Re: [PATCH] hwmon: twl4030-madc-hwmon: Add device tree support.

[Sebastian Reichel <sre@ring0.de>]

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On Sun, Feb 16, 2014 at 08:39:54AM -0800, Guenter Roeck wrote:
> On 02/14/2014 06:08 AM, Belisko Marek wrote:
> >On Fri, Feb 14, 2014 at 2:31 PM, Mark Rutland <mark.rutland@arm.com> wrote:
> >>On Fri, Feb 14, 2014 at 01:20:58PM +0000, Marek Belisko wrote:
> >>>Signed-off-by: Marek Belisko <marek@goldelico.com>
> >>>---
> >>>  Documentation/devicetree/bindings/hwmon/twl4030-madc-hwmon.txt |  9 +++++++++
> >>>  drivers/hwmon/twl4030-madc-hwmon.c                             | 10 ++++++++++
> >>>  2 files changed, 19 insertions(+)
> >>>  create mode 100644 Documentation/devicetree/bindings/hwmon/twl4030-madc-hwmon.txt
> >>>
> >>>diff --git a/Documentation/devicetree/bindings/hwmon/twl4030-madc-hwmon.txt b/Documentation/devicetree/bindings/hwmon/twl4030-madc-hwmon.txt
> >>>new file mode 100644
> >>>index 0000000..e8016d1
> >>>--- /dev/null
> >>>+++ b/Documentation/devicetree/bindings/hwmon/twl4030-madc-hwmon.txt
> >>>@@ -0,0 +1,9 @@
> >>>+TWL4030 MADC hwmon.
> >>>+
> >>>+Required properties:
> >>>+- compatible: "ti,twl4030-madc-hwmon"
> >>>+
> >>>+Example:
> >>>+madc-hwmon {
> >>>+     compatible = "ti,twl4030-madc-hwmon";
> >>>+};
> >>
> >>Huh?
> >>
> >>What is this a binding for? From a look at the driver in mainline this
> >>just calls into functions from the twl4030 madc driver (which doesn't
> >>seem to have a binding).
> >I post bindings for twl4030-madc [1]. Without probing this driver
> >other things will not work (twl4030-madc-battery e.g.).
> >Is there better way to handle this situation?
> 
> Since you are converting twl4030-madc to be an iio driver,
> can't you simply use the iio_hwmon bridge and declare this driver
> obsolete ?

He didn't convert the driver, I did. That's why he included this
change.

I was thinking of using the iio_hwmon bridge and deprecating the
madc-hwmon driver. I have not tested this, though (lack of time).

-- Sebastian

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