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drm/amd/display: Check stream pointer is initialized before accessing

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[why & how]
We calculate static screen wait frames based
on the current timing info in the active stream.
If stream is not initialized, then we should skip
the calculation and go with the default values.

Reviewed-by: Gabe Teeger <gabe.teeger@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sung Joon Kim 2024-07-03 16:15:59 -04:00 committed by Alex Deucher
parent 08cbe68d4a
commit be7a6a5171
1 changed files with 3 additions and 4 deletions
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7
drivers/gpu/drm/amd/display/dc/hwss/dcn35/dcn35_hwseq.c
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@ -1461,10 +1461,9 @@ void dcn35_set_drr(struct pipe_ctx **pipe_ctx,
for (i = 0; i < num_pipes; i++) {
if ((pipe_ctx[i]->stream_res.tg != NULL) && pipe_ctx[i]->stream_res.tg->funcs) {
struct dc_crtc_timing *timing = &pipe_ctx[i]->stream->timing;
struct dc *dc = pipe_ctx[i]->stream->ctx->dc;
if (dc->debug.static_screen_wait_frames) {
if (pipe_ctx[i]->stream && pipe_ctx[i]->stream->ctx->dc->debug.static_screen_wait_frames) {
struct dc_crtc_timing *timing = &pipe_ctx[i]->stream->timing;
struct dc *dc = pipe_ctx[i]->stream->ctx->dc;
unsigned int frame_rate = timing->pix_clk_100hz / (timing->h_total * timing->v_total);
if (frame_rate >= 120 && dc->caps.ips_support &&