FYI
By changing the gfx fifo threshold and burst size values
i could able to completely eliminate the omapfb irq
error messages on 2430 SDP board.
I am pasting the changes here for anybody
who wants to try it out.
##########################################
diff --git a/drivers/video/omap/dispc.c b/drivers/video/omap/dispc.c
index 6aff476..4cf83b6 100644
--- a/drivers/video/omap/dispc.c
+++ b/drivers/video/omap/dispc.c
@@ -290,8 +290,8 @@ static void setup_plane_fifo(int plane, int ext_mode)
low = l * 3 / 4;
high = l;
} else {
- low = l / 4;
- high = l * 3 / 4;
+ low = l - 64;
+ high = l - 1;
}
MOD_REG_FLD(ftrs_reg[plane], FLD_MASK(16, 9) | FLD_MASK(0, 9),
(high << 16) | low);
@@ -409,7 +409,7 @@ static inline int _setup_plane(int plane, int channel_out,
l |= cconv_en << 9;
l &= ~(0x03 << burst_shift);
- l |= DISPC_BURST_8x32 << burst_shift;
+ l |= DISPC_BURST_16x32 << burst_shift;
l &= ~(1 << chout_shift);
l |= chout_val << chout_shift;
###############################
Regards,
Arun C
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