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.looijm...@topic.nl>
Signed-off-by: Soren Brinkmann <soren.brinkm...@xilinx.com>
Tested-by: Mike Looijmans <mike.looijm...@topic.nl>
Signed-off-by: Michal Simek <michal.si...@xilinx.com>
---
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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