diff mbox series

[v2,1/4] leds: pca9532: Use defines to select PWM instance

Message ID 20240617143910.154546-2-bastien.curutchet@bootlin.com
State New
Headers show
Series leds: pca9532: Use hardware for blinking LEDs | expand

Commit Message

Bastien Curutchet June 17, 2024, 2:39 p.m. UTC 
Two tables are used to configure the PWM and PSC registers of the two
PWM available in the pca9532. Magic numbers are used to access this table
instead of defines.

Add defines PCA9532_PWM_ID_0 and PCA9532_PWM_ID_1 and use them in place of
these magic numbers.

Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
---
 drivers/leds/leds-pca9532.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index bf8bb8fc007c..b6e5f48bffe7 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -45,6 +45,9 @@  struct pca9532_data {
 	struct gpio_chip gpio;
 #endif
 	const struct pca9532_chip_info *chip_info;
+
+#define PCA9532_PWM_ID_0	0
+#define PCA9532_PWM_ID_1	1
 	u8 pwm[2];
 	u8 psc[2];
 };
@@ -181,12 +184,12 @@  static int pca9532_set_brightness(struct led_classdev *led_cdev,
 		led->state = PCA9532_ON;
 	else {
 		led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */
-		err = pca9532_calcpwm(led->client, 0, 0, value);
+		err = pca9532_calcpwm(led->client, PCA9532_PWM_ID_0, 0, value);
 		if (err)
 			return err;
 	}
 	if (led->state == PCA9532_PWM0)
-		pca9532_setpwm(led->client, 0);
+		pca9532_setpwm(led->client, PCA9532_PWM_ID_0);
 	pca9532_setled(led);
 	return err;
 }
@@ -209,11 +212,11 @@  static int pca9532_set_blink(struct led_classdev *led_cdev,
 
 	/* Thecus specific: only use PSC/PWM 0 */
 	psc = (*delay_on * 152-1)/1000;
-	err = pca9532_calcpwm(client, 0, psc, led_cdev->brightness);
+	err = pca9532_calcpwm(client, PCA9532_PWM_ID_0, psc, led_cdev->brightness);
 	if (err)
 		return err;
 	if (led->state == PCA9532_PWM0)
-		pca9532_setpwm(led->client, 0);
+		pca9532_setpwm(led->client, PCA9532_PWM_ID_0);
 	pca9532_setled(led);
 
 	return 0;
@@ -229,9 +232,9 @@  static int pca9532_event(struct input_dev *dev, unsigned int type,
 
 	/* XXX: allow different kind of beeps with psc/pwm modifications */
 	if (value > 1 && value < 32767)
-		data->pwm[1] = 127;
+		data->pwm[PCA9532_PWM_ID_1] = 127;
 	else
-		data->pwm[1] = 0;
+		data->pwm[PCA9532_PWM_ID_1] = 0;
 
 	schedule_work(&data->work);
 
@@ -246,7 +249,7 @@  static void pca9532_input_work(struct work_struct *work)
 
 	mutex_lock(&data->update_lock);
 	i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(maxleds, 1),
-		data->pwm[1]);
+		data->pwm[PCA9532_PWM_ID_1]);
 	mutex_unlock(&data->update_lock);
 }
 
@@ -475,9 +478,9 @@  pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
 
 	pdata->gpio_base = -1;
 
-	of_property_read_u8_array(np, "nxp,pwm", &pdata->pwm[0],
+	of_property_read_u8_array(np, "nxp,pwm", &pdata->pwm[PCA9532_PWM_ID_0],
 				  ARRAY_SIZE(pdata->pwm));
-	of_property_read_u8_array(np, "nxp,psc", &pdata->psc[0],
+	of_property_read_u8_array(np, "nxp,psc", &pdata->psc[PCA9532_PWM_ID_0],
 				  ARRAY_SIZE(pdata->psc));
 
 	for_each_available_child_of_node(np, child) {