brcm2708: add kernel 4.14 support

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.14 / 950-0209-ASoC-pcm512x-revert-downstream-changes.patch

diff --git a/target/linux/brcm2708/patches-4.14/950-0209-ASoC-pcm512x-revert-downstream-changes.patch b/target/linux/brcm2708/patches-4.14/950-0209-ASoC-pcm512x-revert-downstream-changes.patch
new file mode 100644 (file)
index 0000000..def4981
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.14/950-0209-ASoC-pcm512x-revert-downstream-changes.patch
@@ -0,0 +1,34 @@
+From ddb523d853a0d64275424f935d8bb6da4af3b4dc Mon Sep 17 00:00:00 2001
+From: Matthias Reichl <hias@horus.com>
+Date: Fri, 2 Feb 2018 20:30:41 +0100
+Subject: [PATCH 209/454] ASoC: pcm512x: revert downstream changes
+
+This partially reverts commit 185ea05465aac8bf02a0d2b2f4289d42c72870b7
+which was added by https://github.com/raspberrypi/linux/pull/1152
+
+The downstream pcm512x changes caused a regression, it broke normal
+use of the 24bit format with the codec, eg when using simple-audio-card.
+
+The actual bug with 24bit playback is the incorrect usage
+of physical_width in various drivers in the downstream tree
+which causes 24bit data to be transmitted with 32 clock
+cycles. So it's not the pcm512x that needs fixing, it's the
+soundcard drivers.
+
+Signed-off-by: Matthias Reichl <hias@horus.com>
+---
+ sound/soc/codecs/pcm512x.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+--- a/sound/soc/codecs/pcm512x.c
++++ b/sound/soc/codecs/pcm512x.c
+@@ -851,8 +851,7 @@ static int pcm512x_set_dividers(struct s
+       int fssp;
+       int gpio;
+ 
+-      lrclk_div = snd_pcm_format_physical_width(params_format(params))
+-              * params_channels(params);
++      lrclk_div = snd_soc_params_to_frame_size(params);
+       if (lrclk_div == 0) {
+               dev_err(dev, "No LRCLK?\n");
+               return -EINVAL;