From patchwork Tue May 10 20:42:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markuss Broks X-Patchwork-Id: 12845511 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 924D0C43219 for ; Tue, 10 May 2022 20:43:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233561AbiEJUns (ORCPT ); Tue, 10 May 2022 16:43:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50818 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234304AbiEJUnk (ORCPT ); Tue, 10 May 2022 16:43:40 -0400 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80D152A0A63; Tue, 10 May 2022 13:43:38 -0700 (PDT) Received: by mail-lf1-x12f.google.com with SMTP id i10so66143lfg.13; Tue, 10 May 2022 13:43:38 -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=vjdss2nDLwTNuuaVgZiKsX3zSboMMew4d/2NFU3vAvY=; b=dNSTjHEou78efjVQDZSF5xKhdufKPu0FPhaijaVB6PNcvXextvCJazQhEaa+Sr7dvK stcTpMC0bqq7DCIIMPQJR6LUZjI4f8FVT9fajtdbdtmFC8dyVCAhKl1DnDfhJoL+6vAP X8obXslZQTwoP4Fj+rKcHBa3AAMOoFL99htU7HD8cCO2/Ytx+CaZxGeBq2XH/++5jQPi u964htH01eIC8ayJE8r3Abr6KHZT8zr6tjaEcdZs07yragttLOswLRPBVZcrJXk7VwE1 1FvvhyXt+NbmPmc+XyRraSBZHrzKuH93ZnybcxUlq0bgDO0Fb/fdgVKkbVMgcTJXv/Bk AxYw== 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=vjdss2nDLwTNuuaVgZiKsX3zSboMMew4d/2NFU3vAvY=; b=AxjXXAhb2Bvb/QNWhRIVLmPsK80eaNs8g2pOCS7oB/Jyq2V/r9YW2KYB2FqobuK/HQ IdQV/J8FflywsB2vcr8bYXqVCMjG7cuSjk8X7Nupke5fz3+U5366MUyCsdCQ6vkhAZbB XV3SMNIdirrr7tNoXdE68gkzN6e3UANK+GxdUu2Uwl2+/PCQC339lIV62T9JKvNCso3m nt4P9xQKRbsV5KOq5anJdkVRc7j3IJSJk1tACtloB7eQS3GKrFuaey2dvhymO8QIcMD8 plgOS2GhhPEcWFkSsLAUnmNx6foniUAxShbmRXR3vZVxXvARkSS9r1qQ5OKgdlXliuUT u6mw== X-Gm-Message-State: AOAM53338BWP81anVu+qb0NCUGZRsT5LP07No81SSBBK6N8UMGJ5sMG8 BNbeQht8a8zqioWTxiI5VDM4Q1osdhY= X-Google-Smtp-Source: ABdhPJwLOJTxRIuT+ffLy8rAJ16AGYPcZ4VaS2+jMJIGEtDE+09rH7E3kdOnw1mneeYjtGnTGbjfXw== X-Received: by 2002:a05:6512:3390:b0:472:1a4d:ad14 with SMTP id h16-20020a056512339000b004721a4dad14mr17763054lfg.521.1652215416724; Tue, 10 May 2022 13:43:36 -0700 (PDT) Received: from nergzd-desktop.localdomain ([194.39.226.133]) by smtp.gmail.com with ESMTPSA id 10-20020ac25f4a000000b0047255d210f0sm12318lfz.31.2022.05.10.13.43.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 May 2022 13:43:36 -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 4/5] proximity: vl53l0x: Handle the reset GPIO Date: Tue, 10 May 2022 23:42:55 +0300 Message-Id: <20220510204256.8874-5-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 GPIO connected to the XSHUT/RST_N pin of VL53L0X. Signed-off-by: Markuss Broks --- drivers/iio/proximity/vl53l0x-i2c.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/iio/proximity/vl53l0x-i2c.c b/drivers/iio/proximity/vl53l0x-i2c.c index 74aeb2548ef6..47022bc1504e 100644 --- a/drivers/iio/proximity/vl53l0x-i2c.c +++ b/drivers/iio/proximity/vl53l0x-i2c.c @@ -15,6 +15,7 @@ */ #include +#include #include #include #include @@ -43,6 +44,7 @@ struct vl53l0x_data { struct i2c_client *client; struct completion completion; struct regulator *vdd_supply; + struct gpio_desc *reset_gpio; }; static irqreturn_t vl53l0x_handle_irq(int irq, void *priv) @@ -192,6 +194,8 @@ static void vl53l0x_power_off(void *_data) { struct vl53l0x_data *data = _data; + gpiod_set_value_cansleep(data->reset_gpio, 1); + regulator_disable(data->vdd_supply); } @@ -203,6 +207,8 @@ static int vl53l0x_power_on(struct vl53l0x_data *data) if (ret) return ret; + gpiod_set_value_cansleep(data->reset_gpio, 0); + usleep_range(3200, 5000); return 0; @@ -232,6 +238,11 @@ static int vl53l0x_probe(struct i2c_client *client) return dev_err_probe(&client->dev, PTR_ERR(data->vdd_supply), "Unable to get VDD regulator\n"); + data->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(data->reset_gpio)) + return dev_err_probe(&client->dev, PTR_ERR(data->reset_gpio), + "Cannot get reset GPIO\n"); + error = devm_add_action_or_reset(&client->dev, vl53l0x_power_off, data); if (error) return dev_err_probe(&client->dev, error,