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OMAPDSS: DISPC: explicit handling for sync and de levels 

When configuring the lcd timings, instead of writing enum values
directly to the HW, use switch-case to get the value to be programmed.

This is safer and also allows us to change the enum values.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2014-10-02 17:58:49 +00:00
parent 7a16360d56
commit ed35188158
1 changed files with 37 additions and 4 deletions
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41
drivers/video/fbdev/omap2/dss/dispc.c
View File

@ -2915,7 +2915,7 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
{
u32 timing_h, timing_v, l;
bool onoff, rf, ipc;
bool onoff, rf, ipc, vs, hs, de;
timing_h = FLD_VAL(hsw-1, dispc.feat->sw_start, 0) |
FLD_VAL(hfp-1, dispc.feat->fp_start, 8) |
@ -2927,6 +2927,39 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
dispc_write_reg(DISPC_TIMING_H(channel), timing_h);
dispc_write_reg(DISPC_TIMING_V(channel), timing_v);
switch (vsync_level) {
case OMAPDSS_SIG_ACTIVE_LOW:
vs = true;
break;
case OMAPDSS_SIG_ACTIVE_HIGH:
vs = false;
break;
default:
BUG();
}
switch (hsync_level) {
case OMAPDSS_SIG_ACTIVE_LOW:
hs = true;
break;
case OMAPDSS_SIG_ACTIVE_HIGH:
hs = false;
break;
default:
BUG();
}
switch (de_level) {
case OMAPDSS_SIG_ACTIVE_LOW:
de = true;
break;
case OMAPDSS_SIG_ACTIVE_HIGH:
de = false;
break;
default:
BUG();
}
switch (data_pclk_edge) {
case OMAPDSS_DRIVE_SIG_RISING_EDGE:
ipc = false;
@ -2954,10 +2987,10 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
l = FLD_VAL(onoff, 17, 17) |
FLD_VAL(rf, 16, 16) |
FLD_VAL(de_level, 15, 15) |
FLD_VAL(de, 15, 15) |
FLD_VAL(ipc, 14, 14) |
FLD_VAL(hsync_level, 13, 13) |
FLD_VAL(vsync_level, 12, 12);
FLD_VAL(hs, 13, 13) |
FLD_VAL(vs, 12, 12);
dispc_write_reg(DISPC_POL_FREQ(channel), l);