Re: [PATCH v2 1/4] dt-bindings: arm: ras: Introduce bindings for ARM RAS error sources

[Trilok Soni]

On 7/20/2026 1:19 AM, Umang Chheda wrote:
> ARMv8 and later processors implement the RAS (Reliability,
> Availability and Serviceability) extensions, exposing hardware
> error records through a standardised register interface.
> 
> Add Device Tree bindings to describe RAS error sources.
> 
> Signed-off-by: Umang Chheda <umang.chheda@xxxxxxxxxxxxxxxx>

...

\> diff --git a/include/dt-bindings/arm/arm-ras.h b/include/dt-bindings/arm/arm-ras.h
> new file mode 100644
> index 000000000000..c2f4e1f8243e
> --- /dev/null
> +++ b/include/dt-bindings/arm/arm-ras.h
> @@ -0,0 +1,11 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +
> +#ifndef _DT_BINDINGS_ARM_RAS_H
> +#define _DT_BINDINGS_ARM_RAS_H
> +
> +/* arm,group-format - error record group register window page size */
> +#define ARM_RAS_GROUP_4K		0	/* 4 KiB,  1 ERRGSR  */
> +#define ARM_RAS_GROUP_16K		1	/* 16 KiB, 4 ERRGSRs */
> +#define ARM_RAS_GROUP_64K		2	/* 64 KiB, 14 ERRGSRs */

Do you want me to have different DT for 4k and 16k and 64k? This is not a right approach. 


> +
> +#endif /* _DT_BINDINGS_ARM_RAS_H */
> --
> 2.34.1
> 
>