[PATCH 09/17] drm/amd/display: Remove hw w/a toggle if on DP2/HPO

[Zaeem Mohamed]

From: Ausef Yousof <ausef.you...@amd.com>

[why&how]
Applying a hw w/a only relevant to DIG FIFO causing corruption
using HPO, do not apply the w/a if on DP2/HPO

Reviewed-by: Charlene Liu <charlene....@amd.com>
Signed-off-by: Ausef Yousof <ausef.you...@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.moha...@amd.com>
---
 .../drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c  | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c 
b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index 1d4fe0de0f67..07b49b4030f9 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -133,6 +133,8 @@ static void dcn35_disable_otg_wa(struct clk_mgr 
*clk_mgr_base, struct dc_state *
        for (i = 0; i < dc->res_pool->pipe_count; ++i) {
                struct pipe_ctx *old_pipe = 
&dc->current_state->res_ctx.pipe_ctx[i];
                struct pipe_ctx *new_pipe = &context->res_ctx.pipe_ctx[i];
+               struct clk_mgr_internal *clk_mgr_internal = 
TO_CLK_MGR_INTERNAL(clk_mgr_base);
+               struct dccg *dccg = clk_mgr_internal->dccg;
                struct pipe_ctx *pipe = safe_to_lower
                        ? &context->res_ctx.pipe_ctx[i]
                        : &dc->current_state->res_ctx.pipe_ctx[i];
@@ -149,8 +151,13 @@ static void dcn35_disable_otg_wa(struct clk_mgr 
*clk_mgr_base, struct dc_state *
                new_pipe->stream_res.stream_enc &&
                new_pipe->stream_res.stream_enc->funcs->is_fifo_enabled &&
                
new_pipe->stream_res.stream_enc->funcs->is_fifo_enabled(new_pipe->stream_res.stream_enc);
-               if (pipe->stream && (pipe->stream->dpms_off || 
dc_is_virtual_signal(pipe->stream->signal) ||
-                       !pipe->stream->link_enc) && !stream_changed_otg_dig_on) 
{
+               bool has_active_hpo = 
dccg->ctx->dc->link_srv->dp_is_128b_132b_signal(old_pipe) && 
dccg->ctx->dc->link_srv->dp_is_128b_132b_signal(new_pipe);
+
+               if (!has_active_hpo && 
!dccg->ctx->dc->link_srv->dp_is_128b_132b_signal(pipe) &&
+                                       (pipe->stream && 
(pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal) ||
+                                       !pipe->stream->link_enc) && 
!stream_changed_otg_dig_on)) {
+
+
                        /* This w/a should not trigger when we have a dig 
active */
                        if (disable) {
                                if (pipe->stream_res.tg && 
pipe->stream_res.tg->funcs->immediate_disable_crtc)
-- 
2.34.1