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leds: tlc591xx: update the maximum brightness
commita2cafdfd8c
upstream. The TLC chips actually offer 257 levels: - 0: led OFF - 1-255: Led dimmed is using a PWM. The duty cycle range from 0.4% to 99.6% - 256: led fully ON Fixes:e370d010a5
("leds: tlc591xx: Driver for the TI 8/16 Channel i2c LED driver") Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
6498b7a571
commit
3af1974d54
1 changed files with 4 additions and 3 deletions
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@ -13,6 +13,7 @@
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#include <linux/slab.h>
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#define TLC591XX_MAX_LEDS 16
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#define TLC591XX_MAX_BRIGHTNESS 256
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#define TLC591XX_REG_MODE1 0x00
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#define MODE1_RESPON_ADDR_MASK 0xF0
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@ -112,11 +113,11 @@ tlc591xx_brightness_set(struct led_classdev *led_cdev,
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struct tlc591xx_priv *priv = led->priv;
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int err;
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switch (brightness) {
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switch ((int)brightness) {
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case 0:
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err = tlc591xx_set_ledout(priv, led, LEDOUT_OFF);
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break;
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case LED_FULL:
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case TLC591XX_MAX_BRIGHTNESS:
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err = tlc591xx_set_ledout(priv, led, LEDOUT_ON);
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break;
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default:
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@ -157,7 +158,7 @@ tlc591xx_configure(struct device *dev,
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led->priv = priv;
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led->led_no = i;
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led->ldev.brightness_set_blocking = tlc591xx_brightness_set;
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led->ldev.max_brightness = LED_FULL;
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led->ldev.max_brightness = TLC591XX_MAX_BRIGHTNESS;
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err = led_classdev_register(dev, &led->ldev);
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if (err < 0) {
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dev_err(dev, "couldn't register LED %s\n",
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