linux-kernel - Re: [PATCH v5 03/10] ARM: dts: aspeed-g6: Add SGPIO node.

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Date:   Wed, 9 Jun 2021 09:51:49 +0800
From:   Steven Lee <steven_lee@...eedtech.com>
To:     Andrew Jeffery <andrew@...id.au>
CC:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Joel Stanley <joel@....id.au>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/ASPEED MACHINE SUPPORT" 
        <linux-aspeed@...ts.ozlabs.org>,
        open list <linux-kernel@...r.kernel.org>,
        Hongwei Zhang <Hongweiz@....com>,
        Ryan Chen <ryan_chen@...eedtech.com>,
        Billy Tsai <billy_tsai@...eedtech.com>
Subject: Re: [PATCH v5 03/10] ARM: dts: aspeed-g6: Add SGPIO node.

The 06/09/2021 08:43, Andrew Jeffery wrote:
> 
> 
> On Tue, 8 Jun 2021, at 19:55, Steven Lee wrote:
> > AST2600 supports 2 SGPIO master interfaces one with 128 pins another one
> > with 80 pins.
> > 
> > Signed-off-by: Steven Lee <steven_lee@...eedtech.com>
> > ---
> >  arch/arm/boot/dts/aspeed-g6.dtsi | 28 ++++++++++++++++++++++++++++
> >  1 file changed, 28 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
> > index f96607b7b4e2..c55baaf94314 100644
> > --- a/arch/arm/boot/dts/aspeed-g6.dtsi
> > +++ b/arch/arm/boot/dts/aspeed-g6.dtsi
> > @@ -377,6 +377,34 @@
> >  				#interrupt-cells = <2>;
> >  			};
> >  
> > +			sgpiom0: sgpiom@...80500 {
> > +				#gpio-cells = <2>;
> > +				gpio-controller;
> > +				compatible = "aspeed,ast2600-sgpiom-128";
> > +				reg = <0x1e780500 0x100>;
> > +				interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
> > +				clocks = <&syscon ASPEED_CLK_APB2>;
> 
> The example in the binding document used ASPEED_CLK_APB. Which is correct? I assume ASPEED_CLK_APB2?
> 

The example in the binding document is for aspeed-g5.
aspeed-g5 and aspeed-g6 use different clocks.
Should I add a new patch for adding an example for aspeed-g6?

> > +				interrupt-controller;
> > +				bus-frequency = <12000000>;
> > +				pinctrl-names = "default";
> > +				pinctrl-0 = <&pinctrl_sgpm1_default>;
> > +				status = "disabled";
> > +			};
> > +
> > +			sgpiom1: sgpiom@...80600 {
> > +				#gpio-cells = <2>;
> > +				gpio-controller;
> > +				compatible = "aspeed,ast2600-sgpiom-80";
> > +				reg = <0x1e780600 0x100>;
> > +				interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
> > +				clocks = <&syscon ASPEED_CLK_APB2>;
> > +				interrupt-controller;
> > +				bus-frequency = <12000000>;
> > +				pinctrl-names = "default";
> > +				pinctrl-0 = <&pinctrl_sgpm2_default>;
> > +				status = "disabled";
> > +			};
> > +
> >  			gpio1: gpio@...80800 {
> >  				#gpio-cells = <2>;
> >  				gpio-controller;
> > -- 
> > 2.17.1
> > 
> > 
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@...ts.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
> > 

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