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Date: Fri, 1 Aug 2014 13:33:23 -0700 From: Doug Anderson <dianders@...omium.org> To: Andreas Färber <afaerber@...e.de> Cc: linux-samsung-soc <linux-samsung-soc@...r.kernel.org>, "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, Stephan van Schaik <stephan@...khronix.com>, Vincent Palatin <vpalatin@...omium.org>, Javier Martinez Canillas <javier.martinez@...labora.co.uk>, Tomasz Figa <t.figa@...sung.com>, Ben Dooks <ben-linux@...ff.org>, Kukjin Kim <kgene.kim@...sung.com>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Kumar Gala <galak@...eaurora.org>, Russell King <linux@....linux.org.uk>, open list <linux-kernel@...r.kernel.org> Subject: Re: [PATCH v5 05/10] ARM: dts: Move dp_hpd from exynos5250 into smdk5250 and snow Andreas, On Thu, Jul 31, 2014 at 9:54 PM, Andreas Färber <afaerber@...e.de> wrote: > Spring uses a different GPIO, so this is not a generic SoC piece. > > Suggested-by: Tomasz Figa <t.figa@...sung.com> > Signed-off-by: Andreas Färber <afaerber@...e.de> > --- > v5: New (Tomasz Figa) > Frees dp_hpd for Spring. > > arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 7 ------- > arch/arm/boot/dts/exynos5250-smdk5250.dts | 9 +++++++++ > arch/arm/boot/dts/exynos5250-snow.dts | 7 +++++++ > 3 files changed, 16 insertions(+), 7 deletions(-) > > diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi > index 886cfca044ac..ed0e5230514b 100644 > --- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi > +++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi > @@ -581,13 +581,6 @@ > samsung,pin-pud = <0>; > samsung,pin-drv = <0>; > }; > - > - dp_hpd: dp_hpd { > - samsung,pins = "gpx0-7"; > - samsung,pin-function = <3>; > - samsung,pin-pud = <0>; > - samsung,pin-drv = <0>; > - }; > }; > > pinctrl@...00000 { > diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts > index aaa055ac0fe3..5d30fe1dcda4 100644 > --- a/arch/arm/boot/dts/exynos5250-smdk5250.dts > +++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts > @@ -414,3 +414,12 @@ > }; > }; > }; > + > +&pinctrl_0 { > + dp_hpd: dp_hpd { > + samsung,pins = "gpx0-7"; > + samsung,pin-function = <3>; > + samsung,pin-pud = <0>; > + samsung,pin-drv = <0>; > + }; > +}; > diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts > index c4b0c73c736d..a9a2f2743794 100644 > --- a/arch/arm/boot/dts/exynos5250-snow.dts > +++ b/arch/arm/boot/dts/exynos5250-snow.dts > @@ -547,6 +547,13 @@ > }; > > &pinctrl_0 { > + dp_hpd: dp_hpd { > + samsung,pins = "gpx0-7"; > + samsung,pin-function = <3>; > + samsung,pin-pud = <0>; > + samsung,pin-drv = <0>; > + }; > + NAK. dp_hpd is a generic SoC piece. Pin function 0 and 1 are GPIOs. Pin function 3 is special function. This pin _is_ the hot plug detect pin for display port. When it's set as special function 3 it goes straight into the hot plug logic of the display port controller. Spring may have had its reasons to detect hot plug events on a GPIO instead of using this pin, but that doesn't make this pin any less the "hot plug pin". -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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