[PATCH v7 21/24] MIPS: qi_lb60: Reduce system timer and clocksource to 750 kHz
From: Paul Cercueil <paul@crapouillou.net>
Date: 2018-08-21 17:18:43
Also in:
linux-clk, linux-devicetree, linux-mips, linux-pwm, linux-watchdog, lkml
Subsystem:
ingenic jz47xx socs, mips, the rest · Maintainers:
Paul Cercueil, Thomas Bogendoerfer, Linus Torvalds
The default clock (12 MHz) is too fast for the system timer, which fails
to report time accurately.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
Notes:
v5: New patch
v6: Remove ingenic,clocksource-channel property
v7: No change
arch/mips/boot/dts/ingenic/qi_lb60.dts | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
index 85529a142409..de9d45e2c24a 100644
--- a/arch/mips/boot/dts/ingenic/qi_lb60.dts
+++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts@@ -45,3 +45,9 @@ bias-disable; }; }; + +&tcu { + /* 750 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; + assigned-clock-rates = <750000>, <750000>; +};
--
2.11.0