linux-kernel - RE: [PATCH v1 2/3] dt-bindings: phy: phy-imx8-pcie: Add binding for i.MX8Q HSIO SerDes PHY

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Date: Mon, 1 Apr 2024 02:12:43 +0000
From: Hongxing Zhu <hongxing.zhu@....com>
To: Frank Li <frank.li@....com>
CC: "vkoul@...nel.org" <vkoul@...nel.org>, "kishon@...nel.org"
	<kishon@...nel.org>, "robh+dt@...nel.org" <robh+dt@...nel.org>,
	"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
	"conor+dt@...nel.org" <conor+dt@...nel.org>, "linux-phy@...ts.infradead.org"
	<linux-phy@...ts.infradead.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "kernel@...gutronix.de"
	<kernel@...gutronix.de>, dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v1 2/3] dt-bindings: phy: phy-imx8-pcie: Add binding for
 i.MX8Q HSIO SerDes PHY

> -----Original Message-----
> From: Frank Li <frank.li@....com>
> Sent: 2024年3月29日 22:21
> To: Hongxing Zhu <hongxing.zhu@....com>
> Cc: vkoul@...nel.org; kishon@...nel.org; robh+dt@...nel.org;
> krzysztof.kozlowski+dt@...aro.org; conor+dt@...nel.org;
> linux-phy@...ts.infradead.org; devicetree@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> kernel@...gutronix.de; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH v1 2/3] dt-bindings: phy: phy-imx8-pcie: Add binding for
> i.MX8Q HSIO SerDes PHY
> 
> On Fri, Mar 29, 2024 at 04:09:49PM +0800, Richard Zhu wrote:
> > Add binding for controller ID and HSIO configuration setting of the
> > i.MX8Q HSIO SerDes PHY.
> >
> > Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> > ---
> >  include/dt-bindings/phy/phy-imx8-pcie.h | 26
> > +++++++++++++++++++++++++
> >  1 file changed, 26 insertions(+)
> 
> This one should be first patch. (1/3).
> 
> After fix small improve
> 
> Reviewed-by: Frank Li <Frank.Li@....com>
> 
Thanks for your review.
> >
> > diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h
> > b/include/dt-bindings/phy/phy-imx8-pcie.h
> > index 8bbe2d6538d8..5cd5580879fa 100644
> > --- a/include/dt-bindings/phy/phy-imx8-pcie.h
> > +++ b/include/dt-bindings/phy/phy-imx8-pcie.h
> > @@ -11,4 +11,30 @@
> >  #define IMX8_PCIE_REFCLK_PAD_INPUT	1
> >  #define IMX8_PCIE_REFCLK_PAD_OUTPUT	2
> >
> > +/*
> > + * i.MX8QM HSIO subsystem has three lane PHYs and three controllers:
> > + * PCIEA(2 lanes capapble PCIe controller), PCIEB (only support one
> > + * lane) and SATA.
> 
> Suggest add empty line between segment.
> 
Okay, would be added later. Thanks.
Best Regards
Richard Zhu
> > + * In the different use cases. PCIEA can be binded to PHY lane0,
> > +lane1
> > + * or Lane0 and lane1. PCIEB can be binded to lane1 or lane2 PHY.
> > +SATA
> > + * can only be binded to last lane2 PHY.
> > + * Define i.MX8Q HSIO controller ID here to specify the controller
> > + * binded to the PHY.
> > + * Meanwhile, i.MX8QXP HSIO subsystem has one lane PHY and PCIEB(only
> > + * support one lane) controller.
> > + */
> > +#define IMX8Q_HSIO_PCIEA_ID	0
> > +#define IMX8Q_HSIO_PCIEB_ID	1
> > +#define IMX8Q_HSIO_SATA_ID	2
> > +
> > +/*
> > + * On i.MX8QM, PCIEA is mandatory required if the HSIO is enabled.
> > + * Define configurations beside PCIEA is enabled.
> > + * On i.MX8QXP, HSIO module only has PCIEB and one lane PHY.
> > + * The "IMX8Q_HSIO_CFG_PCIEB" can be used on i.MX8QXP platforms.
> > + */
> > +#define IMX8Q_HSIO_CFG_SATA		1
> > +#define IMX8Q_HSIO_CFG_PCIEB		2
> > +#define IMX8Q_HSIO_CFG_PCIEBSATA	3
> > +
> >  #endif /* _DT_BINDINGS_IMX8_PCIE_H */
> > --
> > 2.37.1
> >