From: Bich Hemon Date: Tue, 15 Mar 2016 16:11:14 +0000 (+0100) Subject: drm/sti: adjust delay for AWG X-Git-Tag: v4.8-rc1~62^2~30^2~1 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4d7037708a357f5dbe9a51cc1aacf4dcb65b7192;p=linux.git drm/sti: adjust delay for AWG Compensate delay introduced by AWG IP during DE generation Signed-off-by: Bich Hemon Reviewed-by: Vincent ABRIOU --- 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)