[PATCHv3 5/7] ASoC: fsl: Add SGTL5000 based audio machine driver.
From: Xiubo Li
Date: Mon Dec 16 2013 - 23:18:40 EST
This is the SGTL5000 codec based audio driver supported with both
playback and capture dai link implemention.
This implementation is only compatible with device tree definition.
Signed-off-by: Xiubo Li <Li.Xiubo@xxxxxxxxxxxxx>
Signed-off-by: Alison Wang <b18965@xxxxxxxxxxxxx
---
sound/soc/fsl/Kconfig | 22 +++++
sound/soc/fsl/Makefile | 4 +
sound/soc/fsl/vf610-sgtl5000.c | 178 +++++++++++++++++++++++++++++++++++++++++
3 files changed, 204 insertions(+)
create mode 100644 sound/soc/fsl/vf610-sgtl5000.c
diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
index ac4fe4e..bb94c3c 100644
--- a/sound/soc/fsl/Kconfig
+++ b/sound/soc/fsl/Kconfig
@@ -217,3 +217,25 @@ config SND_SOC_IMX_MC13783
select SND_SOC_IMX_PCM_DMA
endif # SND_IMX_SOC
+
+menuconfig SND_FSL_SOC
+ tristate "SoC Audio for Freescale VF610 CPUs"
+ help
+ Say Y or M if you want to add support for codecs attached to
+ the VF610 CPUs.
+
+ This will enable Freeacale SAI and SGTL5000 codec, and an extra
+ TWR-AUDIO-SGTL sub-board is needed for SGTL5000.
+
+if SND_FSL_SOC
+
+config SND_SOC_VF610_SGTL5000
+ tristate "SoC Audio support for VF610 boards with SGTL5000"
+ depends on OF && I2C
+ select SND_SOC_FSL_SAI
+ select SND_SOC_SGTL5000
+ help
+ Say Y if you want to add support for SoC audio on an VF610 board with
+ a SGTL5000 codec and a SAI.
+
+endif # SND_FSL_SOC
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index aaccbee..96110d1 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -22,6 +22,10 @@ obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o
obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o
obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
+# VF610 Platform Support
+snd-soc-vf610-sgtl5000-objs := vf610-sgtl5000.o
+obj-$(CONFIG_SND_SOC_VF610_SGTL5000) += snd-soc-vf610-sgtl5000.o
+
# MPC5200 Platform Support
obj-$(CONFIG_SND_MPC52xx_DMA) += mpc5200_dma.o
obj-$(CONFIG_SND_SOC_MPC5200_I2S) += mpc5200_psc_i2s.o
diff --git a/sound/soc/fsl/vf610-sgtl5000.c b/sound/soc/fsl/vf610-sgtl5000.c
new file mode 100644
index 0000000..75337bf
--- /dev/null
+++ b/sound/soc/fsl/vf610-sgtl5000.c
@@ -0,0 +1,178 @@
+/*
+ * Freescale ALSA SoC Audio using SGTL5000 as codec.
+ *
+ * Copyright 2012-2013 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+#include "../codecs/sgtl5000.h"
+#include "fsl_sai.h"
+
+static unsigned int sysclk_rate;
+
+static int vf610_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+ int ret;
+ struct device *dev = rtd->card->dev;
+
+ ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK,
+ sysclk_rate, SND_SOC_CLOCK_IN);
+ if (ret) {
+ dev_err(dev, "could not set codec driver clock params :%d\n",
+ ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, FSL_SAI_CLK_BUS,
+ sysclk_rate, SND_SOC_CLOCK_OUT);
+ if (ret) {
+ dev_err(dev, "could not set cpu dai driver clock params :%d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct snd_soc_dai_link vf610_sgtl5000_dai = {
+ .name = "HiFi",
+ .stream_name = "HiFi",
+ .codec_dai_name = "sgtl5000",
+ .init = &vf610_sgtl5000_dai_init,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM,
+};
+
+static const struct snd_soc_dapm_widget vf610_sgtl5000_dapm_widgets[] = {
+ SND_SOC_DAPM_MIC("Mic Jack", NULL),
+ SND_SOC_DAPM_LINE("Line In Jack", NULL),
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_SPK("Line Out Jack", NULL),
+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static struct snd_soc_card vf610_sgtl5000_card = {
+ .owner = THIS_MODULE,
+ .num_links = 1,
+ .dai_link = &vf610_sgtl5000_dai,
+ .dapm_widgets = vf610_sgtl5000_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(vf610_sgtl5000_dapm_widgets),
+};
+
+static int vf610_sgtl5000_parse_dt(struct platform_device *pdev)
+{
+ int ret;
+ struct device_node *sai_np, *codec_np;
+ struct clk *codec_clk;
+ struct i2c_client *codec_dev;
+ struct device_node *np = pdev->dev.of_node;
+
+ ret = snd_soc_of_parse_card_name(&vf610_sgtl5000_card, "model");
+ if (ret)
+ return ret;
+
+ ret = snd_soc_of_parse_audio_routing(&vf610_sgtl5000_card,
+ "audio-routing");
+ if (ret)
+ return ret;
+
+ sai_np = of_parse_phandle(np, "saif-controller", 0);
+ if (!sai_np) {
+ dev_err(&pdev->dev, "\"saif-controller\" phandle missing or "
+ "invalid\n");
+ return -EINVAL;
+ }
+ vf610_sgtl5000_dai.cpu_of_node = sai_np;
+ vf610_sgtl5000_dai.platform_of_node = sai_np;
+
+ codec_np = of_parse_phandle(np, "audio-codec", 0);
+ if (!codec_np) {
+ dev_err(&pdev->dev, "\"audio-codec\" phandle missing or "
+ "invalid\n");
+ ret = -EINVAL;
+ goto sai_np_fail;
+ }
+ vf610_sgtl5000_dai.codec_of_node = codec_np;
+
+ codec_dev = of_find_i2c_device_by_node(codec_np);
+ if (!codec_dev) {
+ dev_err(&pdev->dev, "failed to find codec platform device\n");
+ ret = PTR_ERR(codec_dev);
+ goto codec_np_fail;
+ }
+
+ codec_clk = devm_clk_get(&codec_dev->dev, NULL);
+ if (IS_ERR(codec_clk)) {
+ dev_err(&pdev->dev, "failed to get codec clock\n");
+ ret = PTR_ERR(codec_clk);
+ goto codec_np_fail;
+ }
+
+ sysclk_rate = clk_get_rate(codec_clk);
+
+codec_np_fail:
+ of_node_put(codec_np);
+sai_np_fail:
+ of_node_put(sai_np);
+
+ return ret;
+}
+
+static int vf610_sgtl5000_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ vf610_sgtl5000_card.dev = &pdev->dev;
+
+ ret = vf610_sgtl5000_parse_dt(pdev);
+ if (ret) {
+ dev_err(&pdev->dev, "parse sgtl5000 device tree failed :%d\n",
+ ret);
+ return ret;
+ }
+
+ ret = devm_snd_soc_register_card(&pdev->dev, &vf610_sgtl5000_card);
+ if (ret) {
+ dev_err(&pdev->dev, "TWR-AUDIO-SGTL board required :%d\n",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int vf610_sgtl5000_remove(struct platform_device *pdev)
+{
+ return 0;
+}
+
+static const struct of_device_id vf610_sgtl5000_dt_ids[] = {
+ { .compatible = "fsl,vf610-sgtl5000", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, vf610_sgtl5000_dt_ids);
+
+static struct platform_driver vf610_sgtl5000_driver = {
+ .driver = {
+ .name = "vf610-sgtl5000",
+ .owner = THIS_MODULE,
+ .of_match_table = vf610_sgtl5000_dt_ids,
+ },
+ .probe = vf610_sgtl5000_probe,
+ .remove = vf610_sgtl5000_remove,
+};
+module_platform_driver(vf610_sgtl5000_driver);
+
+MODULE_AUTHOR("Xiubo Li <Li.Xiubo@xxxxxxxxxxxxx>");
+MODULE_DESCRIPTION("Freescale SGTL5000 ASoC driver");
+MODULE_LICENSE("GPL");
--
1.8.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/