linux-kernel - [PATCH 6.6 v3] riscv: dts: starfive: add assigned-clock* to limit frquency

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Message-ID: <247345579659D8F7+20240916034603.59120-1-wangyuli@uniontech.com>
Date: Mon, 16 Sep 2024 11:46:02 +0800
From: WangYuli <wangyuli@...ontech.com>
To: stable@...r.kernel.org,
	gregkh@...uxfoundation.org,
	sashal@...nel.org,
	william.qiu@...rfivetech.com,
	emil.renner.berthing@...onical.com,
	conor.dooley@...rochip.com,
	wangyuli@...ontech.com
Cc: kernel@...il.dk,
	conor@...nel.org,
	robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	paul.walmsley@...ive.com,
	palmer@...belt.com,
	aou@...s.berkeley.edu,
	linux-riscv@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 6.6 v3] riscv: dts: starfive: add assigned-clock* to limit frquency

From: William Qiu <william.qiu@...rfivetech.com>

[ Upstream commit af571133f7ae028ec9b5fdab78f483af13bf28d3 ]

In JH7110 SoC, we need to go by-pass mode, so we need add the
assigned-clock* properties to limit clock frquency.

Signed-off-by: William Qiu <william.qiu@...rfivetech.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: WangYuli <wangyuli@...ontech.com>
---
 .../riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index 062b97c6e7df..4874e3bb42ab 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -204,6 +204,8 @@ &i2c6 {
 
 &mmc0 {
 	max-frequency = <100000000>;
+	assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>;
+	assigned-clock-rates = <50000000>;
 	bus-width = <8>;
 	cap-mmc-highspeed;
 	mmc-ddr-1_8v;
@@ -220,6 +222,8 @@ &mmc0 {
 
 &mmc1 {
 	max-frequency = <100000000>;
+	assigned-clocks = <&syscrg JH7110_SYSCLK_SDIO1_SDCARD>;
+	assigned-clock-rates = <50000000>;
 	bus-width = <4>;
 	no-sdio;
 	no-mmc;
-- 
2.43.0