RE: [EXT] [PATCH v1 4/4] scsi: ufs-mediatek: enable WriteBooster capability

From: Bean Huo (beanhuo)
Date: Wed Apr 29 2020 - 06:19:46 EST


> -----Original Message-----
> From: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
> Sent: Tuesday, April 28, 2020 1:14 PM
> To: linux-scsi@xxxxxxxxxxxxxxx; martin.petersen@xxxxxxxxxx;
> avri.altman@xxxxxxx; alim.akhtar@xxxxxxxxxxx; jejb@xxxxxxxxxxxxx;
> asutoshd@xxxxxxxxxxxxxx
> Cc: Bean Huo (beanhuo) <beanhuo@xxxxxxxxxx>; cang@xxxxxxxxxxxxxx;
> matthias.bgg@xxxxxxxxx; bvanassche@xxxxxxx; linux-
> mediatek@xxxxxxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; kuohong.wang@xxxxxxxxxxxx;
> peter.wang@xxxxxxxxxxxx; chun-hung.wu@xxxxxxxxxxxx;
> andy.teng@xxxxxxxxxxxx; Stanley Chu <stanley.chu@xxxxxxxxxxxx>
> Subject: [EXT] [PATCH v1 4/4] scsi: ufs-mediatek: enable WriteBooster capability
>
> Enable WriteBooster capability on MediaTek UFS platforms.
>
> Signed-off-by: Stanley Chu <stanley.chu@xxxxxxxxxxxx>
> ---
> drivers/scsi/ufs/ufs-mediatek.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
> index 673c16596fb2..15b9c420a3a5 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -263,6 +263,9 @@ static int ufs_mtk_init(struct ufs_hba *hba)
> /* Enable clock-gating */
> hba->caps |= UFSHCD_CAP_CLK_GATING;
>
> + /* Enable WriteBooster */
> + hba->caps |= UFSHCD_CAP_WB_EN;
> +
> /*
> * ufshcd_vops_init() is invoked after
> * ufshcd_setup_clock(true) in ufshcd_hba_init() thus
> --
> 2.18.0

Reviewed-by: Bean Huo <beanhuo@xxxxxxxxxx>