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RE: [PATCH 4/4] xen/arm: pl011: Add SBSA UART device-tree support
- To: Michal Orzel <michal.orzel@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Henry Wang <Henry.Wang@xxxxxxx>
- Date: Tue, 13 Jun 2023 03:00:02 +0000
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Tue, 13 Jun 2023 03:00:18 +0000
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- Thread-topic: [PATCH 4/4] xen/arm: pl011: Add SBSA UART device-tree support
Hi Michal,
> -----Original Message-----
> Subject: [PATCH 4/4] xen/arm: pl011: Add SBSA UART device-tree support
>
> We already have all the bits necessary in PL011 driver to support SBSA
> UART thanks to commit 032ea8c736d10f02672863c6e369338f948f7ed8 that
> enabled it for ACPI. Plumb in the remaining part for device-tree boot:
> - add arm,sbsa-uart compatible to pl011_dt_match (no need for a separate
> struct and DT_DEVICE_START as SBSA is a subset of PL011),
> - from pl011_dt_uart_init(), check for SBSA UART compatible to determine
> the UART type in use.
>
> Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
Reviewed-by: Henry Wang <Henry.Wang@xxxxxxx>
I've also tested this patch on top of today's staging on FVP arm32 and arm64
and confirm this patch will not break existing functionality. So:
Tested-by: Henry Wang <Henry.Wang@xxxxxxx>
Kind regards,
Henry
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