diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch b/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch deleted file mode 100644 index 3ab091ba33..0000000000 --- a/target/linux/bcm27xx/patches-5.10/950-0312-vc4_hdmi-Set-HD_CTL_WHOLSMP-and-HD_CTL_CHALIGN_SET.patch +++ /dev/null @@ -1,42 +0,0 @@ -From 1a0b802bb6bca3b42034245d35b56309749a362c Mon Sep 17 00:00:00 2001 -From: Dom Cobley <popcornmix@gmail.com> -Date: Tue, 23 Jun 2020 18:37:01 +0100 -Subject: [PATCH] vc4_hdmi: Set HD_CTL_WHOLSMP and HD_CTL_CHALIGN_SET - -Symptom is random switching of speakers when using multichannel. - -Repeatedly running speakertest -c8 occasionally starts with -channels jumbled. This is fixed with HD_CTL_WHOLSMP. - -The other bit looks beneficial and apears harmless in testing so -I'd suggest adding it too. - -Documentation says: HD_CTL_WHILSMP_SET -Wait for whole sample. When this bit is set MAI transmit will start -only when there is at least one whole sample available in the fifo. - -Documentation says: HD_CTL_CHALIGN_SET -Channel Align When Overflow. This bit is used to realign the audio -channels in case of an overflow. -If this bit is set, after the detection of an overflow, equal -amount of dummy words to the missing words will be written to fifo, -filling up the broken sample and maintaining alignment. - -Signed-off-by: Dom Cobley <popcornmix@gmail.com> ---- - drivers/gpu/drm/vc4/vc4_hdmi.c | 4 +++- - 1 file changed, 3 insertions(+), 1 deletion(-) - ---- a/drivers/gpu/drm/vc4/vc4_hdmi.c -+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c -@@ -1074,7 +1074,9 @@ static int vc4_hdmi_audio_trigger(struct - HDMI_WRITE(HDMI_MAI_CTL, - VC4_SET_FIELD(vc4_hdmi->audio.channels, - VC4_HD_MAI_CTL_CHNUM) | -- VC4_HD_MAI_CTL_ENABLE); -+ VC4_HD_MAI_CTL_WHOLSMP | -+ VC4_HD_MAI_CTL_CHALIGN | -+ VC4_HD_MAI_CTL_ENABLE); - break; - case SNDRV_PCM_TRIGGER_STOP: - HDMI_WRITE(HDMI_MAI_CTL, |