linux-kernel - Re: [PATCH v5 04/14] soc: mediatek: Refactor polling timeout and documentation

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Date:   Wed, 19 Jun 2019 17:11:56 +0800
From:   Weiyi Lu <weiyi.lu@...iatek.com>
To:     Nicolas Boichat <drinkcat@...omium.org>
CC:     Rob Herring <robh@...nel.org>,
        srv_heupstream <srv_heupstream@...iatek.com>,
        James Liao <jamesjj.liao@...iatek.com>,
        lkml <linux-kernel@...r.kernel.org>,
        Fan Chen <fan.chen@...iatek.com>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 04/14] soc: mediatek: Refactor polling timeout and
 documentation

On Tue, 2019-03-19 at 19:45 +0800, Nicolas Boichat wrote:
> On Tue, Mar 19, 2019 at 4:02 PM Weiyi Lu <weiyi.lu@...iatek.com> wrote:
> >
> > Use USEC_PER_SEC to indicate the polling timeout directly.
> > And add documentation of scp_domain_data.
> >
> > Signed-off-by: Weiyi Lu <weiyi.lu@...iatek.com>
> > ---
> >  drivers/soc/mediatek/mtk-scpsys.c | 14 +++++++++++++-
> >  1 file changed, 13 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
> > index 9f52f501178b..2855111b221a 100644
> > --- a/drivers/soc/mediatek/mtk-scpsys.c
> > +++ b/drivers/soc/mediatek/mtk-scpsys.c
> > @@ -21,7 +21,7 @@
> >  #include <dt-bindings/power/mt8173-power.h>
> >
> >  #define MTK_POLL_DELAY_US   10
> > -#define MTK_POLL_TIMEOUT    (jiffies_to_usecs(HZ))
> > +#define MTK_POLL_TIMEOUT    USEC_PER_SEC
> >
> >  #define MTK_SCPD_ACTIVE_WAKEUP         BIT(0)
> >  #define MTK_SCPD_FWAIT_SRAM            BIT(1)
> > @@ -108,6 +108,18 @@ static const char * const clk_names[] = {
> >
> >  #define MAX_CLKS       3
> >
> > +/**
> > + * struct scp_domain_data - scp domain data for power on/off flow
> > + * @name: The domain name.
> > + * @sta_mask: The mask for power on/off status bit.
> > + * @ctl_offs: The offset for main power control register.
> > + * @sram_pdn_bits: The mask for sram power control bits.
> > + * @sram_pdn_ack_bits: The mask for sram power control acked bits.
> > + * @bus_prot_mask: The mask for single step bus protection.
> > + * @clk_id: The basic clock needs to be enabled before enabling certain
> > + *          power domains.
> 
> I assume these are the clock*s* that *this* scp_domain requires?
> 
> So maybe just: "The basic clocks required by this power domain." ?
> 
Thanks for revision. I'll update in next version.
> > + * @caps: The flag for active wake-up action.
> > + */
> >  struct scp_domain_data {
> >         const char *name;
> >         u32 sta_mask;
> > --
> > 2.18.0
> >
> 
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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