[PATCH 0/4] Add I2C support on TH1520

[Thomas Bonnefille]

On 4/25/24 11:00 AM, Conor Dooley wrote:
> On Thu, Apr 25, 2024 at 10:21:31AM +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.
> 
> https://lore.kernel.org/linux-riscv/20240103132852.298964-1-emil.renner.berthing@canonical.com/
> https://lore.kernel.org/linux-riscv/20240110-clk-th1520-v1-0-8b0682567984@tenstorrent.com/
> 
> These seem to be the most recent versions of each. I guess they're both
> just waiting for their authors to have the time to get another version
> written.

Yes, actually, I used Emil's patch with a custom pinctrl configuration 
to test the I2C. It appeared to be ready enough for my use.