Re: [PATCH V6 3/3] i2c: xiic: Add SCL frequency configuration support
From: Wolfram Sang
Date: Fri Feb 17 2023 - 16:45:43 EST
On Wed, Feb 15, 2023 at 07:02:24PM +0530, Manikanta Guntupalli wrote:
> From: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>
>
> From 'clock-frequency' device tree property, configure I2C SCL
> frequency by calculating the timing register values according to
> input clock.
>
> After soft reset in reinit function, the timing registers are set
> to default values (configured in design tool). So, setting SCL
> frequency is done inside reinit function after the soft reset.
> This allows configuration of SCL frequency exclusively through
> software via device tree property, overriding the design.
> If the clock-frequency parameter is not specified in DT, driver
> doesn't configure frequency, making it backward compatible.
>
> Signed-off-by: Raviteja Narayanam <raviteja.narayanam@xxxxxxxxxx>
> Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@xxxxxxx>
> Acked-by: Michal Simek <michal.simek@xxxxxxx>
Applied to for-next, thanks!
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