Re: [PATCH 0/2] drm/panel: Add support for the Sitronix ST7789V

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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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