Thread (12 messages) 12 messages, 4 authors, 2021-07-02

Re: [PATCH v4 4/5] MIPS: CI20: Reduce clocksource to 750 kHz.

From: Paul Cercueil <paul@crapouillou.net>
Date: 2021-06-30 12:21:30
Also in: linux-clk, linux-mips, lkml

Hi Zhou,

Le sam., juin 26 2021 at 14:18:40 +0800, 周琰杰 (Zhou Yanjie) 
[off-list ref] a écrit :
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>

Cheers,
-Paul
quoted hunk ↗ jump to hunk
---

Notes:
    v4:
    New patch.

 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 8877c62..3a4eaf1 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -525,10 +525,10 @@

 &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>;
 };
--
2.7.4
  
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