diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3091-drm-amd-display-PME-sw-wa-to-support-waking-AZ-D3.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3091-drm-amd-display-PME-sw-wa-to-support-waking-AZ-D3.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3091-drm-amd-display-PME-sw-wa-to-support-waking-AZ-D3.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3091-drm-amd-display-PME-sw-wa-to-support-waking-AZ-D3.patch new file mode 100644 index 00000000..c1e49969 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/3091-drm-amd-display-PME-sw-wa-to-support-waking-AZ-D3.patch @@ -0,0 +1,54 @@ +From a730785ad1e12ef70d3e586e68a9ed7b2a28afc4 Mon Sep 17 00:00:00 2001 +From: Charlene Liu <charlene.liu@amd.com> +Date: Wed, 13 Dec 2017 13:41:42 -0500 +Subject: [PATCH 3091/4131] drm/amd/display: PME sw wa to support waking AZ D3 + +Signed-off-by: Charlene Liu <charlene.liu@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 12 ++++++++++++ + drivers/gpu/drm/amd/display/dc/dm_pp_smu.h | 3 ++- + 2 files changed, 14 insertions(+), 1 deletion(-) + +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 a374282..2b791b2 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -1788,7 +1788,19 @@ static enum dc_status enable_link( + } + + if (pipe_ctx->stream_res.audio && status == DC_OK) { ++ struct dc *core_dc = pipe_ctx->stream->ctx->dc; + /* notify audio driver for audio modes of monitor */ ++ struct pp_smu_funcs_rv *pp_smu = core_dc->res_pool->pp_smu; ++ unsigned int i, num_audio = 1; ++ for (i = 0; i < MAX_PIPES; i++) { ++ /*current_state not updated yet*/ ++ if (core_dc->current_state->res_ctx.pipe_ctx[i].stream_res.audio != NULL) ++ num_audio++; ++ } ++ if (num_audio == 1 && pp_smu != NULL && pp_smu->set_pme_wa_enable != NULL) ++ /*this is the first audio. apply the PME w/a in order to wake AZ from D3*/ ++ pp_smu->set_pme_wa_enable(&pp_smu->pp_smu); ++ + pipe_ctx->stream_res.audio->funcs->az_enable(pipe_ctx->stream_res.audio); + + /* un-mute audio */ +diff --git a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h +index bbfa832..eac4bfe 100644 +--- a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h ++++ b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h +@@ -91,7 +91,8 @@ struct pp_smu_funcs_rv { + /* which SMU message? are reader and writer WM separate SMU msg? */ + void (*set_wm_ranges)(struct pp_smu *pp, + struct pp_smu_wm_range_sets *ranges); +- ++ /* PME w/a */ ++ void (*set_pme_wa_enable)(struct pp_smu *pp); + }; + + #if 0 +-- +2.7.4 + |