Some Poco F1 phones from Xiaomi have a FHD+ video mode panel based on the
Novatek NT36672A display controller; Add support for the same.
Most of the panel data is taken from downstream panel dts, and is converted to
drm-panel based driver by me.
It has been validated with v5.9-rc1 based drm-misc-next on Poco F1 phone; my
tree with other
dependent patches is here [1]
[1]:
https://git.linaro.org/people/sumit.semwal/linux-dev.git/log/?h=dev/poco-panel-upstreaming
---
v2: In dt-binding, removed ports node, making port@0 directly under panel@0
node.
Also updated the panel_on delay to a safer 200ms as needed for latest
Android.
v3: Replaced port@0 with just port in panel@0 node.
v4: Since "0425662fdf05: drm: Nuke mode->vrefresh", we have to calculate
vrefresh on demand. Update for it.
v5: Fixed review comments from Sam:
- rebased on top of drm-misc-next
remove return of drm_panel_add()
remove drm_panel_detach()
- renamed the panel driver file to reflect that this is a novatek
nt36672a display driver and not only for tianma panels.
Adjusted some internal names also to reflect the same.
- corrected changelog to add info about the generic Novatek DSI IC
- corrected compatible string accordingly
- removed pinctrl
- used drm_panel* API for prepare/unprepare/disable/remove
v6: Fixed few review comments on v5 from Sam:
- add dev_err_probe() support
- move DRM_* error printing to dev_err()
- removed a few unnecessary bits
v7: Fixed review comments on v6 from Bjorn:
- Reworked the send_mipi_commands functionality
- removed regulator disable_loads; moved active_load setting to probe
time
- made function names and struct less generic
- updated the reset_gpio working to active_low
- update MAINTAINERS for file name changes
Sumit Semwal (2):
dt-bindings: display: panel: Add bindings for Novatek nt36672a
drm: panel: Add novatek nt36672a panel driver
.../display/panel/novatek,nt36672a.yaml | 87 +++
MAINTAINERS | 7 +
drivers/gpu/drm/panel/Kconfig | 10 +
drivers/gpu/drm/panel/Makefile| 1 +
.../gpu/drm/panel/panel-novatek-nt36672a.c| 711 ++
5 files changed, 816 insertions(+)
create mode 100644
Documentation/devicetree/bindings/display/panel/novatek,nt36672a.yaml
create mode 100644 drivers/gpu/drm/panel/panel-novatek-nt36672a.c
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2.28.0
