linux-kernel - Re: [PATCH v5 01/10] arm64: allwinner: a64: enable RSB on A64

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Date:   Fri, 28 Apr 2017 02:14:58 +0800
From:   icenowy@...c.io
To:     Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...glegroups.com,
        linux-kernel-owner@...r.kernel.org
Subject: Re: [PATCH v5 01/10] arm64: allwinner: a64: enable RSB on A64

在 2017-04-27 21:28，Maxime Ripard 写道：
> On Wed, Apr 26, 2017 at 11:20:14PM +0800, Icenowy Zheng wrote:
>> Allwinner A64 have a RSB controller like the one on A23/A33 SoCs.
>> 
>> Add it and its pinmux.
>> 
>> Signed-off-by: Icenowy Zheng <icenowy@...c.io>
>> Acked-by: Chen-Yu Tsai <wens@...e.org>
>> ---
>> Changes in v2:
>> - Removed bonus properties in pio node.
>> - Added Chen-Yu's ACK.
>> 
>>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 19 
>> +++++++++++++++++++
>>  1 file changed, 19 insertions(+)
>> 
>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi 
>> b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
>> index c7f669f5884f..05ec9fc5e81f 100644
>> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
>> @@ -422,6 +422,25 @@
>>  			#gpio-cells = <3>;
>>  			interrupt-controller;
>>  			#interrupt-cells = <3>;
>> +
>> +			r_rsb_pins: rsb@0 {
>> +				pins = "PL0", "PL1";
>> +				function = "s_rsb";
>> +			};
>> +		};
>> +
>> +		r_rsb: rsb@...3400 {
>> +			compatible = "allwinner,sun8i-a23-rsb";
>> +			reg = <0x01f03400 0x400>;
>> +			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
>> +			clocks = <&r_ccu 6>;
> 
> Please use the defines here..

Linux-4.12 doesn't yet enter rc1, and the defines are still not in
Linus's tree.

Please note that I have already mentioned that this patch is necessary
to be merged into 4.12, otherwise poweroff won't work properly at 4.12 .

So I think it shouldn't still use defines.

I will fix here after 4.12-rc1 is out, along with other r_ccu
usages.

> 
>> +			clock-frequency = <3000000>;
>> +			resets = <&r_ccu 2>;
> 
> And here.
> 
> Thanks!
> Maxime