linux-kernel - [PATCH v7 3/3] arm64: dts: st: set rcc as an access-controller

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Message-Id: <20250922-b4-rcc-upstream-v7-3-2dfc4e018f40@gmail.com>
Date: Mon, 22 Sep 2025 10:12:20 +0200
From: Clément Le Goffic <legoffic.clement@...il.com>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Gabriel Fernandez <gabriel.fernandez@...s.st.com>
Cc: linux-clk@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Clément Le Goffic <legoffic.clement@...il.com>, 
 Clément Le Goffic <clement.legoffic@...s.st.com>
Subject: [PATCH v7 3/3] arm64: dts: st: set rcc as an access-controller

From: Clément Le Goffic <clement.legoffic@...s.st.com>

RCC now implements firewall access ops to check the access to
resources. Allow client nodes to query the RCC with one firewall ID.

Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
Signed-off-by: Clément Le Goffic <legoffic.clement@...il.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 303abf915b8e..fbedf23def52 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -1677,6 +1677,7 @@ rcc: clock-controller@...00000 {
 			reg = <0x44200000 0x10000>;
 			#clock-cells = <1>;
 			#reset-cells = <1>;
+			#access-controller-cells = <1>;
 			clocks = <&scmi_clk CK_SCMI_HSE>,
 				<&scmi_clk CK_SCMI_HSI>,
 				<&scmi_clk CK_SCMI_MSI>,

-- 
2.43.0