[PATCH 4/4 v2] ARM: DTS: Add NTC thermistor nodes to Exynos5420 based Peach_PIT

[Naveen Krishna Ch]

Hello Doug, Kukjin,

On 26 June 2014 11:46, Naveen Krishna Ch <naveenkrishna.ch at gmail.com> wrote:
> Doug,
>
> On 26 June 2014 02:10, Doug Anderson <dianders at chromium.org> wrote:
>> Naveen,
>>
>> On Tue, Jun 24, 2014 at 11:29 PM, Naveen Krishna Chatradhi
>> <ch.naveen at samsung.com> wrote:
>>> Exynos5420 based Peach PIT board has 4 NTC thermistors to measure
>>> temperatures at various points on the board.
>>>
>>> IIO based ADC becomes the parent and NTC thermistors are the childs,
>>> via the HWMON interface.
>>>
>>> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen at samsung.com>
>>> Cc: Doug Anderson <dianders at chromium.org>
>>> ---
>>> Changes since v1:
>>> 1. Arranged the ADC node alphabetical
>>> 2. Added "status = "okay"" to the ADC node
>>>
>>> This patch needs
>>> 1. MAX77802 PMIC device tree nodes (for ldo9)
>>>    https://www.mail-archive.com/devicetree@vger.kernel.org/msg31430.html
>>> 2. Uses the DT documentation for NTC thermistors updated with vendor-prefix
>>>
>>> This patch set is tested
>>> 1. On Peach PIT board via sysfs entry exposed by hwmon
>>> localhost ~ # cat /sys/class/hwmon/hwmon*/device/temp1_input
>>> 37436
>>> 36449
>>> 38560
>>> 38059
>>>
>>> 2. Backward compatibility is tested by replacing "murata" with "ntc"
>>>    in the dts nodes and running the above test.
>>>
>>>  arch/arm/boot/dts/exynos5420-peach-pit.dts |   34 ++++++++++++++++++++++++++++
>>>  1 file changed, 34 insertions(+)
>>
>> Now that Javier has spun his patch, perhaps you can fold the "pi"
>> version in here too?
>
> Sure, thanks for the information.
>
> Snow also needs the adc nodes.
> Will try to implement an adc fragment for PIT, PI and Snow.

I just found out  https://lkml.org/lkml/2013/3/27/453

Adding ADC based Thermistor nodes to Exynos5250-snow.dts din't make it in.


>
>>
>> Reviewed-by: Doug Anderson <dianders at chromium.org>
>> Tested-by: Doug Anderson <dianders at chromium.org>
>
>
>
> --
> Shine bright,
> (: Nav :)



-- 
Shine bright,
(: Nav :)