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+.
Changelog:
v4:
General:
- Patch series based in kernel v7.3-rc1
Driver:
- Fixed nits found by Christophe JAILLET.
- Fixed max_width and max_height in modeset to avoid having bigger
framebuffers than resolution.
v3: [5]
- General:
- Patch series based in kernel v7.2
- In dt-bindings:
- Removed "chipwealth,contrast" property (added backlight_device
support in driver's code)
- Renamed "chipwealth,invert" -> "chipwealth,inverted"
- Added default value to "chipwealth,offset"
- Removed 'status = "okay"' from example
- Indented example with 4 spaces as stated in the documentation [4]
- In driver code:
- Added support for backlight_device
- Replaced drm_dev_unregister with drm_dev_unplug to cover the dt
overlay unload case
- Executing drm shutdown operations before turning off the display
- Checking that the width (panel-timing.hactive) and height
(panel-timing.vactive) parameters are greater than 0
v2: [3]
- General:
- Patch series based in kernel v7.2
- In dt-bindings:
- Fixed linter problems
- Replaced first_page property with offset
- In driver code:
- Fixed dst_pitch calculation
- Renamed file from ch1115.c to ch1115-i2c.c
- Support flip-vertical and flip-horizontal dt properties
- Fixed several things found by sashiko-ai
v1: [2]
[1] https://datasheet4u.com/download/1576606/CH1115.html
[2] https://lore.kernel.org/all/[email protected]/
[3] https://lore.kernel.org/all/[email protected]/
[4]
https://docs.kernel.org/devicetree/bindings/writing-schema.html#annotated-example-schema
[5] https://lore.kernel.org/all/[email protected]/
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 | 81 ++
.../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-i2c.c | 885 ++++++++++++++++++
8 files changed, 995 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-i2c.c
--
2.47.3
