The patch titled
drivers/video/backlight/l4f00242t03.c: fix reset sequence
has been removed from the -mm tree. Its filename was
drivers-video-backlight-l4f00242t03c-fix-reset-sequence.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: drivers/video/backlight/l4f00242t03.c: fix reset sequence
From: Alberto Panizzo <maramaopercheseimorto@xxxxxxxxx>
The reset command is part of the init sequence and it take effect
only if the lcd is powered.
The effect of the bug was that the sequence:
set lcd power_state to FB_BLANK_POWERDOWN
set lcd power_state to FB_BLANK_UNBLANK
Did not produced a complete reboot of the LCD which was showing fuzzy
colours.
This was not experienced before implementing correctly all the LCD power
states with the patch [1]. Since before the patch [1] the regulators were
not touched and the LCD shutdown was reached with a register write. After
the patch [1] a complete boot sequence with an initial reset is needed for
the display every time the LCD is powered up.
drivers-video-backlight-l4f00242t03c-full-implement-fb-power-states-for-this-lcd.patch
Signed-off-by: Alberto Panizzo <maramaopercheseimorto@xxxxxxxxx>
Cc: Richard Purdie <rpurdie@xxxxxxxxx>
Cc: Marek Vasut <marek.vasut@xxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Axel Lin <axel.lin@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/backlight/l4f00242t03.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/video/backlight/l4f00242t03.c~drivers-video-backlight-l4f00242t03c-fix-reset-sequence drivers/video/backlight/l4f00242t03.c
--- a/drivers/video/backlight/l4f00242t03.c~drivers-video-backlight-l4f00242t03c-fix-reset-sequence
+++ a/drivers/video/backlight/l4f00242t03.c
@@ -62,6 +62,8 @@ static void l4f00242t03_lcd_init(struct
regulator_enable(priv->core_reg);
}
+ l4f00242t03_reset(pdata->reset_gpio);
+
gpio_set_value(pdata->data_enable_gpio, 1);
msleep(60);
spi_write(spi, (const u8 *)cmd, ARRAY_SIZE(cmd) * sizeof(u16));
@@ -227,7 +229,6 @@ static int __devinit l4f00242t03_probe(s
}
/* Init the LCD */
- l4f00242t03_reset(pdata->reset_gpio);
l4f00242t03_lcd_init(spi);
priv->lcd_state = FB_BLANK_VSYNC_SUSPEND;
l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_UNBLANK);
_
Patches currently in -mm which might be from maramaopercheseimorto@xxxxxxxxx are
origin.patch
linux-next.patch
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