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From: Rob Herring <robh@kernel.org>
To: Andrew Jeffery <andrew@aj.id.au>
Cc: Lee Jones <lee.jones@linaro.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Joel Stanley <joel@jms.id.au>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH v2 2/6] mfd: dt: Add bindings for the Aspeed SoC Display Controller (GFX)
Date: Wed, 9 Nov 2016 12:26:30 -0600	[thread overview]
Message-ID: <20161109182630.tg3puvwurgx6iinw@rob-hp-laptop> (raw)
In-Reply-To: <1478097481-14895-3-git-send-email-andrew@aj.id.au>

On Thu, Nov 03, 2016 at 01:07:57AM +1030, Andrew Jeffery wrote:
> The Aspeed SoC Display Controller is presented as a syscon device to
> arbitrate access by display and pinmux drivers. Video pinmux
> configuration on fifth generation SoCs depends on bits in both the
> System Control Unit and the Display Controller.
> 
> Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
> ---
>  Documentation/devicetree/bindings/mfd/aspeed-gfx.txt | 17 +++++++++++++++++

The register space can't be split to 2 nodes? 

>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/aspeed-gfx.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/aspeed-gfx.txt b/Documentation/devicetree/bindings/mfd/aspeed-gfx.txt
> new file mode 100644
> index 000000000000..aea5370efd97
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/aspeed-gfx.txt
> @@ -0,0 +1,17 @@
> +* Device tree bindings for Aspeed SoC Display Controller (GFX)
> +
> +The Aspeed SoC Display Controller primarily does as its name suggests, but also
> +participates in pinmux requests on the g5 SoCs. It is therefore considered a
> +syscon device.
> +
> +Required properties:
> +- compatible:		"aspeed,ast2500-gfx", "syscon"

I think perhaps we should drop the syscon here and the driver should 
just register as a syscon.

Rob

  reply	other threads:[~2016-11-09 18:26 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-02 14:37 [PATCH v2 0/6] pinctrl: aspeed: Fixes for g5, implement remaining pins Andrew Jeffery
2016-11-02 14:37 ` [PATCH v2 1/6] pinctrl-aspeed-g5: Never set SCU90[6] Andrew Jeffery
2016-11-03 22:59   ` Joel Stanley
2016-11-07  9:34     ` Linus Walleij
2016-11-07 22:42       ` Andrew Jeffery
2016-11-07  9:32   ` Linus Walleij
2016-11-02 14:37 ` [PATCH v2 2/6] mfd: dt: Add bindings for the Aspeed SoC Display Controller (GFX) Andrew Jeffery
2016-11-09 18:26   ` Rob Herring [this message]
2016-11-10  3:19     ` Joel Stanley
2016-11-10 17:40       ` Rob Herring
2016-11-18 18:47   ` Lee Jones
2016-11-02 14:37 ` [PATCH v2 3/6] mfd: dt: Add bindings for the Aspeed LPC Host Controller (LPCHC) Andrew Jeffery
2016-11-03 23:06   ` Joel Stanley
2016-11-04  3:45     ` Andrew Jeffery
2016-11-18 18:44   ` Lee Jones
2016-11-18 18:45     ` Lee Jones
2016-11-22  3:25       ` Andrew Jeffery
2016-11-02 14:37 ` [PATCH v2 4/6] pinctrl: aspeed: Read and write bits in LPCHC and GFX controllers Andrew Jeffery
2016-11-03 23:24   ` Joel Stanley
2016-11-04  3:59     ` Andrew Jeffery
2016-11-09 18:26   ` Rob Herring
2016-11-09 23:50     ` Andrew Jeffery
2016-11-02 14:38 ` [PATCH v2 5/6] pinctrl: aspeed-g4: Add mux configuration for all pins Andrew Jeffery
2016-11-02 14:38 ` [PATCH v2 6/6] pinctrl: aspeed-g5: " Andrew Jeffery

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