Re: [PATCH v3 1/6] reset: imx7: Add the iMX8MP PCIe PHY PERST support

From: Lorenzo Pieralisi
Date: Mon Aug 29 2022 - 04:10:55 EST


On Thu, Aug 18, 2022 at 10:53:24AM +0000, Hongxing Zhu wrote:
> > -----Original Message-----
> > From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> > Sent: 2022年8月18日 16:51
> > To: Hongxing Zhu <hongxing.zhu@xxxxxxx>; l.stach@xxxxxxxxxxxxxx;
> > bhelgaas@xxxxxxxxxx; lorenzo.pieralisi@xxxxxxx; robh@xxxxxxxxxx;
> > shawnguo@xxxxxxxxxx; vkoul@xxxxxxxxxx; alexander.stein@xxxxxxxxxxxxxxx;
> > marex@xxxxxxx
> > Cc: linux-phy@xxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx;
> > linux-pci@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx;
> > linux-kernel@xxxxxxxxxxxxxxx; kernel@xxxxxxxxxxxxxx; dl-linux-imx
> > <linux-imx@xxxxxxx>
> > Subject: Re: [PATCH v3 1/6] reset: imx7: Add the iMX8MP PCIe PHY PERST
> > support
> >
> > Hi Richard,
> >
> > On Do, 2022-08-18 at 15:02 +0800, Richard Zhu wrote:
> > > On i.MX7/iMX8MM/iMX8MQ, the initialized default value of PERST
> > > bit(BIT3) of SRC_PCIEPHY_RCR is 1b'1.
> > > But i.MX8MP has one inversed default value 1b'0 of PERST bit.
> > >
> > > And the PERST bit should be kept 1b'1 after power and clocks are stable.
> > > So add the i.MX8MP PCIe PHY PERST support here.
> >
> > the description is good now. It would be nice if this could also be mentioned in
> > the Reference Manual.
> >
> > Please replace "add" with "fix" in the subject, as I requested earlier:
> > "reset: imx7: Fix i.MX8MP PCIe PHY PERST support".
> >
> > And add a fixes line:
> >
> > Fixes: e08672c03981 ("reset: imx7: Add support for i.MX8MP SoC")
> >
> > With those two changes,
> > Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> >
> Hi Philipp:
> Okay, would be changed in next version.

AFAICS there is still a pending comment on patch (2) but I will
mark this as "Changes requested" and wait for the next version.

Lorenzo

> Thanks for your review.
>
> Best Regards
> Richard Zhu
>
> > regards
> > Philipp
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