From patchwork Wed May 11 21:47:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markuss Broks X-Patchwork-Id: 571866 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 3BCEAC433EF for ; Wed, 11 May 2022 21:48:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348363AbiEKVsH (ORCPT ); Wed, 11 May 2022 17:48:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54404 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348367AbiEKVsF (ORCPT ); Wed, 11 May 2022 17:48:05 -0400 Received: from mail-lf1-x12d.google.com (mail-lf1-x12d.google.com [IPv6:2a00:1450:4864:20::12d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 665563C70B; Wed, 11 May 2022 14:48:03 -0700 (PDT) Received: by mail-lf1-x12d.google.com with SMTP id bq30so5863672lfb.3; Wed, 11 May 2022 14:48:03 -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=1Ch9koX2JfsEbf0kLPJgbDufXDAbUbg6Kpk+d6uErWA=; b=fwQ06umLfUwIkrFAgaUfU/GVG6IVp4m6m5fjhJBxP/nKzvlgb8WnaHd/BwE0y1f20k 2qScdUbD3cVMKup1RI+1sl/DToj2l4SRO7EVCwGv1rjtr0BuoIfVlsLGt9AIfoyn1dCM paAayfdU+0v5CrB2d3AMZqBP6KV+Hp6+pw8Usds2rf604o9h8OzwB40T2PlhMgiZ4Tvn hb8MNxdmoQBZfUa83IYuJD+BZvNQWXNqD8VzRSu8IqNGxTHuS0dHpPbGX2vt3yAIqIe2 2Vgv9qE58979QkFvjkzsqrGmyorlSPLJG0SMk43L3i+nH01nqrItxjlojz4+4p5JsMlx mkMw== 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=1Ch9koX2JfsEbf0kLPJgbDufXDAbUbg6Kpk+d6uErWA=; b=A08N+3LT6gz91EUhFOF2tLSX+03sz3h3jCFZAyz1Q8QQSRl6tVtCC4Zwb67puWt6K8 KTyUVgi8zD4YUzHzWHY0o0okG6zm/SjTYl32orWsTgsdYGqTGJ34ViH4j6KT2ut9WWF6 UAsNbFt4/MitonrlNAniO3fCWM7s4cWsPDrl0mPoX7ULV//ODfuR3UNBBt4L6Eq2Imrb LpD3IlevVRaJCCkFC6XN93p81ZxBsY8cpVjkPIOX7OVH2TB0pI5AQVVIeUChgmf3imFd KqhYYQ14BAr3uxaSB/Jj7ooWwesQ/8vbBUVEUy+paOBmWV1/At7GZktAjOYgqpFfMPH/ hHOA== X-Gm-Message-State: AOAM532qXwdTp8Y/+7nnJlyJ2Qmz8oXvSS0UhsX90/Y5xtcps3CNaDsM 5Yp/lwh/wYLRB1xFW96+UPFe1uiH5vw28w== X-Google-Smtp-Source: ABdhPJz2b0cJ5q2w7qZIokN9SyTCOboNmFsOBoOJCId5h5/LZtXqKM5Ch7gJtMGk5IZquehFOu2IsQ== X-Received: by 2002:a05:6512:39c1:b0:472:556e:b297 with SMTP id k1-20020a05651239c100b00472556eb297mr21527917lfu.564.1652305682710; Wed, 11 May 2022 14:48:02 -0700 (PDT) Received: from nergzd-desktop.localdomain ([194.39.226.133]) by smtp.gmail.com with ESMTPSA id 7-20020ac25687000000b0047255d211afsm458891lfr.222.2022.05.11.14.48.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 May 2022 14:48:02 -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 v2 3/5] proximity: vl53l0x: Handle the VDD regulator Date: Thu, 12 May 2022 00:47:15 +0300 Message-Id: <20220511214718.50879-4-markuss.broks@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220511214718.50879-1-markuss.broks@gmail.com> References: <20220511214718.50879-1-markuss.broks@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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 ef2c063dfa1c..e65c4fcd32d6 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) @@ -191,10 +192,31 @@ 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) @@ -209,6 +231,21 @@ 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;