From patchwork Thu May 12 19:13:31 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markuss Broks X-Patchwork-Id: 12848048 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 85577C433F5 for ; Thu, 12 May 2022 19:14:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357985AbiELTOS (ORCPT ); Thu, 12 May 2022 15:14:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54748 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1357961AbiELTNy (ORCPT ); Thu, 12 May 2022 15:13:54 -0400 Received: from mail-lf1-x131.google.com (mail-lf1-x131.google.com [IPv6:2a00:1450:4864:20::131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 784E02764DC; Thu, 12 May 2022 12:13:52 -0700 (PDT) Received: by mail-lf1-x131.google.com with SMTP id u23so10797237lfc.1; Thu, 12 May 2022 12:13:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Y6hTyWxvALgSndQqmiLi+9G4p6MJh+4j+g2xm+AL/rQ=; b=PysoZzwNMfsEcuiter0OSCiPRt4Ho8EYePnl4pJqPmAonr4+tAlQcrGFBSFe7IeX4g aRFxmEnXrpO4NhWPqDWoZAvc4Xjkw6XlOpDuSZDQsJDZRF93R5tP6dFXsMtRc7GpNYlu l2fGDHCj/CgiiYE7Auez0HBUwzw3RHSCUafL0EJlhLcB8gYa6Z2I/S7jsRuAKWlQ8Afr ++1R8C7P99xDg1XA3uzKJwb7yt5YAChecZVuV1sRftSsKZp7nFfv4zY6y8DnRXWj7vLK lGPbktAjFQWSQPe0qSn6amEAhMhy43NGsTQ8ZAQdzACHgTUPrmxE2zDjdJeu/Neq/8uI +hFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Y6hTyWxvALgSndQqmiLi+9G4p6MJh+4j+g2xm+AL/rQ=; b=IxgFnfK2n+QCKSPHQj4tZsXn1GKzCMkU81JPUSrFDCy8/Uo0lK8RxvMNJQvvvOuv/9 va3FXJErRVDk+A2AcMCNb9TJu+jSB3O/NqrR3IGWyIhg6w1SPCeFOftmRZ53gASqGnmT nE4Xw8KKa6xZuBFKgbbv643/2Kjk96uIRE/fvPpTijKf8yT4nX/ePaEVMxH777u9OZA4 NabHB6RU/pkFl71QvFGy/y2aBffD0NCRN0+rA0xCP5tKDMO4k5lnM4SFeytPHtWvlZNY fbWjzTNrE7bVtHQ6yqKEd5KfVbn+ModstSD3CoqlIGgagoZLYg/vjAmIuxr8F+6Jm4OK yZZg== X-Gm-Message-State: AOAM531xIG2hffFUapAQmmnlS0vPelh0CztGJKEarrRQirJaRjoIKP6n 8rSJ/JEzeEH9J1iKYy3gDaZSPqPWquEH7w== X-Google-Smtp-Source: ABdhPJxezMskd742DMYln9aEmh78sXgfMEsMgpKa1dItrQ1qSxFU8SVH5RR7d57wBs+UShJjU8+DYQ== X-Received: by 2002:a05:6512:332d:b0:472:9a2:6e27 with SMTP id l13-20020a056512332d00b0047209a26e27mr847024lfe.611.1652382831889; Thu, 12 May 2022 12:13:51 -0700 (PDT) Received: from nergzd-desktop.localdomain ([194.39.226.133]) by smtp.gmail.com with ESMTPSA id y26-20020ac255ba000000b0047255d210f4sm62146lfg.35.2022.05.12.12.13.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 May 2022 12:13:51 -0700 (PDT) From: Markuss Broks To: linux-kernel@vger.kernel.org Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Markuss Broks , Konrad Dybcio , Marijn Suijten , AngeloGioacchino Del Regno , Song Qiang , Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Andy Gross , Bjorn Andersson , Liam Girdwood , Mark Brown , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v4 3/5] proximity: vl53l0x: Handle the VDD regulator Date: Thu, 12 May 2022 22:13:31 +0300 Message-Id: <20220512191334.61804-4-markuss.broks@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220512191334.61804-1-markuss.broks@gmail.com> References: <20220512191334.61804-1-markuss.broks@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Handle the regulator supplying the VDD pin of VL53L0X. Signed-off-by: Markuss Broks --- drivers/iio/proximity/vl53l0x-i2c.c | 37 +++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/iio/proximity/vl53l0x-i2c.c b/drivers/iio/proximity/vl53l0x-i2c.c index 12a3e2eff464..8581a873919f 100644 --- a/drivers/iio/proximity/vl53l0x-i2c.c +++ b/drivers/iio/proximity/vl53l0x-i2c.c @@ -43,6 +43,7 @@ struct vl53l0x_data { struct i2c_client *client; struct completion completion; + struct regulator *vdd_supply; }; static irqreturn_t vl53l0x_handle_irq(int irq, void *priv) @@ -192,10 +193,31 @@ static const struct iio_info vl53l0x_info = { .read_raw = vl53l0x_read_raw, }; +static void vl53l0x_power_off(void *_data) +{ + struct vl53l0x_data *data = _data; + + regulator_disable(data->vdd_supply); +} + +static int vl53l0x_power_on(struct vl53l0x_data *data) +{ + int ret; + + ret = regulator_enable(data->vdd_supply); + if (ret) + return ret; + + usleep_range(3200, 5000); + + return 0; +} + static int vl53l0x_probe(struct i2c_client *client) { struct vl53l0x_data *data; struct iio_dev *indio_dev; + int error; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!indio_dev) @@ -210,6 +232,21 @@ static int vl53l0x_probe(struct i2c_client *client) I2C_FUNC_SMBUS_BYTE_DATA)) return -EOPNOTSUPP; + data->vdd_supply = devm_regulator_get_optional(&client->dev, "vdd"); + if (IS_ERR(data->vdd_supply)) + return dev_err_probe(&client->dev, PTR_ERR(data->vdd_supply), + "Unable to get VDD regulator\n"); + + error = vl53l0x_power_on(data); + if (error) + return dev_err_probe(&client->dev, error, + "Failed to power on the chip\n"); + + error = devm_add_action_or_reset(&client->dev, vl53l0x_power_off, data); + if (error) + return dev_err_probe(&client->dev, error, + "Failed to install poweroff action\n"); + indio_dev->name = "vl53l0x"; indio_dev->info = &vl53l0x_info; indio_dev->channels = vl53l0x_channels;