ASoC: fsl: add imx-sgtl5000 machine driver
This is the initial imx-sgtl5000 machine driver support with only playback dai link implemented. More features can be added on top of it later. It's a device tree only machine driver working with fsl_ssi driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -0,0 +1,24 @@
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Freescale i.MX audio complex with SGTL5000 codec
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Required properties:
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- compatible : "fsl,imx-audio-sgtl5000"
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- model : The user-visible name of this sound complex
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- ssi-controller : The phandle of the i.MX SSI controller
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- audio-codec : The phandle of the SGTL5000 audio codec
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- mux-int-port : The internal port of the i.MX audio muxer (AUDMUX)
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- mux-ext-port : The external port of the i.MX audio muxer
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Note: The AUDMUX port numbering should start at 1, which is consistent with
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hardware manual.
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Example:
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sound {
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compatible = "fsl,imx51-babbage-sgtl5000",
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"fsl,imx-audio-sgtl5000";
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model = "imx51-babbage-sgtl5000";
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ssi-controller = <&ssi1>;
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audio-codec = <&sgtl5000>;
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mux-int-port = <1>;
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mux-ext-port = <3>;
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};
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@ -164,4 +164,16 @@ config SND_SOC_EUKREA_TLV320
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Enable I2S based access to the TLV320AIC23B codec attached
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to the SSI interface
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config SND_SOC_IMX_SGTL5000
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tristate "SoC Audio support for i.MX boards with sgtl5000"
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depends on OF && I2C
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select SND_SOC_SGTL5000
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select SND_SOC_IMX_PCM_DMA
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select SND_SOC_IMX_AUDMUX
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select SND_SOC_FSL_SSI
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select SND_SOC_FSL_UTILS
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help
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Say Y if you want to add support for SoC audio on an i.MX board with
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a sgtl5000 codec.
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endif # SND_IMX_SOC
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@ -40,8 +40,10 @@ snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
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snd-soc-phycore-ac97-objs := phycore-ac97.o
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snd-soc-mx27vis-aic32x4-objs := mx27vis-aic32x4.o
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snd-soc-wm1133-ev1-objs := wm1133-ev1.o
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snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
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obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
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obj-$(CONFIG_SND_SOC_PHYCORE_AC97) += snd-soc-phycore-ac97.o
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obj-$(CONFIG_SND_SOC_MX27VIS_AIC32X4) += snd-soc-mx27vis-aic32x4.o
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obj-$(CONFIG_SND_MXC_SOC_WM1133_EV1) += snd-soc-wm1133-ev1.o
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obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
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177
sound/soc/fsl/imx-sgtl5000.c
Normal file
177
sound/soc/fsl/imx-sgtl5000.c
Normal file
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/*
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* Copyright 2012 Freescale Semiconductor, Inc.
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* Copyright 2012 Linaro Ltd.
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <sound/soc.h>
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#include "../codecs/sgtl5000.h"
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#include "imx-audmux.h"
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#define DAI_NAME_SIZE 32
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struct imx_sgtl5000_data {
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struct snd_soc_dai_link dai;
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struct snd_soc_card card;
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char codec_dai_name[DAI_NAME_SIZE];
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char platform_name[DAI_NAME_SIZE];
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unsigned int clk_frequency;
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};
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static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct imx_sgtl5000_data *data = container_of(rtd->card,
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struct imx_sgtl5000_data, card);
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struct device *dev = rtd->card->dev;
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int ret;
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ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK,
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data->clk_frequency, SND_SOC_CLOCK_IN);
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if (ret) {
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dev_err(dev, "could not set codec driver clock params\n");
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return ret;
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}
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return 0;
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}
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static int __devinit imx_sgtl5000_probe(struct platform_device *pdev)
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{
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struct device_node *np = pdev->dev.of_node;
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struct device_node *ssi_np, *codec_np;
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struct platform_device *ssi_pdev;
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struct imx_sgtl5000_data *data;
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int int_port, ext_port;
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int ret;
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ret = of_property_read_u32(np, "mux-int-port", &int_port);
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if (ret) {
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dev_err(&pdev->dev, "mux-int-port missing or invalid\n");
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return ret;
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}
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ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
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if (ret) {
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dev_err(&pdev->dev, "mux-ext-port missing or invalid\n");
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return ret;
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}
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/*
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* The port numbering in the hardware manual starts at 1, while
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* the audmux API expects it starts at 0.
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*/
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int_port--;
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ext_port--;
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ret = imx_audmux_v2_configure_port(int_port,
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IMX_AUDMUX_V2_PTCR_SYN |
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IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
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IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
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IMX_AUDMUX_V2_PTCR_TFSDIR |
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IMX_AUDMUX_V2_PTCR_TCLKDIR,
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IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
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if (ret) {
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dev_err(&pdev->dev, "audmux internal port setup failed\n");
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return ret;
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}
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imx_audmux_v2_configure_port(ext_port,
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IMX_AUDMUX_V2_PTCR_SYN |
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IMX_AUDMUX_V2_PTCR_TCSEL(int_port),
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IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
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if (ret) {
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dev_err(&pdev->dev, "audmux external port setup failed\n");
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return ret;
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}
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ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
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codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
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if (!ssi_np || !codec_np) {
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dev_err(&pdev->dev, "phandle missing or invalid\n");
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return -EINVAL;
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}
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ssi_pdev = of_find_device_by_node(ssi_np);
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if (!ssi_pdev) {
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dev_err(&pdev->dev, "failed to find SSI platform device\n");
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return -EINVAL;
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}
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data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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ret = of_property_read_u32(codec_np, "clock-frequency",
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&data->clk_frequency);
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if (ret) {
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dev_err(&pdev->dev, "clock-frequency missing or invalid\n");
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return ret;
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}
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data->dai.name = "HiFi";
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data->dai.stream_name = "HiFi";
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data->dai.codec_dai_name = "sgtl5000";
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data->dai.codec_of_node = codec_np;
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data->dai.cpu_dai_name = dev_name(&ssi_pdev->dev);
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data->dai.platform_name = "imx-pcm-audio";
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data->dai.init = &imx_sgtl5000_dai_init;
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data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBM_CFM;
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data->card.dev = &pdev->dev;
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ret = snd_soc_of_parse_card_name(&data->card, "model");
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if (ret)
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return ret;
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data->card.num_links = 1;
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data->card.dai_link = &data->dai;
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ret = snd_soc_register_card(&data->card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
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return ret;
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}
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platform_set_drvdata(pdev, data);
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of_node_put(ssi_np);
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of_node_put(codec_np);
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return 0;
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}
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static int __devexit imx_sgtl5000_remove(struct platform_device *pdev)
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{
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struct imx_sgtl5000_data *data = platform_get_drvdata(pdev);
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snd_soc_unregister_card(&data->card);
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return 0;
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}
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static const struct of_device_id imx_sgtl5000_dt_ids[] = {
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{ .compatible = "fsl,imx-audio-sgtl5000", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids);
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static struct platform_driver imx_sgtl5000_driver = {
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.driver = {
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.name = "imx-sgtl5000",
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.owner = THIS_MODULE,
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.of_match_table = imx_sgtl5000_dt_ids,
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},
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.probe = imx_sgtl5000_probe,
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.remove = __devexit_p(imx_sgtl5000_remove),
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};
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module_platform_driver(imx_sgtl5000_driver);
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MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
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MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:imx-sgtl5000");
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