This patch series for the RTL9300 I2C driver adds i2c support for
RTL9607C SoC. They are somewhat different to the RTL9300 and
RTL9310 but not enough to warrant a new whole driver.
The patch series was split into patches that add/change something in the
driver to smooth out the RTL9607C support addition in the end and for
ease of review. Because of that, the patch 8 depends on all the prior
patches before it.
RTL9607C primarly uses the i2c controller for communication with laser
driver over on i2c interface 1 or 2.
I have successfully tested the byte read operations on my RTL9607C board
which has GN25L95 laser driver in OpenWrt.
This patch series now depends on the patch [1] from Jan Kantert.
[1] -
https://lore.kernel.org/all/20260227111134.2163701-1-jan-kernel@kantert.net/
---
Changelog in v3
- Patch 7
- reworded the commit message to better describe i2c clock.
- make clocks property available for all compatibles.
- change "realtek,rtl9607-i2c" compatible to be under the same if statement
as "realtek,rtl9310-i2c" for "realtek,scl".
- Link to v2: https://lore.kernel.org/linux-i2c/20260319175753.32338-1-adilov@disroot.org/
Changelog in v2
- rebased on top of the patch from Jan Kantert.
- Patch 7 (to my best understanding of Krzysztof's request):
- added the "clocks: false" for compatibles that are not realtek,rtl9607-i2c.
- Link to v1: https://lore.kernel.org/linux-i2c/20260314082628.25206-1-adilov@disroot.org/
---
Rustam Adilov (8):
i2c: rtl9300: split data_reg into read and write reg
i2c: rtl9300: introduce max length property to driver data
i2c: rtl9300: introduce F_BUSY to the reg_fields struct
i2c: rtl9300: introduce a property for 8 bit width reg address
i2c: rtl9300: introduce clk struct for upcoming rtl9607 support
i2c: rtl9300: intoduce new function properties to driver data
dt-bindings: i2c: realtek,rtl9301-i2c: extend for RTL9607C support
i2c: rtl9300: add RTL9607C i2c controller support
.../bindings/i2c/realtek,rtl9301-i2c.yaml | 10 +-
drivers/i2c/busses/i2c-rtl9300.c | 191 ++++++++++++++----
2 files changed, 165 insertions(+), 36 deletions(-)
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2.53.0