From: Dillon Min dillon.minfei@gmail.com
Since the st,sf-tc240t-9370-t dts binding already exist in stm32f429-disco.dts but, the panel driver didn't get accepted from mainline. it's time to submit patch fot it.
This driver can support two different interface by different dts bindings: - spi+dpi, use spi to configure register, dpi for graphic data. st,sf-tc240t-9370-t - only spi, just like tiny/ili9341.c (actually, this part is copy from tiny) adafruit,yx240qv29
I submited the first patch last year, you can find it at [1]. this patch has one major difference from that one, which is replace the low level communication way, from spi_sync() to mipi_dbi_{command, command_stackbuf}() interface, referred from Linus's patch [2].
both the two dpi/dbi interface was tested on stm32f429-disco board, if anyone want to verify this patch, you need apply the clk patch for this board first, you can get it from [3]
[1] "drm/panel: Add ilitek ili9341 panel driver" https://lore.kernel.org/lkml/1590378348-8115-7-git-send-email-dillon.minfei@...
[2] "drm/panel: s6e63m0: Switch to DBI abstraction for SPI" https://lore.kernel.org/dri-devel/20210611214243.669892-1-linus.walleij@lina...
[3] https://lore.kernel.org/lkml/1590378348-8115-6-git-send-email-dillon.minfei@...
Dillon Min (2): dt-bindings: display: panel: Add ilitek ili9341 panel bindings drm/panel: Add ilitek ili9341 panel driver
.../bindings/display/panel/ilitek,ili9341.yaml | 69 ++ drivers/gpu/drm/panel/Kconfig | 12 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-ilitek-ili9341.c | 778 +++++++++++++++++++++ 4 files changed, 860 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9341.c