diff options
| author | Bich Hemon <bich.hemon@st.com> | 2016-03-15 19:11:14 +0300 |
|---|---|---|
| committer | Benjamin Gaignard <benjamin.gaignard@linaro.org> | 2016-06-27 11:18:25 +0300 |
| commit | 4d7037708a357f5dbe9a51cc1aacf4dcb65b7192 (patch) | |
| tree | 762522b49a5cabcd9c1fb8398ccd71b694fce876 /drivers/gpu/drm/sti | |
| parent | 32e145926b7936886de8563cc727224cdc048ffe (diff) | |
| download | linux-4d7037708a357f5dbe9a51cc1aacf4dcb65b7192.tar.xz | |
drm/sti: adjust delay for AWG
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>
Diffstat (limited to 'drivers/gpu/drm/sti')
| -rw-r--r-- | drivers/gpu/drm/sti/sti_awg_utils.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/sti/sti_vtg.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/sti/sti_awg_utils.c b/drivers/gpu/drm/sti/sti_awg_utils.c index a516eb869f6f..2da7d6866d5d 100644 --- a/drivers/gpu/drm/sti/sti_awg_utils.c +++ b/drivers/gpu/drm/sti/sti_awg_utils.c @@ -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); } diff --git a/drivers/gpu/drm/sti/sti_vtg.c b/drivers/gpu/drm/sti/sti_vtg.c index 6bf4ce466d20..957ce712ea44 100644 --- a/drivers/gpu/drm/sti/sti_vtg.c +++ b/drivers/gpu/drm/sti/sti_vtg.c @@ -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) |