RE: [PATCH v2 8/8] arm64: dts: ls1028a-qds: add overlays for various serdes protocols

-----Original Message-----
From: Shawn Guo <shawnguo@kernel.org>
Sent: Tuesday, December 14, 2021 3:22 PM
To: Leo Li <redacted>
Cc: linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org;
Alexandru Marginean [off-list ref]; Ioana Ciornei
[off-list ref]; Aisheng Dong [off-list ref]; Jason
Liu [off-list ref]; Vladimir Oltean [off-list ref]
Subject: Re: [PATCH v2 8/8] arm64: dts: ls1028a-qds: add overlays for various
serdes protocols

On Fri, Dec 03, 2021 at 06:17:18PM -0600, Li Yang wrote:

quoted

From: Alex Marginean <redacted>

[snip]

quoted

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-9999.dts

b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-9999.dts
new file mode 100644
index 000000000000..1ef743c48e84

--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds-9999.dts

@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree fragment for LS1028A QDS board, serdes 85xx
+ *
+ * Copyright 2019-2021 NXP
+ *
+ * Requires a LS1028A QDS board without lane B rework.
+ * Requires a SCH-24801 card in slot 1.
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	fragment@0 {

Is fragment0 more appropriate maybe, as @unit-address requires a
corresponding 'reg' property?

Not sure if the overlay framework will use the index information somehow, but this is how it is demonstrated in the Documentation/devicetree/overlay-notes.rst document.

Regards,
Leo

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