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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "周琰杰 (Zhou Yanjie)" <zhouyanjie@wanyeetech.com>,
	"Nikolaus Schaller" <hns@goldelico.com>,
	"Paul Cercueil" <paul@crapouillou.net>,
	"Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
	"Sasha Levin" <sashal@kernel.org>,
	linux-mips@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH AUTOSEL 5.13 189/189] MIPS: CI20: Reduce clocksource to 750 kHz.
Date: Tue,  6 Jul 2021 07:14:09 -0400	[thread overview]
Message-ID: <20210706111409.2058071-189-sashal@kernel.org> (raw)
In-Reply-To: <20210706111409.2058071-1-sashal@kernel.org>

From: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>

[ Upstream commit 23c64447b3538a6f34cb38aae3bc19dc1ec53436 ]

The original clock (3 MHz) is too fast for the clocksource,
there will be a chance that the system may get stuck.

Reported-by: Nikolaus Schaller <hns@goldelico.com>
Tested-by: Nikolaus Schaller <hns@goldelico.com> # on CI20
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/boot/dts/ingenic/ci20.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 8877c62609de..3a4eaf1f3f48 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -525,10 +525,10 @@ pins_mmc1: mmc1 {
 
 &tcu {
 	/*
-	 * 750 kHz for the system timer and 3 MHz for the clocksource,
+	 * 750 kHz for the system timer and clocksource,
 	 * use channel #0 for the system timer, #1 for the clocksource.
 	 */
 	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>,
 					  <&tcu TCU_CLK_OST>;
-	assigned-clock-rates = <750000>, <3000000>, <3000000>;
+	assigned-clock-rates = <750000>, <750000>, <3000000>;
 };
-- 
2.30.2


      parent reply	other threads:[~2021-07-06 11:25 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210706111409.2058071-1-sashal@kernel.org>
2021-07-06 11:11 ` [PATCH AUTOSEL 5.13 033/189] net: mdio: provide shim implementation of devm_of_mdiobus_register Sasha Levin
2021-07-06 11:14 ` Sasha Levin [this message]

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