diff mbox series

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

Message ID 1624688321-69131-5-git-send-email-zhouyanjie@wanyeetech.com (mailing list archive)
State Accepted
Commit 23c64447b3538a6f34cb38aae3bc19dc1ec53436
Headers show
Series Misc Ingenic patches. | expand

Commit Message

Zhou Yanjie June 26, 2021, 6:18 a.m. UTC
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>
---

Notes:
    v4:
    New patch.

 arch/mips/boot/dts/ingenic/ci20.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Paul Cercueil June 30, 2021, 12:21 p.m. UTC | #1
Hi Zhou,

Le sam., juin 26 2021 at 14:18:40 +0800, 周琰杰 (Zhou Yanjie) 
<zhouyanjie@wanyeetech.com> 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 <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>

Cheers,
-Paul

> ---
> 
> 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
>
diff mbox series

Patch

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>;
 };