diff options
Diffstat (limited to 'target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch')
| -rw-r--r-- | target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch b/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch deleted file mode 100644 index d3e1a5136d..0000000000 --- a/target/linux/s3c24xx/patches-2.6.24/1148-fix-backlight-disable-on-zero-intensity.patch.patch +++ /dev/null @@ -1,81 +0,0 @@ -From c9d44c8b43d29dd500c1dd711e490bdcd47f2830 Mon Sep 17 00:00:00 2001 -From: Andy Green <andy@openmoko.com> -Date: Tue, 13 May 2008 18:53:40 +0100 -Subject: [PATCH] fix-backlight-disable-on-zero-intensity.patch - -It's never right to put 0 intensity into LEDOUT according to datasheet -But having a floor at intensity 2 means backlight isn't properly off -when "dimmed". So change to intensity 0 --> disable backlight. - -Signed-off-by: Andy Green <andy@openmoko.com> ---- - drivers/i2c/chips/pcf50633.c | 34 +++++++++++++++++++++------------- - 1 files changed, 21 insertions(+), 13 deletions(-) - -diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c -index dc4ea0a..205f4e3 100644 ---- a/drivers/i2c/chips/pcf50633.c -+++ b/drivers/i2c/chips/pcf50633.c -@@ -1458,6 +1458,9 @@ static int pcf50633bl_get_intensity(struct backlight_device *bd) - struct pcf50633_data *pcf = bl_get_data(bd); - int intensity = reg_read(pcf, PCF50633_REG_LEDOUT); - -+ if (!(reg_read(pcf, PCF50633_REG_LEDOUT) & 1)) -+ intensity = 0; -+ - return intensity & 0x3f; - } - -@@ -1466,31 +1469,36 @@ static int pcf50633bl_set_intensity(struct backlight_device *bd) - struct pcf50633_data *pcf = bl_get_data(bd); - int intensity = bd->props.brightness; - int old_intensity = reg_read(pcf, PCF50633_REG_LEDOUT); -- u_int8_t ledena = 2; - int ret; - -- if (bd->props.power != FB_BLANK_UNBLANK) -- intensity = 0; -- if (bd->props.fb_blank != FB_BLANK_UNBLANK) -+ if (!(reg_read(pcf, PCF50633_REG_LEDOUT) & 1)) -+ old_intensity = 0; -+ -+ if ((bd->props.power != FB_BLANK_UNBLANK) || -+ (bd->props.fb_blank != FB_BLANK_UNBLANK)) - intensity = 0; - -- /* The PCF50633 cannot handle LEDOUT = 0 (datasheet p60) -+ /* -+ * The PCF50633 cannot handle LEDOUT = 0 (datasheet p60) - * if seen, you have to re-enable the LED unit -+ * we treat intensity 0 as disable - */ - -- if (intensity != 0 && old_intensity == 0) { -- ledena = reg_read(pcf, PCF50633_REG_LEDENA); -- reg_write(pcf, PCF50633_REG_LEDENA, 0x00); -+ if (intensity && !old_intensity) { -+ ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x00); -+ if (ret) -+ return ret; - } - - if (!intensity) /* illegal to set LEDOUT to 0 */ -- ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, 2); -- else -+ ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x00); -+ else { - ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDOUT, 0x3f, - intensity); -- -- if (intensity != 0 && old_intensity == 0) -- reg_write(pcf, PCF50633_REG_LEDENA, ledena); -+ if (ret) -+ return ret; -+ ret = reg_set_bit_mask(pcf, PCF50633_REG_LEDENA, 0x01, 0x01); -+ } - - return ret; - } --- -1.5.6.5 - |