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| author | Eric Miao <eric.miao@marvell.com> | 2008-12-08 11:35:03 +0100 |
|---|---|---|
| committer | Eric Miao <eric.miao@marvell.com> | 2008-12-17 15:50:40 +0100 |
| commit | c1f99c215c58111629984a49ba87b2b145dd1f5b (patch) | |
| tree | ac3fd086d2d4f822b524e263fca5f18838ec20d4 /drivers/video/pxafb.c | |
| parent | [ARM] pxafb: small cleanup of the smart panel code (diff) | |
| download | linux-c1f99c215c58111629984a49ba87b2b145dd1f5b.tar.xz linux-c1f99c215c58111629984a49ba87b2b145dd1f5b.zip | |
[ARM] pxafb: allow better platform configurable smart panel timing
For smart panels (LCD panel with internal framebuffer), the following
LCCR3 register bits have different meanings than the parallel one:
LCCR3_PCP - controls the L_PCLK_WR polarity
LCCR3_HSP - controls the L_LCLK_A0 polarity
LCCR3_VSP - controls the L_FCLK_RD polarity
To keep minimum change to the original parallel timing, the .lcd_conn
flags and 'pxafb_mode_info.sync' are re-used to reflect this:
LCD_PCLK_EDGE_{RISE,FALL} - configures LCCR3_PCP
sync & FB_SYNC_{HOR,VERT}_HIGH_ACT - configures LCCR3_{HSP,VSP}
Signed-off-by: Eric Miao <eric.miao@marvell.com>
Diffstat (limited to 'drivers/video/pxafb.c')
| -rw-r--r-- | drivers/video/pxafb.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index 62d2dd0c1fa1..d6de84b42036 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -760,7 +760,9 @@ static void setup_smart_timing(struct pxafb_info *fbi, LCCR1_HorSnchWdth(__smart_timing(t3, lclk)); fbi->reg_lccr2 = LCCR2_DisHght(var->yres); - fbi->reg_lccr3 = LCCR3_PixClkDiv(__smart_timing(t4, lclk)); + fbi->reg_lccr3 = fbi->lccr3 | LCCR3_PixClkDiv(__smart_timing(t4, lclk)); + fbi->reg_lccr3 |= (var->sync & FB_SYNC_HOR_HIGH_ACT) ? LCCR3_HSP : 0; + fbi->reg_lccr3 |= (var->sync & FB_SYNC_VERT_HIGH_ACT) ? LCCR3_VSP : 0; /* FIXME: make this configurable */ fbi->reg_cmdcr = 1; |