netdev - [PATCH net-next v2 2/2] ARM: dts: stm32: add missing PTP reference clocks on stm32mp13x SoCs

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Message-ID: <20250729-relative_flex_pps-v2-2-3e5f03525c45@foss.st.com>
Date: Tue, 29 Jul 2025 16:52:01 +0200
From: Gatien Chevallier <gatien.chevallier@...s.st.com>
To: Andrew Lunn <andrew+netdev@...n.ch>,
        "David S. Miller"
	<davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin
	<mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Richard Cochran <richardcochran@...il.com>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <netdev@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Gatien Chevallier
	<gatien.chevallier@...s.st.com>
Subject: [PATCH net-next v2 2/2] ARM: dts: stm32: add missing PTP reference
 clocks on stm32mp13x SoCs

ETH1/2 miss their PTP reference clock in the SoC device tree. Add them
as the fallback is not correctly handled for PPS generation and it seems
there's no reason to not add them.

Signed-off-by: Gatien Chevallier <gatien.chevallier@...s.st.com>
---
 arch/arm/boot/dts/st/stm32mp131.dtsi | 2 ++
 arch/arm/boot/dts/st/stm32mp133.dtsi | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32mp131.dtsi b/arch/arm/boot/dts/st/stm32mp131.dtsi
index 492bcf586361c487208439ed71a93c2bf83d5eb2..6f5720fb9fa1f58bd97b6bf19fc898f0fecb34d1 100644
--- a/arch/arm/boot/dts/st/stm32mp131.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp131.dtsi
@@ -1602,11 +1602,13 @@ ethernet1: ethernet@...0a000 {
 					      "mac-clk-tx",
 					      "mac-clk-rx",
 					      "ethstp",
+					      "ptp_ref",
 					      "eth-ck";
 				clocks = <&rcc ETH1MAC>,
 					 <&rcc ETH1TX>,
 					 <&rcc ETH1RX>,
 					 <&rcc ETH1STP>,
+					 <&rcc ETH1PTP_K>,
 					 <&rcc ETH1CK_K>;
 				st,syscon = <&syscfg 0x4 0xff0000>;
 				snps,mixed-burst;
diff --git a/arch/arm/boot/dts/st/stm32mp133.dtsi b/arch/arm/boot/dts/st/stm32mp133.dtsi
index e48838374f0df4e003aee5046e45b49986c1daea..0112c05b13e1f02e5ec4b4bffc9a11b4bef1b9bc 100644
--- a/arch/arm/boot/dts/st/stm32mp133.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp133.dtsi
@@ -81,11 +81,13 @@ ethernet2: ethernet@...0e000 {
 			      "mac-clk-tx",
 			      "mac-clk-rx",
 			      "ethstp",
+			      "ptp_ref",
 			      "eth-ck";
 		clocks = <&rcc ETH2MAC>,
 			 <&rcc ETH2TX>,
 			 <&rcc ETH2RX>,
 			 <&rcc ETH2STP>,
+			 <&rcc ETH2PTP_K>,
 			 <&rcc ETH2CK_K>;
 		st,syscon = <&syscfg 0x4 0xff000000>;
 		snps,mixed-burst;

-- 
2.25.1