コード例 #1
0
static int snd_cht_mc_probe(struct platform_device *pdev)
{
	const struct dmi_system_id *dmi_id;
	struct device *dev = &pdev->dev;
	int ret_val = 0;
	struct cht_mc_private *drv;
	const char *mclk_name;
	int quirks = 0;

	dmi_id = dmi_first_match(cht_max98090_quirk_table);
	if (dmi_id)
		quirks = (unsigned long)dmi_id->driver_data;

	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
	if (!drv)
		return -ENOMEM;

	drv->ts3a227e_present = acpi_dev_found("104C227E");
	if (!drv->ts3a227e_present) {
		/* no need probe TI jack detection chip */
		snd_soc_card_cht.aux_dev = NULL;
		snd_soc_card_cht.num_aux_devs = 0;

		ret_val = devm_acpi_dev_add_driver_gpios(dev->parent,
							 acpi_max98090_gpios);
		if (ret_val)
			dev_dbg(dev, "Unable to add GPIO mapping table\n");
	}

	/* register the soc card */
	snd_soc_card_cht.dev = &pdev->dev;
	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);

	if (quirks & QUIRK_PMC_PLT_CLK_0)
		mclk_name = "pmc_plt_clk_0";
	else
		mclk_name = "pmc_plt_clk_3";

	drv->mclk = devm_clk_get(&pdev->dev, mclk_name);
	if (IS_ERR(drv->mclk)) {
		dev_err(&pdev->dev,
			"Failed to get MCLK from %s: %ld\n",
			mclk_name, PTR_ERR(drv->mclk));
		return PTR_ERR(drv->mclk);
	}

	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
	if (ret_val) {
		dev_err(&pdev->dev,
			"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, &snd_soc_card_cht);
	return ret_val;
}
コード例 #2
0
ファイル: cht_bsw_rt5645.c プロジェクト: AlexShiLucky/linux
static int snd_cht_mc_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = snd_soc_cards[0].soc_card;
	struct snd_soc_acpi_mach *mach;
	struct cht_mc_private *drv;
	const char *i2c_name = NULL;
	bool found = false;
	bool is_bytcr = false;
	int dai_index = 0;
	int ret_val = 0;
	int i;

	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
	if (!drv)
		return -ENOMEM;

	mach = (&pdev->dev)->platform_data;

	for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
		if (acpi_dev_found(snd_soc_cards[i].codec_id) &&
			(!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) {
			dev_dbg(&pdev->dev,
				"found codec %s\n", snd_soc_cards[i].codec_id);
			card = snd_soc_cards[i].soc_card;
			drv->acpi_card = &snd_soc_cards[i];
			found = true;
			break;
		}
	}

	if (!found) {
		dev_err(&pdev->dev, "No matching HID found in supported list\n");
		return -ENODEV;
	}

	card->dev = &pdev->dev;
	sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id);

	/* set correct codec name */
	for (i = 0; i < ARRAY_SIZE(cht_dailink); i++)
		if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) {
			card->dai_link[i].codec_name = drv->codec_name;
			dai_index = i;
		}

	/* fixup codec name based on HID */
	i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
	if (i2c_name) {
		snprintf(cht_rt5645_codec_name, sizeof(cht_rt5645_codec_name),
			"%s%s", "i2c-", i2c_name);
		cht_dailink[dai_index].codec_name = cht_rt5645_codec_name;
	}

	/*
	 * swap SSP0 if bytcr is detected
	 * (will be overridden if DMI quirk is detected)
	 */
	if (is_valleyview()) {
		if (mach->mach_params.acpi_ipc_irq_index == 0)
			is_bytcr = true;
	}

	if (is_bytcr) {
		/*
		 * Baytrail CR platforms may have CHAN package in BIOS, try
		 * to find relevant routing quirk based as done on Windows
		 * platforms. We have to read the information directly from the
		 * BIOS, at this stage the card is not created and the links
		 * with the codec driver/pdata are non-existent
		 */

		struct acpi_chan_package chan_package;

		/* format specified: 2 64-bit integers */
		struct acpi_buffer format = {sizeof("NN"), "NN"};
		struct acpi_buffer state = {0, NULL};
		struct snd_soc_acpi_package_context pkg_ctx;
		bool pkg_found = false;

		state.length = sizeof(chan_package);
		state.pointer = &chan_package;

		pkg_ctx.name = "CHAN";
		pkg_ctx.length = 2;
		pkg_ctx.format = &format;
		pkg_ctx.state = &state;
		pkg_ctx.data_valid = false;

		pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
							       &pkg_ctx);
		if (pkg_found) {
			if (chan_package.aif_value == 1) {
				dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
				cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF1;
			} else  if (chan_package.aif_value == 2) {
				dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
				cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
			} else {
				dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
				pkg_found = false;
			}
		}

		if (!pkg_found) {
			/* no BIOS indications, assume SSP0-AIF2 connection */
			cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
		}
	}

	/* check quirks before creating card */
	dmi_check_system(cht_rt5645_quirk_table);
	log_quirks(&pdev->dev);

	if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) ||
		(cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {

		/* fixup codec aif name */
		snprintf(cht_rt5645_codec_aif_name,
			sizeof(cht_rt5645_codec_aif_name),
			"%s", "rt5645-aif2");

		cht_dailink[dai_index].codec_dai_name =
			cht_rt5645_codec_aif_name;
	}

	if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) ||
		(cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {

		/* fixup cpu dai name name */
		snprintf(cht_rt5645_cpu_dai_name,
			sizeof(cht_rt5645_cpu_dai_name),
			"%s", "ssp0-port");

		cht_dailink[dai_index].cpu_dai_name =
			cht_rt5645_cpu_dai_name;
	}

	drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
	if (IS_ERR(drv->mclk)) {
		dev_err(&pdev->dev,
			"Failed to get MCLK from pmc_plt_clk_3: %ld\n",
			PTR_ERR(drv->mclk));
		return PTR_ERR(drv->mclk);
	}

	snd_soc_card_set_drvdata(card, drv);
	ret_val = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret_val) {
		dev_err(&pdev->dev,
			"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, card);
	return ret_val;
}
コード例 #3
0
ファイル: cht_bsw_max98090_ti.c プロジェクト: avagin/linux
static int snd_cht_mc_probe(struct platform_device *pdev)
{
	const struct dmi_system_id *dmi_id;
	struct device *dev = &pdev->dev;
	int ret_val = 0;
	struct cht_mc_private *drv;
	const char *mclk_name;
	struct snd_soc_acpi_mach *mach;
	const char *platform_name;

	drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
	if (!drv)
		return -ENOMEM;

	dmi_id = dmi_first_match(cht_max98090_quirk_table);
	if (dmi_id)
		drv->quirks = (unsigned long)dmi_id->driver_data;

	drv->ts3a227e_present = acpi_dev_found("104C227E");
	if (!drv->ts3a227e_present) {
		/* no need probe TI jack detection chip */
		snd_soc_card_cht.aux_dev = NULL;
		snd_soc_card_cht.num_aux_devs = 0;

		ret_val = devm_acpi_dev_add_driver_gpios(dev->parent,
							 acpi_max98090_gpios);
		if (ret_val)
			dev_dbg(dev, "Unable to add GPIO mapping table\n");
	}

	/* override plaform name, if required */
	mach = (&pdev->dev)->platform_data;
	platform_name = mach->mach_params.platform;

	ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
							platform_name);
	if (ret_val)
		return ret_val;

	/* register the soc card */
	snd_soc_card_cht.dev = &pdev->dev;
	snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);

	if (drv->quirks & QUIRK_PMC_PLT_CLK_0)
		mclk_name = "pmc_plt_clk_0";
	else
		mclk_name = "pmc_plt_clk_3";

	drv->mclk = devm_clk_get(&pdev->dev, mclk_name);
	if (IS_ERR(drv->mclk)) {
		dev_err(&pdev->dev,
			"Failed to get MCLK from %s: %ld\n",
			mclk_name, PTR_ERR(drv->mclk));
		return PTR_ERR(drv->mclk);
	}

	/*
	 * Boards which have the MAX98090's clk connected to clk_0 do not seem
	 * to like it if we muck with the clock. If we disable the clock when
	 * it is unused we get "max98090 i2c-193C9890:00: PLL unlocked" errors
	 * and the PLL never seems to lock again.
	 * So for these boards we enable it here once and leave it at that.
	 */
	if (drv->quirks & QUIRK_PMC_PLT_CLK_0) {
		ret_val = clk_prepare_enable(drv->mclk);
		if (ret_val < 0) {
			dev_err(&pdev->dev, "MCLK enable error: %d\n", ret_val);
			return ret_val;
		}
	}

	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
	if (ret_val) {
		dev_err(&pdev->dev,
			"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, &snd_soc_card_cht);
	return ret_val;
}