Hi Tony,
Am 06.01.2016 um 02:00 schrieb Tony Lindgren <tony@xxxxxxxxxxx>:
> * Nishanth Menon <nm@xxxxxx> [160105 15:40]:
>> On 01/05/2016 06:01 AM, H. Nikolaus Schaller wrote:
>>> tested on OMP5432 EVM
>>>
>>> Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
>>> ---
>>> arch/arm/boot/dts/omap5-board-common.dtsi | 8 ++++++++
>>> 1 file changed, 8 insertions(+)
>>>
>>> diff --git a/arch/arm/boot/dts/omap5-board-common.dtsi b/arch/arm/boot/dts/omap5-board-common.dtsi
>>> index 5cf76a1..30c0d3b 100644
>>> --- a/arch/arm/boot/dts/omap5-board-common.dtsi
>>> +++ b/arch/arm/boot/dts/omap5-board-common.dtsi
>>> @@ -358,6 +358,14 @@
>>> #clock-cells = <0>;
>>> };
>>>
>>> + rtc {
>>> + compatible = "ti,palmas-rtc";
>>> + interrupt-parent = <&palmas>;
>>> + interrupts = <8 IRQ_TYPE_NONE>;
>>
>> IRQ_TYPE_NONE is not correct here -> it should have some polarity - if
>> it had none, there'd be no interrupt, right?
>
> Also I'm not seeing just zeroes coming from RTC after typing hwclock
> on omap5-uevm. It's working on x15 though.
>
> Nikolaus, is hwclock command working for you on omap5-uevm?
Well, yes and no. It appears it *was* working when tested last time
(we sometimes have months of delay for submitting patches upstream).
I have found an SD image with 4.3-rc6 with this patch in the dtb and
there it works. With 4.4-rc8 it does not work. hwclock command hangs for
10 seconds (I guess some timeout).
I have checked the dtb and in both cases it is interrupts = <8 0>;
xxd /sys/firmware/devicetree/base/ocp/i2c@48070000/palmas@48/rtc/interrupts
0000000: 0000 0008 0000 0000
So I think something has changed in the rtc driver or somewhere else.
BR,
Nikolaus
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