From patchwork Tue May 10 20:42:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markuss Broks X-Patchwork-Id: 12845509 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 CFED7C4332F for ; Tue, 10 May 2022 20:43:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234017AbiEJUnj (ORCPT ); Tue, 10 May 2022 16:43:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50592 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233561AbiEJUni (ORCPT ); Tue, 10 May 2022 16:43:38 -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 3158829ED0B; Tue, 10 May 2022 13:43:35 -0700 (PDT) Received: by mail-lf1-x131.google.com with SMTP id t25so112737lfg.7; Tue, 10 May 2022 13:43:35 -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=YT/2zj6suok1QDPY2bNDHH8fszKu/6jV8dkbTQl6UTo=; b=qLjQHVz7SB6ayG/YauYW+iRkvnUbR1G3ZSxQTY3sDPoHZXzrYzRghU0Vbpq4+rTKMa /dKKmGAvCtf6JnOomM5ZxTVgOSdRk5nE7Aurh70Xeqdr1jt+0qvQwOGJxODrd1/9zICl 2RugQBpjY2JN8DKkIVtIPOsoOsFpQhwyI64thQW8OIX9s35UcxZOQVz7O2Inqw35bNXL GKzMFcN+R5wjwl9JFIWcyWJ5t9MAoB8Dwrh0C0T3z0+Ea6UE8oTK/AyIUFu6Ol+qV5aA AfQ4lO0MaB/C5BZxnJai8lLEnhGTorzpk2zM9f8GNIzQSGL6tz2cyNrUEyd+hTVSTu7i 3eUA== 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=YT/2zj6suok1QDPY2bNDHH8fszKu/6jV8dkbTQl6UTo=; b=xp8RlcDl0ArEfovlC/Kwq9rcK0IIJYl87Hrr6DvzhrVUJi1Ziu5bdRtWjKu3EaeGSQ R8E/T4/NiCugBELgKDss4DCWkAna+dmyV32In+jikx0zBcVshjogFpd6RQn9o7Xn49eV XiKOgdECxYCdgE/JWLeUaWl+lmpfSzkPbkezfu3WIC/z31bNl1Zu1PpIGcyfnqPAgckP xvrEh1gYE09TrII5E4rLM6+HQsTQZB+L69GnZiUNiH7K1hCoRvFVKJJgGCv5tBpH7FIP AgS6Lpn2Qrkbc797MjTFQ6JltugGVRhWJA5/xZ3t/q5IZGv7OHworPWfiwafVef+i+Io huNQ== X-Gm-Message-State: AOAM533GOLY+tNWLfRXVp6nHX7qmNgdBEx8yrdLtQq6mc0zCsjEtzgtv gKzt6AgyMwe5bwWD1jyP21K4r/P0wtc= X-Google-Smtp-Source: ABdhPJyk4e6hgqMSDo7OtbvC1MxjCu5xhbhE59OA6EsLjixjjRU3Y9S90Cg1BgaOto5W62qaKYru6A== X-Received: by 2002:ac2:5f84:0:b0:471:fd0f:a6e7 with SMTP id r4-20020ac25f84000000b00471fd0fa6e7mr17285738lfe.41.1652215414042; Tue, 10 May 2022 13:43:34 -0700 (PDT) Received: from nergzd-desktop.localdomain ([194.39.226.133]) by smtp.gmail.com with ESMTPSA id 10-20020ac25f4a000000b0047255d210f0sm12318lfz.31.2022.05.10.13.43.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 May 2022 13:43:33 -0700 (PDT) From: Markuss Broks To: linux-kernel@vger.kernel.org Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, Markuss Broks , 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 3/5] proximity: vl53l0x: Handle the VDD regulator Date: Tue, 10 May 2022 23:42:54 +0300 Message-Id: <20220510204256.8874-4-markuss.broks@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220510204256.8874-1-markuss.broks@gmail.com> References: <20220510204256.8874-1-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 16f809c479cb..74aeb2548ef6 100644 --- a/drivers/iio/proximity/vl53l0x-i2c.c +++ b/drivers/iio/proximity/vl53l0x-i2c.c @@ -42,6 +42,7 @@ struct vl53l0x_data { struct i2c_client *client; struct completion completion; + struct regulator *vdd_supply; }; static irqreturn_t vl53l0x_handle_irq(int irq, void *priv) @@ -187,10 +188,31 @@ 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) @@ -205,6 +227,21 @@ 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 = 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"); + + error = vl53l0x_power_on(data); + if (error) + return dev_err_probe(&client->dev, error, + "Failed to power on the chip\n"); + indio_dev->name = "vl53l0x"; indio_dev->info = &vl53l0x_info; indio_dev->channels = vl53l0x_channels;