diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch b/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch new file mode 100644 index 0000000000..a1f423cefb --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0313-vc4_hdmi-Set-HDMI_MAI_FMT.patch @@ -0,0 +1,124 @@ +From 80ba4d12d096a8f7855835ee54dc17d1e3a0d31a Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Tue, 10 Mar 2020 22:21:15 +0000 +Subject: [PATCH] vc4_hdmi: Set HDMI_MAI_FMT + +The hardware uses this for generating the right audio +data island packets when using formats other than PCM + +Signed-off-by: Dom Cobley <popcornmix@gmail.com> +--- + drivers/gpu/drm/vc4/vc4_hdmi.c | 48 ++++++++++++++++++++++++++++++++++ + drivers/gpu/drm/vc4/vc4_regs.h | 30 +++++++++++++++++++++ + 2 files changed, 78 insertions(+) + +--- a/drivers/gpu/drm/vc4/vc4_hdmi.c ++++ b/drivers/gpu/drm/vc4/vc4_hdmi.c +@@ -988,6 +988,44 @@ static void vc4_hdmi_audio_shutdown(stru + vc4_hdmi->audio.substream = NULL; + } + ++static int sample_rate_to_mai_fmt(int samplerate) ++{ ++ switch (samplerate) { ++ case 8000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_8000; ++ case 11025: ++ return VC4_HDMI_MAI_SAMPLE_RATE_11025; ++ case 12000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_12000; ++ case 16000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_16000; ++ case 22050: ++ return VC4_HDMI_MAI_SAMPLE_RATE_22050; ++ case 24000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_24000; ++ case 32000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_32000; ++ case 44100: ++ return VC4_HDMI_MAI_SAMPLE_RATE_44100; ++ case 48000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_48000; ++ case 64000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_64000; ++ case 88200: ++ return VC4_HDMI_MAI_SAMPLE_RATE_88200; ++ case 96000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_96000; ++ case 128000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_128000; ++ case 176400: ++ return VC4_HDMI_MAI_SAMPLE_RATE_176400; ++ case 192000: ++ return VC4_HDMI_MAI_SAMPLE_RATE_192000; ++ default: ++ return VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED; ++ } ++} ++ + /* HDMI audio codec callbacks */ + static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, +@@ -998,6 +1036,8 @@ static int vc4_hdmi_audio_hw_params(stru + struct device *dev = &vc4_hdmi->pdev->dev; + u32 audio_packet_config, channel_mask; + u32 channel_map; ++ u32 mai_audio_format; ++ u32 mai_sample_rate; + + if (substream != vc4_hdmi->audio.substream) + return -EINVAL; +@@ -1018,6 +1058,14 @@ static int vc4_hdmi_audio_hw_params(stru + + vc4_hdmi_audio_set_mai_clock(vc4_hdmi); + ++ mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate); ++ mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM; ++ HDMI_WRITE(HDMI_MAI_FMT, ++ VC4_SET_FIELD(mai_sample_rate, ++ VC4_HDMI_MAI_FORMAT_SAMPLE_RATE) | ++ VC4_SET_FIELD(mai_audio_format, ++ VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT)); ++ + /* The B frame identifier should match the value used by alsa-lib (8) */ + audio_packet_config = + VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT | +--- a/drivers/gpu/drm/vc4/vc4_regs.h ++++ b/drivers/gpu/drm/vc4/vc4_regs.h +@@ -516,6 +516,36 @@ + # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_MASK VC4_MASK(7, 0) + # define VC4_HDMI_AUDIO_PACKET_CEA_MASK_SHIFT 0 + ++# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_MASK VC4_MASK(23, 16) ++# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_SHIFT 16 ++ ++enum { ++ VC4_HDMI_MAI_FORMAT_PCM = 2, ++ VC4_HDMI_MAI_FORMAT_HBR = 200, ++}; ++ ++# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_MASK VC4_MASK(15, 8) ++# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_SHIFT 8 ++ ++enum { ++ VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED = 0, ++ VC4_HDMI_MAI_SAMPLE_RATE_8000 = 1, ++ VC4_HDMI_MAI_SAMPLE_RATE_11025 = 2, ++ VC4_HDMI_MAI_SAMPLE_RATE_12000 = 3, ++ VC4_HDMI_MAI_SAMPLE_RATE_16000 = 4, ++ VC4_HDMI_MAI_SAMPLE_RATE_22050 = 5, ++ VC4_HDMI_MAI_SAMPLE_RATE_24000 = 6, ++ VC4_HDMI_MAI_SAMPLE_RATE_32000 = 7, ++ VC4_HDMI_MAI_SAMPLE_RATE_44100 = 8, ++ VC4_HDMI_MAI_SAMPLE_RATE_48000 = 9, ++ VC4_HDMI_MAI_SAMPLE_RATE_64000 = 10, ++ VC4_HDMI_MAI_SAMPLE_RATE_88200 = 11, ++ VC4_HDMI_MAI_SAMPLE_RATE_96000 = 12, ++ VC4_HDMI_MAI_SAMPLE_RATE_128000 = 13, ++ VC4_HDMI_MAI_SAMPLE_RATE_176400 = 14, ++ VC4_HDMI_MAI_SAMPLE_RATE_192000 = 15, ++}; ++ + # define VC4_HDMI_RAM_PACKET_ENABLE BIT(16) + + /* When set, the CTS_PERIOD counts based on MAI bus sync pulse instead |