[v2] ARM: dts: qcom: pm8226: add node for RTC

[PATCH v2] ARM: dts: qcom: pm8226: add node for RTC

Posted by Jack Matthews 4 years, 4 months ago

Add a node for PM8226's real time clock.

Signed-off-by: Jack Matthews <jm5112356@gmail.com>
---
 arch/arm/boot/dts/qcom-pm8226.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-pm8226.dtsi b/arch/arm/boot/dts/qcom-pm8226.dtsi
index 872724490a5d..8ee628ce88a9 100644
--- a/arch/arm/boot/dts/qcom-pm8226.dtsi
+++ b/arch/arm/boot/dts/qcom-pm8226.dtsi
@@ -73,6 +73,13 @@ adc-chan@f {
 			};
 		};
 
+		rtc@6000 {
+			compatible = "qcom,pm8941-rtc";
+			reg = <0x6000>, <0x6100>;
+			reg-names = "rtc", "alarm";
+			interrupts = <0x0 0x61 0x1 IRQ_TYPE_EDGE_RISING>;
+		};
+
 		pm8226_mpps: mpps@a000 {
 			compatible = "qcom,pm8226-mpp", "qcom,spmi-mpp";
 			reg = <0xa000>;
-- 
2.25.1

Re: [PATCH v2] ARM: dts: qcom: pm8226: add node for RTC

Posted by Luca Weiss 4 years, 2 months ago

On Mittwoch, 9. Februar 2022 17:57:41 CEST Jack Matthews wrote:
> Add a node for PM8226's real time clock.
> 
> Signed-off-by: Jack Matthews <jm5112356@gmail.com>

Reviewed-by: Luca Weiss <luca@z3ntu.xyz>

Also on lg-lenok at least "allow-set-time;" seems to allow writing to the RTC. 
As I'm quite unsure of the reasoning of it normally being read-only and the 
implementation details behind what might restrict this I don't think we can 
safely add this to all pm8226.

Regards
Luca

> ---
>  arch/arm/boot/dts/qcom-pm8226.dtsi | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/qcom-pm8226.dtsi
> b/arch/arm/boot/dts/qcom-pm8226.dtsi index 872724490a5d..8ee628ce88a9
> 100644
> --- a/arch/arm/boot/dts/qcom-pm8226.dtsi
> +++ b/arch/arm/boot/dts/qcom-pm8226.dtsi
> @@ -73,6 +73,13 @@ adc-chan@f {
>  			};
>  		};
> 
> +		rtc@6000 {
> +			compatible = "qcom,pm8941-rtc";
> +			reg = <0x6000>, <0x6100>;
> +			reg-names = "rtc", "alarm";
> +			interrupts = <0x0 0x61 0x1 
IRQ_TYPE_EDGE_RISING>;
> +		};
> +
>  		pm8226_mpps: mpps@a000 {
>  			compatible = "qcom,pm8226-mpp", "qcom,spmi-
mpp";
>  			reg = <0xa000>;