On Sun, 8 Aug 2010 23:37:00 -0700
Shawn Jin <shawnx...@gmail.com> wrote:
> Reading the fsl i2c bindings in the documentation, I found an example
> as follows.
> 27 i...@860 {
> 28 compatible = "fsl,mpc823-i2c",
> 29 "fsl,cpm1-i2c";
> 30 reg = <0x860 0x20 0x3c80 0x30>;
> 31 interrupts = <16>;
> 32 interrupt-parent = <&CPM_PIC>;
> 33 fsl,cpm-command = <0x10>;
> 34 #address-cells = <1>;
> 35 #size-cells = <0>;
> 36
> 37 r...@68 {
> 38 compatible = "dallas,ds1307";
> 39 reg = <0x68>;
> 40 };
> 41 };
> 42
>
> In the above example the rtc was explicitly declared as a subnode of
> the i2c node. Is this the way to connect (or bind) a RTC to the I2C
> driver?
Yes.
> What is the reg (0x68) under rtc node?
It's the 7-bit I2C address (without the low-order direction bit).
> I set breakpoint at ds1037_probe() and was hoping that it might be hit
> during the driver registration. But it didn't. Would the
> ds1037_probe() be called during when the ds1037_driver was registered
> as an I2C driver?
The probe function is called only if the device is declared. There is
no autodetection.
-Scott
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
