Re: [PATCH 03/12] pm80xx : Convert 'long' mdelay to msleep.

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On Thu, Oct 31, 2019 at 6:12 AM Deepak Ukey <deepak.ukey@xxxxxxxxxxxxx> wrote:
>
> From: Vikram Auradkar <auradkar@xxxxxxxxxx>
>
> For delays longer than 20ms [um]delay isn't recommended.
> pm80xx_chip_soft_rst starts off with a 500ms delay before it even
> gets around to checking for the results of the reset. As long as
> it's at least 500ms it doesn't matter what the scheduler is doing.
> The delay in the pm8001_exec_internal_task_abort does nothing, and
> theory is this is a delay to avoid a double-free.
>
> Signed-off-by: Vikram Auradkar <auradkar@xxxxxxxxxx>
> Signed-off-by: Deepak Ukey <deepak.ukey@xxxxxxxxxxxxx>
> Signed-off-by: Viswas G <Viswas.G@xxxxxxxxxxxxx>
looks good, thanks
Acked-by: Jack Wang <jinpu.wang@xxxxxxxxxxxxxxx>
> ---
>  drivers/scsi/pm8001/pm80xx_hwi.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
> index ee9c187d8caa..1a1adda15db8 100644
> --- a/drivers/scsi/pm8001/pm80xx_hwi.c
> +++ b/drivers/scsi/pm8001/pm80xx_hwi.c
> @@ -1241,7 +1241,7 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
>                 pm8001_printk("reset register before write : 0x%x\n", regval));
>
>         pm8001_cw32(pm8001_ha, 0, SPC_REG_SOFT_RESET, SPCv_NORMAL_RESET_VALUE);
> -       mdelay(500);
> +       msleep(500);
>
>         regval = pm8001_cr32(pm8001_ha, 0, SPC_REG_SOFT_RESET);
>         PM8001_INIT_DBG(pm8001_ha,
> @@ -2986,7 +2986,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
>         pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
>         spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
>         if (pm8001_ha->flags == PM8001F_RUN_TIME)
> -               mdelay(200);/*delay a moment to wait disk to spinup*/
> +               msleep(200);/*delay a moment to wait disk to spinup*/
>         pm8001_bytes_dmaed(pm8001_ha, phy_id);
>  }
>
> --
> 2.16.3
>



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