[PATCH 2/2] ufs: mediatek: Implement get_hba_nortt callback for RTT capability
Peter Wang (王信友)
peter.wang at mediatek.com
Tue Jun 9 22:34:13 PDT 2026
On Tue, 2026-06-09 at 18:38 +0800, ed.tsai at mediatek.com wrote:
> From: Ed Tsai <ed.tsai at mediatek.com>
>
> Implement the get_hba_nortt callback to handle platform-specific RTT
> capability differences:
>
> - For legacy platforms and IP versions before MT6995 B0, the RTT
> capability from host controller register is problematic, so limit
> it to 2 (MTK_MAX_NUM_RTT_LEGACY).
>
> - For MT6995 B0 and later platforms, the issue is fixed and the
> value from host controller capability register can be used
> directly.
>
> This replaces the previous max_num_rtt field in ufs_hba_variant_ops
> with dynamic platform-specific logic.
>
> Signed-off-by: Ed Tsai <ed.tsai at mediatek.com>
> ---
Reviewed-by: Peter Wang <peter.wang at mediatek.com>
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