Re: [PATCH v2 1/2] arm64: dts: qcom: pm8998: Add spmi-temp-alarm node

2018-07-02 Thread Doug Anderson
Hi,

On Mon, Jul 2, 2018 at 1:51 PM, Matthias Kaehlcke  wrote:
>> > +   compatible = "qcom,spmi-temp-alarm";
>> > +   reg = <0x2400 0x100>;
>>
>> Why are there two numbers for the "reg"?  Should just be 0x2400.
>
> From /Documentation/devicetree/bindings/thermal/qcom-spmi-temp-alarm.txt:
>
> Required properties:
> ...
> - reg: Specifies the SPMI address and length of the controller's
>registers.

Hrm, something isn't adding up here.

A) Do a "git grep" and you'll see that nobody else has the length.

$ git grep -C2 -- qcom,spmi-temp-alarm | grep reg

arch/arm/boot/dts/qcom-pm8841.dtsi- reg = <0x2400>;
arch/arm/boot/dts/qcom-pm8941.dtsi- reg = <0x2400>;
arch/arm/boot/dts/qcom-pma8084.dtsi-reg = <0x2400>;
arch/arm64/boot/dts/qcom/pm8916.dtsi-   reg = <0x2400>;

---

B) The SPMI bus you're adding it to has "#size-cells = <0>;"  ...as do
all other SPMI busses:

$ git grep -C5 qcom,spmi-pmic | grep size-cells
arch/arm/boot/dts/qcom-pm8841.dtsi- #size-cells = <0>;
arch/arm/boot/dts/qcom-pm8841.dtsi- #size-cells = <0>;
arch/arm/boot/dts/qcom-pm8941.dtsi- #size-cells = <0>;
arch/arm/boot/dts/qcom-pm8941.dtsi- #size-cells = <0>;
arch/arm/boot/dts/qcom-pma8084.dtsi-#size-cells = <0>;
arch/arm/boot/dts/qcom-pma8084.dtsi-#size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8004.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8004.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8005.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8005.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8916.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8916.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8994.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8994.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8998.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pm8998.dtsi-   #size-cells = <0>;
arch/arm64/boot/dts/qcom/pmi8994.dtsi-  #size-cells = <0>;
arch/arm64/boot/dts/qcom/pmi8994.dtsi-  #size-cells = <0>;

...I have no SPMI history, but my guess is that upstream dropped this
because all SPMI devices have 256-byte regions (see
qcom,spmi-pmic.txt)?


So probably the right thing is to fix the qcom,spmi-temp-alarm not to
have the size...

-Doug


Re: [PATCH v2 1/2] arm64: dts: qcom: pm8998: Add spmi-temp-alarm node

2018-07-02 Thread Matthias Kaehlcke
On Mon, Jul 02, 2018 at 01:12:01PM -0700, Doug Anderson wrote:
> Hi,
> 
> On Mon, Jul 2, 2018 at 11:10 AM, Matthias Kaehlcke  wrote:
> > This adds the spmi-temp-alarm node to pm8998 based on the examples in the
> > bindings.
> >
> > Signed-off-by: Matthias Kaehlcke 
> > ---
> > Changes in v2:
> > - none
> >
> >  arch/arm64/boot/dts/qcom/pm8998.dtsi | 7 +++
> >  1 file changed, 7 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi 
> > b/arch/arm64/boot/dts/qcom/pm8998.dtsi
> > index 92bed1e7d4bb..2f4989e7ef68 100644
> > --- a/arch/arm64/boot/dts/qcom/pm8998.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi
> > @@ -11,6 +11,13 @@
> > #address-cells = <1>;
> > #size-cells = <0>;
> >
> > +   pm8998_temp: qcom,temp-alarm@2400 {
> 
> Remove "qcom," from the node name (AKA please change to
> "temp-alarm@2400").  Someone internal in Qualcomm seems to have
> started this trend so you see it on all downstream kernels, but
> upstream device tree isn't supposed to have it.

Ok, thanks

> > +   compatible = "qcom,spmi-temp-alarm";
> > +   reg = <0x2400 0x100>;
> 
> Why are there two numbers for the "reg"?  Should just be 0x2400.

>From /Documentation/devicetree/bindings/thermal/qcom-spmi-temp-alarm.txt:

Required properties:
...
- reg: Specifies the SPMI address and length of the controller's
   registers.


Re: [PATCH v2 1/2] arm64: dts: qcom: pm8998: Add spmi-temp-alarm node

2018-07-02 Thread Doug Anderson
Hi,

On Mon, Jul 2, 2018 at 11:10 AM, Matthias Kaehlcke  wrote:
> This adds the spmi-temp-alarm node to pm8998 based on the examples in the
> bindings.
>
> Signed-off-by: Matthias Kaehlcke 
> ---
> Changes in v2:
> - none
>
>  arch/arm64/boot/dts/qcom/pm8998.dtsi | 7 +++
>  1 file changed, 7 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi 
> b/arch/arm64/boot/dts/qcom/pm8998.dtsi
> index 92bed1e7d4bb..2f4989e7ef68 100644
> --- a/arch/arm64/boot/dts/qcom/pm8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi
> @@ -11,6 +11,13 @@
> #address-cells = <1>;
> #size-cells = <0>;
>
> +   pm8998_temp: qcom,temp-alarm@2400 {

Remove "qcom," from the node name (AKA please change to
"temp-alarm@2400").  Someone internal in Qualcomm seems to have
started this trend so you see it on all downstream kernels, but
upstream device tree isn't supposed to have it.


> +   compatible = "qcom,spmi-temp-alarm";
> +   reg = <0x2400 0x100>;

Why are there two numbers for the "reg"?  Should just be 0x2400.


-Doug


[PATCH v2 1/2] arm64: dts: qcom: pm8998: Add spmi-temp-alarm node

2018-07-02 Thread Matthias Kaehlcke
This adds the spmi-temp-alarm node to pm8998 based on the examples in the
bindings.

Signed-off-by: Matthias Kaehlcke 
---
Changes in v2:
- none

 arch/arm64/boot/dts/qcom/pm8998.dtsi | 7 +++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/pm8998.dtsi 
b/arch/arm64/boot/dts/qcom/pm8998.dtsi
index 92bed1e7d4bb..2f4989e7ef68 100644
--- a/arch/arm64/boot/dts/qcom/pm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8998.dtsi
@@ -11,6 +11,13 @@
#address-cells = <1>;
#size-cells = <0>;
 
+   pm8998_temp: qcom,temp-alarm@2400 {
+   compatible = "qcom,spmi-temp-alarm";
+   reg = <0x2400 0x100>;
+   interrupts = <0x0 0x24 0x0 IRQ_TYPE_EDGE_RISING>;
+   #thermal-sensor-cells = <0>;
+   };
+
pm8998_gpio: gpios@c000 {
compatible = "qcom,pm8998-gpio", "qcom,spmi-gpio";
reg = <0xc000>;
-- 
2.18.0.399.gad0ab374a1-goog