From: George Stark <gnstark@xxxxxxxxxxxxxxxxx> use DIV_ROUND_UP instead of coarse div Signed-off-by: George Stark <gnstark@xxxxxxxxxxxxxxxxx> Signed-off-by: Dmitry Rokosov <ddrokosov@xxxxxxxxxxxxxxxxx> --- drivers/leds/leds-aw200xx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/leds/leds-aw200xx.c b/drivers/leds/leds-aw200xx.c index 5a1a93ffe36c..09b8bc6724c7 100644 --- a/drivers/leds/leds-aw200xx.c +++ b/drivers/leds/leds-aw200xx.c @@ -87,6 +87,8 @@ #define AW200XX_REG_DIM(x, columns) \ AW200XX_REG(AW200XX_PAGE4, AW200XX_LED2REG(x, columns) * 2) #define AW200XX_REG_DIM2FADE(x) ((x) + 1) +#define AW200XX_REG_FADE2DIM(fade) \ + DIV_ROUND_UP((fade) * AW200XX_DIM_MAX, AW200XX_FADE_MAX) /* * Duty ratio of display scan (see p.15 of datasheet for formula): @@ -195,9 +197,7 @@ static int aw200xx_brightness_set(struct led_classdev *cdev, dim = led->dim; if (dim < 0) - dim = max_t(int, - brightness / (AW200XX_FADE_MAX / AW200XX_DIM_MAX), - 1); + dim = AW200XX_REG_FADE2DIM(brightness); ret = regmap_write(chip->regmap, reg, dim); if (ret) -- 2.36.0
