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From: Maxime Ripard <maxime.ripard@bootlin.com>
To: Icenowy Zheng <icenowy@aosc.io>
Cc: Rob Herring <robh+dt@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
	Giuseppe Cavallaro <peppe.cavallaro@st.com>,
	Corentin Labbe <clabbe.montjoie@gmail.com>,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com
Subject: Re: [PATCH 5/5] arm64: allwinner: a64: add SRAM controller device tree node
Date: Thu, 12 Apr 2018 16:58:06 +0200	[thread overview]
Message-ID: <20180412145806.hsvxomh6vousrhq5@flea> (raw)
In-Reply-To: <20180411141641.14675-6-icenowy@aosc.io>

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Hi,

On Wed, Apr 11, 2018 at 10:16:41PM +0800, Icenowy Zheng wrote:
> Allwinner A64 has a SRAM controller, and in the device tree currently
> we have a syscon node to enable EMAC driver to access the EMAC clock
> register. As SRAM controller driver can now export regmap for this
> register, replace the syscon node to the SRAM controller device node,
> and let EMAC driver to acquire its EMAC clock regmap.
> 
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 23 +++++++++++++++++++----
>  1 file changed, 19 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 1b2ef28c42bd..1c37659d9d41 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -168,10 +168,25 @@
>  		#size-cells = <1>;
>  		ranges;
>  
> -		syscon: syscon@1c00000 {
> -			compatible = "allwinner,sun50i-a64-system-controller",
> -				"syscon";
> +		sram_controller: sram-controller@1c00000 {
> +			compatible = "allwinner,sun50i-a64-sram-controller";
>  			reg = <0x01c00000 0x1000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges;
> +
> +			sram_c: sram@18000 {
> +				compatible = "mmio-sram";
> +				reg = <0x00018000 0x28000>;
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				ranges = <0 0x00018000 0x28000>;
> +
> +				de2_sram: sram-section@0 {
> +					compatible = "allwinner,sun50i-a64-sram-c";
> +					reg = <0x0000 0x28000>;
> +				};
> +			};

That doesn't look related at all to what's being discussed here, so
you'd rather add it as part of your DE2-enablement serie (or amend
your commit log to say why this is important to do it in this patch).

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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      reply	other threads:[~2018-04-12 14:58 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-11 14:16 [PATCH 0/5] Add support in dwmac-sun8i for accessing EMAC clock Icenowy Zheng
2018-04-11 14:16 ` [PATCH 1/5] dt-bindings: allow dwmac-sun8i to use other devices' exported regmap Icenowy Zheng
2018-04-11 14:36   ` [linux-sunxi] " Brüns, Stefan
2018-04-16 18:47   ` Rob Herring
2018-04-16 23:17     ` Icenowy Zheng
2018-04-28 13:42       ` [linux-sunxi] " Chen-Yu Tsai
2018-04-11 14:16 ` [PATCH 2/5] net: stmmac: dwmac-sun8i: Use regmap_field for syscon register access Icenowy Zheng
2018-04-11 14:16 ` [PATCH 3/5] net: stmmac: dwmac-sun8i: Allow getting syscon regmap from device Icenowy Zheng
2018-04-12 14:56   ` Maxime Ripard
2018-04-12 15:11     ` Icenowy Zheng
2018-04-12 15:23       ` [linux-sunxi] " Chen-Yu Tsai
2018-04-16 14:31         ` Maxime Ripard
2018-04-16 14:34           ` Icenowy Zheng
2018-04-16 14:51           ` Chen-Yu Tsai
2018-04-17 11:52             ` Maxime Ripard
2018-04-17 11:59               ` Chen-Yu Tsai
2018-04-17 12:06                 ` Icenowy Zheng
2018-04-13  6:03   ` [RFC PATCH] net: stmmac: dwmac-sun8i: single_reg_field can be static kbuild test robot
2018-04-13  6:03   ` [PATCH 3/5] net: stmmac: dwmac-sun8i: Allow getting syscon regmap from device kbuild test robot
2018-04-11 14:16 ` [PATCH 4/5] drivers: soc: sunxi: export a regmap for EMAC clock reg on A64 Icenowy Zheng
2018-04-11 14:16 ` [PATCH 5/5] arm64: allwinner: a64: add SRAM controller device tree node Icenowy Zheng
2018-04-12 14:58   ` Maxime Ripard [this message]

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