Re: [PATCH v15 06/12] dt-bindings: add document for dw_hdmi

From: Andy Yan
Date: Wed Dec 03 2014 - 04:43:38 EST

Hi Philipp:
On 2014å12æ03æ 17:19, Philipp Zabel wrote:
Hi Andy,

Am Mittwoch, den 03.12.2014, 08:54 +0800 schrieb Andy Yan:
+Required properities:
+- compatible: platform specific such as:
+ * "fsl,imx6q-hdmi"
+ * "fsl,imx6dl-hdmi"
+ * "rockchip,rk3288-dw-hdmi"
I think we should add a common compatible value "snps,dw-hdmi-tx" here:

compatible = "fsl,imx6q-hdmi", "snps,dw-hdmi-tx";

How about "snps,dw-hdmi", because the driver is not only about
hdmi tx, but also include hdmi phy.
Synopsys call the whole module
"DesignWare HDMI Transmitter (TX) IP Solution":

That includes the PHY. I'd prefer keeping the -tx in there to
differentiate from a possible future "snps,dw-hdmi-rx":

Ok, I will add the compatible "snps, dw-hdmi-tx",
So do I need to add this value to imx6dl.dtsi?
If we add such compatible value, do we have to implement another
platform driver like dw_hdmi-pltfm.c with the
compatible="snps,dw-hdmi" ,
or just include the compatible value in dw_hdmi-imx.c and
That common compatible doesn't have to be used by any driver. It's just
there to show these are the same/similar IP core.
If a common driver without any SoC specific knowledge could be written,
that one would match against the common compatible.


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