Thread (26 messages) 26 messages, 4 authors, 2025-07-03

Re: [PATCH v7 02/14] dt-bindings: net: mediatek,net: update for mt7988

From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2025-07-01 06:41:46
Also in: linux-arm-kernel, linux-devicetree, linux-mediatek, linux-pm, lkml

On Sat, Jun 28, 2025 at 06:54:37PM +0200, Frank Wunderlich wrote:
From: Frank Wunderlich <redacted>

Update binding for mt7988 which has 3 gmac and a sram for dma
operations.
I asked why you are updating. You claim you update because it has 3
GMAC... but that's irrelevant, because it is easy to answer with: it did
not have 3 GMAC before?

So same question: Provide real reason why you are making updates. That's
why you have commit msg.

MT7988 has 4 FE IRQs (currently only 2 are used) and 4 IRQs for use
mt7988 or MT7988? gmac or GMAC? SRAM or SRAM? and so on... it is not
easy to read and understand your commit msgs.
quoted hunk ↗ jump to hunk
with RSS/LRO later.

Signed-off-by: Frank Wunderlich <redacted>
---
v6:
- split out the interrupt-names into separate patch
- update irq(name) min count to 4
- add sram-property
- drop second reg entry and minitems as there is only 1 item left again

v5:
- fix v4 logmessage and change description a bit describing how i get
  the irq count.
- update binding for 8 irqs with different names (rx,tx => fe0..fe3)
  including the 2 reserved irqs which can be used later
- change rx-ringX to pdmaX to be closer to hardware documentation

v4:
- increase max interrupts to 6 because of adding RSS/LRO interrupts (4)
  and dropping 2 reserved irqs (0+3) around rx+tx
- dropped Robs RB due to this change
- allow interrupt names
- add interrupt-names without reserved IRQs on mt7988
  this requires mtk driver patch:
  https://patchwork.kernel.org/project/netdevbpf/patch/20250616080738.117993-2-linux@fw-web.de/

v2:
- change reg to list of items
---
 Documentation/devicetree/bindings/net/mediatek,net.yaml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index 6672db206b38..74a139000f60 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -28,7 +28,8 @@ properties:
       - ralink,rt5350-eth
 
   reg:
-    maxItems: 1
+    items:
+      - description: Register for accessing the MACs.
Why making this change? It's redundant and nothing in commit msg
explains that.

Best regards,
Krzysztof
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