Den 03.02.2017 10.59, skrev Maxime Ripard:
Hi, Here is an attempt at supporting the ST7789V LCD controller from Sitronix.
What happens if there's another panel driven by ST7789V that needs a different controller initialization? Maybe it's better to name it after the panel, not the controller.
It is controlled through an SPI bus, with a twist, since each byte sent must be prefixed by a bit, which needs an 9-bits-per-word SPI controller, which is quite rare. Else, you would need to bitbang it.
It's possible to support SPI controllers that can't do 9-bit by using 8-bit mode and blocks of 9 bytes to send 8x 9-bit words padded with zeroes. Zero is MIPI DCS no-op command. Noralf.
Let me know what you think, Maxime Maxime Ripard (2): dt-bindings: display: panel: Add bindings for the Sitronix ST7789V panel drm/panel: Add driver for sitronix ST7789V panel Documentation/devicetree/bindings/display/panel/sitronix,st7789v.txt | 36 ++++++- drivers/gpu/drm/panel/Kconfig | 4 +- drivers/gpu/drm/panel/Makefile | 1 +- drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 435 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 476 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/panel/sitronix,st7789v.txt create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7789v.c base-commit: 2a6e628efb37432a83bb42b00e3c403b1d8873dd
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