RE: Re: [PATCH v3 2/2] serial: 8250_dw: add Ambarella CV75 quirks

Hi Linus,

Thanks for the review and for steering us to 8250_dw. I'll also look
into the Sashiko comment on the lockless UART_IER write.

Best regards!
Long Zhao

Ambarella Shanghai Co., Ltd
-----Original Message-----
From: Linus Walleij <[email protected]> 
Sent: Friday, August 14, 2026 15:00
To: Long Zhao <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>; Jiri Slaby <[email protected]>; Rob Herring <[email protected]>; Krzysztof Kozlowski <[email protected]>; Conor Dooley <[email protected]>; Ilpo Järvinen <[email protected]>; Andy Shevchenko <[email protected]>; [email protected]; [email protected]; [email protected]
Subject: [EXT] Re: [PATCH v3 2/2] serial: 8250_dw: add Ambarella CV75 quirks

On Thu, Aug 13, 2026 at 12:35 PM Long Zhao via B4 Relay <[email protected]> wrote:

> From: Long Zhao <[email protected]>
>
> Add CV75 platform data with an ETOI IER mask and skip-set-rate so the 
> DesignWare 8250 driver can drive the Ambarella UART for console use.
>
> Signed-off-by: Long Zhao <[email protected]>

I see this approach was successful! :)
Look into the Sashiko comment abour lockless write to UART_IER but from my PoV this is fine:
Reviewed-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij

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