[PATCH v2 3/3] mailbox: mtk-cmdq: Remove unsued cmdq_get_shift_pa()

[Jassi Brar]

On Tue, Mar 24, 2026 at 11:05 PM Jason-JH Lin <jason-jh.lin at mediatek.com> wrote:
>
> Since the mailbox driver data can be obtained using cmdq_get_mbox_priv()
> and all CMDQ users have transitioned to cmdq_get_mbox_priv(),
> cmdq_get_shift_pa() can be removed.
>
> Signed-off-by: Jason-JH Lin <jason-jh.lin at mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> ---
>  drivers/mailbox/mtk-cmdq-mailbox.c       |  8 --------
>  include/linux/mailbox/mtk-cmdq-mailbox.h | 12 ------------
>  2 files changed, 20 deletions(-)
>
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> index d7c6b38888a3..f463f443e834 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -123,14 +123,6 @@ void cmdq_get_mbox_priv(struct mbox_chan *chan, struct cmdq_mbox_priv *priv)
>  }
>  EXPORT_SYMBOL(cmdq_get_mbox_priv);
>
> -u8 cmdq_get_shift_pa(struct mbox_chan *chan)
> -{
> -       struct cmdq *cmdq = container_of(chan->mbox, struct cmdq, mbox);
> -
> -       return cmdq->pdata->shift;
> -}
> -EXPORT_SYMBOL(cmdq_get_shift_pa);
> -
>  static void cmdq_vm_init(struct cmdq *cmdq)
>  {
>         int i;
> diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
> index 07c1bfbdb8c4..a42b44d5fd49 100644
> --- a/include/linux/mailbox/mtk-cmdq-mailbox.h
> +++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
> @@ -96,16 +96,4 @@ struct cmdq_pkt {
>   */
>  void cmdq_get_mbox_priv(struct mbox_chan *chan, struct cmdq_mbox_priv *priv);
>
> -/**
> - * cmdq_get_shift_pa() - get the shift bits of physical address
> - * @chan: mailbox channel
> - *
> - * GCE can only fetch the command buffer address from a 32-bit register.
> - * Some SOCs support more than 32-bit command buffer address for GCE, which
> - * requires some shift bits to make the address fit into the 32-bit register.
> - *
> - * Return: the shift bits of physical address
> - */
> -u8 cmdq_get_shift_pa(struct mbox_chan *chan);
> -
>  #endif /* __MTK_CMDQ_MAILBOX_H__ */

I think the simplest would be to take this with the other two
predecessor patches.
Acked-by: Jassi Brar <jassisinghbrar at gmail.com>