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Re: [PATCH RFT 1/2] phylib: add device reset GPIO support

From Andrew Lunn <andrew@lunn.ch>
Newsgroups linux.kernel
Subject Re: [PATCH RFT 1/2] phylib: add device reset GPIO support
Date 2016-05-13 22:50 +0200
Message-ID <rysc3-2oB-11@gated-at.bofh.it> (permalink)
References <rlN4B-2Mf-3@gated-at.bofh.it> <rt2rV-3gl-23@gated-at.bofh.it> <ry3Qm-2Xu-7@gated-at.bofh.it> <ryhgC-qB-3@gated-at.bofh.it> <ryr6h-1tO-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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> >Another issue is that on some boards we have one reset line tied to
> >multiple PHYs.How do we prevent multiple resets being taking place when each of
> >the PHYs are registered?
> 
>    My patch just doesn't address this case -- it's about the
> individual resets only.

This actually needs to be addresses a layer above. What you have is a
bus reset, not a device reset. So the gpio line is associated to the
mdio bus, not a PHY. Either your MDIO driver needs to handle the gpio
line, or in __mdio_register(), before it starts looking at the
children.

	Andrew

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Thread

Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Uwe Kleine-König   <u.kleine-koenig@pengutronix.de> - 2016-05-12 20:50 +0200
  Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-12 23:40 +0200
    Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Andrew Lunn <andrew@lunn.ch> - 2016-05-13 06:10 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-13 23:20 +0200
    Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Uwe Kleine-König   <u.kleine-koenig@pengutronix.de> - 2016-05-13 09:10 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-13 23:50 +0200
    Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-13 21:20 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-16 04:10 +0200
  Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Roger Quadros <rogerq@ti.com> - 2016-05-13 11:10 +0200
    Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-13 21:40 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Andrew Lunn <andrew@lunn.ch> - 2016-05-13 22:50 +0200
        Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-13 23:00 +0200
          Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Andrew Lunn <andrew@lunn.ch> - 2016-05-14 01:50 +0200
            Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-14 21:40 +0200
              Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Andrew Lunn <andrew@lunn.ch> - 2016-05-14 22:00 +0200
                Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Andrew Lunn <andrew@lunn.ch> - 2016-05-16 04:10 +0200
                Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-19 15:50 +0200
                Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-05-16 04:10 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Roger Quadros <rogerq@ti.com> - 2016-05-16 11:00 +0200
  Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Linus Walleij <linus.walleij@linaro.org> - 2016-05-26 11:10 +0200
    Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Uwe Kleine-König   <u.kleine-koenig@pengutronix.de> - 2016-05-26 21:10 +0200
      Re: [PATCH RFT 1/2] phylib: add device reset GPIO support Linus Walleij <linus.walleij@linaro.org> - 2016-05-30 17:00 +0200

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