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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-14 13:14:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-14 13:14:03 -0700
commit5964c927b4c1399bd3ab80ebaa62eb6eef96ab07 (patch)
treed5c61d78f81ff00f00f433c9b580e7d72a746710 /drivers
parentbd9a3dba185ce6701b41f0341470d3f53bbbbaed (diff)
parent4d1632151bde847230a0bd2318806380d309655f (diff)
Merge tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds
Pull LED updates from Pavel Machek: "This is very quiet release for LEDs, pca963 got blinking support and that's pretty much it" * tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: pca963: fix misleading indentation dt-bindings: leds: Document mmc trigger leds: pca963x: fix blink with hw acceleration
Diffstat (limited to 'drivers')
-rw-r--r--drivers/leds/leds-pca963x.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/leds/leds-pca963x.c b/drivers/leds/leds-pca963x.c
index 00aecd67e348..a7e052c1db53 100644
--- a/drivers/leds/leds-pca963x.c
+++ b/drivers/leds/leds-pca963x.c
@@ -101,6 +101,7 @@ struct pca963x_led {
struct pca963x *chip;
struct led_classdev led_cdev;
int led_num; /* 0 .. 15 potentially */
+ bool blinking;
u8 gdc;
u8 gfrq;
};
@@ -129,12 +130,21 @@ static int pca963x_brightness(struct pca963x_led *led,
switch (brightness) {
case LED_FULL:
- val = (ledout & ~mask) | (PCA963X_LED_ON << shift);
+ if (led->blinking) {
+ val = (ledout & ~mask) | (PCA963X_LED_GRP_PWM << shift);
+ ret = i2c_smbus_write_byte_data(client,
+ PCA963X_PWM_BASE +
+ led->led_num,
+ LED_FULL);
+ } else {
+ val = (ledout & ~mask) | (PCA963X_LED_ON << shift);
+ }
ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
break;
case LED_OFF:
val = ledout & ~mask;
ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
+ led->blinking = false;
break;
default:
ret = i2c_smbus_write_byte_data(client,
@@ -144,7 +154,11 @@ static int pca963x_brightness(struct pca963x_led *led,
if (ret < 0)
return ret;
- val = (ledout & ~mask) | (PCA963X_LED_PWM << shift);
+ if (led->blinking)
+ val = (ledout & ~mask) | (PCA963X_LED_GRP_PWM << shift);
+ else
+ val = (ledout & ~mask) | (PCA963X_LED_PWM << shift);
+
ret = i2c_smbus_write_byte_data(client, ledout_addr, val);
break;
}
@@ -181,6 +195,7 @@ static void pca963x_blink(struct pca963x_led *led)
}
mutex_unlock(&led->chip->mutex);
+ led->blinking = true;
}
static int pca963x_power_state(struct pca963x_led *led)
@@ -275,6 +290,8 @@ static int pca963x_blink_set(struct led_classdev *led_cdev,
led->gfrq = gfrq;
pca963x_blink(led);
+ led->led_cdev.brightness = LED_FULL;
+ pca963x_led_set(led_cdev, LED_FULL);
*delay_on = time_on;
*delay_off = time_off;
@@ -337,6 +354,7 @@ static int pca963x_register_leds(struct i2c_client *client,
led->led_cdev.brightness_set_blocking = pca963x_led_set;
if (hw_blink)
led->led_cdev.blink_set = pca963x_blink_set;
+ led->blinking = false;
init_data.fwnode = child;
/* for backwards compatibility */