linux-kernel - Re: [PATCH v1 3/4] scsi: ufs-mediatek: configure customized auto-hibern8 timer

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Message-ID: <CAGOxZ50orn8JYxvCv4S6ziMdnB6+BG0DSdkand=x9Vw3H-Dejw@mail.gmail.com>
Date:   Thu, 19 Dec 2019 23:55:41 +0530
From:   Alim Akhtar <alim.akhtar@...il.com>
To:     Stanley Chu <stanley.chu@...iatek.com>
Cc:     linux-scsi@...r.kernel.org,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Avri Altman <avri.altman@....com>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Pedro Sousa <pedrom.sousa@...opsys.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        open list <linux-kernel@...r.kernel.org>,
        "Bean Huo (beanhuo)" <beanhuo@...ron.com>,
        Kuohong Wang <kuohong.wang@...iatek.com>,
        peter.wang@...iatek.com, chun-hung.wu@...iatek.com,
        andy.teng@...iatek.com
Subject: Re: [PATCH v1 3/4] scsi: ufs-mediatek: configure customized
 auto-hibern8 timer

On Fri, Dec 13, 2019 at 3:04 PM Stanley Chu <stanley.chu@...iatek.com> wrote:
>
> Configure customized auto-hibern8 timer in MediaTek Chipsets.
>
> Signed-off-by: Stanley Chu <stanley.chu@...iatek.com>

Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>
> ---
>  drivers/scsi/ufs/ufs-mediatek.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
> index 690483c78212..71e2e0e4ea11 100644
> --- a/drivers/scsi/ufs/ufs-mediatek.c
> +++ b/drivers/scsi/ufs/ufs-mediatek.c
> @@ -7,6 +7,7 @@
>   */
>
>  #include <linux/arm-smccc.h>
> +#include <linux/bitfield.h>
>  #include <linux/of.h>
>  #include <linux/of_address.h>
>  #include <linux/phy/phy.h>
> @@ -300,6 +301,13 @@ static int ufs_mtk_post_link(struct ufs_hba *hba)
>         /* enable unipro clock gating feature */
>         ufs_mtk_cfg_unipro_cg(hba, true);
>
> +       /* configure auto-hibern8 timer to 10ms */
> +       if (ufshcd_is_auto_hibern8_supported(hba)) {
> +               ufshcd_auto_hibern8_update(hba,
> +                       FIELD_PREP(UFSHCI_AHIBERN8_TIMER_MASK, 10) |
> +                       FIELD_PREP(UFSHCI_AHIBERN8_SCALE_MASK, 3));
> +       }
> +
>         return 0;
>  }
>
> --
> 2.18.0



-- 
Regards,
Alim