From: Rob Herring <robh@kernel.org>
To: Xinwei Kong <kong.kongxinwei@hisilicon.com>,
airlied@linux.ie, corbet@lwn.net, catalin.marinas@arm.com,
will.deacon@arm.com
Cc: dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linuxarm@huawei.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
xinliang.liu@linaro.org, andy.green@linaro.org,
qijiwen@hisilicon.com, gongyu@hisilicon.com,
haojian.zhuang@linaro.org, liguozhu@hisilicon.com,
xuwei5@hisilicon.com, yinshengbao@hisilicon.com,
yanhaifeng@hisilicon.com, ml.yang@hisilicon.com,
yimin@huawei.com, w.f@huawei.com, puck.chen@hisilicon.com,
bintian.wang@huawei.com, benjamin.gaignard@linaro.org,
xuyiping@hisilicon.com, james.yanglong@hisilicon.com,
fangdechun@hisilicon.com
Subject: Re: [PATCH RFC 1/8] dt-bindings: Document the hi6220 bindings for DRM driver
Date: Tue, 15 Sep 2015 13:11:32 -0500 [thread overview]
Message-ID: <55F85F54.1020807@kernel.org> (raw)
In-Reply-To: <1442309834-21420-2-git-send-email-kong.kongxinwei@hisilicon.com>
On 09/15/2015 04:37 AM, Xinwei Kong wrote:
> This adds documentation of device tree bindings for the
> Graphics Processing Unit of hi6220 SOC.
>
> Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
> Signed-off-by: Xinwei Kong <kong.kongxinwei@hisilicon.com>
> Signed-off-by: Andy Green <andy.green@linaro.org>
> Signed-off-by: Jiwen Qi <qijiwen@hisilicon.com>
> Signed-off-by: Yu Gong <gongyu@hisilicon.com>
> ---
> .../devicetree/bindings/gpu/hisilicon,hi6220.txt | 69 ++++++++++++++++++++++
> 1 file changed, 69 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/gpu/hisilicon,hi6220.txt
>
> diff --git a/Documentation/devicetree/bindings/gpu/hisilicon,hi6220.txt b/Documentation/devicetree/bindings/gpu/hisilicon,hi6220.txt
> new file mode 100644
> index 0000000..173ac63
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/hisilicon,hi6220.txt
> @@ -0,0 +1,69 @@
> + * Hisilicon hi6220 Graphics Processing Unit for HiKey board
> +
> + ** display-subsystem: Master device for binding DRM sub-components
DRM is a Linuxism that doesn't belong in the binding.
> + This master device is parent node and it will be responsible to bind all
> + sub-components devices node.
Are these nodes a single block in the h/w? If not, you should describe
the connection of sub-nodes with of-graph instead.
> + - Required properties :
> + - compatible: "hisilicon,display-subsystem".
> + - #address-cells, #size-cells: Must be present if the device has sub-nodes.
> + - ranges: to allow probing of subdevices.
> + - dma-coherent: Present if dma operations are coherent.
> +
> + ** ade: Graphic overlay, Graphic post-processing, display timing control.
> + This device is child node of display-subsystem
> + - Required properties :
> + - compatible: "hisilicon,hi6220-ade".
> + - reg: physical base address of the ADE register and length of memory
> + region.
> + - reg-names: Should contain the reg names "ade_base" and "media_base".
> + - interrupt: The interrupt number to the cpu. Defines the interrupt
> + by ADE.
> + - clocks: The clocks needed by the ADE module.
> + - clock-names: the name of the clocks.
> +
> + ** dsi: support mipi dsi interface
> + This device is child node of display-subsystem
> + - Required properties :
> + - compatible: "hisilicon,hi6220-dsi".
> + - reg: physical base address of the DSI register and length of memory
> + region.
> + - clocks: The clocks needed by the DSI module.
> + - clock-names: the name of the clocks.
> + - encoder-slave: phandles to a 'encoder-slave' subnode which DSI connect
> + ADV7533 in order to support hdmi display.
What the ADV7533 binding looks like is still being discussed.
"encoder-slave" is certainly DRM specific and not how it should be done.
Most likely, this needs to use the of-graph ports.
Also, the ADV7533 connection is specific to HiKey. This binding should
just generically describe how any bridge or panel is connected.
Rob
next prev parent reply other threads:[~2015-09-15 18:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-15 9:37 [PATCH RFC 0/8] Add New DRM Driver for Hisilicon's Hi6220 SoC Xinwei Kong
2015-09-15 9:37 ` [PATCH RFC 1/8] dt-bindings: Document the hi6220 bindings for DRM driver Xinwei Kong
2015-09-15 18:11 ` Rob Herring [this message]
2015-09-16 8:34 ` Xinwei Kong
2015-09-16 9:10 ` Archit Taneja
2015-09-17 12:14 ` Xinwei Kong
2015-09-15 9:37 ` [PATCH RFC 2/8] drm: hisilicon: Add new DRM driver for hisilicon Soc Xinwei Kong
2015-09-17 11:13 ` Archit Taneja
2015-09-15 9:37 ` [PATCH RFC 3/8] drm: hisilicon: Add the link to DRM/KMS interface Xinwei Kong
2015-09-15 9:37 ` [PATCH RFC 4/8] drm: hisilicon: fill interface function of plane\crtc part Xinwei Kong
2015-09-15 9:37 ` [PATCH RFC 5/8] drm: hisilicon: fill interface function of encoder\connector part Xinwei Kong
2015-09-17 11:39 ` Archit Taneja
2015-09-15 9:37 ` [PATCH RFC 6/8] drm: hisilicon: Add support for fbdev Xinwei Kong
2015-09-15 18:25 ` Rob Herring
2015-09-16 3:32 ` Xinwei Kong
[not found] ` <CAGd==05f+XVg4ZSDihftjB2wcOGkAou=AxXYXB+1=ckM2J6EBQ@mail.gmail.com>
2015-09-17 11:52 ` Rob Clark
2015-09-15 9:37 ` [PATCH RFC 7/8] drm: hisilicon: Add support for vblank Xinwei Kong
2015-09-15 9:37 ` [PATCH RFC 8/8] dts: hisilicon: Add drm driver device dts config for HiKey board Xinwei Kong
2015-09-16 15:23 ` [PATCH RFC 0/8] Add New DRM Driver for Hisilicon's Hi6220 SoC Daniel Stone
2015-09-16 20:16 ` Daniel Vetter
[not found] ` <CAGd==05NKAjH=hD=bqKNh052ff=osJ4WxwOdDb3xoC1Mgy6Jdg@mail.gmail.com>
2015-09-22 8:49 ` Daniel Vetter
2015-09-18 10:32 ` Xinwei Kong
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