[PATCH v3 0/3] Add driver for Himax HX8279 DriverIC panels

From: AngeloGioacchino Del Regno
Date: Thu Apr 10 2025 - 03:30:30 EST


Changes in v3:
- Added support for setting digital gamma parameters and validity check
- Added support for setting analog gamma parameters
- Changed gout_{l,r} to a structure and added a description
- Fixed DSI LPM/HS setting in prepare/unprepare callbacks
- Remove forced panel off in probe function as that was simply
useless
- Renamed function hx8279_check_config to hx8279_check_params
as that is actually checking multiple parameters and not just
basic DDIC configuration
- Moved the GMUX and GOA validation to their own functions to
improve readability

Changes in v2:
- Removed unneeded mipi_dsi_device_unregister() call for secondary
DSI: as the driver is using devm, that's not necessary (CJ)
- Removed superfluous if branch as pointed out by CJ

This series adds a driver for DSI panels using the Himax HX8279 and
HX8279-D DriverICs, and introduces two panels using such a configuration,
the Startek KX070FHFID078, found on some MediaTek Genio Evaluation Kits,
and the Aoly SL101PM1794FOG-v15 usually found on some I.MX8MM boards.

This panel is found on the latest hardware revisions of some MediaTek
Genio Evaluation Kits, and specifically, at least:
- Genio 510 EVK
- Genio 700 EVK
- Genio 1200 EVK

This driver was tested on all of the aforementioned boards.

AngeloGioacchino Del Regno (3):
dt-bindings: vendor-prefixes: Add Shenzhen Aoly Technology Co., Ltd.
dt-bindings: display: panel: Add Himax HX8279/HX8279-D DDIC panels
drm: panel: Add driver for Himax HX8279 DDIC panels

.../bindings/display/panel/himax,hx8279.yaml | 75 +
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
drivers/gpu/drm/panel/Kconfig | 11 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-himax-hx8279.c | 1365 +++++++++++++++++
5 files changed, 1454 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/himax,hx8279.yaml
create mode 100644 drivers/gpu/drm/panel/panel-himax-hx8279.c

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2.49.0