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The driver can be compile tested with !CONFIG_OF making certain data unused: sound/soc/qcom/lpass-apq8016.c:294:34: warning: ‘apq8016_lpass_cpu_device_id’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201125164452.89239-10-krzk@kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
188 lines
5.0 KiB
C
188 lines
5.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2015 The Linux Foundation. All rights reserved.
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*/
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#include <linux/device.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/clk.h>
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#include <linux/platform_device.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/jack.h>
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#include <sound/soc.h>
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#include <uapi/linux/input-event-codes.h>
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#include <dt-bindings/sound/apq8016-lpass.h>
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#include "common.h"
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struct apq8016_sbc_data {
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struct snd_soc_card card;
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void __iomem *mic_iomux;
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void __iomem *spkr_iomux;
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struct snd_soc_jack jack;
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bool jack_setup;
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};
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#define MIC_CTRL_TER_WS_SLAVE_SEL BIT(21)
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#define MIC_CTRL_QUA_WS_SLAVE_SEL_10 BIT(17)
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#define MIC_CTRL_TLMM_SCLK_EN BIT(1)
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#define SPKR_CTL_PRI_WS_SLAVE_SEL_11 (BIT(17) | BIT(16))
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#define DEFAULT_MCLK_RATE 9600000
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static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
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{
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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;
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struct snd_soc_component *component;
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struct snd_soc_card *card = rtd->card;
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struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
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int i, rval;
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switch (cpu_dai->id) {
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case MI2S_PRIMARY:
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writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
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pdata->spkr_iomux);
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break;
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case MI2S_QUATERNARY:
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/* Configure the Quat MI2S to TLMM */
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writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
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MIC_CTRL_TLMM_SCLK_EN,
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pdata->mic_iomux);
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break;
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case MI2S_TERTIARY:
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writel(readl(pdata->mic_iomux) | MIC_CTRL_TER_WS_SLAVE_SEL |
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MIC_CTRL_TLMM_SCLK_EN,
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pdata->mic_iomux);
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break;
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default:
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dev_err(card->dev, "unsupported cpu dai configuration\n");
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return -EINVAL;
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}
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if (!pdata->jack_setup) {
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struct snd_jack *jack;
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rval = snd_soc_card_jack_new(card, "Headset Jack",
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SND_JACK_HEADSET |
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SND_JACK_HEADPHONE |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3 |
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SND_JACK_BTN_4,
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&pdata->jack, NULL, 0);
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if (rval < 0) {
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dev_err(card->dev, "Unable to add Headphone Jack\n");
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return rval;
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}
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jack = pdata->jack.jack;
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snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
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snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
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snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
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snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
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pdata->jack_setup = true;
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}
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for_each_rtd_codec_dais(rtd, i, codec_dai) {
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component = codec_dai->component;
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/* Set default mclk for internal codec */
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rval = snd_soc_component_set_sysclk(component, 0, 0, DEFAULT_MCLK_RATE,
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SND_SOC_CLOCK_IN);
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if (rval != 0 && rval != -ENOTSUPP) {
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dev_warn(card->dev, "Failed to set mclk: %d\n", rval);
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return rval;
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}
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rval = snd_soc_component_set_jack(component, &pdata->jack, NULL);
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if (rval != 0 && rval != -ENOTSUPP) {
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dev_warn(card->dev, "Failed to set jack: %d\n", rval);
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return rval;
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}
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}
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return 0;
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}
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static void apq8016_sbc_add_ops(struct snd_soc_card *card)
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{
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struct snd_soc_dai_link *link;
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int i;
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for_each_card_prelinks(card, i, link)
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link->init = apq8016_sbc_dai_init;
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}
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static const struct snd_soc_dapm_widget apq8016_sbc_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Handset Mic", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Secondary Mic", NULL),
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SND_SOC_DAPM_MIC("Digital Mic1", NULL),
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SND_SOC_DAPM_MIC("Digital Mic2", NULL),
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};
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static int apq8016_sbc_platform_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct snd_soc_card *card;
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struct apq8016_sbc_data *data;
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struct resource *res;
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int ret;
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data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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card = &data->card;
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card->dev = dev;
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card->owner = THIS_MODULE;
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card->dapm_widgets = apq8016_sbc_dapm_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(apq8016_sbc_dapm_widgets);
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ret = qcom_snd_parse_of(card);
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if (ret)
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return ret;
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
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data->mic_iomux = devm_ioremap_resource(dev, res);
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if (IS_ERR(data->mic_iomux))
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return PTR_ERR(data->mic_iomux);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
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data->spkr_iomux = devm_ioremap_resource(dev, res);
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if (IS_ERR(data->spkr_iomux))
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return PTR_ERR(data->spkr_iomux);
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snd_soc_card_set_drvdata(card, data);
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apq8016_sbc_add_ops(card);
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return devm_snd_soc_register_card(&pdev->dev, card);
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}
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static const struct of_device_id apq8016_sbc_device_id[] __maybe_unused = {
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{ .compatible = "qcom,apq8016-sbc-sndcard" },
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{},
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};
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MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
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static struct platform_driver apq8016_sbc_platform_driver = {
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.driver = {
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.name = "qcom-apq8016-sbc",
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.of_match_table = of_match_ptr(apq8016_sbc_device_id),
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},
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.probe = apq8016_sbc_platform_probe,
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};
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module_platform_driver(apq8016_sbc_platform_driver);
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MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
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MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
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MODULE_LICENSE("GPL v2");
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