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282 lines
7.8 KiB
282 lines
7.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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// |
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// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. |
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// |
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// Author: Cezary Rojewski <[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 <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-acpi.h> |
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#include <sound/soc-dapm.h> |
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#include <uapi/linux/input-event-codes.h> |
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#include "../../../codecs/da7219.h" |
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#include "../../../codecs/da7219-aad.h" |
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#define DA7219_DAI_NAME "da7219-hifi" |
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static const struct snd_kcontrol_new card_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Headphone Jack"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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}; |
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static int platform_clock_control(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 snd_soc_dapm_context *dapm = w->dapm; |
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struct snd_soc_card *card = dapm->card; |
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struct snd_soc_dai *codec_dai; |
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int ret = 0; |
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codec_dai = snd_soc_card_get_codec_dai(card, DA7219_DAI_NAME); |
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if (!codec_dai) { |
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dev_err(card->dev, "Codec dai not found. Unable to set/unset codec pll\n"); |
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return -EIO; |
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} |
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if (SND_SOC_DAPM_EVENT_OFF(event)) { |
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ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0); |
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if (ret) |
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dev_err(card->dev, "failed to stop PLL: %d\n", ret); |
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} else if (SND_SOC_DAPM_EVENT_ON(event)) { |
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ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_PLL_SRM, |
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0, DA7219_PLL_FREQ_OUT_98304); |
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if (ret) |
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dev_err(card->dev, "failed to start PLL: %d\n", ret); |
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} |
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return ret; |
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} |
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static const struct snd_soc_dapm_widget card_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone Jack", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, |
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SND_SOC_DAPM_POST_PMD | SND_SOC_DAPM_PRE_PMU), |
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}; |
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static const struct snd_soc_dapm_route card_base_routes[] = { |
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/* HP jack connectors - unknown if we have jack detection */ |
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{"Headphone Jack", NULL, "HPL"}, |
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{"Headphone Jack", NULL, "HPR"}, |
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{"MIC", NULL, "Headset Mic"}, |
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{ "Headphone Jack", NULL, "Platform Clock" }, |
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{ "Headset Mic", NULL, "Platform Clock" }, |
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}; |
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static int avs_da7219_codec_init(struct snd_soc_pcm_runtime *runtime) |
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{ |
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struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; |
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struct snd_soc_card *card = runtime->card; |
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struct snd_soc_jack *jack; |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); |
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int clk_freq; |
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int ret; |
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jack = snd_soc_card_get_drvdata(card); |
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clk_freq = 19200000; |
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ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, clk_freq, SND_SOC_CLOCK_IN); |
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if (ret) { |
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dev_err(card->dev, "can't set codec sysclk configuration\n"); |
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return ret; |
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} |
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/* |
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* Headset buttons map to the google Reference headset. |
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* These can be configured by userspace. |
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*/ |
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ret = snd_soc_card_jack_new(card, "Headset Jack", |
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SND_JACK_HEADSET | SND_JACK_BTN_0 | |
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SND_JACK_BTN_1 | SND_JACK_BTN_2 | |
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SND_JACK_BTN_3 | SND_JACK_LINEOUT, jack); |
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if (ret) { |
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dev_err(card->dev, "Headset Jack creation failed: %d\n", ret); |
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return ret; |
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} |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); |
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da7219_aad_jack_det(component, jack); |
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return 0; |
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} |
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static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, |
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struct snd_soc_dai_link **dai_link) |
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{ |
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struct snd_soc_dai_link_component *platform; |
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struct snd_soc_dai_link *dl; |
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dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); |
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platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); |
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if (!dl || !platform) |
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return -ENOMEM; |
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platform->name = platform_name; |
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dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); |
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dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); |
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dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); |
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if (!dl->name || !dl->cpus || !dl->codecs) |
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return -ENOMEM; |
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dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); |
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dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-DLGS7219:00"); |
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dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, DA7219_DAI_NAME); |
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if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) |
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return -ENOMEM; |
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dl->num_cpus = 1; |
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dl->num_codecs = 1; |
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dl->platforms = platform; |
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dl->num_platforms = 1; |
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dl->id = 0; |
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dl->dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; |
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dl->init = avs_da7219_codec_init; |
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dl->nonatomic = 1; |
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dl->no_pcm = 1; |
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dl->dpcm_capture = 1; |
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dl->dpcm_playback = 1; |
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*dai_link = dl; |
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return 0; |
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} |
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static int avs_create_dapm_routes(struct device *dev, int ssp_port, |
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struct snd_soc_dapm_route **routes, int *num_routes) |
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{ |
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struct snd_soc_dapm_route *dr; |
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const int num_base = ARRAY_SIZE(card_base_routes); |
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const int num_dr = num_base + 2; |
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int idx; |
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dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL); |
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if (!dr) |
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return -ENOMEM; |
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memcpy(dr, card_base_routes, num_base * sizeof(*dr)); |
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idx = num_base; |
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dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Playback"); |
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dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port); |
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if (!dr[idx].sink || !dr[idx].source) |
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return -ENOMEM; |
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idx++; |
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dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port); |
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dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Capture"); |
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if (!dr[idx].sink || !dr[idx].source) |
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return -ENOMEM; |
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*routes = dr; |
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*num_routes = num_dr; |
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return 0; |
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} |
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static int avs_card_set_jack(struct snd_soc_card *card, struct snd_soc_jack *jack) |
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{ |
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struct snd_soc_component *component; |
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for_each_card_components(card, component) |
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snd_soc_component_set_jack(component, jack, NULL); |
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return 0; |
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} |
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static int avs_card_remove(struct snd_soc_card *card) |
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{ |
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return avs_card_set_jack(card, NULL); |
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} |
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static int avs_card_suspend_pre(struct snd_soc_card *card) |
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{ |
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return avs_card_set_jack(card, NULL); |
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} |
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static int avs_card_resume_post(struct snd_soc_card *card) |
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{ |
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struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card); |
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return avs_card_set_jack(card, jack); |
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} |
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static int avs_da7219_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_dapm_route *routes; |
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struct snd_soc_dai_link *dai_link; |
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struct snd_soc_acpi_mach *mach; |
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struct snd_soc_card *card; |
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struct snd_soc_jack *jack; |
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struct device *dev = &pdev->dev; |
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const char *pname; |
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int num_routes, ssp_port, ret; |
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mach = dev_get_platdata(dev); |
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pname = mach->mach_params.platform; |
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ssp_port = __ffs(mach->mach_params.i2s_link_mask); |
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ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); |
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if (ret) { |
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dev_err(dev, "Failed to create dai link: %d", ret); |
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return ret; |
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} |
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ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes); |
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if (ret) { |
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dev_err(dev, "Failed to create dapm routes: %d", ret); |
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return ret; |
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} |
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jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL); |
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card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); |
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if (!jack || !card) |
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return -ENOMEM; |
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card->name = "avs_da7219"; |
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card->dev = dev; |
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card->owner = THIS_MODULE; |
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card->remove = avs_card_remove; |
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card->suspend_pre = avs_card_suspend_pre; |
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card->resume_post = avs_card_resume_post; |
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card->dai_link = dai_link; |
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card->num_links = 1; |
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card->controls = card_controls; |
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card->num_controls = ARRAY_SIZE(card_controls); |
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card->dapm_widgets = card_widgets; |
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card->num_dapm_widgets = ARRAY_SIZE(card_widgets); |
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card->dapm_routes = routes; |
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card->num_dapm_routes = num_routes; |
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card->fully_routed = true; |
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snd_soc_card_set_drvdata(card, jack); |
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ret = snd_soc_fixup_dai_links_platform_name(card, pname); |
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if (ret) |
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return ret; |
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return devm_snd_soc_register_card(dev, card); |
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} |
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static struct platform_driver avs_da7219_driver = { |
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.probe = avs_da7219_probe, |
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.driver = { |
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.name = "avs_da7219", |
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.pm = &snd_soc_pm_ops, |
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}, |
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}; |
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module_platform_driver(avs_da7219_driver); |
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MODULE_AUTHOR("Cezary Rojewski <[email protected]>"); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS("platform:avs_da7219");
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