From mboxrd@z Thu Jan 1 00:00:00 1970 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 984CCC433F5 for ; Tue, 17 May 2022 15:24:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4AA05112C05; Tue, 17 May 2022 15:24:02 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id CB7491126CA for ; Tue, 17 May 2022 15:24:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1652801039; 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=nrgaigmhtT/c3yNhuGBcztXKchf7HdgOC/zOZ1F01Vw=; b=V/Qw942gN83K/UPyMT5gfK4of5hWVvnj4wMetKmhjEF5crMYIe2cTTzjz29VRB531afIpQ 09tYPLN1KEm97e8qJjsXVWzaLH1G2YPsUFUhwcuJ/MKOK3NljEJ9euq0uxDid1zO58R514 EGO46+0mr9CeRjgDAaeOp3QQ+qmJOGs= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-596-m8jAcUa4PfG3b5nOVxKb1g-1; Tue, 17 May 2022 11:23:52 -0400 X-MC-Unique: m8jAcUa4PfG3b5nOVxKb1g-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 7B0AD10665A4; Tue, 17 May 2022 15:23:51 +0000 (UTC) Received: from localhost.localdomain (unknown [10.39.192.162]) by smtp.corp.redhat.com (Postfix) with ESMTP id 03F98C15D70; Tue, 17 May 2022 15:23:47 +0000 (UTC) From: Hans de Goede To: Ben Skeggs , Karol Herbst , Lyude , Daniel Dadap , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , Pan@freedesktop.org, Xinhui , "Rafael J . Wysocki" , Mika Westerberg , Mark Gross , Andy Shevchenko Subject: [PATCH 03/14] drm/amdgpu: Don't register backlight when another backlight should be used Date: Tue, 17 May 2022 17:23:20 +0200 Message-Id: <20220517152331.16217-4-hdegoede@redhat.com> In-Reply-To: <20220517152331.16217-1-hdegoede@redhat.com> References: <20220517152331.16217-1-hdegoede@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.85 on 10.11.54.8 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-acpi@vger.kernel.org, David Airlie , nouveau@lists.freedesktop.org, intel-gfx , dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, Hans de Goede , amd-gfx@lists.freedesktop.org, Len Brown Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Before this commit when we want userspace to use the acpi_video backlight device we register both the GPU's native backlight device and acpi_video's firmware acpi_video# backlight device. This relies on userspace preferring firmware type backlight devices over native ones. Registering 2 backlight devices for a single display really is undesirable, don't register the GPU's native backlight device when another backlight device should be used. Signed-off-by: Hans de Goede --- drivers/gpu/drm/Kconfig | 1 + drivers/gpu/drm/amd/amdgpu/atombios_encoders.c | 7 +++++++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 +++++++ 3 files changed, 15 insertions(+) diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index f1422bee3dcc..ddbeb2124df7 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -280,6 +280,7 @@ config DRM_AMDGPU select HWMON select BACKLIGHT_CLASS_DEVICE select INTERVAL_TREE + select ACPI_VIDEO if ACPI && X86 && INPUT help Choose this option if you have a recent AMD Radeon graphics card. diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c index a92d86e12718..f9c62cd84a18 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c +++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.c @@ -26,6 +26,8 @@ #include +#include + #include #include #include "amdgpu.h" @@ -186,6 +188,11 @@ void amdgpu_atombios_encoder_init_backlight(struct amdgpu_encoder *amdgpu_encode if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_BL_CONTROLLED_BY_GPU)) return; + if (acpi_video_get_backlight_type(true) != acpi_backlight_native) { + DRM_INFO("Skipping amdgpu atom DIG backlight registration\n"); + return; + } + pdata = kmalloc(sizeof(struct amdgpu_backlight_privdata), GFP_KERNEL); if (!pdata) { DRM_ERROR("Memory allocation failed\n"); diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 62139ff35476..a838c7b5d942 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -83,6 +83,8 @@ #include #include +#include + #if defined(CONFIG_DRM_AMD_DC_DCN) #include "ivsrcid/dcn/irqsrcs_dcn_1_0.h" @@ -4079,6 +4081,11 @@ amdgpu_dm_register_backlight_device(struct amdgpu_display_manager *dm) amdgpu_dm_update_backlight_caps(dm, dm->num_of_edps); dm->brightness[dm->num_of_edps] = AMDGPU_MAX_BL_LEVEL; + if (acpi_video_get_backlight_type(true) != acpi_backlight_native) { + DRM_INFO("Skipping amdgpu DM backlight registration\n"); + return; + } + props.max_brightness = AMDGPU_MAX_BL_LEVEL; props.brightness = AMDGPU_MAX_BL_LEVEL; props.type = BACKLIGHT_RAW; -- 2.36.0