brcm2708: update to latest patches from RPi foundation

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch b/target/linux/brcm2708/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch
new file mode 100644 (file)
index 0000000..5b38ca5
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0397-staging-bcm2835-audio-Set-SNDRV_PCM_INFO_SYNC_APPLPT.patch
@@ -0,0 +1,40 @@
+From 27417ac1fa4894dc46d71cc34af17fe6a5186f2f Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai@suse.de>
+Date: Tue, 4 Sep 2018 17:58:55 +0200
+Subject: [PATCH] staging: bcm2835-audio: Set
+ SNDRV_PCM_INFO_SYNC_APPLPTR
+
+commit b59d6a5f73501f74848d6700101e7736afe3d54a upstream.
+
+The recent ALSA PCM core supports the SNDRV_PCM_INFO_SYNC_APPLPTR flag
+indicating that the driver needs the ack call at each appl_ptr
+update.  This is requirement for the indirect PCM implementations like
+bcm2835-audio driver, too.
+
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+@@ -12,7 +12,7 @@
+ static const struct snd_pcm_hardware snd_bcm2835_playback_hw = {
+       .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+-               SNDRV_PCM_INFO_DRAIN_TRIGGER),
++               SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
+       .formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
+       .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
+       .rate_min = 8000,
+@@ -29,7 +29,7 @@ static const struct snd_pcm_hardware snd
+ static const struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = {
+       .info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+                SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+-               SNDRV_PCM_INFO_DRAIN_TRIGGER),
++               SNDRV_PCM_INFO_DRAIN_TRIGGER | SNDRV_PCM_INFO_SYNC_APPLPTR),
+       .formats = SNDRV_PCM_FMTBIT_S16_LE,
+       .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_44100 |
+       SNDRV_PCM_RATE_48000,