Re: [PATCHv2] arm: dts: socfpga: Add SPI nodes to SOCFPGA DT.

On 10/08/2014 03:05 PM, Mark Brown wrote:

On Wed, Oct 08, 2014 at 02:27:08PM -0500, tthayer-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org wrote:

quoted

+			spidev@0 {
+				compatible = "spidev";
+				reg = <0>;	/* chip select */
+				spi-max-frequency = <100000000>;
+			};

No, if you're putting spidev into the DT that's broken - describe the
hardware, not the software you're using to control it.

Hi Mark,

There are quite a few instances of the spidev as a child of a spi node 
in the arch/arm/dts directory
- imx6qdl-tx6.dtsi
- imx53-tx53.dtsi
- tegra30-apalis-eval.dts
- spear1340-evb.dts

I believe the reason these are added to the device tree is that they are 
automatically probed.

If there is a different or better way to handle spidev, I'll be happy to 
do it. This seemed to be the cleanest way and had precedent.

Thanks for reviewing this and I appreciate your input.

Thor
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