From: Rob Herring <robh@kernel.org>
To: Icenowy Zheng <icenowy@aosc.io>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>,
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 1/5] dt-bindings: allow dwmac-sun8i to use other devices' exported regmap
Date: Mon, 16 Apr 2018 13:47:45 -0500 [thread overview]
Message-ID: <20180416184745.tqxyvojtcbage4fu@rob-hp-laptop> (raw)
In-Reply-To: <20180411141641.14675-2-icenowy@aosc.io>
On Wed, Apr 11, 2018 at 10:16:37PM +0800, Icenowy Zheng wrote:
> On some Allwinner SoCs the EMAC clock register needed by dwmac-sun8i is
> in another device's memory space. In this situation dwmac-sun8i can use
> a regmap exported by the other device with only the EMAC clock register.
If this is a clock, then why not use the clock binding?
>
> Document this situation in the dwmac-sun8i device tree binding
> documentation.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> ---
> Documentation/devicetree/bindings/net/dwmac-sun8i.txt | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
> index 3d6d5fa0c4d5..0c5f63a80617 100644
> --- a/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
> +++ b/Documentation/devicetree/bindings/net/dwmac-sun8i.txt
> @@ -20,8 +20,9 @@ Required properties:
> - phy-handle: See ethernet.txt
> - #address-cells: shall be 1
> - #size-cells: shall be 0
> -- syscon: A phandle to the syscon of the SoC with one of the following
> - compatible string:
> +- syscon: A phandle to a device which exports the EMAC clock register as a
> + regmap or to the syscon of the SoC with one of the following compatible
> + string:
> - allwinner,sun8i-h3-system-controller
> - allwinner,sun8i-v3s-system-controller
> - allwinner,sun50i-a64-system-controller
> --
> 2.15.1
>
> --
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next prev parent reply other threads:[~2018-04-16 18:47 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 [this message]
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 ` kbuild test robot
2018-04-13 6:03 ` [RFC PATCH] net: stmmac: dwmac-sun8i: single_reg_field can be static 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
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