diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4180-drm-amd-display-remove-dummy-is_blanked-to-optimise-.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4180-drm-amd-display-remove-dummy-is_blanked-to-optimise-.patch | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4180-drm-amd-display-remove-dummy-is_blanked-to-optimise-.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4180-drm-amd-display-remove-dummy-is_blanked-to-optimise-.patch new file mode 100644 index 00000000..2fac72f0 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4180-drm-amd-display-remove-dummy-is_blanked-to-optimise-.patch @@ -0,0 +1,75 @@ +From c49a9291e75a1396363d95e5bde011d35f913f29 Mon Sep 17 00:00:00 2001 +From: Shirish S <shirish.s@amd.com> +Date: Wed, 28 Mar 2018 12:22:22 +0530 +Subject: [PATCH 4180/5725] drm/amd/display: remove dummy is_blanked() to + optimise boot time + +is_blanked() hook is a dummy one for underlay pipe, hence +when called, it loops for ~300ms at boot. + +This patch removes this dummy call and adds missing checks. + +Signed-off-by: Shirish S <shirish.s@amd.com> +Reviewed-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c | 3 +++ + drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c | 3 ++- + drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c | 7 ------- + 3 files changed, 5 insertions(+), 8 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c +index ebc96b7..481f692 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c +@@ -230,6 +230,9 @@ bool hwss_wait_for_blank_complete( + { + int counter; + ++ /* Not applicable if the pipe is not primary, save 300ms of boot time */ ++ if (!tg->funcs->is_blanked) ++ return true; + for (counter = 0; counter < 100; counter++) { + if (tg->funcs->is_blanked(tg)) + break; +diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c +index 4877243..0275d6d 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c ++++ b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.c +@@ -53,7 +53,8 @@ void dce_pipe_control_lock(struct dc *dc, + struct dce_hwseq *hws = dc->hwseq; + + /* Not lock pipe when blank */ +- if (lock && pipe->stream_res.tg->funcs->is_blanked(pipe->stream_res.tg)) ++ if (lock && pipe->stream_res.tg->funcs->is_blanked && ++ pipe->stream_res.tg->funcs->is_blanked(pipe->stream_res.tg)) + return; + + val = REG_GET_4(BLND_V_UPDATE_LOCK[pipe->stream_res.tg->inst], +diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c +index 8ad0481..a3cef60 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c ++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator_v.c +@@ -648,12 +648,6 @@ static void dce110_timing_generator_v_disable_vga( + return; + } + +-static bool dce110_tg_v_is_blanked(struct timing_generator *tg) +-{ +- /* Signal comes from the primary pipe, underlay is never blanked. */ +- return false; +-} +- + /** ******************************************************************************************** + * + * DCE11 Timing Generator Constructor / Destructor +@@ -670,7 +664,6 @@ static const struct timing_generator_funcs dce110_tg_v_funcs = { + .set_early_control = dce110_timing_generator_v_set_early_control, + .wait_for_state = dce110_timing_generator_v_wait_for_state, + .set_blank = dce110_timing_generator_v_set_blank, +- .is_blanked = dce110_tg_v_is_blanked, + .set_colors = dce110_timing_generator_v_set_colors, + .set_overscan_blank_color = + dce110_timing_generator_v_set_overscan_color_black, +-- +2.7.4 + |