From patchwork Sat Apr 1 14:59:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 13197022 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 48CA9C76196 for ; Sat, 1 Apr 2023 15:00:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229792AbjDAPAk (ORCPT ); Sat, 1 Apr 2023 11:00:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229667AbjDAPAj (ORCPT ); Sat, 1 Apr 2023 11:00:39 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE4921D2DC for ; Sat, 1 Apr 2023 07:59:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1680361184; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PCnCunX8zPLtEMo/fn00t95JhskXvfVoqtR5aYXZvnU=; b=Y+hBUWC5tuKm6bf1x3TrEQlS9rzp91g0hGT8US3dAyKI0Rs8Sg6Y5+lvJCHyiTLTZ+r/M4 o+Jf6ewGuWAHkAGY1qQZA14/TnywJUp9jLVMPOrNYB1uLHjxH2Bx6208mgTq8WLC+cmGGH Rk05Mp/ZRZqaPlGE1GH2uVxg14u+adE= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-225-I2IOVZdDN1mR37GiUn2E5w-1; Sat, 01 Apr 2023 10:59:40 -0400 X-MC-Unique: I2IOVZdDN1mR37GiUn2E5w-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 121ED1C04181; Sat, 1 Apr 2023 14:59:40 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8581C400F59; Sat, 1 Apr 2023 14:59:38 +0000 (UTC) From: Hans de Goede To: Mauro Carvalho Chehab , Sakari Ailus Cc: Hans de Goede , Kate Hsuan , Tsuchiya Yuto , Andy Shevchenko , Yury Luneff , Nable , andrey.i.trufanov@gmail.com, Fabio Aiuto , linux-media@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH 02/28] media: atomisp: ov2680: Use v4l2_get_acpi_sensor_info() for the GPIO lookups Date: Sat, 1 Apr 2023 16:59:00 +0200 Message-Id: <20230401145926.596216-3-hdegoede@redhat.com> In-Reply-To: <20230401145926.596216-1-hdegoede@redhat.com> References: <20230401145926.596216-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Use the new v4l2_get_acpi_sensor_info() for the GPIO lookups, this uses the special Intel _DSM method to get more info about the GPIOs like their function and their polarity. Signed-off-by: Hans de Goede --- .../media/atomisp/i2c/atomisp-ov2680.c | 26 +++---------------- drivers/staging/media/atomisp/i2c/ov2680.h | 1 - 2 files changed, 3 insertions(+), 24 deletions(-) diff --git a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c index aeb38599fe13..3181276ed027 100644 --- a/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c +++ b/drivers/staging/media/atomisp/i2c/atomisp-ov2680.c @@ -3,6 +3,7 @@ * Support for OmniVision OV2680 1080p HD camera sensor. * * Copyright (c) 2013 Intel Corporation. All Rights Reserved. + * Copyright (c) 2023 Hans de Goede * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version @@ -614,21 +615,6 @@ static void ov2680_remove(struct i2c_client *client) pm_runtime_disable(&client->dev); } -/* - * Unlike other sensors which have both a rest and powerdown input pins, - * the OV2680 only has a powerdown input. But some ACPI tables still list - * 2 GPIOs for the OV2680 and it is unclear which to use. So try to get - * up to 2 GPIOs (1 mandatory, 1 optional) and control them in sync. - */ -static const struct acpi_gpio_params ov2680_first_gpio = { 0, 0, true }; -static const struct acpi_gpio_params ov2680_second_gpio = { 1, 0, true }; - -static const struct acpi_gpio_mapping ov2680_gpio_mapping[] = { - { "powerdown-gpios", &ov2680_first_gpio, 1 }, - { "powerdown-alt-gpios", &ov2680_second_gpio, 1 }, - { }, -}; - static int ov2680_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -644,18 +630,14 @@ static int ov2680_probe(struct i2c_client *client) sensor->client = client; v4l2_i2c_subdev_init(&sensor->sd, client, &ov2680_ops); - ret = devm_acpi_dev_add_driver_gpios(&client->dev, ov2680_gpio_mapping); + ret = v4l2_get_acpi_sensor_info(dev, NULL); if (ret) return ret; - sensor->powerdown = devm_gpiod_get(dev, "powerdown", GPIOD_OUT_HIGH); + sensor->powerdown = devm_gpiod_get_optional(dev, "powerdown", GPIOD_OUT_HIGH); if (IS_ERR(sensor->powerdown)) return dev_err_probe(dev, PTR_ERR(sensor->powerdown), "getting powerdown GPIO\n"); - sensor->powerdown_alt = devm_gpiod_get_optional(dev, "powerdown-alt", GPIOD_OUT_HIGH); - if (IS_ERR(sensor->powerdown_alt)) - return dev_err_probe(dev, PTR_ERR(sensor->powerdown_alt), "getting powerdown-alt GPIO\n"); - pm_runtime_set_suspended(dev); pm_runtime_enable(dev); pm_runtime_set_autosuspend_delay(dev, 1000); @@ -699,7 +681,6 @@ static int ov2680_suspend(struct device *dev) struct ov2680_device *sensor = to_ov2680_sensor(sd); gpiod_set_value_cansleep(sensor->powerdown, 1); - gpiod_set_value_cansleep(sensor->powerdown_alt, 1); return 0; } @@ -712,7 +693,6 @@ static int ov2680_resume(struct device *dev) usleep_range(5000, 6000); gpiod_set_value_cansleep(sensor->powerdown, 0); - gpiod_set_value_cansleep(sensor->powerdown_alt, 0); /* according to DS, 20ms is needed between PWDN and i2c access */ msleep(20); diff --git a/drivers/staging/media/atomisp/i2c/ov2680.h b/drivers/staging/media/atomisp/i2c/ov2680.h index a37af0a74a53..baf49eb0659e 100644 --- a/drivers/staging/media/atomisp/i2c/ov2680.h +++ b/drivers/staging/media/atomisp/i2c/ov2680.h @@ -114,7 +114,6 @@ struct ov2680_device { struct mutex input_lock; struct i2c_client *client; struct gpio_desc *powerdown; - struct gpio_desc *powerdown_alt; bool is_streaming; struct ov2680_mode {