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280 lines
6.8 KiB
280 lines
6.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Rockchip machine ASoC driver for RK3288 boards that have an HDMI and analog |
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* audio output |
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* |
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* Copyright (c) 2016, Collabora Ltd. |
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* |
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* Authors: Sjoerd Simons <[email protected]>, |
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* Romain Perier <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <linux/gpio.h> |
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#include <linux/of_gpio.h> |
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#include <sound/core.h> |
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#include <sound/jack.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/soc-dapm.h> |
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#include "rockchip_i2s.h" |
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#define DRV_NAME "rk3288-snd-hdmi-analog" |
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struct rk_drvdata { |
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int gpio_hp_en; |
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int gpio_hp_det; |
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}; |
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static int rk_hp_power(struct snd_soc_dapm_widget *w, |
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struct snd_kcontrol *k, int event) |
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{ |
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struct rk_drvdata *machine = snd_soc_card_get_drvdata(w->dapm->card); |
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if (!gpio_is_valid(machine->gpio_hp_en)) |
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return 0; |
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gpio_set_value_cansleep(machine->gpio_hp_en, |
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SND_SOC_DAPM_EVENT_ON(event)); |
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return 0; |
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} |
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static struct snd_soc_jack headphone_jack; |
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static struct snd_soc_jack_pin headphone_jack_pins[] = { |
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{ |
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.pin = "Analog", |
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.mask = SND_JACK_HEADPHONE |
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}, |
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}; |
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static const struct snd_soc_dapm_widget rk_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Analog", rk_hp_power), |
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SND_SOC_DAPM_LINE("HDMI", NULL), |
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}; |
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static const struct snd_kcontrol_new rk_mc_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Analog"), |
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SOC_DAPM_PIN_SWITCH("HDMI"), |
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}; |
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static int rk_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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int ret = 0; |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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int mclk; |
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switch (params_rate(params)) { |
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case 8000: |
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case 16000: |
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case 24000: |
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case 32000: |
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case 48000: |
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case 64000: |
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case 96000: |
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mclk = 12288000; |
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break; |
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case 192000: |
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mclk = 24576000; |
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break; |
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case 11025: |
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case 22050: |
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case 44100: |
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case 88200: |
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mclk = 11289600; |
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break; |
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default: |
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return -EINVAL; |
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} |
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, |
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SND_SOC_CLOCK_OUT); |
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if (ret && ret != -ENOTSUPP) { |
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dev_err(codec_dai->dev, "Can't set cpu clock %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, |
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SND_SOC_CLOCK_IN); |
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if (ret && ret != -ENOTSUPP) { |
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dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); |
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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 struct snd_soc_jack_gpio rk_hp_jack_gpio = { |
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.name = "Headphone detection", |
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.report = SND_JACK_HEADPHONE, |
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.debounce_time = 150 |
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}; |
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static int rk_init(struct snd_soc_pcm_runtime *runtime) |
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{ |
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struct rk_drvdata *machine = snd_soc_card_get_drvdata(runtime->card); |
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/* Enable Headset Jack detection */ |
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if (gpio_is_valid(machine->gpio_hp_det)) { |
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snd_soc_card_jack_new(runtime->card, "Headphone Jack", |
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SND_JACK_HEADPHONE, &headphone_jack, |
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headphone_jack_pins, |
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ARRAY_SIZE(headphone_jack_pins)); |
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rk_hp_jack_gpio.gpio = machine->gpio_hp_det; |
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snd_soc_jack_add_gpios(&headphone_jack, 1, &rk_hp_jack_gpio); |
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} |
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return 0; |
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} |
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static const struct snd_soc_ops rk_ops = { |
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.hw_params = rk_hw_params, |
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}; |
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SND_SOC_DAILINK_DEFS(audio, |
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DAILINK_COMP_ARRAY(COMP_EMPTY()), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, NULL), |
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COMP_CODEC("hdmi-audio-codec.2.auto", "i2s-hifi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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static struct snd_soc_dai_link rk_dailink = { |
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.name = "Codecs", |
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.stream_name = "Audio", |
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.init = rk_init, |
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.ops = &rk_ops, |
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/* Set codecs as slave */ |
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS, |
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SND_SOC_DAILINK_REG(audio), |
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}; |
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static struct snd_soc_card snd_soc_card_rk = { |
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.name = "ROCKCHIP-I2S", |
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.dai_link = &rk_dailink, |
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.num_links = 1, |
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.num_aux_devs = 0, |
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.dapm_widgets = rk_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets), |
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.controls = rk_mc_controls, |
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.num_controls = ARRAY_SIZE(rk_mc_controls), |
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}; |
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static int snd_rk_mc_probe(struct platform_device *pdev) |
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{ |
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int ret = 0; |
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struct snd_soc_card *card = &snd_soc_card_rk; |
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struct device_node *np = pdev->dev.of_node; |
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struct rk_drvdata *machine; |
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struct of_phandle_args args; |
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machine = devm_kzalloc(&pdev->dev, sizeof(struct rk_drvdata), |
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GFP_KERNEL); |
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if (!machine) |
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return -ENOMEM; |
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card->dev = &pdev->dev; |
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machine->gpio_hp_det = of_get_named_gpio(np, |
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"rockchip,hp-det-gpios", 0); |
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if (!gpio_is_valid(machine->gpio_hp_det) && machine->gpio_hp_det != -ENODEV) |
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return machine->gpio_hp_det; |
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machine->gpio_hp_en = of_get_named_gpio(np, |
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"rockchip,hp-en-gpios", 0); |
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if (!gpio_is_valid(machine->gpio_hp_en) && machine->gpio_hp_en != -ENODEV) |
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return machine->gpio_hp_en; |
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if (gpio_is_valid(machine->gpio_hp_en)) { |
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ret = devm_gpio_request_one(&pdev->dev, machine->gpio_hp_en, |
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GPIOF_OUT_INIT_LOW, "hp_en"); |
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if (ret) { |
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dev_err(card->dev, "cannot get hp_en gpio\n"); |
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return ret; |
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} |
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} |
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ret = snd_soc_of_parse_card_name(card, "rockchip,model"); |
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if (ret) { |
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dev_err(card->dev, "SoC parse card name failed %d\n", ret); |
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return ret; |
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} |
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rk_dailink.codecs[0].of_node = of_parse_phandle(np, |
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"rockchip,audio-codec", |
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0); |
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if (!rk_dailink.codecs[0].of_node) { |
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dev_err(&pdev->dev, |
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"Property 'rockchip,audio-codec' missing or invalid\n"); |
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return -EINVAL; |
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} |
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ret = of_parse_phandle_with_fixed_args(np, "rockchip,audio-codec", |
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0, 0, &args); |
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if (ret) { |
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dev_err(&pdev->dev, |
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"Unable to parse property 'rockchip,audio-codec'\n"); |
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return ret; |
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} |
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ret = snd_soc_get_dai_name(&args, &rk_dailink.codecs[0].dai_name); |
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if (ret) { |
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dev_err(&pdev->dev, "Unable to get codec_dai_name\n"); |
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return ret; |
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} |
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rk_dailink.cpus->of_node = of_parse_phandle(np, "rockchip,i2s-controller", |
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0); |
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if (!rk_dailink.cpus->of_node) { |
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dev_err(&pdev->dev, |
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"Property 'rockchip,i2s-controller' missing or invalid\n"); |
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return -EINVAL; |
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} |
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rk_dailink.platforms->of_node = rk_dailink.cpus->of_node; |
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ret = snd_soc_of_parse_audio_routing(card, "rockchip,routing"); |
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if (ret) { |
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dev_err(&pdev->dev, |
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"Unable to parse 'rockchip,routing' property\n"); |
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return ret; |
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} |
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snd_soc_card_set_drvdata(card, machine); |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) |
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return dev_err_probe(&pdev->dev, ret, |
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"Soc register card failed\n"); |
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return ret; |
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} |
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static const struct of_device_id rockchip_sound_of_match[] = { |
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{ .compatible = "rockchip,rk3288-hdmi-analog", }, |
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{}, |
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}; |
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MODULE_DEVICE_TABLE(of, rockchip_sound_of_match); |
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static struct platform_driver rockchip_sound_driver = { |
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.probe = snd_rk_mc_probe, |
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.driver = { |
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.name = DRV_NAME, |
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.pm = &snd_soc_pm_ops, |
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.of_match_table = rockchip_sound_of_match, |
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}, |
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}; |
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module_platform_driver(rockchip_sound_driver); |
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MODULE_AUTHOR("Sjoerd Simons <[email protected]>"); |
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MODULE_DESCRIPTION("Rockchip RK3288 machine ASoC driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:" DRV_NAME);
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