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From 52d0219e106014b3a35000ea3a269f3de73a102d Mon Sep 17 00:00:00 2001
From: Yongqiang Sun <yongqiang.sun@amd.com>
Date: Mon, 23 Oct 2017 15:57:52 -0400
Subject: [PATCH 2707/4131] drm/amd/display: Enalbe blank data double buffer
after mpc disconnected.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
.../drm/amd/display/dc/dcn10/dcn10_timing_generator.c | 19 ++++++++++++++-----
.../gpu/drm/amd/display/dc/inc/hw/timing_generator.h | 2 ++
2 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
index c178cc0..5d1edb0 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_timing_generator.c
@@ -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)
diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
index 75f7a01..83f0b1d 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/timing_generator.h
@@ -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
--
2.7.4
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