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drm/sti: adjust delay for AWG

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Compensate delay introduced by AWG IP during DE generation

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Reviewed-by: Vincent ABRIOU <vincent.abriou@st.com>
This commit is contained in:
Bich Hemon 2016-03-15 17:11:14 +01:00 committed by Benjamin Gaignard
parent 32e145926b
commit 4d7037708a
2 changed files with 4 additions and 2 deletions
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4
drivers/gpu/drm/sti/sti_awg_utils.c
View File

@ -6,6 +6,8 @@
#include "sti_awg_utils.h"
#define AWG_DELAY (-5)
#define AWG_OPCODE_OFFSET 10
#define AWG_MAX_ARG 0x3ff
@ -125,7 +127,7 @@ static int awg_generate_line_signal(
val = timing->blanking_level;
ret |= awg_generate_instr(RPLSET, val, 0, 0, fwparams);
val = timing->trailing_pixels - 1;
val = timing->trailing_pixels - 1 + AWG_DELAY;
ret |= awg_generate_instr(SKIP, val, 0, 0, fwparams);
}

2
drivers/gpu/drm/sti/sti_vtg.c
View File

@ -65,7 +65,7 @@
#define HDMI_DELAY (5)
/* Delay introduced by the DVO in nb of pixel */
#define DVO_DELAY (2)
#define DVO_DELAY (7)
/* delay introduced by the Arbitrary Waveform Generator in nb of pixels */
#define AWG_DELAY_HD (-9)