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Commit 4d703770 authored by Bich Hemon's avatar Bich Hemon Committed by Benjamin Gaignard
Browse files

drm/sti: adjust delay for AWG 



Compensate delay introduced by AWG IP during DE generation

Signed-off-by: default avatarBich Hemon <bich.hemon@st.com>
Reviewed-by: default avatarVincent ABRIOU <vincent.abriou@st.com>
parent 32e14592

drivers/gpu/drm/sti/sti_awg_utils.c

+3 −1
Original line number Diff line number Diff line
@@ -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);

	}

drivers/gpu/drm/sti/sti_vtg.c

+1 −1
Original line number Diff line number Diff line
@@ -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)