When switching resolutions, config the audio setting with the previous audio parameters.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com Signed-off-by: Bo-Chen Chen rex-bc.chen@mediatek.com --- drivers/gpu/drm/mediatek/mtk_dp.c | 51 ++++++++++--------------------- 1 file changed, 16 insertions(+), 35 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index 35712ee6a04e..d4e4ceab7b2f 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -119,7 +119,7 @@ struct mtk_dp_audio_cfg { struct mtk_dp_info { u32 depth; enum dp_pixelformat format; - struct mtk_dp_audio_cfg audio_caps; + struct mtk_dp_audio_cfg audio_cur_cfg; struct mtk_dp_timings timings; };
@@ -1966,8 +1966,6 @@ static bool mtk_dp_edid_parse_audio_capabilities(struct mtk_dp *mtk_dp, struct mtk_dp_audio_cfg *cfg) { struct cea_sad *sads; - int sad_count; - int i; bool ret = false;
if (mtk_dp_is_edp(mtk_dp)) @@ -1979,33 +1977,13 @@ static bool mtk_dp_edid_parse_audio_capabilities(struct mtk_dp *mtk_dp, dev_err(mtk_dp->dev, "EDID not found!\n"); return false; } - sad_count = drm_edid_to_sad(mtk_dp->edid, &sads); - mutex_unlock(&mtk_dp->edid_lock);
- if (sad_count <= 0) { + ret = drm_edid_to_sad(mtk_dp->edid, &sads); + mutex_unlock(&mtk_dp->edid_lock); + if (ret <= 0) { drm_info(mtk_dp->drm_dev, "The SADs is NULL\n"); return false; } - - for (i = 0; i < sad_count; i++) { - int sample_rate, word_length; - - /* Only PCM supported at the moment */ - if (sads[i].format != HDMI_AUDIO_CODING_TYPE_PCM) - continue; - - sample_rate = drm_cea_sad_get_sample_rate(&sads[i]); - word_length = - drm_cea_sad_get_uncompressed_word_length(&sads[i]); - if (sample_rate <= 0 || word_length <= 0) - continue; - - cfg->channels = sads[i].channels; - cfg->word_length_bits = word_length; - cfg->sample_rate = sample_rate; - ret = true; - break; - } kfree(sads);
return ret; @@ -2175,14 +2153,15 @@ static int mtk_dp_training(struct mtk_dp *mtk_dp)
mtk_dp->audio_enable = mtk_dp_edid_parse_audio_capabilities(mtk_dp, - &mtk_dp->info.audio_caps); + &mtk_dp->info.audio_cur_cfg);
if (mtk_dp->audio_enable) { - mtk_dp_audio_setup(mtk_dp, &mtk_dp->info.audio_caps); + mtk_dp_audio_setup(mtk_dp, + &mtk_dp->info.audio_cur_cfg); mtk_dp_audio_mute(mtk_dp, false); } else { - memset(&mtk_dp->info.audio_caps, 0, - sizeof(mtk_dp->info.audio_caps)); + memset(&mtk_dp->info.audio_cur_cfg, 0, + sizeof(mtk_dp->info.audio_cur_cfg)); }
training_done = true; @@ -2624,6 +2603,9 @@ static void mtk_dp_bridge_atomic_disable(struct drm_bridge *bridge, if (mtk_dp_plug_state(mtk_dp)) { drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3); usleep_range(2000, 3000); + } else { + memset(&mtk_dp->info.audio_cur_cfg, 0, + sizeof(mtk_dp->info.audio_cur_cfg)); }
mtk_dp_video_mute(mtk_dp, true); @@ -2834,18 +2816,17 @@ static int mtk_dp_audio_hw_params(struct device *dev, void *data, struct hdmi_codec_params *params) { struct mtk_dp *mtk_dp = dev_get_drvdata(dev); - struct mtk_dp_audio_cfg cfg;
if (!mtk_dp->enabled) { pr_err("%s, DP is not ready!\n", __func__); return -ENODEV; }
- cfg.channels = params->cea.channels; - cfg.sample_rate = params->sample_rate; - cfg.word_length_bits = 24; + mtk_dp->info.audio_cur_cfg.channels = params->cea.channels; + mtk_dp->info.audio_cur_cfg.sample_rate = params->sample_rate; + mtk_dp->info.audio_cur_cfg.word_length_bits = 24;
- mtk_dp_audio_setup(mtk_dp, &cfg); + mtk_dp_audio_setup(mtk_dp, &mtk_dp->info.audio_cur_cfg);
return 0; }