cr_bllcd can turn backlight ON or OFF. Fix semantitics so they equals what we know from gpio-backlight. brightness == 0 => backlight off brightness == 1 => backlight on
Use the backlight_get_brightness() helper to simplify the code.
v2: - reworked to introduce gpio-backlight semantics (Daniel)
Signed-off-by: Sam Ravnborg sam@ravnborg.org Cc: Lee Jones lee.jones@linaro.org Cc: Daniel Thompson daniel.thompson@linaro.org Cc: Jingoo Han jingoohan1@gmail.com --- drivers/video/backlight/cr_bllcd.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/video/backlight/cr_bllcd.c b/drivers/video/backlight/cr_bllcd.c index 4624b7b7c6a6..a24d42e1ea3c 100644 --- a/drivers/video/backlight/cr_bllcd.c +++ b/drivers/video/backlight/cr_bllcd.c @@ -63,22 +63,15 @@ static int cr_backlight_set_intensity(struct backlight_device *bd) u32 addr = gpio_bar + CRVML_PANEL_PORT; u32 cur = inl(addr);
- if (bd->props.power == FB_BLANK_UNBLANK) - intensity = FB_BLANK_UNBLANK; - if (bd->props.fb_blank == FB_BLANK_UNBLANK) - intensity = FB_BLANK_UNBLANK; - if (bd->props.power == FB_BLANK_POWERDOWN) - intensity = FB_BLANK_POWERDOWN; - if (bd->props.fb_blank == FB_BLANK_POWERDOWN) - intensity = FB_BLANK_POWERDOWN; - - if (intensity == FB_BLANK_UNBLANK) { /* FULL ON */ - cur &= ~CRVML_BACKLIGHT_OFF; - outl(cur, addr); - } else if (intensity == FB_BLANK_POWERDOWN) { /* OFF */ + if (backlight_get_brightness(bd) == 0) { + /* OFF */ cur |= CRVML_BACKLIGHT_OFF; outl(cur, addr); - } /* anything else, don't bother */ + } else { + /* FULL ON */ + cur &= ~CRVML_BACKLIGHT_OFF; + outl(cur, addr); + }
return 0; } @@ -90,9 +83,9 @@ static int cr_backlight_get_intensity(struct backlight_device *bd) u8 intensity;
if (cur & CRVML_BACKLIGHT_OFF) - intensity = FB_BLANK_POWERDOWN; + intensity = 0; else - intensity = FB_BLANK_UNBLANK; + intensity = 1;
return intensity; }