From: Adrian Fiergolski <Adrian.Fiergolski@cern.ch>
To: linux-i2c@vger.kernel.org
Subject: nested I2C muxes
Date: Thu, 19 Jan 2017 19:03:26 +0100 [thread overview]
Message-ID: <595ed81b-546b-a60f-1bf1-b21f14c15b3c@cern.ch> (raw)
Hi,
I haven't found any information regarding support for nested i2c muxes.
Is the below device tree supported by the current driver ?
&i2c0 {
status = "okay";
clock-frequency = <400000>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c0_default>;
i2cswitch@74 {
compatible = "nxp,pca9548";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x74>;
i2c@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
si570: clock-generator@5d {
#clock-cells = <0>;
compatible = "silabs,si570";
temperature-stability = <50>;
reg = <0x5d>;
factory-fout = <156250000>;
clock-frequency = <148500000>;
};
};
i2c@2 {
#address-cells = <1>;
#size-cells = <0>;
reg = <5>;
i2cswitch_hpc@74 {
compatible = "nxp,pca9548";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x74>;
hpc_caribou_sources_enable@76 {
compatible= "nxp,pca9539";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x76>;
};
};
};
};
};
With such tree I am getting error
[2.173385] i2c i2c-2: of_i2c: invalid addr=0 on
/amba/i2c@e0004000/i2cswitch@74/i2c@2/i2cswitch_hpc@74
Regards,
Adrian Fiergolski
next reply other threads:[~2017-01-19 18:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 18:03 Adrian Fiergolski [this message]
2017-01-19 18:34 ` nested I2C muxes Peter Rosin
2017-01-19 22:50 ` Peter Rosin
2017-01-20 8:50 ` Adrian Fiergolski
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