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| author | Noralf Trønnes <noralf@tronnes.org> | 2022-02-27 13:47:13 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2022-02-28 10:29:33 +0100 |
| commit | 0e65e2e6abb09d84a75c51999e3a6cf80f30c929 (patch) | |
| tree | 9828376eaec7e57d724fdb04cb4787cdd3a638f2 /drivers/gpu/drm/tiny/Makefile | |
| parent | 1e7e8e18db0fdd4da4e91597cf4d59265b8f351f (diff) | |
| download | linux-0e65e2e6abb09d84a75c51999e3a6cf80f30c929.tar.gz | |
drm/tiny: Add MIPI DBI compatible SPI driver
Add a driver that will work with most MIPI DBI compatible SPI panels.
This avoids adding a driver for every new MIPI DBI compatible controller
that is to be used by Linux. The 'compatible' Device Tree property with
a '.bin' suffix will be used to load a firmware file that contains the
controller configuration.
Example (driver will load sainsmart18.bin):
display@0 {
compatible = "sainsmart18", "panel-mipi-dbi-spi";
...
};
v5:
- kconfig: s/DRM_KMS_CMA_HELPER/DRM_GEM_CMA_HELPER/ (Sam)
- kconfig: Add select VIDEOMODE_HELPERS (Sam)
- kconfig: Add wiki url in the description (Sam)
- Split out and use of_get_drm_panel_display_mode()(Sam)
- Only use the first compatible to look for a firmware file since the
binding mandates 2 compatibles.
- Make having a firmware file mandatory so we can print an error
message if it's missing to improve the user experience. It's very
unlikely that a controller doesn't need to be initialized and if
it doesn't, it's possible to have a firmware file containing only
a DCS NOP.
v4:
- Move driver to drm/tiny where the other drivers of its kind are located.
The driver module will not be shared with a future DPI driver after all.
v3:
- Move properties to DT (Maxime)
- The MIPI DPI spec has optional support for DPI where the controller is
configured over DBI. Rework the command functions so they can be moved
to drm_mipi_dbi and shared with a future panel-mipi-dpi-spi driver
v2:
- Drop model property and use compatible instead (Rob)
- Add wiki entry in MAINTAINERS
Acked-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220227124713.39766-6-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/tiny/Makefile')
| -rw-r--r-- | drivers/gpu/drm/tiny/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile index 5d5505d40e7b..1d9d6227e7ab 100644 --- a/drivers/gpu/drm/tiny/Makefile +++ b/drivers/gpu/drm/tiny/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_DRM_ARCPGU) += arcpgu.o obj-$(CONFIG_DRM_BOCHS) += bochs.o obj-$(CONFIG_DRM_CIRRUS_QEMU) += cirrus.o obj-$(CONFIG_DRM_GM12U320) += gm12u320.o +obj-$(CONFIG_DRM_PANEL_MIPI_DBI) += panel-mipi-dbi.o obj-$(CONFIG_DRM_SIMPLEDRM) += simpledrm.o obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o obj-$(CONFIG_TINYDRM_ILI9163) += ili9163.o |