[PATCH v4 0/4] media: rc: sunxi-cir: support the A523/H728/T527 IR receiver

[PATCH v4 0/4] media: rc: sunxi-cir: support the A523/H728/T527 IR receiver

[Justin Suess]

Hi,

This series adds support for the CIR receiver on the Allwinner
A523/T527/H728 family (sun55i).

Apologies for the hasty v3 respin.

Tested again on my X96Q Pro+ (H728) TV box with the Google TV remote that
came in the box (using NEC keymap). Was able to press buttons and
get readings from lirc / ir-keytable again.

Changes since v3:
- 1/4: picked up Krzysztof's Acked-by, no other changes
- 2/4: add /omit-if-no-ref/ and rename the PL11 node to
  r-ir-rx-pl-pin (Chen-Yu)
- 2/4: take the PI8 pinmux node from Andre's Avaota patch, named
  ir-rx-pi-pin (Chen-Yu). Added Co-developed-by for Andre, and
  his Reviewed-by is dropped, as the patch gained a hunk and a
  node rename.
- 4/4: drop the moved hunk. Andre stays the author, with a
  bracketed note for the move and my Signed-off-by added
  (Chen-Yu, Andre)

Based on v7.2-rc1.

v3: https://lore.kernel.org/linux-sunxi/20260722233604.3001063-1-utilityemal77@gmail.com/
v2: https://lore.kernel.org/linux-sunxi/20260722201717.2205609-1-utilityemal77@gmail.com/
v1: https://lore.kernel.org/linux-sunxi/20260702214750.3428694-1-utilityemal77@gmail.com/

Andre Przywara (1):
  arm64: dts: allwinner: a523: enable IR on the Avaota A1

Justin Suess (3):
  media: dt-bindings: allwinner,sun4i-a10-ir: add A523 compatible
  arm64: dts: allwinner: a523: add IR receiver nodes
  arm64: dts: allwinner: a523: enable IR receiver on the X96Q Pro+

 .../media/allwinner,sun4i-a10-ir.yaml         |  8 +++--
 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 36 +++++++++++++++++++
 .../dts/allwinner/sun55i-h728-x96qpro+.dts    |  6 ++++
 .../dts/allwinner/sun55i-t527-avaota-a1.dts   |  6 ++++
 4 files changed, 53 insertions(+), 3 deletions(-)


base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
-- 
2.54.0

[PATCH v4 1/4] media: dt-bindings: allwinner,sun4i-a10-ir: add A523 compatible

[Justin Suess]

The A523 (sun55i) contains a newer revision of the sunxi CIR receiver.
The reset defaults match the fixed behaviour of the older IP, so the
device works fine when driven as an A31 CIR receiver.

Add the A523 compatible, with allwinner,sun6i-a31-ir as the fallback.

While at it, merge the standalone compatible entries into a single
enum.

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Justin Suess <utilityemal77@gmail.com>
---
 .../devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
index 42dfe22ad5f1..18b28feacf83 100644
--- a/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
+++ b/Documentation/devicetree/bindings/media/allwinner,sun4i-a10-ir.yaml
@@ -16,9 +16,10 @@ allOf:
 properties:
   compatible:
     oneOf:
-      - const: allwinner,sun4i-a10-ir
-      - const: allwinner,sun5i-a13-ir
-      - const: allwinner,sun6i-a31-ir
+      - enum:
+          - allwinner,sun4i-a10-ir
+          - allwinner,sun5i-a13-ir
+          - allwinner,sun6i-a31-ir
       - items:
           - enum:
               - allwinner,suniv-f1c100s-ir
@@ -27,6 +28,7 @@ properties:
               - allwinner,sun50i-a64-ir
               - allwinner,sun50i-h6-ir
               - allwinner,sun50i-h616-ir
+              - allwinner,sun55i-a523-ir
           - const: allwinner,sun6i-a31-ir
 
   reg:
-- 
2.54.0

[PATCH v4 2/4] arm64: dts: allwinner: a523: add IR receiver nodes

[Justin Suess]

The A523 has two CIR receivers, both compatible with the A31 CIR: one
in the CPUX domain, clocked from the main CCU, and one in the RTC
power domain, clocked from the R-CCU.

The RTC domain instance's RX signal is typically muxed to PL11, as on
the X96Q Pro+. The CPUX instance's can be muxed to PI8, which is what
the Avaota A1 uses.

Add nodes for both instances, disabled by default. Since the RX signal
of each instance can be routed to more than one pin, boards with an IR
receiver are expected to add the pinctrl properties next to where they
enable the node.

Add pinmux nodes for both pins: PL11 for the RTC domain instance, and
PI8 for the CPUX one.

Co-developed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Justin Suess <utilityemal77@gmail.com>
---

Notes:

v4:
    - add /omit-if-no-ref/ and rename to r-ir-rx-pl-pin (Chen-Yu)
    - take the PI8 pinmux node from Andre's Avaota patch, named
      ir-rx-pi-pin (Chen-Yu); Co-developed-by added and Andre's
      Reviewed-by dropped, since the patch has a new hunk plus
      pinmux node name change.

 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index ca6a16807049..f0b74693da7f 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -155,6 +155,13 @@ i2s2_pi_pins: i2s2-pi-pins {
 				bias-disable;
 			};
 
+			/omit-if-no-ref/
+			ir_rx_pin: ir-rx-pi-pin {
+				pins = "PI8";
+				allwinner,pinmux = <3>;
+				function = "cir_rx";
+			};
+
 			/omit-if-no-ref/
 			ledc_ph_pin: ledc-ph-pin {
 				pins = "PH19";
@@ -327,6 +334,17 @@ ccu: clock-controller@2001000 {
 			#reset-cells = <1>;
 		};
 
+		ir: ir@2005000 {
+			compatible = "allwinner,sun55i-a523-ir",
+				     "allwinner,sun6i-a31-ir";
+			reg = <0x02005000 0x400>;
+			interrupts = <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_IR_RX>, <&ccu CLK_IR_RX>;
+			clock-names = "apb", "ir";
+			resets = <&ccu RST_BUS_IR_RX>;
+			status = "disabled";
+		};
+
 		ledc: led-controller@2008000 {
 			compatible = "allwinner,sun55i-a523-ledc",
 				     "allwinner,sun50i-a100-ledc";
@@ -927,6 +945,24 @@ r_i2c_pins: r-i2c-pins {
 				allwinner,pinmux = <2>;
 				function = "r_i2c0";
 			};
+
+			/omit-if-no-ref/
+			r_ir_rx_pin: r-ir-rx-pl-pin {
+				pins = "PL11";
+				allwinner,pinmux = <2>;
+				function = "s_cir_rx";
+			};
+		};
+
+		r_ir: ir@7040000 {
+			compatible = "allwinner,sun55i-a523-ir",
+				     "allwinner,sun6i-a31-ir";
+			reg = <0x07040000 0x400>;
+			interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&r_ccu CLK_BUS_R_IR_RX>, <&r_ccu CLK_R_IR_RX>;
+			clock-names = "apb", "ir";
+			resets = <&r_ccu RST_BUS_R_IR_RX>;
+			status = "disabled";
 		};
 
 		pck600: power-controller@7060000 {
-- 
2.54.0

[PATCH v4 3/4] arm64: dts: allwinner: a523: enable IR receiver on the X96Q Pro+

[Justin Suess]

The X96Q Pro+ TV box has an IR receiver window on the front panel,
wired to the SoC CIR input on PL11.

Enable the CIR receiver in the RTC power domain and mux its RX
signal to PL11.

Tested on an X96Q Pro+ with ir-keytable and nec keybindings with
the remote that it came with in the box.

Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Justin Suess <utilityemal77@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts b/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
index a96927fbdadd..1eaee20acaab 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-h728-x96qpro+.dts
@@ -266,6 +266,12 @@ reg_dcdc3_323: dcdc3 {
 	};
 };
 
+&r_ir {
+	pinctrl-names = "default";
+	pinctrl-0 = <&r_ir_rx_pin>;
+	status = "okay";
+};
+
 &r_pio {
 /*
  * Specifying the supply would create a circular dependency.
-- 
2.54.0

[PATCH v4 4/4] arm64: dts: allwinner: a523: enable IR on the Avaota A1

[Justin Suess]

From: Andre Przywara <andre.przywara@arm.com>

The Avaota A1 board has an IR receiver chip on the PCB (next to the
Ethernet jacks), wired to the PI8 pin on the SoC.

Enable the CIR receiver in the main power domain.

Tested on the board with evtest and some random TV remote control.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
[justin: move the PI8 pinmux node into the dtsi patch]
Signed-off-by: Justin Suess <utilityemal77@gmail.com>
---

Notes:

v4:
    - move the PI8 pinmux node into the dtsi patch (Chen-Yu)
    - add my Signed-off-by (Chen-Yu, Andre)

 arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
index 474354fbfcec..994f1e4f0ce7 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-t527-avaota-a1.dts
@@ -100,6 +100,12 @@ &gpu {
 	status = "okay";
 };
 
+&ir {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ir_rx_pin>;
+	status = "okay";
+};
+
 &ledc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&ledc_ph_pin>;
-- 
2.54.0

Re: [PATCH v4 0/4] media: rc: sunxi-cir: support the A523/H728/T527 IR receiver

[Chen-Yu Tsai]

On Mon, 27 Jul 2026 22:49:12 -0400, Justin Suess wrote:
> This series adds support for the CIR receiver on the Allwinner
> A523/T527/H728 family (sun55i).
> 
> Apologies for the hasty v3 respin.
> 
> Tested again on my X96Q Pro+ (H728) TV box with the Google TV remote that
> came in the box (using NEC keymap). Was able to press buttons and
> get readings from lirc / ir-keytable again.
> 
> [...]

Applied to sunxi/dt-for-7.3 in sunxi, thanks!

[1/4] media: dt-bindings: allwinner,sun4i-a10-ir: add A523 compatible
      https://git.kernel.org/sunxi/linux/c/96cd41eac1f5
[2/4] arm64: dts: allwinner: a523: add IR receiver nodes
      https://git.kernel.org/sunxi/linux/c/2b24f5386528
[3/4] arm64: dts: allwinner: a523: enable IR receiver on the X96Q Pro+
      https://git.kernel.org/sunxi/linux/c/a3bd47e62cb2
[4/4] arm64: dts: allwinner: a523: enable IR on the Avaota A1
      https://git.kernel.org/sunxi/linux/c/75dc83d420aa

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