[PATCH v2 0/2] arm64: dts: allwinner: H616: Add LRADC

[PATCH v2 0/2] arm64: dts: allwinner: H616: Add LRADC

[James McGregor]

Version 2 moves the LRADC DT node to the right place. It was out of
order before.

The Allwinner H616 series of SoCs have a low-rate ADC (LRADC) with
6-bit resolution and one input channel. They're compatible with the
existing drivers, so it only needs to be enabled in the DT.

Add an LRADC node to the H616 .dtsi, so board DTs can use them by
adding 'status = "okay";'.

This was tested on an OrangePi Zero 2W by attaching an expansion board
with two key buttons connected to the LRADC, and adding them to the DT.
/dev/input/event0 then properly reported the button presses. The patches
are based off sunxi/for-next.

James McGregor (2):
  dt-bindings: input: sun4i-lradc-keys: Add H616 compatible
  ARM: dts: sun50i: Add LRADC node

 .../bindings/input/allwinner,sun4i-a10-lradc-keys.yaml |  4 +++-
 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi         | 10 ++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

-- 
2.34.1



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[PATCH v2 1/2] dt-bindings: input: sun4i-lradc-keys: Add H616 compatible

[James McGregor]

The Allwinner H616 SoC has an LRADC which is compatible with the
versions in existing SoCs.
Add a compatible string for H616, with the R329 fallback. This is the
same as the D1, so put them into an enum.

Signed-off-by: James McGregor <jamcgregor@protonmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
 .../bindings/input/allwinner,sun4i-a10-lradc-keys.yaml        | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
index c384bf0bb25d..6bdb8040be65 100644
--- a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
+++ b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml
@@ -22,7 +22,9 @@ properties:
           - const: allwinner,sun8i-a83t-r-lradc
       - const: allwinner,sun50i-r329-lradc
       - items:
-          - const: allwinner,sun20i-d1-lradc
+          - enum:
+              - allwinner,sun50i-h616-lradc
+              - allwinner,sun20i-d1-lradc
           - const: allwinner,sun50i-r329-lradc
 
   reg:
-- 
2.34.1



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Re: [PATCH v2 1/2] dt-bindings: input: sun4i-lradc-keys: Add H616 compatible

[Rob Herring]

On Fri, 26 Apr 2024 09:29:41 +0000, James McGregor wrote:
> The Allwinner H616 SoC has an LRADC which is compatible with the
> versions in existing SoCs.
> Add a compatible string for H616, with the R329 fallback. This is the
> same as the D1, so put them into an enum.
> 
> Signed-off-by: James McGregor <jamcgregor@protonmail.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  .../bindings/input/allwinner,sun4i-a10-lradc-keys.yaml        | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 


Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.

Missing tags:

Acked-by: Rob Herring (Arm) <robh@kernel.org>




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[PATCH v2 2/2] ARM: dts: sun50i: Add LRADC node

[James McGregor]

Add a DT node for the Allwinner H616 LRADC describing the base address,
interrupt, reset and clock gates.

Signed-off-by: James McGregor <jamcgregor@protonmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
---
V1 -> V2: Moved DT node to correct place in tree order

 arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index a061b69c07c2..1e8538ca7db0 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -594,6 +594,16 @@ ths: thermal-sensor@5070400 {
 			#thermal-sensor-cells = <1>;
 		};
 
+		lradc: lradc@5070800 {
+			compatible = "allwinner,sun50i-h616-lradc",
+				     "allwinner,sun50i-r329-lradc";
+			reg = <0x05070800 0x400>;
+			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_KEYADC>;
+			resets = <&ccu RST_BUS_KEYADC>;
+			status = "disabled";
+		};
+
 		usbotg: usb@5100000 {
 			compatible = "allwinner,sun50i-h616-musb",
 				     "allwinner,sun8i-h3-musb";
-- 
2.34.1



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Re: [PATCH v2 2/2] ARM: dts: sun50i: Add LRADC node

[Jernej Škrabec]

Dne petek, 26. april 2024 ob 11:29:48 GMT +2 je James McGregor napisal(a):
> Add a DT node for the Allwinner H616 LRADC describing the base address,
> interrupt, reset and clock gates.
> 
> Signed-off-by: James McGregor <jamcgregor@protonmail.com>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>

Reviewed-by: Jernej Škrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

> ---
> V1 -> V2: Moved DT node to correct place in tree order
> 
>  arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> index a061b69c07c2..1e8538ca7db0 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
> @@ -594,6 +594,16 @@ ths: thermal-sensor@5070400 {
>  			#thermal-sensor-cells = <1>;
>  		};
>  
> +		lradc: lradc@5070800 {
> +			compatible = "allwinner,sun50i-h616-lradc",
> +				     "allwinner,sun50i-r329-lradc";
> +			reg = <0x05070800 0x400>;
> +			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_KEYADC>;
> +			resets = <&ccu RST_BUS_KEYADC>;
> +			status = "disabled";
> +		};
> +
>  		usbotg: usb@5100000 {
>  			compatible = "allwinner,sun50i-h616-musb",
>  				     "allwinner,sun8i-h3-musb";
> 





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Re: [PATCH v2 0/2] arm64: dts: allwinner: H616: Add LRADC

[Chen-Yu Tsai]

On Fri, 26 Apr 2024 09:29:37 +0000, James McGregor wrote:
> Version 2 moves the LRADC DT node to the right place. It was out of
> order before.
> 
> The Allwinner H616 series of SoCs have a low-rate ADC (LRADC) with
> 6-bit resolution and one input channel. They're compatible with the
> existing drivers, so it only needs to be enabled in the DT.
> 
> [...]

Applied to sunxi/dt-for-6.11 in sunxi/linux.git, thanks!

[1/2] dt-bindings: input: sun4i-lradc-keys: Add H616 compatible
      https://git.kernel.org/sunxi/linux/c/3086803a1f43
[2/2] ARM: dts: sun50i: Add LRADC node
      https://git.kernel.org/sunxi/linux/c/7adc2d68f4a6

Best regards,
-- 
Chen-Yu Tsai <wens@csie.org>


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Re: [PATCH v2 0/2] arm64: dts: allwinner: H616: Add LRADC

[Chen-Yu Tsai]

On Tue, May 28, 2024 at 11:42 PM Chen-Yu Tsai <wens@csie.org> wrote:
>
> On Fri, 26 Apr 2024 09:29:37 +0000, James McGregor wrote:
> > Version 2 moves the LRADC DT node to the right place. It was out of
> > order before.
> >
> > The Allwinner H616 series of SoCs have a low-rate ADC (LRADC) with
> > 6-bit resolution and one input channel. They're compatible with the
> > existing drivers, so it only needs to be enabled in the DT.
> >
> > [...]
>
> Applied to sunxi/dt-for-6.11 in sunxi/linux.git, thanks!
>
> [1/2] dt-bindings: input: sun4i-lradc-keys: Add H616 compatible
>       https://git.kernel.org/sunxi/linux/c/3086803a1f43
> [2/2] ARM: dts: sun50i: Add LRADC node
>       https://git.kernel.org/sunxi/linux/c/7adc2d68f4a6

I had to do a quick rebase as the branch start point was incorrect. The
commit hashes will have changed. Rest assured that the patch is indeed
merged.


ChenYu

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