Re: [PATCHv4 4/7] Documentation: dt: socfpga: Add Arria10 Ethernet binding

From: Thor Thayer
Date: Tue Jun 21 2016 - 12:09:16 EST




On 06/21/2016 10:48 AM, Rob Herring wrote:
On Tue, Jun 21, 2016 at 9:46 AM, Thor Thayer
<tthayer@xxxxxxxxxxxxxxxxxxxxx> wrote:
Hi Rob,


On 06/21/2016 08:33 AM, Rob Herring wrote:

On Mon, Jun 20, 2016 at 09:50:49AM -0500, tthayer@xxxxxxxxxxxxxxxxxxxxx
wrote:

From: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>

Add the device tree bindings needed to support the Altera Ethernet
FIFO buffers on the Arria10 chip.

Signed-off-by: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>
---
v2 No Change
v3 Change to common compatible string based on maintainer comments
Add local IRQ values.
v4 Add compatible string for parent node.
---
.../bindings/arm/altera/socfpga-eccmgr.txt | 24
++++++++++++++++++++
1 file changed, 24 insertions(+)

diff --git
a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
index 15eb0df..7c714ba 100644
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
@@ -82,6 +82,14 @@ Required Properties:
- interrupts : Should be single bit error interrupt, then double bit
error
interrupt, in this order.

+Ethernet FIFO ECC
+Required Properties:
+- compatible : Should be "altr,socfpga-eth-mac-ecc"
+- reg : Address and size for ECC block registers.
+- parent : phandle to parent (altr,socfpga-stmmac) Ethernet node.


Sorry if I wasn't clear before, but I was suggesting changing 'parent'
to 'altr,ethernet-mac':

altr,ethernet-mac = <&gmac0>;

Rob

Ahh, I see what you're saying.

I used parent as the tag because I have a generic function for validating
that the parent status is "okay" using the "parent" string in my
validate_parent_available() function (see below).

Ah, so common ecc-mgr code is parsing it. Then how about 'altr,ecc-parent'?

Rob

That's clean - I'll change to that string. Thanks!