diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0996-drm-amd-display-write-dpcd-0x600-to-2-for-DP-eDP-whe.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0996-drm-amd-display-write-dpcd-0x600-to-2-for-DP-eDP-whe.patch | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0996-drm-amd-display-write-dpcd-0x600-to-2-for-DP-eDP-whe.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0996-drm-amd-display-write-dpcd-0x600-to-2-for-DP-eDP-whe.patch new file mode 100644 index 00000000..a5b5bdec --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0996-drm-amd-display-write-dpcd-0x600-to-2-for-DP-eDP-whe.patch @@ -0,0 +1,65 @@ +From 19cb301259c49772bc23aed9f6b8da9da16ffdd7 Mon Sep 17 00:00:00 2001 +From: Charlene Liu <charlene.liu@amd.com> +Date: Mon, 21 Aug 2017 12:59:41 -0400 +Subject: [PATCH 0996/4131] drm/amd/display: write dpcd 0x600 to 2 for DP/eDP + when powerdown + +Change-Id: Id83238a2f1b7cc66bdf7a9a02fc630f8805fdd17 +Signed-off-by: Charlene Liu <charlene.liu@amd.com> +Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 2 +- + drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 10 +++++++++- + drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h | 1 + + 3 files changed, 11 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +index ee9b984..0bdd41c 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -1977,7 +1977,7 @@ bool dc_link_setup_psr(struct dc_link *link, + #if defined(CONFIG_DRM_AMD_DC_DCN1_0) + /*skip power down the single pipe since it blocks the cstate*/ + if (ASIC_REV_IS_RAVEN(link->ctx->asic_id.hw_internal_rev)) +- psr_context->psr_level.bits.SKIP_SINGLE_OTG_DISABLE = false; ++ psr_context->psr_level.bits.SKIP_CRTC_DISABLE = true; + #endif + + /* SMU will perform additional powerdown sequence. +diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +index 6b2b491..40cae7a 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c ++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +@@ -1142,8 +1142,16 @@ static enum dc_status apply_single_controller_ctx_to_hw( + static void power_down_encoders(struct dc *dc) + { + int i; +- ++ enum connector_id connector_id; + for (i = 0; i < dc->link_count; i++) { ++ connector_id = dal_graphics_object_id_get_connector_id(dc->links[i]->link_id); ++ if ((connector_id == CONNECTOR_ID_DISPLAY_PORT) || ++ (connector_id == CONNECTOR_ID_EDP)) { ++ ++ if (!dc->links[i]->wa_flags.dp_keep_receiver_powered) ++ dp_receiver_power_ctrl(dc->links[i], false); ++ } ++ + dc->links[i]->link_enc->funcs->disable_output( + dc->links[i]->link_enc, SIGNAL_TYPE_NONE); + } +diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h +index d710f6e6..ac418fd 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h ++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.h +@@ -67,5 +67,6 @@ void dce110_fill_display_configs( + + uint32_t dce110_get_min_vblank_time_us(const struct validate_context *context); + ++void dp_receiver_power_ctrl(struct dc_link *link, bool on); + #endif /* __DC_HWSS_DCE110_H__ */ + +-- +2.7.4 + |