From patchwork Thu May 12 11:07:55 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markuss Broks X-Patchwork-Id: 572195 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 31809C433F5 for ; Thu, 12 May 2022 11:08:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353002AbiELLIb (ORCPT ); Thu, 12 May 2022 07:08:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60002 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352975AbiELLIa (ORCPT ); Thu, 12 May 2022 07:08:30 -0400 Received: from mail-lf1-x12e.google.com (mail-lf1-x12e.google.com [IPv6:2a00:1450:4864:20::12e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23F795AA66; Thu, 12 May 2022 04:08:16 -0700 (PDT) Received: by mail-lf1-x12e.google.com with SMTP id d15so8413239lfk.5; Thu, 12 May 2022 04:08:16 -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=Rn+hZ1SORWL9uzL+yqm22z/NAwpZAv/juhns1YUGhh8=; b=ajU/1KslDh5E/JvduAifp/STGz5uzWKx00qJ8v53ttzKhbo9OG3iAW8XCQ+nAxTqzd ObDea9lIRsmxwKOXsIMP66Yn6U+ir+TM4Sw9TWaHTHVkfxN4BC5L0PI6JPVUKV1Z6oKf a/fIv2yTNeSqMgk8CNEBbkqEag6f2sa4BV5zj5LT9gQ+mzqJcz1p597Op10gRczAymH6 7bA3+DYGB8baVyqOGzlnSTNSmmHa9aex1za0ujck3B1c5QkN5C3c8K7kJKwEbOta4KAt Abxlk3XfUP5hAusIpx3qweO7sZcvk8jQI/6RscwjcXixXBqEMX1YQ1BiARkaC51R9IcK lZhA== 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=Rn+hZ1SORWL9uzL+yqm22z/NAwpZAv/juhns1YUGhh8=; b=pxVqao5/5kNTe2oa7d2Z/2lQMytftfMZ2ZNM8x48Lep40OwkrSOlKRqNZ2jVFKpUrr YqoMHPwYjHQduGoJFvpRRsr8mb9FcUSyQveM+g0AOiBFOXmOWtkZA4ZvWcqdKK+L+cMH oolwuKAgrL+SxCkW+OAmY9QrOrkPO52DiE0vtmXCiBSUreQ496XBMnXaFLAKem6MwN1I 9bAbkt6NxUam0Po2Ut78j93D3C0zeKseu4PQcFcFDU46+Fhm/A3n7W+JnPPIB+l8A4u3 2xU+/RgQEMAJUUWxU9r3Kbyaqz7qd+YcD06jfovJRoKAiHrZAkMqTCybYehqgq+C89Iu mkuQ== X-Gm-Message-State: AOAM532nEYgIZqF9LuM6KyMOJj9ZdzFpsY8EYo0AAFkxyKvawI8pBlv9 oi7Hzfei9UPq3cBrGH1gHn05j/MKBiexqA== X-Google-Smtp-Source: ABdhPJzenfz08JbIBgzG3TB5G7pZLDp9lLFOqPJZCCjMTNdZga3+bPCbT4u8p3xtmKlv/5XCyKf+/Q== X-Received: by 2002:a05:6512:3d1d:b0:472:625d:b21e with SMTP id d29-20020a0565123d1d00b00472625db21emr23991992lfv.366.1652353695101; Thu, 12 May 2022 04:08:15 -0700 (PDT) Received: from nergzd-desktop.localdomain ([194.39.226.133]) by smtp.gmail.com with ESMTPSA id i25-20020a056512007900b004725b99d2fdsm734883lfo.164.2022.05.12.04.08.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 May 2022 04:08:14 -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 v3 3/5] proximity: vl53l0x: Handle the VDD regulator Date: Thu, 12 May 2022 14:07:55 +0300 Message-Id: <20220512110757.5297-4-markuss.broks@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220512110757.5297-1-markuss.broks@gmail.com> References: <20220512110757.5297-1-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 12a3e2eff464..d8523e3981e8 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 = 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;