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Subject[PATCH] ARM: dts: Switch i2c0 to 400kHz on rk3288-evb-rk808
Date
We should be able to talk to the PMIC at 400kHz.  No need to talk at
the slow 100kHz.

As measured by ftrace (with a bunch of extra patches, since cpufreq
for rk808 hasn't landed yet):
before this change: cpu0_set_target() => ~500us
after this change: cpu0_set_target() => ~300us

Signed-off-by: Doug Anderson <dianders@chromium.org>
---
arch/arm/boot/dts/rk3288-evb-rk808.dts | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/rk3288-evb-rk808.dts b/arch/arm/boot/dts/rk3288-evb-rk808.dts
index 36db177..ff522f8 100644
--- a/arch/arm/boot/dts/rk3288-evb-rk808.dts
+++ b/arch/arm/boot/dts/rk3288-evb-rk808.dts
@@ -18,6 +18,7 @@
};

&i2c0 {
+ clock-frequency = <400000>;
status = "okay";

rk808: pmic@1b {
--
2.1.0.rc2.206.gedb03e5


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