From mboxrd@z Thu Jan 1 00:00:00 1970 From: Richard Leitner Subject: Re: [PATCH net-next v5 1/4] phylib: Add device reset delay support Date: Mon, 18 Dec 2017 08:30:45 +0100 Message-ID: <1b230e6b-8e8c-28a4-7524-6ce60aa71591@skidata.com> References: <20171211121700.10200-1-dev@g0hl1n.net> <20171211121700.10200-2-dev@g0hl1n.net> <20171215221752.42sz53izxeebkfuq@rob-hp-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20171215221752.42sz53izxeebkfuq@rob-hp-laptop> Content-Language: en-US Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Rob Herring , Richard Leitner Cc: mark.rutland-5wv7dgnIgG8@public.gmane.org, fugang.duan-3arQi8VN3Tc@public.gmane.org, andrew-g2DYL2Zd6BY@public.gmane.org, f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org, geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org, sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org, baruch-NswTu9S1W3P6gbPvEgmw2w@public.gmane.org, david.wu-TNX95d0MmH7DzftRWevZcw@public.gmane.org, lukma-ynQEQJNshbs@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Rob, On 12/15/2017 11:17 PM, Rob Herring wrote: > On Mon, Dec 11, 2017 at 01:16:57PM +0100, Richard Leitner wrote: >> From: Richard Leitner >> >> Some PHYs need a minimum time after the reset gpio was asserted and/or >> deasserted. To ensure we meet these timing requirements add two new >> optional devicetree parameters for the phy: reset-delay-us and >> reset-post-delay-us. >> >> Signed-off-by: Richard Leitner >> Reviewed-by: Geert Uytterhoeven >> --- >> Documentation/devicetree/bindings/net/phy.txt | 10 ++++++++++ >> drivers/net/phy/mdio_device.c | 13 +++++++++++-- >> drivers/of/of_mdio.c | 4 ++++ >> include/linux/mdio.h | 2 ++ >> 4 files changed, 27 insertions(+), 2 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt >> index c05479f5ac7c..72860ce7f610 100644 >> --- a/Documentation/devicetree/bindings/net/phy.txt >> +++ b/Documentation/devicetree/bindings/net/phy.txt >> @@ -55,6 +55,12 @@ Optional Properties: >> >> - reset-gpios: The GPIO phandle and specifier for the PHY reset signal. >> >> +- reset-delay-us: Delay after the reset was asserted in microseconds. >> + If this property is missing the delay will be skipped. >> + >> +- reset-post-delay-us: Delay after the reset was deasserted in microseconds. >> + If this property is missing the delay will be skipped. > > I think these names could be clearer as to exactly what they mean. > Looking at existing properties with "reset-delay" there's a mixture of > definitions whether it is the assert time or the time after deassert. > > So I'd call these "reset-assert-us" and "reset-deassert-us". Ok, that would be fine with me, but are you sure that we should omit the "-delay" term completely? What would be the best approach to post this change (as the patchset was already merged to net-next)? A separate patch or a v6 of the complete patchset? > > Rob > regards;Richard.L -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html