From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Adam Ford <aford173@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Sasha Levin <sashal@kernel.org>,
linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH AUTOSEL 5.13 038/108] arm64: dts: renesas: beacon: Fix USB ref clock references
Date: Wed, 14 Jul 2021 15:36:50 -0400 [thread overview]
Message-ID: <20210714193800.52097-38-sashal@kernel.org> (raw)
In-Reply-To: <20210714193800.52097-1-sashal@kernel.org>
From: Adam Ford <aford173@gmail.com>
[ 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@gmail.com>
Link: https://lore.kernel.org/r/20210513114617.30191-2-aford173@gmail.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 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 {
--
2.30.2
next prev parent reply other threads:[~2021-07-14 19:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210714193800.52097-1-sashal@kernel.org>
2021-07-14 19:36 ` [PATCH AUTOSEL 5.13 037/108] arm64: dts: renesas: beacon: Fix USB extal reference Sasha Levin
2021-07-14 19:36 ` Sasha Levin [this message]
2021-07-14 19:37 ` [PATCH AUTOSEL 5.13 090/108] thermal/drivers/rcar_gen3_thermal: Do not shadow rcar_gen3_ths_tj_1 Sasha Levin
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