[PATCH v1 2/2] ufs: mtk-host: Add MCQ feature

[AngeloGioacchino Del Regno]

Il 26/10/22 09:39, Eddie Huang ha scritto:
> Add Mediatek mcq resource and runtime configuration function
> to support MCQ capability
> 
> Signed-off-by: Eddie Huang <eddie.huang at mediatek.com>
> ---
>   drivers/ufs/host/ufs-mediatek.c | 37 +++++++++++++++++++++++++++++++++++++
>   drivers/ufs/host/ufs-mediatek.h |  7 +++++++
>   2 files changed, 44 insertions(+)
> 
> diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
> index c958279..3f5fc05 100644
> --- a/drivers/ufs/host/ufs-mediatek.c
> +++ b/drivers/ufs/host/ufs-mediatek.c

..snip..

> +
> +static int ufs_mtk_config_mcq_resource(struct ufs_hba *hba)
> +{
> +	hba->mcq_base = hba->mmio_base +
> +					MCQ_QUEUE_OFFSET(hba->mcq_capabilities);

This seems to either be an additional usecase that should be implemented into the
API and not in MediaTek drivers, (as in that case I believe MediaTek won't be the
only user of such usecase)... or just a way to avoid adding the MCQ iospace to the
UFS devicetree node.

Please clarify.

Thanks,
Angelo