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From: <gregkh@linuxfoundation.org>
To: aford173@gmail.com, geert+renesas@glider.be
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] arm64: dts: renesas: beacon: Fix USB ref clock references" failed to apply to 5.10-stable tree
Date: Thu, 22 Jul 2021 20:48:25 +0200	[thread overview]
Message-ID: <1626979705124214@kroah.com> (raw)


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 {


             reply	other threads:[~2021-07-22 18:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22 18:48 gregkh [this message]
2021-08-11 20:57 ` FAILED: patch "[PATCH] arm64: dts: renesas: beacon: Fix USB ref clock references" failed to apply to 5.10-stable tree Sudip Mukherjee
2021-08-13  8:46   ` Greg KH

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