Hello Doug, Kukjin, On 26 June 2014 11:46, Naveen Krishna Ch <naveenkrishna.ch@xxxxxxxxx> wrote: > Doug, > > On 26 June 2014 02:10, Doug Anderson <dianders@xxxxxxxxxxxx> wrote: >> Naveen, >> >> On Tue, Jun 24, 2014 at 11:29 PM, Naveen Krishna Chatradhi >> <ch.naveen@xxxxxxxxxxx> 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@xxxxxxxxxxx> >>> Cc: Doug Anderson <dianders@xxxxxxxxxxxx> >>> --- >>> 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@xxxxxxxxxxxxxxx/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@xxxxxxxxxxxx> >> Tested-by: Doug Anderson <dianders@xxxxxxxxxxxx> > > > > -- > Shine bright, > (: Nav :) -- Shine bright, (: Nav :) -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
