[PATCH v2] ath11k: add read variant from SMBIOS for download board data

[Kalle Valo]

Wen Gong <quic_wgong at quicinc.com> writes:

> This is to read variant from SMBIOS such as read from DT, the variant
> string will be used to one part of string which used to search board
> data from board-2.bin.
>
> Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
>
> Signed-off-by: Wen Gong <quic_wgong at quicinc.com>

[...]

> +int ath11k_core_check_smbios(struct ath11k_base *ab)
> +{
> +	ab->qmi.target.bdf_ext[0] = '\0';
> +	dmi_walk(ath11k_core_check_bdfext, ab);

For consistency I added error handling for dmi_walk().

> diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h
> index bbfc10fd5c6d..b234514e7138 100644
> --- a/drivers/net/wireless/ath/ath11k/core.h
> +++ b/drivers/net/wireless/ath/ath11k/core.h
> @@ -952,7 +952,18 @@ int ath11k_core_fetch_bdf(struct ath11k_base *ath11k,
>  			  struct ath11k_board_data *bd);
>  void ath11k_core_free_bdf(struct ath11k_base *ab, struct ath11k_board_data *bd);
>  int ath11k_core_check_dt(struct ath11k_base *ath11k);
> +/* SMBIOS type containing Board Data File Name Extension */
> +#define ATH11K_SMBIOS_BDF_EXT_TYPE 0xF8
>  
> +/* SMBIOS type structure length (excluding strings-set) */
> +#define ATH11K_SMBIOS_BDF_EXT_LENGTH 0x9
> +
> +/* Offset pointing to Board Data File Name Extension */
> +#define ATH11K_SMBIOS_BDF_EXT_OFFSET 0x8
> +
> +/* The magic used by QCA spec */
> +#define ATH11K_SMBIOS_BDF_EXT_MAGIC "BDF_"
> +int ath11k_core_check_smbios(struct ath11k_base *ab);
>  void ath11k_core_halt(struct ath11k *ar);
>  int ath11k_core_resume(struct ath11k_base *ab);
>  int ath11k_core_suspend(struct ath11k_base *ab);

This was an awkward place for the defines, so I moved up in the file.

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