ASoC: SMDK: WM8994: Add device tree support for machine file
Add the basic device tree based lookup. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -0,0 +1,14 @@
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Samsung SMDK audio complex
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Required properties:
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- compatible : "samsung,smdk-wm8994"
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- samsung,i2s-controller: The phandle of the Samsung I2S0 controller
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- samsung,audio-codec: The phandle of the WM8994 audio codec
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Example:
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sound {
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compatible = "samsung,smdk-wm8994";
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samsung,i2s-controller = <&i2s0>;
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samsung,audio-codec = <&wm8994>;
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};
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@ -49,6 +49,11 @@
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compatible = "samsung,s524ad0xd1";
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compatible = "samsung,s524ad0xd1";
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reg = <0x51>;
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reg = <0x51>;
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};
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};
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wm8994: wm8994@1a {
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compatible = "wlf,wm8994";
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reg = <0x1a>;
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};
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};
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};
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i2c@121D0000 {
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i2c@121D0000 {
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@ -205,17 +210,24 @@
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samsung,mfc-l = <0x51000000 0x800000>;
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samsung,mfc-l = <0x51000000 0x800000>;
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};
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};
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i2s@03830000 {
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i2s0: i2s@03830000 {
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gpios = <&gpz 0 2 0 0>, <&gpz 1 2 0 0>, <&gpz 2 2 0 0>,
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gpios = <&gpz 0 2 0 0>, <&gpz 1 2 0 0>, <&gpz 2 2 0 0>,
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<&gpz 3 2 0 0>, <&gpz 4 2 0 0>, <&gpz 5 2 0 0>,
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<&gpz 3 2 0 0>, <&gpz 4 2 0 0>, <&gpz 5 2 0 0>,
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<&gpz 6 2 0 0>;
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<&gpz 6 2 0 0>;
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};
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};
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i2s@12D60000 {
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i2s1: i2s@12D60000 {
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status = "disabled";
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status = "disabled";
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};
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};
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i2s@12D70000 {
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i2s2: i2s@12D70000 {
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status = "disabled";
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status = "disabled";
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};
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};
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sound {
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compatible = "samsung,smdk-wm8994";
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samsung,i2s-controller = <&i2s0>;
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samsung,audio-codec = <&wm8994>;
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};
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};
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};
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@ -269,7 +269,7 @@
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#size-cells = <0>;
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#size-cells = <0>;
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};
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};
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i2s@03830000 {
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i2s0: i2s@03830000 {
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compatible = "samsung,i2s-v5";
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compatible = "samsung,i2s-v5";
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reg = <0x03830000 0x100>;
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reg = <0x03830000 0x100>;
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dmas = <&pdma0 10
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dmas = <&pdma0 10
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@ -282,7 +282,7 @@
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samsung,idma-addr = <0x03000000>;
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samsung,idma-addr = <0x03000000>;
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};
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};
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i2s@12D60000 {
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i2s1: i2s@12D60000 {
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compatible = "samsung,i2s-v5";
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compatible = "samsung,i2s-v5";
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reg = <0x12D60000 0x100>;
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reg = <0x12D60000 0x100>;
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dmas = <&pdma1 12
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dmas = <&pdma1 12
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@ -290,7 +290,7 @@
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dma-names = "tx", "rx";
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dma-names = "tx", "rx";
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};
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};
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i2s@12D70000 {
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i2s2: i2s@12D70000 {
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compatible = "samsung,i2s-v5";
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compatible = "samsung,i2s-v5";
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reg = <0x12D70000 0x100>;
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reg = <0x12D70000 0x100>;
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dmas = <&pdma0 12
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dmas = <&pdma0 12
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@ -10,6 +10,7 @@
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#include "../codecs/wm8994.h"
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#include "../codecs/wm8994.h"
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#include <sound/pcm_params.h>
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#include <sound/pcm_params.h>
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#include <linux/module.h>
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#include <linux/module.h>
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#include <linux/of.h>
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/*
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/*
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* Default CFG switch settings to use this driver:
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* Default CFG switch settings to use this driver:
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@ -153,9 +154,25 @@ static struct snd_soc_card smdk = {
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static int smdk_audio_probe(struct platform_device *pdev)
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static int smdk_audio_probe(struct platform_device *pdev)
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{
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{
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int ret;
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int ret;
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struct device_node *np = pdev->dev.of_node;
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struct snd_soc_card *card = &smdk;
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struct snd_soc_card *card = &smdk;
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card->dev = &pdev->dev;
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card->dev = &pdev->dev;
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if (np) {
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smdk_dai[0].cpu_dai_name = NULL;
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smdk_dai[0].cpu_of_node = of_parse_phandle(np,
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"samsung,i2s-controller", 0);
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if (!smdk_dai[0].cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'samsung,i2s-controller' missing or invalid\n");
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ret = -EINVAL;
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}
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smdk_dai[0].platform_name = NULL;
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smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
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}
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ret = snd_soc_register_card(card);
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ret = snd_soc_register_card(card);
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if (ret)
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if (ret)
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@ -173,10 +190,19 @@ static int smdk_audio_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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#ifdef CONFIG_OF
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static const struct of_device_id samsung_wm8994_of_match[] = {
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{ .compatible = "samsung,smdk-wm8994", },
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{},
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};
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MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
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#endif /* CONFIG_OF */
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static struct platform_driver smdk_audio_driver = {
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static struct platform_driver smdk_audio_driver = {
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.driver = {
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.driver = {
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.name = "smdk-audio",
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.name = "smdk-audio",
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.owner = THIS_MODULE,
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(samsung_wm8994_of_match),
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},
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},
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.probe = smdk_audio_probe,
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.probe = smdk_audio_probe,
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.remove = smdk_audio_remove,
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.remove = smdk_audio_remove,
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