diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2707-drm-amd-display-Enalbe-blank-data-double-buffer-afte.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2707-drm-amd-display-Enalbe-blank-data-double-buffer-afte.patch | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2707-drm-amd-display-Enalbe-blank-data-double-buffer-afte.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2707-drm-amd-display-Enalbe-blank-data-double-buffer-afte.patch new file mode 100644 index 00000000..a90c3b5f --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/2707-drm-amd-display-Enalbe-blank-data-double-buffer-afte.patch @@ -0,0 +1,82 @@ +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 + |