On Fri, Jun 2, 2017 at 4:10 PM,  [off-list ref] wrote:

On Friday, June 2, 2017 9:54:22 PM PDT Andreas Färber wrote:

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Am 02.06.2017 um 21:39 schrieb stillcompiling-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org:

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On Friday, June 2, 2017 6:30:12 PM PDT Andreas Färber wrote:

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Am 25.05.2017 um 19:29 schrieb Joshua Clayton:

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diff --git a/arch/arm/boot/dts/imx6q-evi.dts

b/arch/arm/boot/dts/imx6q-evi.dts index 24fe093a66db..a0cbb2d84803
100644

--- a/arch/arm/boot/dts/imx6q-evi.dts
+++ b/arch/arm/boot/dts/imx6q-evi.dts

@@ -82,6 +82,15 @@

  pinctrl-names = "default";
  pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1cs>;
  status = "okay";

+
+ fpga_spi: cyclonespi@0 {

"cyclonespi" does not strike me as the best node name.

I am guessing this is a sub-node of a SPI controller node, so no need to
repeat "spi", and Cyclone seems more or less implied by "altr,fpga-".

True.

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Note that the example in the bindings doc uses "evi-fpga-spi". Nodes
don't need to be (shouldn't be?) prefixed with the board. Note that
bindings examples tend to get copied a lot.

Any reason not to just use "fpga@0" in both places for simplicity?

Sure. fpga: fpga@0 is probably better.

Note that I was only commenting on the node name, the latter part.

I'm not aware of any rules for the label, so that could remain unchanged
or adopt cyclone_spi from the old node name or whatever is unique and
syntactically valid.

Too late! Patches posted.
Oh, well, I'm not changing it back.

It's fine as it is in v12.

fpga_mgr: fpga-mgr@0 is what I've been using most recently.  It
distinguishes the one block that is used to program the fpga from the
fpga and hardware in the fpga.  But no need to respin this.

Alan

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I'll change it in both the dts and the binding doc.

Thanks. Maybe double-check if there's any conventions Xilinx/Lattice DTs
are using.

Of the conventions I found, fpga seemed the most "hardware descriptive"
for a plain FPGA.
The other one several binding doc examples are using is "fpga-mgr".

quoted

Cheers,
Andreas

--
~Joshua A Clayton

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