Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 203 insertions, 0 deletions

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
new file mode 100644
index 000000000..ff57b192d
--- /dev/null
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -0,0 +1,203 @@
+/*
+ *  smdk_wm8994.c
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#include "../codecs/wm8994.h"
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+ /*
+  * Default CFG switch settings to use this driver:
+  *	SMDKV310: CFG5-1000, CFG7-111111
+  */
+
+ /*
+  * Configure audio route as :-
+  * $ amixer sset 'DAC1' on,on
+  * $ amixer sset 'Right Headphone Mux' 'DAC'
+  * $ amixer sset 'Left Headphone Mux' 'DAC'
+  * $ amixer sset 'DAC1R Mixer AIF1.1' on
+  * $ amixer sset 'DAC1L Mixer AIF1.1' on
+  * $ amixer sset 'IN2L' on
+  * $ amixer sset 'IN2L PGA IN2LN' on
+  * $ amixer sset 'MIXINL IN2L' on
+  * $ amixer sset 'AIF1ADC1L Mixer ADC/DMIC' on
+  * $ amixer sset 'IN2R' on
+  * $ amixer sset 'IN2R PGA IN2RN' on
+  * $ amixer sset 'MIXINR IN2R' on
+  * $ amixer sset 'AIF1ADC1R Mixer ADC/DMIC' on
+  */
+
+/* SMDK has a 16.934MHZ crystal attached to WM8994 */
+#define SMDK_WM8994_FREQ 16934000
+
+struct smdk_wm8994_data {
+	int mclk1_rate;
+};
+
+/* Default SMDKs */
+static struct smdk_wm8994_data smdk_board_data = {
+	.mclk1_rate = SMDK_WM8994_FREQ,
+};
+
+static int smdk_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_dai *codec_dai = rtd->codec_dai;
+	unsigned int pll_out;
+	int ret;
+
+	/* AIF1CLK should be >=3MHz for optimal performance */
+	if (params_width(params) == 24)
+		pll_out = params_rate(params) * 384;
+	else if (params_rate(params) == 8000 || params_rate(params) == 11025)
+		pll_out = params_rate(params) * 512;
+	else
+		pll_out = params_rate(params) * 256;
+
+	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
+					SMDK_WM8994_FREQ, pll_out);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
+					pll_out, SND_SOC_CLOCK_IN);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/*
+ * SMDK WM8994 DAI operations.
+ */
+static struct snd_soc_ops smdk_ops = {
+	.hw_params = smdk_hw_params,
+};
+
+static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
+
+	/* Other pins NC */
+	snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
+	snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
+	snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
+	snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
+	snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
+	snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
+	snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
+	snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
+	snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
+	snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
+	snd_soc_dapm_nc_pin(dapm, "IN1LP");
+	snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
+	snd_soc_dapm_nc_pin(dapm, "IN1RP");
+	snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
+
+	return 0;
+}
+
+static struct snd_soc_dai_link smdk_dai[] = {
+	{ /* Primary DAI i/f */
+		.name = "WM8994 AIF1",
+		.stream_name = "Pri_Dai",
+		.cpu_dai_name = "samsung-i2s.0",
+		.codec_dai_name = "wm8994-aif1",
+		.platform_name = "samsung-i2s.0",
+		.codec_name = "wm8994-codec",
+		.init = smdk_wm8994_init_paiftx,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBM_CFM,
+		.ops = &smdk_ops,
+	}, { /* Sec_Fifo Playback i/f */
+		.name = "Sec_FIFO TX",
+		.stream_name = "Sec_Dai",
+		.cpu_dai_name = "samsung-i2s-sec",
+		.codec_dai_name = "wm8994-aif1",
+		.platform_name = "samsung-i2s-sec",
+		.codec_name = "wm8994-codec",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBM_CFM,
+		.ops = &smdk_ops,
+	},
+};
+
+static struct snd_soc_card smdk = {
+	.name = "SMDK-I2S",
+	.owner = THIS_MODULE,
+	.dai_link = smdk_dai,
+	.num_links = ARRAY_SIZE(smdk_dai),
+};
+
+static const struct of_device_id samsung_wm8994_of_match[] = {
+	{ .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
+
+static int smdk_audio_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct device_node *np = pdev->dev.of_node;
+	struct snd_soc_card *card = &smdk;
+	struct smdk_wm8994_data *board;
+	const struct of_device_id *id;
+
+	card->dev = &pdev->dev;
+
+	board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
+	if (!board)
+		return -ENOMEM;
+
+	if (np) {
+		smdk_dai[0].cpu_dai_name = NULL;
+		smdk_dai[0].cpu_of_node = of_parse_phandle(np,
+				"samsung,i2s-controller", 0);
+		if (!smdk_dai[0].cpu_of_node) {
+			dev_err(&pdev->dev,
+			   "Property 'samsung,i2s-controller' missing or invalid\n");
+			ret = -EINVAL;
+		}
+
+		smdk_dai[0].platform_name = NULL;
+		smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
+	}
+
+	id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
+	if (id)
+		*board = *((struct smdk_wm8994_data *)id->data);
+
+	platform_set_drvdata(pdev, board);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
+
+	return ret;
+}
+
+static struct platform_driver smdk_audio_driver = {
+	.driver		= {
+		.name	= "smdk-audio-wm8994",
+		.of_match_table = of_match_ptr(samsung_wm8994_of_match),
+		.pm	= &snd_soc_pm_ops,
+	},
+	.probe		= smdk_audio_probe,
+};
+
+module_platform_driver(smdk_audio_driver);
+
+MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:smdk-audio-wm8994");