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leds: pca9532: Use defines to select PWM instance

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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>
Link: https://lore.kernel.org/r/20240617143910.154546-2-bastien.curutchet@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Bastien Curutchet 2024-06-17 16:39:07 +02:00 committed by Lee Jones
parent a031c81497
commit 0e69c9062b
1 changed files with 12 additions and 9 deletions
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21
drivers/leds/leds-pca9532.c
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@ -45,6 +45,9 @@ struct pca9532_data {
struct gpio_chip gpio; struct gpio_chip gpio;
#endif #endif
const struct pca9532_chip_info *chip_info; const struct pca9532_chip_info *chip_info;
#define PCA9532_PWM_ID_0 0
#define PCA9532_PWM_ID_1 1
u8 pwm[2]; u8 pwm[2];
u8 psc[2]; u8 psc[2];
}; };
@ -181,12 +184,12 @@ static int pca9532_set_brightness(struct led_classdev *led_cdev,
led->state = PCA9532_ON; led->state = PCA9532_ON;
else { else {
led->state = PCA9532_PWM0; /* Thecus: hardcode one pwm */ 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) if (err)
return err; return err;
} }
if (led->state == PCA9532_PWM0) if (led->state == PCA9532_PWM0)
pca9532_setpwm(led->client, 0); pca9532_setpwm(led->client, PCA9532_PWM_ID_0);
pca9532_setled(led); pca9532_setled(led);
return err; return err;
} }
@ -209,11 +212,11 @@ static int pca9532_set_blink(struct led_classdev *led_cdev,
/* Thecus specific: only use PSC/PWM 0 */ /* Thecus specific: only use PSC/PWM 0 */
psc = (*delay_on * 152-1)/1000; 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) if (err)
return err; return err;
if (led->state == PCA9532_PWM0) if (led->state == PCA9532_PWM0)
pca9532_setpwm(led->client, 0); pca9532_setpwm(led->client, PCA9532_PWM_ID_0);
pca9532_setled(led); pca9532_setled(led);
return 0; 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 */ /* XXX: allow different kind of beeps with psc/pwm modifications */
if (value > 1 && value < 32767) if (value > 1 && value < 32767)
data->pwm[1] = 127; data->pwm[PCA9532_PWM_ID_1] = 127;
else else
data->pwm[1] = 0; data->pwm[PCA9532_PWM_ID_1] = 0;
schedule_work(&data->work); schedule_work(&data->work);
@ -246,7 +249,7 @@ static void pca9532_input_work(struct work_struct *work)
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
i2c_smbus_write_byte_data(data->client, PCA9532_REG_PWM(maxleds, 1), 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); mutex_unlock(&data->update_lock);
} }
@ -475,9 +478,9 @@ pca9532_of_populate_pdata(struct device *dev, struct device_node *np)
pdata->gpio_base = -1; 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)); 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)); ARRAY_SIZE(pdata->psc));
for_each_available_child_of_node(np, child) { for_each_available_child_of_node(np, child) {