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authorEric Miao <eric.miao@marvell.com>2008-12-08 18:35:03 +0800
committerEric Miao <eric.miao@marvell.com>2008-12-17 22:50:40 +0800
commitc1f99c215c58111629984a49ba87b2b145dd1f5b (patch)
treeac3fd086d2d4f822b524e263fca5f18838ec20d4 /drivers/video/pxafb.c
parent07df1c4fea1474ae6db2c8554d2915cf5cf81369 (diff)
[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.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 62d2dd0c1fa..d6de84b4203 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;