linux-kernel - Re: [linux-sunxi] [PATCH 3/4] ARM: sun7i: Convert to CCU

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Message-ID: <bca96944-bd58-5011-5eb9-01c4a1440fe2@elopez.com.ar>
Date:   Tue, 28 Feb 2017 14:01:48 -0300
From:   Emilio López <emilio@...pez.com.ar>
To:     plaes@...es.org
Cc:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Russell King <linux@...linux.org.uk>,
        Icenowy Zheng <icenowy@...c.xyz>, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [linux-sunxi] [PATCH 3/4] ARM: sun7i: Convert to CCU

Hi,

I spotted a couple of things here on a quick look, see below

El 27/02/17 a las 18:09, Priit Laes escribió:
> Convert sun7i-a20.dtsi to new CCU driver.
> 
> Signed-off-by: Priit Laes <plaes@...es.org>
> ---
>  arch/arm/boot/dts/sun7i-a20.dtsi | 719 +++++----------------------------------
>  1 file changed, 86 insertions(+), 633 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
> index 04c9977..6f80cb8 100644
> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
> @@ -47,7 +47,8 @@
>  #include <dt-bindings/interrupt-controller/arm-gic.h>
>  #include <dt-bindings/thermal/thermal.h>
>  
> -#include <dt-bindings/clock/sun4i-a10-pll2.h>
> +#include <dt-bindings/clock/sun7i-ccu.h>
> +#include <dt-bindings/reset/sun7i-ccu.h>
>  #include <dt-bindings/dma/sun4i-a10.h>
>  #include <dt-bindings/pinctrl/sun4i-a10.h>
>  
> @@ -67,19 +68,19 @@
>  			compatible = "allwinner,simple-framebuffer",
>  				     "simple-framebuffer";
>  			allwinner,pipeline = "de_be0-lcd0-hdmi";
> -			clocks = <&ahb_gates 36>, <&ahb_gates 43>,
> -				 <&ahb_gates 44>, <&de_be0_clk>,
> -				 <&tcon0_ch1_clk>, <&dram_gates 26>;
> +			clocks = <&ccu CLK_AHB_LCD0>, <&ccu CLK_AHB_HDMI1>,
> +				 <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_DE_BE0>,
> +				 <&ccu CLK_TCON0_CH1>, <&ccu CLK_DRAM_DE_BE0>;
>  			status = "disabled";
>  		};
>  
> -		framebuffer@1 {
> +		framebuffer@0 {

This looks like an unrelated change

> @@ -184,21 +185,11 @@
>  
>  		osc24M: clk@...20050 {
>  			#clock-cells = <0>;
> -			compatible = "allwinner,sun4i-a10-osc-clk";
> -			reg = <0x01c20050 0x4>;
> +			compatible = "fixed-clock";
>  			clock-frequency = <24000000>;
>  			clock-output-names = "osc24M";
>  		};

allwinner,sun4i-a10-osc-clk implements a gate apart from a fixed clock,
is the feature loss intended?

Cheers,
Emilio