1 files changed, 0 insertions, 210 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0071-Add-driver-for-rpi-proto.patch b/target/linux/brcm2708/patches-4.14/950-0071-Add-driver-for-rpi-proto.patch
deleted file mode 100644
index bf0775e43d..0000000000
--- a/target/linux/brcm2708/patches-4.14/950-0071-Add-driver-for-rpi-proto.patch
+++ /dev/null
@@ -1,210 +0,0 @@
-From 02c03307c0ba3108e22b12066ac681194b4d22e0 Mon Sep 17 00:00:00 2001
-From: Waldemar Brodkorb <wbrodkorb@conet.de>
-Date: Wed, 25 Mar 2015 09:26:17 +0100
-Subject: [PATCH 071/454] Add driver for rpi-proto
-
-Forward port of 3.10.x driver from https://github.com/koalo
-We are using a custom board and would like to use rpi 3.18.x
-kernel. Patch works fine for our embedded system.
-
-URL to the audio chip:
-http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/
-
-Playback tested with devicetree enabled.
-
-Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
----
- sound/soc/bcm/Kconfig     |   7 ++
- sound/soc/bcm/Makefile    |   2 +
- sound/soc/bcm/rpi-proto.c | 153 ++++++++++++++++++++++++++++++++++++++
- 3 files changed, 162 insertions(+)
- create mode 100644 sound/soc/bcm/rpi-proto.c
-
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -53,6 +53,13 @@ config SND_BCM2708_SOC_RPI_DAC
-         help
-          Say Y or M if you want to add support for RPi-DAC.
- 
-+config SND_BCM2708_SOC_RPI_PROTO
-+	tristate "Support for Rpi-PROTO"
-+	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-+	select SND_SOC_WM8731
-+	help
-+	  Say Y or M if you want to add support for Audio Codec Board PROTO (WM8731).
-+
- config SND_BCM2708_SOC_IQAUDIO_DAC
- 	tristate "Support for IQaudIO-DAC"
- 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
---- a/sound/soc/bcm/Makefile
-+++ b/sound/soc/bcm/Makefile
-@@ -14,6 +14,7 @@ snd-soc-hifiberry-dac-objs := hifiberry_
- snd-soc-hifiberry-dacplus-objs := hifiberry_dacplus.o
- snd-soc-hifiberry-digi-objs := hifiberry_digi.o
- snd-soc-rpi-dac-objs := rpi-dac.o
-+snd-soc-rpi-proto-objs := rpi-proto.o
- snd-soc-iqaudio-dac-objs := iqaudio-dac.o
- 
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_AMP) += snd-soc-hifiberry-amp.o
-@@ -21,4 +22,5 @@ obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_D
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DIGI) += snd-soc-hifiberry-digi.o
- obj-$(CONFIG_SND_BCM2708_SOC_RPI_DAC) += snd-soc-rpi-dac.o
-+obj-$(CONFIG_SND_BCM2708_SOC_RPI_PROTO) += snd-soc-rpi-proto.o
- obj-$(CONFIG_SND_BCM2708_SOC_IQAUDIO_DAC) += snd-soc-iqaudio-dac.o
---- /dev/null
-+++ b/sound/soc/bcm/rpi-proto.c
-@@ -0,0 +1,153 @@
-+/*
-+ * ASoC driver for PROTO AudioCODEC (with a WM8731)
-+ * connected to a Raspberry Pi
-+ *
-+ * Author:      Florian Meier, <koalo@koalo.de>
-+ *	      Copyright 2013
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/soc.h>
-+#include <sound/jack.h>
-+
-+#include "../codecs/wm8731.h"
-+
-+static const unsigned int wm8731_rates_12288000[] = {
-+	8000, 32000, 48000, 96000,
-+};
-+
-+static struct snd_pcm_hw_constraint_list wm8731_constraints_12288000 = {
-+	.list = wm8731_rates_12288000,
-+	.count = ARRAY_SIZE(wm8731_rates_12288000),
-+};
-+
-+static int snd_rpi_proto_startup(struct snd_pcm_substream *substream)
-+{
-+	/* Setup constraints, because there is a 12.288 MHz XTAL on the board */
-+	snd_pcm_hw_constraint_list(substream->runtime, 0,
-+				SNDRV_PCM_HW_PARAM_RATE,
-+				&wm8731_constraints_12288000);
-+	return 0;
-+}
-+
-+static int snd_rpi_proto_hw_params(struct snd_pcm_substream *substream,
-+				       struct snd_pcm_hw_params *params)
-+{
-+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+	struct snd_soc_codec *codec = rtd->codec;
-+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-+	int sysclk = 12288000; /* This is fixed on this board */
-+
-+	/* Set proto bclk */
-+	int ret = snd_soc_dai_set_bclk_ratio(cpu_dai,32*2);
-+	if (ret < 0){
-+		dev_err(codec->dev,
-+				"Failed to set BCLK ratio %d\n", ret);
-+		return ret;
-+	}
-+
-+	/* Set proto sysclk */
-+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
-+			sysclk, SND_SOC_CLOCK_IN);
-+	if (ret < 0) {
-+		dev_err(codec->dev,
-+				"Failed to set WM8731 SYSCLK: %d\n", ret);
-+		return ret;
-+	}
-+
-+	return 0;
-+}
-+
-+/* machine stream operations */
-+static struct snd_soc_ops snd_rpi_proto_ops = {
-+	.startup = snd_rpi_proto_startup,
-+	.hw_params = snd_rpi_proto_hw_params,
-+};
-+
-+static struct snd_soc_dai_link snd_rpi_proto_dai[] = {
-+{
-+	.name		= "WM8731",
-+	.stream_name	= "WM8731 HiFi",
-+	.cpu_dai_name	= "bcm2708-i2s.0",
-+	.codec_dai_name	= "wm8731-hifi",
-+	.platform_name	= "bcm2708-i2s.0",
-+	.codec_name	= "wm8731.1-001a",
-+	.dai_fmt	= SND_SOC_DAIFMT_I2S
-+				| SND_SOC_DAIFMT_NB_NF
-+				| SND_SOC_DAIFMT_CBM_CFM,
-+	.ops		= &snd_rpi_proto_ops,
-+},
-+};
-+
-+/* audio machine driver */
-+static struct snd_soc_card snd_rpi_proto = {
-+	.name		= "snd_rpi_proto",
-+	.owner		= THIS_MODULE,
-+	.dai_link	= snd_rpi_proto_dai,
-+	.num_links	= ARRAY_SIZE(snd_rpi_proto_dai),
-+};
-+
-+static int snd_rpi_proto_probe(struct platform_device *pdev)
-+{
-+	int ret = 0;
-+
-+	snd_rpi_proto.dev = &pdev->dev;
-+
-+	if (pdev->dev.of_node) {
-+		struct device_node *i2s_node;
-+		struct snd_soc_dai_link *dai = &snd_rpi_proto_dai[0];
-+		i2s_node = of_parse_phandle(pdev->dev.of_node,
-+				            "i2s-controller", 0);
-+
-+		if (i2s_node) {
-+			dai->cpu_dai_name = NULL;
-+			dai->cpu_of_node = i2s_node;
-+			dai->platform_name = NULL;
-+			dai->platform_of_node = i2s_node;
-+		}
-+	}
-+
-+	ret = snd_soc_register_card(&snd_rpi_proto);
-+	if (ret && ret != -EPROBE_DEFER)
-+		dev_err(&pdev->dev,
-+				"snd_soc_register_card() failed: %d\n", ret);
-+
-+	return ret;
-+}
-+
-+
-+static int snd_rpi_proto_remove(struct platform_device *pdev)
-+{
-+	return snd_soc_unregister_card(&snd_rpi_proto);
-+}
-+
-+static const struct of_device_id snd_rpi_proto_of_match[] = {
-+	{ .compatible = "rpi,rpi-proto", },
-+	{},
-+};
-+MODULE_DEVICE_TABLE(of, snd_rpi_proto_of_match);
-+
-+static struct platform_driver snd_rpi_proto_driver = {
-+	.driver = {
-+		.name   = "snd-rpi-proto",
-+		.owner  = THIS_MODULE,
-+		.of_match_table = snd_rpi_proto_of_match,
-+	},
-+	.probe	  = snd_rpi_proto_probe,
-+	.remove	 = snd_rpi_proto_remove,
-+};
-+
-+module_platform_driver(snd_rpi_proto_driver);
-+
-+MODULE_AUTHOR("Florian Meier");
-+MODULE_DESCRIPTION("ASoC Driver for Raspberry Pi connected to PROTO board (WM8731)");
-+MODULE_LICENSE("GPL");