Re: [PATCH 7/9] soc: qcom: smem: expose SoC identification in the environment

[Tom Rini]

On Fri, Oct 02, 2026 at 04:44:50AM +0800, Qing Li wrote:

> qcom_socinfo_init() already exports the serial number. Also export the
> socinfo id, version, raw id/version and the chip name so board scripts
> can distinguish SoC revisions and select the matching device tree
> without decoding SMEM themselves.
> 
> Signed-off-by: Qing Li <lqing2...@gmail.com>
> ---
>  drivers/soc/qcom/smem.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
> index e20523e2cec..cf433957bc2 100644
> --- a/drivers/soc/qcom/smem.c
> +++ b/drivers/soc/qcom/smem.c
> @@ -1014,6 +1014,16 @@ int qcom_socinfo_init(void)
>               return -ENOENT;
>       }
>  
> +     /* Expose the SoC identification for board scripts and diagnostics */
> +     env_set_ulong("socinfo_id", le32_to_cpu(info->id));
> +     env_set_ulong("socinfo_ver", le32_to_cpu(info->ver));
> +     if (offsetof(struct socinfo, raw_id) + sizeof(info->raw_id) <= 
> item_size) {
> +             env_set_ulong("socinfo_raw_id", le32_to_cpu(info->raw_id));
> +             env_set_ulong("socinfo_raw_ver", le32_to_cpu(info->raw_ver));
> +     }
> +     if (offsetof(struct socinfo, chip_id) + SMEM_SOCINFO_CHIP_ID_LENGTH <= 
> item_size)
> +             env_set("socinfo_chip", info->chip_id);

These variables should be documented under doc/ somewhere in rST, and
done in this same patch.

-- 
Tom

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