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[83.25.185.84]) by smtp.gmail.com with ESMTPSA id l8-20020a170906078800b00a598d3ddf8dsm1104618ejc.28.2024.05.03.11.55.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 11:55:21 -0700 (PDT) From: Artur Weber Date: Fri, 03 May 2024 20:55:11 +0200 Subject: [PATCH 1/3] ASoC: dt-bindings: samsung,midas-audio: Add GPIO-based headset jack detection Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240503-midas-wm1811-gpio-jack-v1-1-e8cddbd67cbf@gmail.com> References: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> In-Reply-To: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> To: Sylwester Nawrocki , Krzysztof Kozlowski Cc: Liam Girdwood , Mark Brown , Rob Herring , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Alim Akhtar , alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Artur Weber X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1714762519; l=1850; i=aweber.kernel@gmail.com; s=20231030; h=from:subject:message-id; bh=iSL/9TbpKZMCrEtopfNilhigbnt3bHY73t6ih8p4REI=; b=84P+PrhoPK9SG9icveouBZi2fkf11bKuxyjdVfmtV3cwHD9/v77W7mjlchFTt/lJ9bwTEE9hQ DCYby6BSQPDBGUfIYW9w4C9YUh1EE+E6U+7VDmfaJ7n5Avw64nS7XHD X-Developer-Key: i=aweber.kernel@gmail.com; a=ed25519; pk=RhDBfWbJEHqDibXbhNEBAnc9FMkyznGxX/hwfhL8bv8= Some Samsung devices that share the midas-audio driver use a GPIO-based approach to headset jack detection, as opposed to using the built-in jack detection provided by the wm8994 driver. Add DT configuration values that allow for describing these setups. Signed-off-by: Artur Weber --- .../bindings/sound/samsung,midas-audio.yaml | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml index 6ec80f529d84..9f521131f2b3 100644 --- a/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml +++ b/Documentation/devicetree/bindings/sound/samsung,midas-audio.yaml @@ -61,6 +61,36 @@ properties: maxItems: 1 description: GPIO pin for line out selection + headset-detect-gpios: + maxItems: 1 + description: GPIO for detection of headset insertion + + headset-key-gpios: + maxItems: 1 + description: GPIO for detection of headset key press + + io-channels: + maxItems: 1 + description: IO channel to read micbias voltage for headset detection + + io-channel-names: + const: headset-detect + + headset-4pole-threshold-microvolt: + minItems: 2 + maxItems: 2 + description: | + Array containing minimum and maximum IO channel value for 4-pole + (with microphone/button) headsets. If the IO channel value is + outside of this range, a 3-pole headset is assumed. + + headset-button-threshold-microvolt: + minItems: 3 + maxItems: 3 + description: | + Array of minimum (inclusive) IO channel values for headset button + detection, in order: "Media", "Volume Up" and "Volume Down". + required: - compatible - cpu From patchwork Fri May 3 18:55:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Artur Weber X-Patchwork-Id: 13653327 Received: from mail-lf1-f43.google.com (mail-lf1-f43.google.com [209.85.167.43]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A0661586F5; Fri, 3 May 2024 18:55:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714762528; cv=none; b=E1x1EcNGlLB55fs9JyQdX5+iswlrgOgTevDDe/pKNu/AwiwOvrmx2K0+w5ceHwd89OIQq6ZLbjImh5BwaG9v/mLmAAc/aMtB1Z5CaFCXXDnXqPZysb2wnl56iC5+gbg1dwI2/PZ07LHJaOzSqWbAz/npPhXNCoYe6peKrXKIRJw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714762528; c=relaxed/simple; bh=/bENfoqr33Deh+36b873gv6Z24nDakoAKeNHo3TJKok=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Vah0pg/5zivJNvy5llUgikcVXVtBTH6PusncLjChThGNf2j0Rapm68esygQBteTMloyjmIpbQ4mw0yJJRy7wsOMK4M690StZXc9tDttiX3u6j+L0NICOCatE1ucN/7nRQyhYxt0/VoMNUXBXopOgm8ysweo0QCojV7uOFT3XOeM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=KD3GHqCP; arc=none smtp.client-ip=209.85.167.43 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KD3GHqCP" Received: by mail-lf1-f43.google.com with SMTP id 2adb3069b0e04-51f12ccff5eso3034299e87.1; Fri, 03 May 2024 11:55:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1714762524; x=1715367324; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=qaLJt3CrEL7LI/neNr6VMqZn//h/KqT1cG+3ONCcvbk=; b=KD3GHqCPkKKX7+PkmbStuuCNRxverP38omRIp3pI69750q2CIC33DyGYfkEWUTBsZf Wdl4HxMf9jy3kuH+h1gXV6i4g661ViIgrrLykKZTLsOVewRrT4MP2J5qCHL50HD0fIDr FNjlPAkAlih1if+dVHxmDORYxKAQo00JGz/AP0IQ+tqteVwXNJRm+vzrTOk3Uxk/KISM kc+9vNWKkiejdXsjPvO00o571//5EBjjLYe5pFxOrm6xgH8c86ircxkOw0KfchmkJAmn 8o0f+nSQByJzzphZ1LFBElAgK02POZsqBMcM4hVCsI0qXtY6oGgMqxl7zNAMOzO9Pklv zBng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714762524; x=1715367324; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qaLJt3CrEL7LI/neNr6VMqZn//h/KqT1cG+3ONCcvbk=; b=jSmhoP8OhJrHo6myxvlocQsXL+R59MMKMVGVW0FTaHe3P7UGOkwLVYQJZJ6r+OLjp+ vbUTfKDMm7Uq5Hme1uhSC8cznmvdzt9vF+Fa4aEHxmbGJgMz147LTK9Y1oN5ItrVmjRv l7394PeAfsLs6lBZsWByvL7SiAqhjoInebDlOLsQb8MkmthTalXlv4pEsy/DtFehWrqO LVmVa21x9NLvUTWsYGFtu8tJXsfCXY+pvMnOLekFYrEN2PxGGnmzTR4DM8XmNWrUI+Pq pI7unbkI/lMlktsfaeUE/cL9u3qIc/B3oL/FdLl7LoQp7kgUKH3Bk6wH9t8dWdmG4+RB M4eA== X-Forwarded-Encrypted: i=1; AJvYcCVr8zAQC0fN7t27L+LVy7Qf+u4K7feQdTiwH2YaB+yf/ptqSPT9RZLpTx8wmrCqby5UY4SN9cNT2QZXmTF7gQrJWJmvEB8YhYXHbqQed+iHi8DV4Tsyg+jZ3RZ05X0xeBdDzKzB/FQhyrEZSOhce/8rCsXEopUC8k2D5GqDNKzbtl9OGoV5r26+RLZeoZDyqM76R0ewMVfn0ZLspoQxCRUS6BRmH1YHZkg= X-Gm-Message-State: AOJu0YzMWVRdihKiGs7yaLDdJDMMN0fJigZLKcWgWUF4T5zuMUVMS0s8 bdjD52KUd80T7k2J1IM++kVf2o7EmCoW/sY4TEI6jp8oB58Yn8PQ X-Google-Smtp-Source: AGHT+IFiuOPhU9b+r8pW/xcxVPJuQACI/MSqzs6EaP7yMC8jhNXlFywNjSHA0WrTIrj2YXK11IW4Lg== X-Received: by 2002:ac2:4945:0:b0:51b:6ed6:af3f with SMTP id o5-20020ac24945000000b0051b6ed6af3fmr2238853lfi.16.1714762523689; Fri, 03 May 2024 11:55:23 -0700 (PDT) Received: from hex.my.domain (83.25.185.84.ipv4.supernova.orange.pl. [83.25.185.84]) by smtp.gmail.com with ESMTPSA id l8-20020a170906078800b00a598d3ddf8dsm1104618ejc.28.2024.05.03.11.55.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 11:55:23 -0700 (PDT) From: Artur Weber Date: Fri, 03 May 2024 20:55:12 +0200 Subject: [PATCH 2/3] ASoC: samsung: midas_wm1811: Add GPIO-based headset jack detection Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240503-midas-wm1811-gpio-jack-v1-2-e8cddbd67cbf@gmail.com> References: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> In-Reply-To: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> To: Sylwester Nawrocki , Krzysztof Kozlowski Cc: Liam Girdwood , Mark Brown , Rob Herring , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Alim Akhtar , alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Artur Weber X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1714762519; l=11162; i=aweber.kernel@gmail.com; s=20231030; h=from:subject:message-id; bh=/bENfoqr33Deh+36b873gv6Z24nDakoAKeNHo3TJKok=; b=USavtv/kIxxsiKYsTqgVjRjDeGfhckh1wgRCP0r2FNybgFhfNN8FGJuvou7Qm8ApR9HNuTTug uoSZsAhZnZzASvIYYa7VMrlpuH3OwOhNhXhGxmdCY4aSNryTU21Nejh X-Developer-Key: i=aweber.kernel@gmail.com; a=ed25519; pk=RhDBfWbJEHqDibXbhNEBAnc9FMkyznGxX/hwfhL8bv8= Some Samsung devices that use the midas_wm1811 driver use a GPIO-based method for detecting whether the headset jack is plugged in, as well as detecting which headset buttons are pressed. There are two GPIOs: a "headset detect" GPIO responsible for detecting jack insertion, and a "headset key" GPIO which triggers when a button on the headset is pressed. The plug type and the button pressed are determined based on information from an ADC channel. Add support for the GPIO-based headset jack detection mechanism, and make it configurable from the device tree. This implementation borrows somewhat from the aries_wm8994.c driver, though there are a few changes to make the code cleaner, and to add support for DT-based configuration. Notably, a dependency on IIO is introduced, to accommodate the ADC reading requirement. Signed-off-by: Artur Weber --- sound/soc/samsung/Kconfig | 2 +- sound/soc/samsung/midas_wm1811.c | 265 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 256 insertions(+), 11 deletions(-) diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig index 93c2b1b08d0a..4b1ea7b2c796 100644 --- a/sound/soc/samsung/Kconfig +++ b/sound/soc/samsung/Kconfig @@ -140,7 +140,7 @@ config SND_SOC_SAMSUNG_ARIES_WM8994 config SND_SOC_SAMSUNG_MIDAS_WM1811 tristate "SoC I2S Audio support for Midas boards" - depends on SND_SOC_SAMSUNG + depends on SND_SOC_SAMSUNG && IIO select SND_SAMSUNG_I2S select SND_SOC_WM8994 help diff --git a/sound/soc/samsung/midas_wm1811.c b/sound/soc/samsung/midas_wm1811.c index f31244156ff6..bbffb9301cbf 100644 --- a/sound/soc/samsung/midas_wm1811.c +++ b/sound/soc/samsung/midas_wm1811.c @@ -7,7 +7,9 @@ #include #include +#include #include +#include #include #include #include @@ -31,6 +33,9 @@ struct midas_priv { struct regulator *reg_submic_bias; struct gpio_desc *gpio_fm_sel; struct gpio_desc *gpio_lineout_sel; + struct gpio_desc *gpio_headset_detect; + struct gpio_desc *gpio_headset_key; + struct iio_channel *adc_headset_detect; unsigned int fll1_rate; struct snd_soc_jack headset_jack; @@ -47,6 +52,109 @@ static struct snd_soc_jack_pin headset_jack_pins[] = { }, }; +/* + * min_mv/max_mv values in this struct are set up based on DT values. + */ +static struct snd_soc_jack_zone headset_jack_zones[] = { + { .jack_type = SND_JACK_HEADPHONE, }, + { .jack_type = SND_JACK_HEADSET, }, + { .jack_type = SND_JACK_HEADPHONE, }, +}; + +/* + * This is used for manual detection in headset_key_check, we reuse the + * structure since it's convenient. + * + * min_mv/max_mv values in this struct are set up based on DT values. + */ +static struct snd_soc_jack_zone headset_key_zones[] = { + { .jack_type = SND_JACK_BTN_0, }, /* Media */ + { .jack_type = SND_JACK_BTN_1, }, /* Volume Up */ + { .jack_type = SND_JACK_BTN_2, }, /* Volume Down */ +}; + +static int headset_jack_check(void *data) +{ + struct midas_priv *priv = (struct midas_priv *) data; + int adc, jack_type, ret; + + if (!gpiod_get_value_cansleep(priv->gpio_headset_detect)) + return 0; + + /* Temporarily enable micbias for ADC measurement */ + ret = regulator_enable(priv->reg_mic_bias); + if (ret) + pr_err("%s: Failed to enable micbias: %d\n", __func__, ret); + + /* Sleep for a small amount of time to get the value to stabilize */ + msleep(20); + + ret = iio_read_channel_processed(priv->adc_headset_detect, &adc); + if (ret) { + pr_err("%s: Failed to read ADC (%d), assuming headphones\n", + __func__, ret); + return SND_JACK_HEADPHONE; + } + pr_debug("%s: ADC value is %d\n", __func__, adc); + + jack_type = snd_soc_jack_get_type(&priv->headset_jack, adc); + + /* Disable micbias if the jack is not a headset */ + if ((jack_type & SND_JACK_HEADSET) != SND_JACK_HEADSET) { + ret = regulator_disable(priv->reg_mic_bias); + if (ret) + pr_err("%s: Failed to disable micbias: %d\n", + __func__, ret); + } + + return jack_type; +} + +static int headset_key_check(void *data) +{ + struct midas_priv *priv = (struct midas_priv *) data; + int adc, i, ret; + + if (!gpiod_get_value_cansleep(priv->gpio_headset_key)) + return 0; + + /* Filter out keypresses when 4 pole jack not detected */ + if (!(priv->headset_jack.status & SND_JACK_MICROPHONE)) + return 0; + + ret = iio_read_channel_processed(priv->adc_headset_detect, &adc); + if (ret) { + pr_err("%s: Failed to read ADC (%d), can't detect key type\n", + __func__, ret); + return 0; + } + pr_debug("%s: ADC value is %d\n", __func__, adc); + + for (i = 0; i < ARRAY_SIZE(headset_key_zones); i++) { + if (adc >= headset_key_zones[i].min_mv && + adc <= headset_key_zones[i].max_mv) { + return headset_key_zones[i].jack_type; + } + } + + return 0; +} + +static struct snd_soc_jack_gpio headset_gpio[] = { + { + .name = "Headset Jack", + .report = SND_JACK_HEADSET, + .debounce_time = 150, + .jack_status_check = headset_jack_check, + }, + { + .name = "Headset Key", + .report = SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2, + .debounce_time = 30, + .jack_status_check = headset_key_check, + }, +}; + static int midas_start_fll1(struct snd_soc_pcm_runtime *rtd, unsigned int rate) { struct snd_soc_card *card = rtd->card; @@ -315,18 +423,67 @@ static int midas_late_probe(struct snd_soc_card *card) return ret; } - ret = snd_soc_card_jack_new_pins(card, "Headset", - SND_JACK_HEADSET | SND_JACK_MECHANICAL | - SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | - SND_JACK_BTN_3 | SND_JACK_BTN_4 | SND_JACK_BTN_5, - &priv->headset_jack, - headset_jack_pins, - ARRAY_SIZE(headset_jack_pins)); - if (ret) + if (!priv->gpio_headset_detect) { + ret = snd_soc_card_jack_new_pins(card, "Headset", + SND_JACK_HEADSET | SND_JACK_MECHANICAL | + SND_JACK_BTN_0 | SND_JACK_BTN_1 | + SND_JACK_BTN_2 | SND_JACK_BTN_3 | + SND_JACK_BTN_4 | SND_JACK_BTN_5, + &priv->headset_jack, + headset_jack_pins, + ARRAY_SIZE(headset_jack_pins)); + if (ret) + return ret; + + wm8958_mic_detect(aif1_dai->component, &priv->headset_jack, + NULL, NULL, NULL, NULL); + } else { + /* Some devices (n8000, t310) use a GPIO to detect the jack. */ + ret = snd_soc_card_jack_new_pins(card, "Headset", + SND_JACK_HEADSET | SND_JACK_BTN_0 | + SND_JACK_BTN_1 | SND_JACK_BTN_2, + &priv->headset_jack, + headset_jack_pins, + ARRAY_SIZE(headset_jack_pins)); + if (ret) { + dev_err(card->dev, + "Failed to set up headset pins: %d\n", ret); + return ret; + } + + ret = snd_soc_jack_add_zones(&priv->headset_jack, + ARRAY_SIZE(headset_jack_zones), + headset_jack_zones); + if (ret) { + dev_err(card->dev, + "Failed to set up headset zones: %d\n", ret); + return ret; + } + + headset_gpio[0].data = priv; + headset_gpio[0].desc = priv->gpio_headset_detect; + + headset_gpio[1].data = priv; + headset_gpio[1].desc = priv->gpio_headset_key; + + snd_jack_set_key(priv->headset_jack.jack, + SND_JACK_BTN_0, KEY_MEDIA); + snd_jack_set_key(priv->headset_jack.jack, + SND_JACK_BTN_1, KEY_VOLUMEUP); + snd_jack_set_key(priv->headset_jack.jack, + SND_JACK_BTN_2, KEY_VOLUMEDOWN); + + ret = snd_soc_jack_add_gpios(&priv->headset_jack, + ARRAY_SIZE(headset_gpio), + headset_gpio); + if (ret) + dev_err(card->dev, + "Failed to set up headset jack GPIOs: %d\n", + ret); + return ret; + } - wm8958_mic_detect(aif1_dai->component, &priv->headset_jack, - NULL, NULL, NULL, NULL); return 0; } @@ -433,6 +590,9 @@ static int midas_probe(struct platform_device *pdev) struct snd_soc_card *card = &midas_card; struct device *dev = &pdev->dev; static struct snd_soc_dai_link *dai_link; + enum iio_chan_type channel_type; + u32 fourpole_threshold[2]; + u32 button_threshold[3]; struct midas_priv *priv; int ret, i; @@ -468,6 +628,91 @@ static int midas_probe(struct platform_device *pdev) return PTR_ERR(priv->gpio_lineout_sel); } + priv->gpio_headset_detect = devm_gpiod_get_optional(dev, + "headset-detect", GPIOD_IN); + if (IS_ERR(priv->gpio_headset_detect)) { + dev_err(dev, "Failed to get headset jack detect GPIO\n"); + return PTR_ERR(priv->gpio_headset_detect); + } + + if (priv->gpio_headset_detect) { + priv->adc_headset_detect = devm_iio_channel_get(dev, + "headset-detect"); + if (IS_ERR(priv->adc_headset_detect)) { + dev_err(dev, "Failed to get ADC channel\n"); + return PTR_ERR(priv->adc_headset_detect); + } + + ret = iio_get_channel_type(priv->adc_headset_detect, + &channel_type); + if (ret) { + dev_err(dev, "Failed to get ADC channel type\n"); + return ret; + } + + if (channel_type != IIO_VOLTAGE) { + dev_err(dev, "ADC channel is not voltage\n"); + return ret; + } + + priv->gpio_headset_key = devm_gpiod_get(dev, "headset-key", + GPIOD_IN); + if (IS_ERR(priv->gpio_headset_key)) { + dev_err(dev, "Failed to get headset key gpio\n"); + return PTR_ERR(priv->gpio_headset_key); + } + + ret = of_property_read_u32_array(dev->of_node, + "headset-4pole-threshold-microvolt", + fourpole_threshold, + ARRAY_SIZE(fourpole_threshold)); + if (ret) { + dev_err(dev, "Failed to get 4-pole jack detection threshold\n"); + return ret; + } + + if (fourpole_threshold[0] > fourpole_threshold[1]) { + dev_err(dev, "Invalid 4-pole jack detection threshold value\n"); + return -EINVAL; + } + + headset_jack_zones[0].max_mv = (fourpole_threshold[0]); + headset_jack_zones[1].min_mv = (fourpole_threshold[0] + 1); + + headset_jack_zones[1].max_mv = (fourpole_threshold[1]); + headset_jack_zones[2].min_mv = (fourpole_threshold[1] + 1); + + ret = of_property_read_u32_array(dev->of_node, + "headset-button-threshold-microvolt", + button_threshold, + ARRAY_SIZE(button_threshold)); + if (ret) { + dev_err(dev, "Failed to get headset button detection threshold\n"); + return ret; + } + + if (button_threshold[0] > button_threshold[1] || + button_threshold[1] > button_threshold[2]) { + dev_err(dev, "Invalid headset button detection threshold value\n"); + return -EINVAL; + } + + for (i = 0; i < 3; i++) { + if (i != 0 && button_threshold[i] <= 0) { + dev_err(dev, "Invalid headset button detection threshold value\n"); + return -EINVAL; + } + + headset_key_zones[i].min_mv = button_threshold[i]; + + if (i == 2) + headset_key_zones[i].max_mv = UINT_MAX; + else + headset_key_zones[i].max_mv = \ + (button_threshold[i+1] - 1); + } + } + ret = snd_soc_of_parse_card_name(card, "model"); if (ret < 0) { dev_err(dev, "Card name is not specified\n"); From patchwork Fri May 3 18:55:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artur Weber X-Patchwork-Id: 13653326 Received: from mail-ej1-f47.google.com (mail-ej1-f47.google.com [209.85.218.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C5F80158866; 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[83.25.185.84]) by smtp.gmail.com with ESMTPSA id l8-20020a170906078800b00a598d3ddf8dsm1104618ejc.28.2024.05.03.11.55.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 May 2024 11:55:24 -0700 (PDT) From: Artur Weber Date: Fri, 03 May 2024 20:55:13 +0200 Subject: [PATCH 3/3] ARM: dts: samsung: exynos4212-tab3: Fix headset mic, add jack detection Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240503-midas-wm1811-gpio-jack-v1-3-e8cddbd67cbf@gmail.com> References: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> In-Reply-To: <20240503-midas-wm1811-gpio-jack-v1-0-e8cddbd67cbf@gmail.com> To: Sylwester Nawrocki , Krzysztof Kozlowski Cc: Liam Girdwood , Mark Brown , Rob Herring , Conor Dooley , Jaroslav Kysela , Takashi Iwai , Alim Akhtar , alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, ~postmarketos/upstreaming@lists.sr.ht, Artur Weber X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1714762519; l=2229; i=aweber.kernel@gmail.com; s=20231030; h=from:subject:message-id; bh=3kNvXvkN6naoI7GD4sRzPfHePGAYfimaGj1maVSZXX8=; b=agat+hgkRN9DNTowBNeEtXOd2WrfzFQ9JevjJtvYwfVfxYh/0eH8GkWG0msG//Zw21Hq4/csU Qr4xAZ+ecQdCWUpolpGSUoMlA8eRC4nR1P0KeIVHHJ6gqm3OzlAOxIG X-Developer-Key: i=aweber.kernel@gmail.com; a=ed25519; pk=RhDBfWbJEHqDibXbhNEBAnc9FMkyznGxX/hwfhL8bv8= Add the necessary properties to the samsung,midas-audio node to allow for headset jack detection, set up the mic bias regulator GPIO and fix some other small issues with the sound setup. Signed-off-by: Artur Weber --- arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi index e5254e32aa8f..a059857e3054 100644 --- a/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi +++ b/arch/arm/boot/dts/samsung/exynos4212-tab3.dtsi @@ -285,6 +285,8 @@ mic_bias_reg: voltage-regulator-4 { regulator-name = "MICBIAS_LDO_2.8V"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; + gpio = <&gpm0 0 GPIO_ACTIVE_HIGH>; + enable-active-high; }; submic_bias_reg: voltage-regulator-5 { @@ -297,8 +299,17 @@ submic_bias_reg: voltage-regulator-5 { sound: sound { compatible = "samsung,midas-audio"; model = "TAB3"; + mic-bias-supply = <&mic_bias_reg>; submic-bias-supply = <&submic_bias_reg>; + lineout-sel-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>; + + headset-detect-gpios = <&gpx0 4 GPIO_ACTIVE_LOW>; + headset-key-gpios = <&gpx3 6 GPIO_ACTIVE_LOW>; + headset-4pole-threshold-microvolt = <710 2000>; + headset-button-threshold-microvolt = <0 130 260>; + io-channel-names = "headset-detect"; + io-channels = <&adc 0>; audio-routing = "HP", "HPOUT1L", "HP", "HPOUT1R", @@ -345,6 +356,11 @@ wlan_pwrseq: sdhci3-pwrseq { }; }; +&adc { + vdd-supply = <&ldo3_reg>; + status = "okay"; +}; + &bus_acp { devfreq = <&bus_dmc>; status = "okay"; @@ -505,12 +521,11 @@ &i2c_4 { wm1811: audio-codec@1a { compatible = "wlf,wm1811"; reg = <0x1a>; - clocks = <&pmu_system_controller 0>; - clock-names = "MCLK1"; + clocks = <&pmu_system_controller 0>, + <&s5m8767_osc S2MPS11_CLK_BT>; + clock-names = "MCLK1", "MCLK2"; interrupt-controller; #interrupt-cells = <2>; - interrupt-parent = <&gpx3>; - interrupts = <6 IRQ_TYPE_LEVEL_HIGH>; gpio-controller; #gpio-cells = <2>;