From patchwork Fri Jul 28 01:42:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzung-Bi Shih X-Patchwork-Id: 707552 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 D1DB3C001DC for ; Fri, 28 Jul 2023 01:43:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232434AbjG1Bni (ORCPT ); Thu, 27 Jul 2023 21:43:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232405AbjG1Bnh (ORCPT ); Thu, 27 Jul 2023 21:43:37 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B502F2 for ; Thu, 27 Jul 2023 18:43:36 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 38D3361F9F for ; Fri, 28 Jul 2023 01:43:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD09BC433C7; Fri, 28 Jul 2023 01:43:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1690508615; bh=FklE3plM8rBaKf+LDdCA8oF+Xsd+t7GfiYvJ6WSKRcM=; h=From:To:Cc:Subject:Date:From; b=j5yfiEvQnp85lT/54zVRdSSa3yau2+0jvTcxt1oVYXqcnd47O/q2PyTYJed32i1Mc ZiIvbEAiY/pvBinZKEt9GIYAQHXBqViNU6Y/J1fyznKG0FScO8uqD8v88lKw+Uvx22 Vg3h9urguKI99jOzSGOWvoJLLLoN/j+p3gi/hWxW+e9yTg1EWofNCfMng+sx78+gph vtmYe43L5gy4stVjI4RQKLPebIzoLDBzCAMzJ+JDizI+eHCNBhoHgQqrqD9uGPNWRj JqGV1iYGLJlPKUr3niYy/CU1DPnRGb0Kz/MIDVR7KA2iWo9s2l+gfePHQLxVnktBj8 3SHOz1KF+ySZg== From: Tzung-Bi Shih To: bleung@chromium.org, groeck@chromium.org, rafael@kernel.org, lenb@kernel.org Cc: chrome-platform@lists.linux.dev, tzungbi@kernel.org, linux-acpi@vger.kernel.org, guillaume.tucker@collabora.com, denys.f@collabora.com, ricardo.canuelo@collabora.com, usama.anjum@collabora.com Subject: [PATCH] platform/chrome: chromeos_acpi: use official HID GOOG0016 Date: Fri, 28 Jul 2023 09:42:56 +0800 Message-ID: <20230728014256.3836298-1-tzungbi@kernel.org> X-Mailer: git-send-email 2.41.0.487.g6d72f3e995-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Use official HID GOOG0016 for ChromeOS ACPI (see [1]). [1]: https://crrev.com/c/2266713 Signed-off-by: Tzung-Bi Shih --- AFAIK, there has no ChromeOS devices using the driver yet. Instead, they still stick to some downstream implementation. IOW, I guess we are safe to just replace the PNP ID. .../ABI/testing/sysfs-driver-chromeos-acpi | 30 +++++++++---------- .../acpi/chromeos-acpi-device.rst | 5 ++-- drivers/platform/chrome/chromeos_acpi.c | 3 +- 3 files changed, 18 insertions(+), 20 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi index c308926e1568..8e8a5d6610b8 100644 --- a/Documentation/ABI/testing/sysfs-driver-chromeos-acpi +++ b/Documentation/ABI/testing/sysfs-driver-chromeos-acpi @@ -1,4 +1,4 @@ -What: /sys/bus/platform/devices/GGL0001:*/BINF.2 +What: /sys/bus/platform/devices/GOOG0016:*/BINF.2 Date: May 2022 KernelVersion: 5.19 Description: @@ -9,7 +9,7 @@ Description: 1 Rewritable firmware. == =============================== -What: /sys/bus/platform/devices/GGL0001:*/BINF.3 +What: /sys/bus/platform/devices/GOOG0016:*/BINF.3 Date: May 2022 KernelVersion: 5.19 Description: @@ -22,7 +22,7 @@ Description: 3 Netboot (factory installation only). == ===================================== -What: /sys/bus/platform/devices/GGL0001:*/CHSW +What: /sys/bus/platform/devices/GOOG0016:*/CHSW Date: May 2022 KernelVersion: 5.19 Description: @@ -37,28 +37,28 @@ Description: 512 Firmware write protection was disabled. ==== =========================================== -What: /sys/bus/platform/devices/GGL0001:*/FMAP +What: /sys/bus/platform/devices/GOOG0016:*/FMAP Date: May 2022 KernelVersion: 5.19 Description: Returns physical memory address of the start of the main processor firmware flashmap. -What: /sys/bus/platform/devices/GGL0001:*/FRID +What: /sys/bus/platform/devices/GOOG0016:*/FRID Date: May 2022 KernelVersion: 5.19 Description: Returns firmware version for the read-only portion of the main processor firmware. -What: /sys/bus/platform/devices/GGL0001:*/FWID +What: /sys/bus/platform/devices/GOOG0016:*/FWID Date: May 2022 KernelVersion: 5.19 Description: Returns firmware version for the rewritable portion of the main processor firmware. -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.0 +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.0 Date: May 2022 KernelVersion: 5.19 Description: @@ -72,7 +72,7 @@ Description: 256 to 511 Debug header GPIO 0 to GPIO 255. =========== ================================== -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.1 +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.1 Date: May 2022 KernelVersion: 5.19 Description: @@ -83,26 +83,26 @@ Description: 1 Signal is active high. == ======================= -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.2 +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.2 Date: May 2022 KernelVersion: 5.19 Description: Returns the GPIO number on the specified GPIO controller. -What: /sys/bus/platform/devices/GGL0001:*/GPIO.X/GPIO.3 +What: /sys/bus/platform/devices/GOOG0016:*/GPIO.X/GPIO.3 Date: May 2022 KernelVersion: 5.19 Description: Returns name of the GPIO controller. -What: /sys/bus/platform/devices/GGL0001:*/HWID +What: /sys/bus/platform/devices/GOOG0016:*/HWID Date: May 2022 KernelVersion: 5.19 Description: Returns hardware ID for the Chromebook. -What: /sys/bus/platform/devices/GGL0001:*/MECK +What: /sys/bus/platform/devices/GOOG0016:*/MECK Date: May 2022 KernelVersion: 5.19 Description: @@ -112,7 +112,7 @@ Description: Engine firmware has not changed. If Management Engine is not present, or if the firmware was unable to read the extended registers, this buffer size can be zero. -What: /sys/bus/platform/devices/GGL0001:*/VBNV.0 +What: /sys/bus/platform/devices/GOOG0016:*/VBNV.0 Date: May 2022 KernelVersion: 5.19 Description: @@ -121,14 +121,14 @@ Description: (that is, 'offset = 0' is the byte following the 14 bytes of clock data). -What: /sys/bus/platform/devices/GGL0001:*/VBNV.1 +What: /sys/bus/platform/devices/GOOG0016:*/VBNV.1 Date: May 2022 KernelVersion: 5.19 Description: Return the size in bytes of the verified boot non-volatile storage block. -What: /sys/bus/platform/devices/GGL0001:*/VDAT +What: /sys/bus/platform/devices/GOOG0016:*/VDAT Date: May 2022 KernelVersion: 5.19 Description: diff --git a/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst b/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst index f37fc90ce340..abb8641fd022 100644 --- a/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst +++ b/Documentation/firmware-guide/acpi/chromeos-acpi-device.rst @@ -5,9 +5,8 @@ Chrome OS ACPI Device ===================== Hardware functionality specific to Chrome OS is exposed through a Chrome OS ACPI device. -The plug and play ID of a Chrome OS ACPI device is GGL0001. GGL is a valid PNP ID of Google. -PNP ID can be used with the ACPI devices according to the guidelines. The following ACPI -objects are supported: +The hardware ID of a Chrome OS ACPI device is GOOG0016. The following ACPI objects are +supported: .. flat-table:: Supported ACPI Objects :widths: 1 2 diff --git a/drivers/platform/chrome/chromeos_acpi.c b/drivers/platform/chrome/chromeos_acpi.c index 50d8a4d4352d..4dcc22c34469 100644 --- a/drivers/platform/chrome/chromeos_acpi.c +++ b/drivers/platform/chrome/chromeos_acpi.c @@ -235,9 +235,8 @@ static int chromeos_acpi_device_probe(struct platform_device *pdev) return 0; } -/* GGL is valid PNP ID of Google. PNP ID can be used with the ACPI devices. */ static const struct acpi_device_id chromeos_device_ids[] = { - { "GGL0001", 0 }, + { "GOOG0016", 0 }, {} }; MODULE_DEVICE_TABLE(acpi, chromeos_device_ids);