archives/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-03-08 01:04:41 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

dt-bindings: firmware: fsl,scu: Mark multi-channel MU layouts as deprecated

Browse source 
The SCU MU driver has already supported the simple and efficient single-TX
and single-RX channel layout since 2021. The older multi-channel MU
configurations (tx0..tx3 and rx0..rx3) are less efficient in practice and
not needed.

Mark these legacy mbox-names and mboxes tuple layouts as deprecated in the
binding schema. The driver continues to support them for backward
compatibility in case firmware publishes the legacy properties.

The example section is updated accordingly to demonstrate the recommended
layout.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260127-scu-v2-1-03f3aaa56e1b@nxp.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
This commit is contained in:
Peng Fan 2026-01-27 07:06:00 +08:00 • committed by Rob Herring (Arm)
parent a91b99fa77
commit 39451ebcf7
1 changed files with 11 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

20
Documentation/devicetree/bindings/firmware/fsl,scu.yaml
View file

@ -76,7 +76,8 @@ properties:
- description: TX0 MU channel
- description: RX0 MU channel
- description: optional MU channel for general interrupt
- items:
- deprecated: true
items:
- description: TX0 MU channel
- description: TX1 MU channel
- description: TX2 MU channel
@ -85,7 +86,8 @@ properties:
- description: RX1 MU channel
- description: RX2 MU channel
- description: RX3 MU channel
- items:
- deprecated: true
items:
- description: TX0 MU channel
- description: TX1 MU channel
- description: TX2 MU channel
@ -105,7 +107,8 @@ properties:
- const: tx0
- const: rx0
- const: gip3
- items:
- deprecated: true
items:
- const: tx0
- const: tx1
- const: tx2
@ -114,7 +117,8 @@ properties:
- const: rx1
- const: rx2
- const: rx3
- items:
- deprecated: true
items:
- const: tx0
- const: tx1
- const: tx2
@ -167,11 +171,9 @@ examples:
firmware {
system-controller {
compatible = "fsl,imx-scu";
mbox-names = "tx0", "tx1", "tx2", "tx3",
"rx0", "rx1", "rx2", "rx3",
"gip3";
mboxes = <&lsio_mu1 0 0 &lsio_mu1 0 1 &lsio_mu1 0 2 &lsio_mu1 0 3
&lsio_mu1 1 0 &lsio_mu1 1 1 &lsio_mu1 1 2 &lsio_mu1 1 3
mbox-names = "tx0", "rx0", "gip3";
mboxes = <&lsio_mu1 0 0
&lsio_mu1 1 0
&lsio_mu1 3 3>;
clock-controller {