drm/amd/display: Enalbe blank data double buffer after mpc disconnected. (38614212) · Commits · 戴 / test

drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c

+14 −5

Original line number	Diff line number	Diff line
		@@ -290,6 +290,16 @@ static void tgn10_program_timing(

		}

		static void tgn10_set_blank_data_double_buffer(struct timing_generator *tg, bool enable)
		{
		struct dcn10_timing_generator *tgn10 = DCN10TG_FROM_TG(tg);

		uint32_t blank_data_double_buffer_enable = enable ? 1 : 0;

		REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL,
		OTG_BLANK_DATA_DOUBLE_BUFFER_EN, blank_data_double_buffer_enable);
		}

		/**
		* unblank_crtc
		* Call ASIC Control Object to UnBlank CRTC.
		@@ -306,8 +316,7 @@ static void tgn10_unblank_crtc(struct timing_generator *tg)
		* this check will be removed.
		*/
		if (vertical_interrupt_enable)
		REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL,
		OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 1);
		tgn10_set_blank_data_double_buffer(tg, true);

		REG_UPDATE_2(OTG_BLANK_CONTROL,
		OTG_BLANK_DATA_EN, 0,
		@@ -334,8 +343,7 @@ static void tgn10_blank_crtc(struct timing_generator *tg)
		OTG_BLANK_DATA_EN, 1,
		1, 100000);

		REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL,
		OTG_BLANK_DATA_DOUBLE_BUFFER_EN, 0);
		tgn10_set_blank_data_double_buffer(tg, false);
		}

		static void tgn10_set_blank(struct timing_generator *tg,
		@@ -1234,7 +1242,8 @@ static const struct timing_generator_funcs dcn10_tg_funcs = {
		.set_static_screen_control = tgn10_set_static_screen_control,
		.set_test_pattern = tgn10_set_test_pattern,
		.program_stereo = tgn10_program_stereo,
		.is_stereo_left_eye = tgn10_is_stereo_left_eye
		.is_stereo_left_eye = tgn10_is_stereo_left_eye,
		.set_blank_data_double_buffer = tgn10_set_blank_data_double_buffer
		};

		void dcn10_timing_generator_init(struct dcn10_timing_generator *tgn10)

drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -182,6 +182,8 @@ struct timing_generator_funcs {
		void (program_stereo)(struct timing_generator tg,
		const struct dc_crtc_timing timing, struct crtc_stereo_flags flags);
		bool (is_stereo_left_eye)(struct timing_generator tg);

		void (set_blank_data_double_buffer)(struct timing_generator tg, bool enable);
		};

		#endif

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