Re: [PATCH 01/10] ufs: unipro: Move Tx/Rx FSM state definitions to unipro.h

[Frank Li]

On Wed, Aug 26, 2026 at 03:40:39PM +0200, Larisa Grigore wrote:
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>
> Move the Tx/Rx FSM state definitions from ufshcd-dwc.h to
> include/ufs/unipro.h.
>
> These state values are UniPro/M-PHY related and are not specific to
> the DesignWare UFS host controller implementation, so unipro.h is a
> more appropriate location for sharing them.
>
> As part of this move, drop the driver-private TX_FSM_HIBERN8 define in
> ufs-hisi and ufs-qcom and repoint their Hibern8 checks at the shared
> TX_STATE_HIBERN8 enum constant. This is a no-op change: TX_FSM_HIBERN8
> was 0x1 and TX_STATE_HIBERN8 is 1, so the compared values are identical.
>
> This also prepares for using these definitions in a subsequent commit.
>
> Signed-off-by: Larisa Grigore <larisa.grigore@xxxxxxxxxxx>
> ---
...
> -enum rx_fsm_state {
> -       RX_STATE_DISABLED = 0,
> -       RX_STATE_HIBERN8 = 1,
> -       RX_STATE_SLEEP = 2,
> -       RX_STATE_STALL = 3,
> -       RX_STATE_LSBURST = 4,
> -       RX_STATE_HSBURST = 5,
> -};
> -
> -enum tx_fsm_state {
> -       TX_STATE_DISABLED = 0,
> -       TX_STATE_HIBERN8 = 1,
> -       TX_STATE_SLEEP = 2,
> -       TX_STATE_STALL = 3,
> -       TX_STATE_LSBURST = 4,
> -       TX_STATE_HSBURST = 5,
> -};
> -
>  struct ufshcd_dme_attr_val {
>         u32 attr_sel;
>         u32 mib_val;
> diff --git a/include/ufs/unipro.h b/include/ufs/unipro.h
> index 9c168703b104..bf063edc284d 100644
> --- a/include/ufs/unipro.h
> +++ b/include/ufs/unipro.h
> @@ -466,4 +466,23 @@ enum {
>         CPORT_CONNECTED,
>  };
>
> +/* Tx/Rx FSM state */
> +enum ufs_rx_fsm_state {
> +       RX_STATE_DISABLED = 0,
> +       RX_STATE_HIBERN8 = 1,
> +       RX_STATE_SLEEP = 2,
> +       RX_STATE_STALL = 3,
> +       RX_STATE_LSBURST = 4,
> +       RX_STATE_HSBURST = 5,
> +};
> +
> +enum ufs_tx_fsm_state {
> +       TX_STATE_DISABLED = 0,
> +       TX_STATE_HIBERN8 = 1,
> +       TX_STATE_SLEEP = 2,
> +       TX_STATE_STALL = 3,
> +       TX_STATE_LSBURST = 4,
> +       TX_STATE_HSBURST = 5,
> +};

Suppose ref RX(TX)_FSM_State in mipi m-phy speci v6.0, table 50 M-RX status
attributes. you add ref to mipi M-phy to let reader know it is really
defined by spec, not dwc implementation.

Both value are the same, why need define two copy.

Frank

> +
>  #endif /* _UNIPRO_H_ */
> --
> 2.43.0
>
>