Thread (1 message) 1 message, 1 author, 2021-07-06
STALE1823d REVIEWED: 1 (1M)

1 review trailer (1 from subsystem maintainers).

[PATCH AUTOSEL 5.13 189/189] MIPS: CI20: Reduce clocksource to 750 kHz.

From: Sasha Levin <sashal@kernel.org>
Date: 2021-07-06 11:28:50
Also in: linux-mips, lkml, stable
Subsystem: ingenic jz47xx socs, mips, the rest · Maintainers: Paul Cercueil, Thomas Bogendoerfer, Linus Torvalds

From: 周琰杰 (Zhou Yanjie) <redacted>

[ 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 <redacted>
Tested-by: Nikolaus Schaller <redacted> # on CI20
Signed-off-by: 周琰杰 (Zhou Yanjie) <redacted>
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
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