X-Git-Url: http://git.openwrt.org/?a=blobdiff_plain;f=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch;fp=target%2Flinux%2Fbrcm2708%2Fpatches-4.19%2F950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch;h=0000000000000000000000000000000000000000;hb=c2308a7e4adbb2acc8ff149f91d1ca46801c135e;hp=e656c05a55a7b15e3b255b9fe4f56447db33aa59;hpb=67dcc43f3a22dc3a7ac07a7065971b426feeb043;p=openwrt%2Fstaging%2Fdedeckeh.git

diff --git a/target/linux/brcm2708/patches-4.19/950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch b/target/linux/brcm2708/patches-4.19/950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch
deleted file mode 100644
index e656c05a55..0000000000
--- a/target/linux/brcm2708/patches-4.19/950-0065-ASoC-pcm512x-implement-set_tdm_slot-interface.patch
+++ /dev/null
@@ -1,80 +0,0 @@
-From 5fd7bb26ef791a7da1c0573b980ab4fe6b9c2641 Mon Sep 17 00:00:00 2001
-From: Matthias Reichl <hias@horus.com>
-Date: Thu, 22 Feb 2018 11:55:06 +0100
-Subject: [PATCH] ASoC: pcm512x: implement set_tdm_slot interface
-
-PCM512x can accept data padded with additional BCLK cycles
-but the driver currently lacks an interface to configure this.
-
-This leads to the problem that S24_LE format in master mode
-can result in non-integer clock divisors and pcm512x running
-at a rather off rate.
-
-For example 48kHz with 48fs BCLK and SCLK at 24.576MHz uses
-a divisor of 10 (rounded down from 10.6666) and results in a
-51.2kHz LRCLK. With 64fs BCLK a divisor of 8 is used and
-LRCLK runs at exactly 48kHz.
-
-Fix this by providing a minimal set_tdm_slot implementation
-so machine drivers can optionally configure custom BCLK ratios.
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
----
- sound/soc/codecs/pcm512x.c | 28 +++++++++++++++++++++++++++-
- 1 file changed, 27 insertions(+), 1 deletion(-)
-
---- a/sound/soc/codecs/pcm512x.c
-+++ b/sound/soc/codecs/pcm512x.c
-@@ -53,6 +53,7 @@ struct pcm512x_priv {
- 	unsigned long overclock_pll;
- 	unsigned long overclock_dac;
- 	unsigned long overclock_dsp;
-+	int lrclk_div;
- };
- 
- /*
-@@ -851,7 +852,10 @@ static int pcm512x_set_dividers(struct s
- 	int fssp;
- 	int gpio;
- 
--	lrclk_div = snd_soc_params_to_frame_size(params);
-+	if (pcm512x->lrclk_div)
-+		lrclk_div = pcm512x->lrclk_div;
-+	else
-+		lrclk_div = snd_soc_params_to_frame_size(params);
- 	if (lrclk_div == 0) {
- 		dev_err(dev, "No LRCLK?\n");
- 		return -EINVAL;
-@@ -1319,10 +1323,32 @@ static int pcm512x_set_fmt(struct snd_so
- 	return 0;
- }
- 
-+static int pcm512x_set_tdm_slot(struct snd_soc_dai *dai,
-+	unsigned int tx_mask, unsigned int rx_mask,
-+	int slots, int width)
-+{
-+	struct snd_soc_component *component = dai->component;
-+	struct pcm512x_priv *pcm512x = snd_soc_component_get_drvdata(component);
-+
-+	switch (slots) {
-+	case 0:
-+		pcm512x->lrclk_div = 0;
-+		return 0;
-+	case 2:
-+		if (tx_mask != 0x03 || rx_mask != 0x03)
-+			return -EINVAL;
-+		pcm512x->lrclk_div = slots * width;
-+		return 0;
-+	default:
-+		return -EINVAL;
-+	}
-+}
-+
- static const struct snd_soc_dai_ops pcm512x_dai_ops = {
- 	.startup = pcm512x_dai_startup,
- 	.hw_params = pcm512x_hw_params,
- 	.set_fmt = pcm512x_set_fmt,
-+	.set_tdm_slot = pcm512x_set_tdm_slot,
- };
- 
- static struct snd_soc_dai_driver pcm512x_dai = {