The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From ebc666f39ff67a01e748c34d670ddf05a9e45220 Mon Sep 17 00:00:00 2001

From: Adam Ford aford173@gmail.com Date: Thu, 13 May 2021 06:46:16 -0500 Subject: [PATCH] arm64: dts: renesas: beacon: Fix USB ref clock references

The RZ/G2 boards expect there to be an external clock reference for USB2 EHCI controllers. For the Beacon boards, this reference clock is controlled by a programmable versaclock. Because the RZ/G2 family has a special clock driver when using an external clock, the third clock reference in the EHCI node needs to point to this special clock, called usb2_clksel.

Since the usb2_clksel does not keep the usb_extal clock enabled, the 4th clock entry for the EHCI nodes needs to reference it to keep the clock running and make USB functional.

Signed-off-by: Adam Ford aford173@gmail.com Link: https://lore.kernel.org/r/20210513114617.30191-2-aford173@gmail.com Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi index d8046fedf9c1..e3c8b2fe143e 100644 --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi @@ -271,12 +271,12 @@ &du_out_rgb { &ehci0 { dr_mode = "otg"; status = "okay"; - clocks = <&cpg CPG_MOD 703>, <&cpg CPG_MOD 704>; + clocks = <&cpg CPG_MOD 703>, <&cpg CPG_MOD 704>, <&usb2_clksel>, <&versaclock5 3>; };

&ehci1 { status = "okay"; - clocks = <&cpg CPG_MOD 703>, <&cpg CPG_MOD 704>; + clocks = <&cpg CPG_MOD 703>, <&cpg CPG_MOD 704>, <&usb2_clksel>, <&versaclock5 3>; };

&hdmi0 {