From patchwork Mon Jan 18 00:34:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Scally X-Patchwork-Id: 365738 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 376ADC433E0 for ; Mon, 18 Jan 2021 00:37:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0CD0822460 for ; Mon, 18 Jan 2021 00:37:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730744AbhARAha (ORCPT ); Sun, 17 Jan 2021 19:37:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730494AbhARAfX (ORCPT ); Sun, 17 Jan 2021 19:35:23 -0500 Received: from mail-wm1-x32f.google.com (mail-wm1-x32f.google.com [IPv6:2a00:1450:4864:20::32f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CA06C061574; Sun, 17 Jan 2021 16:34:43 -0800 (PST) Received: by mail-wm1-x32f.google.com with SMTP id i63so12122218wma.4; Sun, 17 Jan 2021 16:34:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=RJZvDTx1XXuRYdw+x5NTve2jp5kyClRdRV3Lu9KCjgs=; b=oQUa3mMcz+3upwqceaYIYRZIPID3stOz5WpURqI035bd8f2KVT+dpBhLzXD1SbKt6Q qyMdu2e/DQD1FdM3y7glCrF3aMJ+5NVw8j4UBjpp0L7MJZt1SWvkcyk/GFf1FUxWZqxO VYpidYR8r3YgjnBp338CY+TV5RHYukzEy0VQFgR/SZh4iBFT9060FePLHePwR34mmgjX lJc21ic5z5fIEv7Um5yk7hfcZPL4YajPxr+sz39Rc0D7cQVpGMZZo1HyJReL+n9LHUxW sd7M2hUxWmdKcM9tRFH2iZt5rcBWOVsoPqIegyi1lVAVLxSZsEni4xBQzFnWnCqwEIAb Id6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=RJZvDTx1XXuRYdw+x5NTve2jp5kyClRdRV3Lu9KCjgs=; b=e/E0e9dsplSJlTdc0o4jVTSVUOH+iliHFKkRENxOkBykIpepryGBbrFJgNfasWIuBF 6XntzpHB+8N0upaXJnsIvyp1ts+Z7gg2CXhglnVKs5sNa+87r45Bg4oelcYECloufM8y GB49nG12FCQq5Ezb6KAcz6Upmzj7/tDYuoNJHi0ECwXInX4y4VsGEZQsO77fkBJEzos6 5CxttUDA+VzC4r/0+1vnCec3Gnjm3RVWP3vr7k4qBbJ1SLKrtiuuwyMR3cV7JtP5pBtq K4j7ZQ+Dd9DcFoEHtDCfEeEB6LdItPc9itAcBYAjDrBrJ06LxgGDDMeL/dwgYKNt7Kna xlQA== X-Gm-Message-State: AOAM531w3H6uXEIZxJ3YIMO/623/T0hqpwZY/WwbIO/70EW9MlI07Lti L2HgJwlAHvEyxeDhv8rqegiHf326mo/mhw== X-Google-Smtp-Source: ABdhPJyrmuivtQjmF+XMSkLSEA6I51KLLylqniCHheFrZI1/FrzwXPkC+Th8A3ZsNVw8ZM7E+RbEXg== X-Received: by 2002:a7b:ca4d:: with SMTP id m13mr15551546wml.28.1610930081761; Sun, 17 Jan 2021 16:34:41 -0800 (PST) Received: from valhalla.home ([2.29.208.120]) by smtp.gmail.com with ESMTPSA id o124sm23642040wmb.5.2021.01.17.16.34.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Jan 2021 16:34:41 -0800 (PST) From: Daniel Scally To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, platform-driver-x86@vger.kernel.org, devel@acpica.org Cc: rjw@rjwysocki.net, lenb@kernel.org, andy@kernel.org, mika.westerberg@linux.intel.com, linus.walleij@linaro.org, bgolaszewski@baylibre.com, wsa@kernel.org, lee.jones@linaro.org, hdegoede@redhat.com, mgross@linux.intel.com, robert.moore@intel.com, erik.kaneda@intel.com, sakari.ailus@linux.intel.com, andriy.shevchenko@linux.intel.com, laurent.pinchart@ideasonboard.com, kieran.bingham@ideasonboard.com Subject: [PATCH v2 1/7] acpi: utils: move acpi_lpss_dep() to utils Date: Mon, 18 Jan 2021 00:34:22 +0000 Message-Id: <20210118003428.568892-2-djrscally@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210118003428.568892-1-djrscally@gmail.com> References: <20210118003428.568892-1-djrscally@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org I need to be able to identify devices which declare themselves to be dependent on other devices through _DEP; add this function to utils.c and export it to the rest of the ACPI layer. Suggested-by: Andy Shevchenko Signed-off-by: Daniel Scally Reviewed-by: Andy Shevchenko --- Changes in v2: - Introduced drivers/acpi/acpi_lpss.c | 24 ------------------------ drivers/acpi/internal.h | 1 + drivers/acpi/utils.c | 24 ++++++++++++++++++++++++ 3 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index be73974ce449..70c7d9a3f715 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -543,30 +543,6 @@ static struct device *acpi_lpss_find_device(const char *hid, const char *uid) return bus_find_device(&pci_bus_type, NULL, &data, match_hid_uid); } -static bool acpi_lpss_dep(struct acpi_device *adev, acpi_handle handle) -{ - struct acpi_handle_list dep_devices; - acpi_status status; - int i; - - if (!acpi_has_method(adev->handle, "_DEP")) - return false; - - status = acpi_evaluate_reference(adev->handle, "_DEP", NULL, - &dep_devices); - if (ACPI_FAILURE(status)) { - dev_dbg(&adev->dev, "Failed to evaluate _DEP.\n"); - return false; - } - - for (i = 0; i < dep_devices.count; i++) { - if (dep_devices.handles[i] == handle) - return true; - } - - return false; -} - static void acpi_lpss_link_consumer(struct device *dev1, const struct lpss_device_links *link) { diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index cb229e24c563..ee62c0973576 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -79,6 +79,7 @@ static inline void acpi_lpss_init(void) {} #endif void acpi_apd_init(void); +bool acpi_lpss_dep(struct acpi_device *adev, acpi_handle handle); acpi_status acpi_hotplug_schedule(struct acpi_device *adev, u32 src); bool acpi_queue_hotplug_work(struct work_struct *work); diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index ddca1550cce6..78b38775f18b 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -807,6 +807,30 @@ static int acpi_dev_match_cb(struct device *dev, const void *data) return hrv == match->hrv; } +bool acpi_lpss_dep(struct acpi_device *adev, acpi_handle handle) +{ + struct acpi_handle_list dep_devices; + acpi_status status; + int i; + + if (!acpi_has_method(adev->handle, "_DEP")) + return false; + + status = acpi_evaluate_reference(adev->handle, "_DEP", NULL, + &dep_devices); + if (ACPI_FAILURE(status)) { + dev_dbg(&adev->dev, "Failed to evaluate _DEP.\n"); + return false; + } + + for (i = 0; i < dep_devices.count; i++) { + if (dep_devices.handles[i] == handle) + return true; + } + + return false; +} + /** * acpi_dev_present - Detect that a given ACPI device is present * @hid: Hardware ID of the device.