[PATCH 0/3] Add support for CH1115 Controller
From: Nicolás Antinori
Date: Fri Aug 07 2026 - 10:22:33 EST
This series add support for the CH1115 Controller [1].
It is a monochrome dot matrix OLED controller that supports several
interfaces such as SPI and I2C.
This driver only supports the I2C interface, but all common parts could
easily be put into a common file to be used with other interfaces.
I only have I2C to test with.
This is the first driver I write. The work is based on the driver
located at:
- drivers/gpu/drm/sitronix/st7571-i2c.c
- drivers/gpu/drm/sitronix/st7571.c
Tested with Raspberry Pi 3b+.
Thanks,
Nicolás
[1] https://datasheet4u.com/download/1576606/CH1115.html
Nicolás Antinori (3):
dt-bindings: display: add Chipwealth CH1115 OLED Controller
drm/ch1115: add support for Chipwealth CH1115 OLED controller
MAINTAINERS: add entry for Chipwealth CH1115 OLED Controller
.../bindings/display/chipwealth,ch1115.yaml | 73 ++
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
MAINTAINERS | 6 +
drivers/gpu/drm/Kconfig | 1 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/chipwealth/Kconfig | 16 +
drivers/gpu/drm/chipwealth/Makefile | 3 +
drivers/gpu/drm/chipwealth/ch1115.c | 828 ++++++++++++++++++
8 files changed, 930 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/chipwealth,ch1115.yaml
create mode 100644 drivers/gpu/drm/chipwealth/Kconfig
create mode 100644 drivers/gpu/drm/chipwealth/Makefile
create mode 100644 drivers/gpu/drm/chipwealth/ch1115.c
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2.47.3