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drm/amd/display: fix disable otg wa logic in DCN316

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commit cf79814cb0 upstream.

[Why]
Wrong logic cause screen corruption.

[How]
Port logic from DCN35/314.

Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Fudongwang <fudong.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fudongwang 2024-03-26 16:03:16 +08:00 committed by Greg Kroah-Hartman
parent 5ca6cbd8ad
commit 50971570ba
1 changed files with 12 additions and 7 deletions
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19
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c
View File

@ -99,20 +99,25 @@ static int dcn316_get_active_display_cnt_wa(
return display_count;
}
static void dcn316_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context, bool disable)
static void dcn316_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *context,
bool safe_to_lower, bool disable)
{
struct dc *dc = clk_mgr_base->ctx->dc;
int i;
for (i = 0; i < dc->res_pool->pipe_count; ++i) {
struct pipe_ctx *pipe = &dc->current_state->res_ctx.pipe_ctx[i];
struct pipe_ctx *pipe = safe_to_lower
? &context->res_ctx.pipe_ctx[i]
: &dc->current_state->res_ctx.pipe_ctx[i];
if (pipe->top_pipe || pipe->prev_odm_pipe)
continue;
if (pipe->stream && (pipe->stream->dpms_off || pipe->plane_state == NULL ||
dc_is_virtual_signal(pipe->stream->signal))) {
if (pipe->stream && (pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal) ||
!pipe->stream->link_enc)) {
if (disable) {
pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);
if (pipe->stream_res.tg && pipe->stream_res.tg->funcs->immediate_disable_crtc)
pipe->stream_res.tg->funcs->immediate_disable_crtc(pipe->stream_res.tg);
reset_sync_context_for_pipe(dc, context, i);
} else
pipe->stream_res.tg->funcs->enable_crtc(pipe->stream_res.tg);
@ -207,11 +212,11 @@ static void dcn316_update_clocks(struct clk_mgr *clk_mgr_base,
}
if (should_set_clock(safe_to_lower, new_clocks->dispclk_khz, clk_mgr_base->clks.dispclk_khz)) {
dcn316_disable_otg_wa(clk_mgr_base, context, true);
dcn316_disable_otg_wa(clk_mgr_base, context, safe_to_lower, true);
clk_mgr_base->clks.dispclk_khz = new_clocks->dispclk_khz;
dcn316_smu_set_dispclk(clk_mgr, clk_mgr_base->clks.dispclk_khz);
dcn316_disable_otg_wa(clk_mgr_base, context, false);
dcn316_disable_otg_wa(clk_mgr_base, context, safe_to_lower, false);
update_dispclk = true;
}