mfd: sec-i2c: Rework platform data and regmap instantiating

Instead of a large open-coded switch statement, just add both regmap
config and device type to the OF match data. This allows us to have all
related information in one place, and avoids a long switch() statement.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250409-s2mpg10-v4-17-d66d5f39b6bf@linaro.org
Signed-off-by: Lee Jones <lee@kernel.org>

Author: andred

drivers/mfd/sec-i2c.c

@@ -20,11 +20,16 @@
 #include <linux/mfd/samsung/s5m8767.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
-#include <linux/of.h>
 #include <linux/pm.h>
+#include <linux/property.h>
 #include <linux/regmap.h>
 #include "sec-core.h"
 
+struct sec_pmic_i2c_platform_data {
+	const struct regmap_config *regmap_cfg;
+	unsigned long device_type;
+};
+
 static bool s2mpa01_volatile(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
@@ -136,52 +141,20 @@ static const struct regmap_config s5m8767_regmap_config = {
 
 static int sec_pmic_i2c_probe(struct i2c_client *client)
 {
-	const struct regmap_config *regmap;
-	unsigned long device_type;
+	const struct sec_pmic_i2c_platform_data *pdata;
 	struct regmap *regmap_pmic;
 
-	device_type = (unsigned long)of_device_get_match_data(&client->dev);
-
-	switch (device_type) {
-	case S2DOS05:
-		regmap = &s2dos05_regmap_config;
-		break;
-	case S2MPA01:
-		regmap = &s2mpa01_regmap_config;
-		break;
-	case S2MPS11X:
-		regmap = &s2mps11_regmap_config;
-		break;
-	case S2MPS13X:
-		regmap = &s2mps13_regmap_config;
-		break;
-	case S2MPS14X:
-		regmap = &s2mps14_regmap_config;
-		break;
-	case S2MPS15X:
-		regmap = &s2mps15_regmap_config;
-		break;
-	case S2MPU02:
-		regmap = &s2mpu02_regmap_config;
-		break;
-	case S2MPU05:
-		regmap = &s2mpu05_regmap_config;
-		break;
-	case S5M8767X:
-		regmap = &s5m8767_regmap_config;
-		break;
-	default:
+	pdata = device_get_match_data(&client->dev);
+	if (!pdata)
 		return dev_err_probe(&client->dev, -ENODEV,
-				     "Unsupported device type %lu\n",
-				     device_type);
-	}
+				     "Unsupported device type\n");
 
-	regmap_pmic = devm_regmap_init_i2c(client, regmap);
+	regmap_pmic = devm_regmap_init_i2c(client, pdata->regmap_cfg);
 	if (IS_ERR(regmap_pmic))
 		return dev_err_probe(&client->dev, PTR_ERR(regmap_pmic),
 				     "regmap init failed\n");
 
-	return sec_pmic_probe(&client->dev, device_type, client->irq,
+	return sec_pmic_probe(&client->dev, pdata->device_type, client->irq,
 			      regmap_pmic, client);
 }
 
@@ -190,35 +163,61 @@ static void sec_pmic_i2c_shutdown(struct i2c_client *i2c)
 	sec_pmic_shutdown(&i2c->dev);
 }
 
+static const struct sec_pmic_i2c_platform_data s2dos05_data = {
+	.regmap_cfg = &s2dos05_regmap_config,
+	.device_type = S2DOS05
+};
+
+static const struct sec_pmic_i2c_platform_data s2mpa01_data = {
+	.regmap_cfg = &s2mpa01_regmap_config,
+	.device_type = S2MPA01,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mps11_data = {
+	.regmap_cfg = &s2mps11_regmap_config,
+	.device_type = S2MPS11X,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mps13_data = {
+	.regmap_cfg = &s2mps13_regmap_config,
+	.device_type = S2MPS13X,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mps14_data = {
+	.regmap_cfg = &s2mps14_regmap_config,
+	.device_type = S2MPS14X,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mps15_data = {
+	.regmap_cfg = &s2mps15_regmap_config,
+	.device_type = S2MPS15X,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mpu02_data = {
+	.regmap_cfg = &s2mpu02_regmap_config,
+	.device_type = S2MPU02,
+};
+
+static const struct sec_pmic_i2c_platform_data s2mpu05_data = {
+	.regmap_cfg = &s2mpu05_regmap_config,
+	.device_type = S2MPU05,
+};
+
+static const struct sec_pmic_i2c_platform_data s5m8767_data = {
+	.regmap_cfg = &s5m8767_regmap_config,
+	.device_type = S5M8767X,
+};
+
 static const struct of_device_id sec_pmic_i2c_of_match[] = {
-	{
-		.compatible = "samsung,s2dos05",
-		.data = (void *)S2DOS05,
-	}, {
-		.compatible = "samsung,s2mpa01-pmic",
-		.data = (void *)S2MPA01,
-	}, {
-		.compatible = "samsung,s2mps11-pmic",
-		.data = (void *)S2MPS11X,
-	}, {
-		.compatible = "samsung,s2mps13-pmic",
-		.data = (void *)S2MPS13X,
-	}, {
-		.compatible = "samsung,s2mps14-pmic",
-		.data = (void *)S2MPS14X,
-	}, {
-		.compatible = "samsung,s2mps15-pmic",
-		.data = (void *)S2MPS15X,
-	}, {
-		.compatible = "samsung,s2mpu02-pmic",
-		.data = (void *)S2MPU02,
-	}, {
-		.compatible = "samsung,s2mpu05-pmic",
-		.data = (void *)S2MPU05,
-	}, {
-		.compatible = "samsung,s5m8767-pmic",
-		.data = (void *)S5M8767X,
-	},
+	{ .compatible = "samsung,s2dos05", .data = &s2dos05_data, },
+	{ .compatible = "samsung,s2mpa01-pmic", .data = &s2mpa01_data, },
+	{ .compatible = "samsung,s2mps11-pmic", .data = &s2mps11_data, },
+	{ .compatible = "samsung,s2mps13-pmic", .data = &s2mps13_data, },
+	{ .compatible = "samsung,s2mps14-pmic", .data = &s2mps14_data, },
+	{ .compatible = "samsung,s2mps15-pmic", .data = &s2mps15_data, },
+	{ .compatible = "samsung,s2mpu02-pmic", .data = &s2mpu02_data, },
+	{ .compatible = "samsung,s2mpu05-pmic", .data = &s2mpu05_data, },
+	{ .compatible = "samsung,s5m8767-pmic", .data = &s5m8767_data, },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sec_pmic_i2c_of_match);