[PATCH AUTOSEL 5.10 31/88] arm64: dts: renesas: beacon: Fix USB ref clock references

[Sasha Levin]

From: Adam Ford <aford173@xxxxxxxxx>

[ Upstream commit ebc666f39ff67a01e748c34d670ddf05a9e45220 ]

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@xxxxxxxxx>
Link: https://lore.kernel.org/r/20210513114617.30191-2-aford173@xxxxxxxxx
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi
index 597388f87127..bc4bb5dd8bae 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 {
-- 
2.30.2