod_set_value(data->power_gpio, 1);
 
 		/* Sync registers */
 		regcache_cache_only(data->regmap, false);
@@ -59,8 +56,7 @@ static int tpa6130a2_power(struct tpa6130a2_data *data, bool enable)
 			dev_err(data->dev,
 				"Failed to sync registers: %d\n", ret);
 			regcache_cache_only(data->regmap, true);
-			if (data->power_gpio >= 0)
-				gpio_set_value(data->power_gpio, 0);
+			gpiod_set_value(data->power_gpio, 0);
 			ret2 = regulator_disable(data->supply);
 			if (ret2 != 0)
 				dev_err(data->dev,
@@ -76,8 +72,7 @@ static int tpa6130a2_power(struct tpa6130a2_data *data, bool enable)
 		regcache_cache_only(data->regmap, true);
 
 		/* Power off */
-		if (data->power_gpio >= 0)
-			gpio_set_value(data->power_gpio, 0);
+		gpiod_set_value(data->power_gpio, 0);
 
 		ret = regulator_disable(data->supply);
 		if (ret != 0) {
@@ -209,18 +204,10 @@ static const struct regmap_config tpa6130a2_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
-static const struct i2c_device_id tpa6130a2_id[] = {
-	{ "tpa6130a2", TPA6130A2 },
-	{ "tpa6140a2", TPA6140A2 },
-	{ }
-};
-MODULE_DEVICE_TABLE(i2c, tpa6130a2_id);
-
 static int tpa6130a2_probe(struct i2c_client *client)
 {
 	struct device *dev;
 	struct tpa6130a2_data *data;
-	struct tpa6130a2_platform_data *pdata = client->dev.platform_data;
 	struct device_node *np = client->dev.of_node;
 	const char *regulator;
 	unsigned int version;
@@ -238,10 +225,13 @@ static int tpa6130a2_probe(struct i2c_client *client)
 	if (IS_ERR(data->regmap))
 		return PTR_ERR(data->regmap);
 
-	if (pdata) {
-		data->power_gpio = pdata->power_gpio;
-	} else if (np) {
-		data->power_gpio = of_get_named_gpio(np, "power-gpio", 0);
+	if (np) {
+		data->power_gpio = devm_gpiod_get_optional(dev, "power", GPIOD_OUT_LOW);
+		if (IS_ERR(data->power_gpio)) {
+			return dev_err_probe(dev, PTR_ERR(data->power_gpio),
+					     "Failed to request power GPIO\n");
+		}
+		gpiod_set_consumer_name(data->power_gpio, "tpa6130a2 enable");
 	} else {
 		dev_err(dev, "Platform data not set\n");
 		dump_stack();
@@ -252,17 +242,6 @@ static int tpa6130a2_probe(struct i2c_client *client)
 
 	data->id = (uintptr_t)i2c_get_match_data(client);
 
-	if (data->power_gpio >= 0) {
-		ret = devm_gpio_request(dev, data->power_gpio,
-					"tpa6130a2 enable");
-		if (ret < 0) {
-			dev_err(dev, "Failed to request power GPIO (%d)\n",
-				data->power_gpio);
-			return ret;
-		}
-		gpio_direction_output(data->power_gpio, 0);
-	}
-
 	switch (data->id) {
 	default:
 		dev_warn(dev, "Unknown TPA model (%d). Assuming 6130A2\n",
@@ -318,7 +297,6 @@ static struct i2c_driver tpa6130a2_i2c_driver = {
 		.of_match_table = of_match_ptr(tpa6130a2_of_match),
 	},
 	.probe = tpa6130a2_probe,
-	.id_table = tpa6130a2_id,
 };
 
 module_i2c_driver(tpa6130a2_i2c_driver);