[PATCH v2 1/5] ARM: zynq: DT: Add 'clock-latency' property

From: Soren Brinkmann
Date: Fri Apr 04 2014 - 19:15:00 EST


Specify the 'clock-latency' property to avoid certain cpufreq governors
from refusing to work with the following error:
ondemand governor failed, too long transition latency of HW, fallback to performance governor

Reported-by: Mike Looijmans <mike.looijmans@xxxxxxxx>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xxxxxxxxxx>
Tested-by: Mike Looijmans <mike.looijmans@xxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
This is a fix from our vendor tree

Changes in v2:
- This patch has been added

---
arch/arm/boot/dts/zynq-7000.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index 789d0bacc110..20a13cba65a3 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -24,6 +24,7 @@
device_type = "cpu";
reg = <0>;
clocks = <&clkc 3>;
+ clock-latency = <1000>;
operating-points = <
/* kHz uV */
666667 1000000
--
1.9.1.1.gbb9f595

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