drivers: i2c: NXP: Convert clock control to use DEVICE_DT_GET

Replace device_get_binding with DEVICE_DT_GET for getting access
to the clock controller device.

Signed-off-by: Kumar Gala <[email protected]>

Author: galak

drivers/i2c/i2c_mcux_flexcomm.c

@@ -19,7 +19,7 @@ LOG_MODULE_REGISTER(mcux_flexcomm);
 
 struct mcux_flexcomm_config {
 	I2C_Type *base;
-	char *clock_name;
+	const struct device *clock_dev;
 	clock_control_subsys_t clock_subsys;
 	void (*irq_config_func)(const struct device *dev);
 	uint32_t bitrate;
@@ -28,15 +28,13 @@ struct mcux_flexcomm_config {
 struct mcux_flexcomm_data {
 	i2c_master_handle_t handle;
 	struct k_sem device_sync_sem;
-	const struct device *dev_clock;
 	status_t callback_status;
 };
 
 static int mcux_flexcomm_configure(const struct device *dev,
 				   uint32_t dev_config_raw)
 {
 	const struct mcux_flexcomm_config *config = dev->config;
-	struct mcux_flexcomm_data *data = dev->data;
 	I2C_Type *base = config->base;
 	uint32_t clock_freq;
 	uint32_t baudrate;
@@ -64,7 +62,7 @@ static int mcux_flexcomm_configure(const struct device *dev,
 	}
 
 	/* Get the clock frequency */
-	if (clock_control_get_rate(data->dev_clock, config->clock_subsys,
+	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
 				   &clock_freq)) {
 		return -EINVAL;
 	}
@@ -187,13 +185,8 @@ static int mcux_flexcomm_init(const struct device *dev)
 
 	k_sem_init(&data->device_sync_sem, 0, UINT_MAX);
 
-	data->dev_clock = device_get_binding(config->clock_name);
-	if (data->dev_clock == NULL) {
-		return -ENODEV;
-	}
-
 	/* Get the clock frequency */
-	if (clock_control_get_rate(data->dev_clock, config->clock_subsys,
+	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
 				   &clock_freq)) {
 		return -EINVAL;
 	}
@@ -225,7 +218,7 @@ static const struct i2c_driver_api mcux_flexcomm_driver_api = {
 	static void mcux_flexcomm_config_func_##id(const struct device *dev); \
 	static const struct mcux_flexcomm_config mcux_flexcomm_config_##id = {	\
 		.base = (I2C_Type *) DT_INST_REG_ADDR(id),		\
-		.clock_name = DT_INST_CLOCKS_LABEL(id),		\
+		.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(id)),	\
 		.clock_subsys =				\
 		(clock_control_subsys_t)DT_INST_CLOCKS_CELL(id, name),\
 		.irq_config_func = mcux_flexcomm_config_func_##id,	\

drivers/i2c/i2c_mcux_lpi2c.c

@@ -23,7 +23,7 @@ LOG_MODULE_REGISTER(mcux_lpi2c);
 
 struct mcux_lpi2c_config {
 	LPI2C_Type *base;
-	char *clock_name;
+	const struct device *clock_dev;
 	clock_control_subsys_t clock_subsys;
 	void (*irq_config_func)(const struct device *dev);
 	uint32_t bitrate;
@@ -41,7 +41,6 @@ static int mcux_lpi2c_configure(const struct device *dev,
 {
 	const struct mcux_lpi2c_config *config = dev->config;
 	LPI2C_Type *base = config->base;
-	const struct device *clock_dev;
 	uint32_t clock_freq;
 	uint32_t baudrate;
 
@@ -67,12 +66,7 @@ static int mcux_lpi2c_configure(const struct device *dev,
 		return -EINVAL;
 	}
 
-	clock_dev = device_get_binding(config->clock_name);
-	if (clock_dev == NULL) {
-		return -EINVAL;
-	}
-
-	if (clock_control_get_rate(clock_dev, config->clock_subsys,
+	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
 				   &clock_freq)) {
 		return -EINVAL;
 	}
@@ -193,19 +187,13 @@ static int mcux_lpi2c_init(const struct device *dev)
 	const struct mcux_lpi2c_config *config = dev->config;
 	struct mcux_lpi2c_data *data = dev->data;
 	LPI2C_Type *base = config->base;
-	const struct device *clock_dev;
 	uint32_t clock_freq, bitrate_cfg;
 	lpi2c_master_config_t master_config;
 	int error;
 
 	k_sem_init(&data->device_sync_sem, 0, UINT_MAX);
 
-	clock_dev = device_get_binding(config->clock_name);
-	if (clock_dev == NULL) {
-		return -EINVAL;
-	}
-
-	if (clock_control_get_rate(clock_dev, config->clock_subsys,
+	if (clock_control_get_rate(config->clock_dev, config->clock_subsys,
 				   &clock_freq)) {
 		return -EINVAL;
 	}
@@ -239,7 +227,7 @@ static const struct i2c_driver_api mcux_lpi2c_driver_api = {
 									\
 	static const struct mcux_lpi2c_config mcux_lpi2c_config_##n = {	\
 		.base = (LPI2C_Type *)DT_INST_REG_ADDR(n),		\
-		.clock_name = DT_INST_CLOCKS_LABEL(n),			\
+		.clock_dev = DEVICE_DT_GET(DT_INST_CLOCKS_CTLR(n)),	\
 		.clock_subsys =						\
 			(clock_control_subsys_t)DT_INST_CLOCKS_CELL(n, name),\
 		.irq_config_func = mcux_lpi2c_config_func_##n,		\