linux-kernel - Re: [PATCH v3 2/5] ARM: dts: rockchip: add ARM Mali GPU node for rk3288

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Date:   Wed, 19 Apr 2017 10:59:21 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Guillaume Tucker <guillaume.tucker@...labora.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Sjoerd Simons <sjoerd.simons@...labora.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        John Reitan <john.reitan@....com>,
        Wookey <wookey@...kware.org>, devicetree@...r.kernel.org,
        linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/5] ARM: dts: rockchip: add ARM Mali GPU node for rk3288

Am Mittwoch, 19. April 2017, 09:06:18 CEST schrieb Guillaume Tucker:
> Add Mali GPU device tree node for the rk3288 SoC, with devfreq
> opp table.
> 
> Tested-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
> Signed-off-by: Guillaume Tucker <guillaume.tucker@...labora.com>
> ---
>  arch/arm/boot/dts/rk3288.dtsi | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
> index df8a0dbe9d91..187eed528f83 100644
> --- a/arch/arm/boot/dts/rk3288.dtsi
> +++ b/arch/arm/boot/dts/rk3288.dtsi
> @@ -43,6 +43,7 @@
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/pinctrl/rockchip.h>
>  #include <dt-bindings/clock/rk3288-cru.h>
> +#include <dt-bindings/power/rk3288-power.h>
>  #include <dt-bindings/thermal/thermal.h>
>  #include <dt-bindings/power/rk3288-power.h>
>  #include <dt-bindings/soc/rockchip,boot-mode.h>
> @@ -227,6 +228,27 @@
>  		ports = <&vopl_out>, <&vopb_out>;
>  	};
>  
> +	gpu: mali@...30000 {

please sort nodes by address. ffa30000 should be placed below hdmi@...80000
and above qos@...a0000 .


> +		compatible = "arm,mali-t760", "arm,mali-midgard";

As indicated before I don't trust that a generic binding will work for
everything, so I would feel safer if we had a "rockchip,rk3288-mali" in
front for future purposes, making it a

		compatible = "rockchip,rk3288-mali", "arm,mali-t760", "arm,mali-midgard";


> +		reg = <0xffa30000 0x10000>;
> +		interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "job", "mmu", "gpu";
> +		clocks = <&cru ACLK_GPU>;
> +		operating-points = <
> +			/* KHz uV */
> +			100000 950000
> +			200000 950000
> +			300000 1000000
> +			400000 1100000
> +			500000 1200000
> +			600000 1250000
> +		>;

Wasn't there a wish for opp-v2 in a previous version?


Thanks
Heiko

> +		power-domains = <&power RK3288_PD_GPU>;
> +		status = "disabled";
> +	};
> +
>  	sdmmc: dwmmc@...c0000 {
>  		compatible = "rockchip,rk3288-dw-mshc";
>  		max-frequency = <150000000>;
>