From: Mario Limonciello <mario.limonciello@amd.com>
To: <amd-gfx@lists.freedesktop.org>,
Alex Deucher <alexander.deucher@amd.com>,
Harry Wentland <harry.wentland@amd.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Hans de Goede <hdegoede@redhat.com>
Cc: "open list:ACPI" <linux-acpi@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
"open list:DRM DRIVERS" <dri-devel@lists.freedesktop.org>,
Melissa Wen <mwen@igalia.com>,
"Mark Pearson" <mpearson-lenovo@squebb.ca>,
Mario Limonciello <mario.limonciello@amd.com>
Subject: [PATCH v3 0/5] Add support for fetching EDID from ACPI _DDC
Date: Thu, 1 Feb 2024 16:11:14 -0600 [thread overview]
Message-ID: <20240201221119.42564-1-mario.limonciello@amd.com> (raw)
Some laptops ship an EDID in the BIOS encoded in the _DDC method that
differs than the EDID directly on the laptop panel for $REASONS.
This is the EDID that is used by the AMD Windows driver, and so sometimes
different results are found in different operating systems.
This series adds a new DRM helper that will use acpi_video to fetch the
EDID.
On amdgpu when an eDP panel is found the BIOS
is checked first for an EDID and that used as a preference if found.
On nouveau it replaces the previous local function doing a similar role.
This does *not* use struct drm_edid as this will require more involved
amdgpu display driver work that will come separately as part of follow-ups
to: https://lore.kernel.org/amd-gfx/20240126163429.56714-1-mwen@igalia.com/
v2-v3:
* Clean up some of the 'select ACPI_VIDEO' kconfig spaghetti reported by LKP
* Drop the 'select ACPI_VIDEO' from the DRM drivers
Mario Limonciello (5):
ACPI: video: Handle fetching EDID that is longer than 256 bytes
drm: Add drm_get_acpi_edid() helper
drm/amd: Fetch the EDID from _DDC if available for eDP
drm/nouveau: Use drm_get_acpi_edid() helper
drm: Drop unneeded selects in DRM drivers
drivers/acpi/acpi_video.c | 25 +++----
drivers/gpu/drm/Kconfig | 5 ++
drivers/gpu/drm/amd/amdgpu/Kconfig | 7 --
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
.../gpu/drm/amd/amdgpu/amdgpu_connectors.c | 4 +
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 8 ++
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 10 ++-
.../amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 9 ++-
drivers/gpu/drm/drm_edid.c | 73 +++++++++++++++++++
drivers/gpu/drm/gma500/Kconfig | 6 --
drivers/gpu/drm/i915/Kconfig | 7 --
drivers/gpu/drm/nouveau/nouveau_acpi.c | 27 -------
drivers/gpu/drm/nouveau/nouveau_acpi.h | 2 -
drivers/gpu/drm/nouveau/nouveau_connector.c | 2 +-
drivers/gpu/drm/radeon/Kconfig | 7 --
drivers/gpu/drm/xe/Kconfig | 6 --
include/drm/drm_edid.h | 1 +
17 files changed, 116 insertions(+), 84 deletions(-)
--
2.34.1
next reply other threads:[~2024-02-01 22:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-01 22:11 Mario Limonciello [this message]
2024-02-01 22:11 ` [PATCH v3 1/5] ACPI: video: Handle fetching EDID that is longer than 256 bytes Mario Limonciello
2024-02-02 16:07 ` Rafael J. Wysocki
2024-02-02 16:09 ` Mario Limonciello
2024-02-06 19:43 ` Rafael J. Wysocki
2024-02-01 22:11 ` [PATCH v3 2/5] drm: Add drm_get_acpi_edid() helper Mario Limonciello
2024-02-02 10:24 ` Pranjal Ramajor Asha Kanojiya
2024-02-02 10:29 ` Jani Nikula
2024-02-02 15:19 ` Mario Limonciello
2024-02-01 22:11 ` [PATCH v3 3/5] drm/amd: Fetch the EDID from _DDC if available for eDP Mario Limonciello
2024-02-03 12:53 ` kernel test robot
2024-02-01 22:11 ` [PATCH v3 4/5] drm/nouveau: Use drm_get_acpi_edid() helper Mario Limonciello
2024-02-01 22:11 ` [PATCH v3 5/5] drm: Drop unneeded selects in DRM drivers Mario Limonciello
2024-02-02 10:12 ` Pranjal Ramajor Asha Kanojiya
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