linux-kernel - [PATCH 1/2] dt-bindings: net: snps,dwmac: add snps,rx-clk-runs-in-lpi parameter

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Message-Id: <20230123133747.18896-2-andrey.konovalov@linaro.org>
Date:   Mon, 23 Jan 2023 16:37:46 +0300
From:   Andrey Konovalov <andrey.konovalov@...aro.org>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, alexandre.torgue@...s.st.com,
        peppe.cavallaro@...com, joabreu@...opsys.com,
        mcoquelin.stm32@...il.com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org,
        Andrey Konovalov <andrey.konovalov@...aro.org>
Subject: [PATCH 1/2] dt-bindings: net: snps,dwmac: add snps,rx-clk-runs-in-lpi parameter

This patch adds a new parameter to the stmmac DT: snps,rx-clk-runs-in-lpi.

If this parameter is present in the device tree, the PHY should not stop
RX_CLK after entering Rx LPI state.

Signed-off-by: Andrey Konovalov <andrey.konovalov@...aro.org>
---
 Documentation/devicetree/bindings/net/snps,dwmac.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index e88a86623fce..771f09db4a3f 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -452,6 +452,11 @@ properties:
     description:
       Enable gating of the MAC TX clock during TX low-power mode
 
+  snps,rx-clk-runs-in-lpi:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      Keep RX_CLK from the PHY running in RX low-power mode
+
   snps,multicast-filter-bins:
     $ref: /schemas/types.yaml#/definitions/uint32
     description:
-- 
2.34.1