[PATCH V4 3/4] ARM: bcm2835: add thermal node to device-tree of bcm283x
Martin Sperl
kernel at martin.sperl.org
Fri Sep 9 07:58:05 PDT 2016
> On 09.09.2016, at 16:25, Stefan Wahren <stefan.wahren at i2se.com> wrote:
>
>> Am 09.09.2016 um 09:49 schrieb kernel at martin.sperl.org:
>> From: Martin Sperl <kernel at martin.sperl.org>
>>
>> Add the node for the thermal sensor of the bcm2835-soc
>> to the device tree.
>>
>> Signed-off-by: Martin Sperl <kernel at martin.sperl.org>
>> Reviewed-by: Eric Anholt <eric at anholt.net>
>> ---
>> arch/arm/boot/dts/bcm283x.dtsi | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
>> index b982522..e2e3a46 100644
>> --- a/arch/arm/boot/dts/bcm283x.dtsi
>> +++ b/arch/arm/boot/dts/bcm283x.dtsi
>> @@ -186,6 +186,12 @@
>> interrupts = <2 14>; /* pwa1 */
>> };
>>
>> + thermal: thermal at 0x7e212000 {
>> + compatible = "brcm,bcm2835-thermal";
>> + reg = <0x7e212000 0x8>;
>> + clocks = <&clocks BCM2835_CLOCK_TSENS>;
>> + };
>> +
>
> Since the driver handles 3 different SoC (2835, 2836, 2837). This node
> should be defined in the SoC specific dtsi files, because the BCM2836
> includes bcm283x.dtsi too.
>
> Be aware the patch for bcm2837 must go to ARM64.
I can not really follow:
* the node is defined in the dtsi included by all 3 soc,
and it is available on all so it sits where for example
spi0 or uart0 is located
* as for arm64: this describes the registers that are
identical for arm and arm64 and the bcm2837.dtsi
is also including ../../../../arm/boot/dts/bcm283x.dtsi
So what is the problem?
Martin
P.s the patches apply cleanly against master.
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