diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch b/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch new file mode 100644 index 0000000000..cfe27b866a --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0315-drm-vc4-move-setup-from-hw_params-to-prepare.patch @@ -0,0 +1,58 @@ +From 7b6cfdfc74c7e9c00060a0c4146a6358b261f7db Mon Sep 17 00:00:00 2001 +From: Matthias Reichl <hias@horus.com> +Date: Thu, 19 Mar 2020 20:00:35 +0100 +Subject: [PATCH] drm/vc4: move setup from hw_params to prepare + +Configuring HDMI audio registers in prepare allows us to take +IEC958 bits into account which are set by the alsa hook after +the hw_params call. + +Signed-off-by: Matthias Reichl <hias@horus.com> +--- + drivers/gpu/drm/vc4/vc4_hdmi.c | 20 +++++++++++--------- + 1 file changed, 11 insertions(+), 9 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_hdmi.c ++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c +@@ -1028,9 +1028,8 @@ static int sample_rate_to_mai_fmt(int sa + } + + /* HDMI audio codec callbacks */ +-static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, +- struct snd_pcm_hw_params *params, +- struct snd_soc_dai *dai) ++static int vc4_hdmi_audio_prepare(struct snd_pcm_substream *substream, ++ struct snd_soc_dai *dai) + { + struct vc4_hdmi *vc4_hdmi = dai_to_hdmi(dai); + struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; +@@ -1043,12 +1042,15 @@ static int vc4_hdmi_audio_hw_params(stru + if (substream != vc4_hdmi->audio.substream) + return -EINVAL; + +- dev_dbg(dev, "%s: %u Hz, %d bit, %d channels\n", __func__, +- params_rate(params), params_width(params), +- params_channels(params)); ++ dev_dbg(dev, "%s: %u Hz, %d bit, %d channels AES0=%02x\n", ++ __func__, ++ substream->runtime->rate, ++ snd_pcm_format_width(substream->runtime->format), ++ substream->runtime->channels, ++ vc4_hdmi->audio.iec_status[0]); + +- vc4_hdmi->audio.channels = params_channels(params); +- vc4_hdmi->audio.samplerate = params_rate(params); ++ vc4_hdmi->audio.channels = substream->runtime->channels; ++ vc4_hdmi->audio.samplerate = substream->runtime->rate; + + HDMI_WRITE(HDMI_MAI_CTL, + VC4_HD_MAI_CTL_RESET | +@@ -1270,7 +1272,7 @@ static const struct snd_soc_component_dr + static const struct snd_soc_dai_ops vc4_hdmi_audio_dai_ops = { + .startup = vc4_hdmi_audio_startup, + .shutdown = vc4_hdmi_audio_shutdown, +- .hw_params = vc4_hdmi_audio_hw_params, ++ .prepare = vc4_hdmi_audio_prepare, + .set_fmt = vc4_hdmi_audio_set_fmt, + .trigger = vc4_hdmi_audio_trigger, + }; |