On Friday 14 September 2012, AnilKumar, Chimata wrote:
>> On Fri, Sep 14, 2012 at 13:56:06, Arnd Bergmann wrote:
> > On Thursday 13 September 2012, AnilKumar Ch wrote:
> >
> > Why do you put the "reg" property here
>
> Here I specified reg property because lis331dlh I2C slave address is 0x18.
>
> >
> > > dcan1: d_can@481d0000 {
> > > status = "okay";
> > > pinctrl-names = "default";
> > > @@ -61,6 +70,39 @@
> > > regulator-max-microvolt = <5000000>;
> > > regulator-boot-on;
> > > };
> > > +
> > > + lis3_reg: fixedregulator@1 {
> > > + compatible = "regulator-fixed";
> > > + regulator-name = "lis3_reg";
> > > + regulator-boot-on;
> > > + };
> > > +};
> > > +&lis331dlh {
> > > + compatible = "st,lis3lv02d-i2c";
> >
> > and all the rest here? At least I would expect the "compatible" property
> > to be in the same place above.
>
> This data is appended to above one, to make it readable I moved remaining
> properties to here.
I don't follow how this is making things more readable.
Maybe a more logical way to do this would be use the existing i2c2 label
and write all the additions as
i2c2: {
status = "okay";
clock-frequency = <400000>;
lis331dlh@18 {
compatible = "st,lis3lv02d";
reg = <0x18>;
vdd-supply = <&lis3_reg>;
vdd-io-supply = <&lis3_reg>;
...
};
> > Also, I think you should remove the "-i2c" postfix from the name, that
> > is already implied by the parent bus.
>
> I will remove, but in case of spi the compatible name is lis3lv02d_spi.
> By mistake I have uses "-i2c" instead of "_i2c".
The normal convention is to use '-', not '_', so that part was ok.
I think naming the other one lis3lv02d_spi was a mistake, it should
be named 'st,lis3lv02d' independent of the bus IMHO.
> Document is already present,
> http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git;a=commit;h=2f2ff3cc8d930493f9a598b9192706c09403e12e
>
> Some minor changes in docs, in my next version I will update document
> as well. I will send V3 if there are no comments on v2.
Ok.
Arnd
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