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OMAPDSS: Fix writes to DISPC_POL_FREQ

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When omapdss writes to DISPC_POL_FREQ register, it always ORs the bits
with the current contents of the register, never clearing the old ones,
causing wrong signal polarity settings.

As we write all the bits in DISPC_POL_FREQ, we don't need to care about
the current contents of the register. So fix the issue by constructing
new register value from scratch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2014-04-25 11:46:16 +03:00
parent dedf2d4433
commit d80e02ef34
1 changed files with 7 additions and 7 deletions
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14
drivers/video/fbdev/omap2/dss/dispc.c
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@ -2945,13 +2945,13 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
BUG();
}
l = dispc_read_reg(DISPC_POL_FREQ(channel));
l |= FLD_VAL(onoff, 17, 17);
l |= FLD_VAL(rf, 16, 16);
l |= FLD_VAL(de_level, 15, 15);
l |= FLD_VAL(ipc, 14, 14);
l |= FLD_VAL(hsync_level, 13, 13);
l |= FLD_VAL(vsync_level, 12, 12);
l = FLD_VAL(onoff, 17, 17) |
FLD_VAL(rf, 16, 16) |
FLD_VAL(de_level, 15, 15) |
FLD_VAL(ipc, 14, 14) |
FLD_VAL(hsync_level, 13, 13) |
FLD_VAL(vsync_level, 12, 12);
dispc_write_reg(DISPC_POL_FREQ(channel), l);
}