From: G, Manjunath Kondaiah<manjugk@xxxxxx>
To: devicetree-discuss@xxxxxxxxxxxxxxxx
CC: linux-omap@xxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Update omap4 panda dts file with required clock frequencies
for the i2c client devices existing on panda board.
Signed-off-by: G, Manjunath Kondaiah<manjugk@xxxxxx>
---
arch/arm/boot/dts/omap4-panda.dts | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index c28aa95..6b831ca 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -3,4 +3,20 @@
/ {
model = "TI OMAP4 PandaBoard";
compatible = "ti,omap4-panda", "ti,omap4430";
+
+ i2c1 {
+ clock-frequency =<400000>;
+ };
+
+ i2c2 {
+ clock-frequency =<400000>;
+ };
+
+ i2c3 {
+ clock-frequency =<400000>;
+ };
+
+ i2c4 {
+ clock-frequency =<400000>;
+ };
};
Are you sure that this patch is setting the expected frequency?
I see 100kHz in the boot log even with that patch.
I took me some time to find the proper syntax, but in order to reference
an existing node, you have to use &i2c1 at the top level of the file. If
you check the output of the DTC compiler, you will see the property at
the proper node.
Benoit
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