[PATCH 0/4] Add I2C support on TH1520

[Rob Herring]

On Thu, 25 Apr 2024 10:21:31 +0200, Thomas Bonnefille wrote:
> This adds I2C support in the device tree of the T-Head TH1520 RISCV-SoC
> and a default configuration for the BeagleV-Ahead. It appears that the
> TH1520 I2C is already supported in the upstream kernel through the
> Synopsis Designware I2C adapter driver.
> As there is no clock driver for this board as of today, this patch
> series uses a fixed-clock named i2c_ic_clk.
> There is also no pinctrl driver yet so pinmux must be handled manually
> for now.
> It also fixes the order of the nodes in the device tree to comply with
> device-tree coding-style.
> 
> Thomas Bonnefille (4):
>   dt-bindings: i2c: dw: Document compatible thead,th1520-i2c
>   riscv: boot: dts: thead: Fix node ordering in TH1520 device tree
>   riscv: dts: thead: Add TH1520 I2C nodes
>   riscv: dts: thead: Enable I2C on the BeagleV-Ahead
> 
>  .../bindings/i2c/snps,designware-i2c.yaml     |  12 ++
>  .../boot/dts/thead/th1520-beaglev-ahead.dts   |  22 ++++
>  arch/riscv/boot/dts/thead/th1520.dtsi         | 120 ++++++++++++++----
>  3 files changed, 127 insertions(+), 27 deletions(-)
> 
> --
> 2.44.0
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


New warnings running 'make CHECK_DTBS=y thead/th1520-beaglev-ahead.dtb' for 20240425082138.374445-1-thomas.bonnefille at bootlin.com:

arch/riscv/boot/dts/thead/th1520-beaglev-ahead.dtb: i2c-clock: clock-frequency:0:0: 50000000 is greater than the maximum of 5000000
	from schema $id: http://devicetree.org/schemas/i2c/i2c-controller.yaml#