From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4F8B13BB2C for ; Wed, 15 Nov 2023 19:53:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="eEh2aufV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0072AC433C8; Wed, 15 Nov 2023 19:53:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700078007; bh=wB0IdGWF3ct1xrYs6fsjNUBzbWV3lmusDMtnrV7dNGI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eEh2aufVwd0RGvcJdIuKFapmSq6HqS765bFwUHArTQPWaNbC4rerni1a2MC1QUbdn hLQmgVEAUa32HZLKySa2IsCir1D2oaoqfvSfeWnVQnnJodc1EGxCEfE0fa+XnrahV/ Pvldt45v1l+M2jFfQTn/+br+1F/huy5TwR0lIqGc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ondrej Zary , "Rafael J. Wysocki" , Sasha Levin Subject: =?UTF-8?q?=5BPATCH=206=2E1=20052/379=5D=20=3D=3FUTF-8=3Fq=3FACPI=3A=3D20video=3A=3D20Add=3D20acpi=3D5Fbacklight=3D3Dvendor=3D20quir=3F=3D=20=3D=3FUTF-8=3Fq=3Fk=3D20for=3D20Toshiba=3D20Port=3DC3=3DA9g=3DC3=3DA9=3D20R100=3F=3D?= Date: Wed, 15 Nov 2023 14:22:07 -0500 Message-ID: <20231115192648.239544306@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115192645.143643130@linuxfoundation.org> References: <20231115192645.143643130@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Ondrej Zary [ Upstream commit 35a341c9b25da6a479bd8013bcb11a680a7233e3 ] Toshiba Portégé R100 has both acpi_video and toshiba_acpi vendor backlight driver working. But none of them gets activated as it has a VGA with no kernel driver (Trident CyberBlade XP4m32). The DMI strings are very generic ("Portable PC") so add a custom callback function to check for Trident CyberBlade XP4m32 PCI device before enabling the vendor backlight driver (better than acpi_video as it has more brightness steps). Fixes: 5aa9d943e9b6 ("ACPI: video: Don't enable fallback path for creating ACPI backlight by default") Signed-off-by: Ondrej Zary Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/video_detect.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 073d26ddb6c21..60b0128a10e86 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -130,6 +130,16 @@ static int video_detect_force_native(const struct dmi_system_id *d) return 0; } +static int video_detect_portege_r100(const struct dmi_system_id *d) +{ + struct pci_dev *dev; + /* Search for Trident CyberBlade XP4m32 to confirm Portégé R100 */ + dev = pci_get_device(PCI_VENDOR_ID_TRIDENT, 0x2100, NULL); + if (dev) + acpi_backlight_dmi = acpi_backlight_vendor; + return 0; +} + static const struct dmi_system_id video_detect_dmi_table[] = { /* * Models which should use the vendor backlight interface, @@ -268,6 +278,22 @@ static const struct dmi_system_id video_detect_dmi_table[] = { }, }, + /* + * Toshiba Portégé R100 has working both acpi_video and toshiba_acpi + * vendor driver. But none of them gets activated as it has a VGA with + * no kernel driver (Trident CyberBlade XP4m32). + * The DMI strings are generic so check for the VGA chip in callback. + */ + { + .callback = video_detect_portege_r100, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), + DMI_MATCH(DMI_BOARD_NAME, "Portable PC") + }, + }, + /* * Models which need acpi_video backlight control where the GPU drivers * do not call acpi_video_register_backlight() because no internal panel -- 2.42.0