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From: Alex Bee <knaerzche@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
	linux-phy@lists.infradead.org, Alex Bee <knaerzche@gmail.com>
Subject: [PATCH v3 5/5] ARM: dts: rockchip: Make usbphy the parent of SCLK_USB480M for RK3128
Date: Sun, 19 Nov 2023 13:13:40 +0100	[thread overview]
Message-ID: <20231119121340.109025-6-knaerzche@gmail.com> (raw)
In-Reply-To: <20231119121340.109025-1-knaerzche@gmail.com>

Without setting the parent for SCLK_USB480M the clock will use xin24m as
it's default parent.
While this is generally not an issue for the usb blocks to work, it becomes
an issue for RK3128 since SCLK_USB480M can be a parent for other HW blocks
(GPU, VPU, VIO), but they will never chose it, since it is currently always
running at OSC frequency which is to slow for their needs.

This sets the usb2 phy's output as SCLK_USB480M's parent and it's users
can chose it if desired.

Signed-off-by: Alex Bee <knaerzche@gmail.com>
---
Changes in v3:
 - moved parent assignment to the phy node

 arch/arm/boot/dts/rockchip/rk3128.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/rockchip/rk3128.dtsi b/arch/arm/boot/dts/rockchip/rk3128.dtsi
index c8844e0024dc..61b292c7c4c3 100644
--- a/arch/arm/boot/dts/rockchip/rk3128.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk3128.dtsi
@@ -266,6 +266,8 @@ usb2phy: usb2phy@17c {
 			clocks = <&cru SCLK_OTGPHY0>;
 			clock-names = "phyclk";
 			clock-output-names = "usb480m_phy";
+			assigned-clocks = <&cru SCLK_USB480M>;
+			assigned-clock-parents = <&usb2phy>;
 			#clock-cells = <0>;
 			status = "disabled";
 
-- 
2.42.0


  parent reply	other threads:[~2023-11-19 12:14 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-19 12:13 [PATCH v3 0/5] Add USB support " Alex Bee
2023-11-19 12:13 ` [PATCH v3 1/5] phy: rockchip-inno-usb2: Split ID interrupt phy registers Alex Bee
2023-11-20 14:46   ` Heiko Stuebner
2023-11-19 12:13 ` [PATCH v3 2/5] phy: phy-rockchip-inno-usb2: Add RK3128 support Alex Bee
2023-11-20 14:51   ` Heiko Stuebner
2023-11-19 12:13 ` [PATCH v3 3/5] ARM: dts: rockchip: Add USB host clocks for RK3128 Alex Bee
2023-11-19 12:13 ` [PATCH v3 4/5] ARM: dts: rockchip: Add dwc2 otg fifo siztes " Alex Bee
2023-11-19 12:13 ` Alex Bee [this message]
2023-11-20 15:31 ` (subset) [PATCH v3 0/5] Add USB support " Heiko Stuebner
2023-11-27 13:22 ` Vinod Koul

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