Thread (10 messages) 10 messages, 3 authors, 2025-12-29

Re: [PATCH v1 2/2] dt-bindings: net: micrel: Convert micrel-ksz90x1.txt to DT schema

From: Andrew Lunn <andrew@lunn.ch>
Date: 2025-12-23 14:39:28
Also in: linux-devicetree, lkml

+      patternProperties:
+        '^([rt]xd[0-3]|[rt]xc|rxdv|txen)-skew-ps$':
+          description: |
+            Skew control of the pad in picoseconds. A value of 0 equals to a
+            skew of -840ps.
+            The actual increment on the chip is 120ps ranging from -840ps to
+            960ps, this mismatch comes from a documentation error before
+            datasheet revision 1.2 (Feb 2014):
-  Device Tree Value	Delay	Pad Skew Register Value
-  -----------------------------------------------------
-	0   		-840ps		0000
-	200 		-720ps		0001
-	400 		-600ps		0010
-	600 		-480ps		0011
-	800 		-360ps		0100
-	1000		-240ps		0101
-	1200		-120ps		0110
-	1400		   0ps		0111
-	1600		 120ps		1000
-	1800		 240ps		1001
-	2000		 360ps		1010
-	2200		 480ps		1011
-	2400		 600ps		1100
-	2600		 720ps		1101
-	2800		 840ps		1110
-	3000		 960ps		1111
I think this table is more readable? But maybe without the register
value, which is an implementation detail.

	Andrew
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