RK3576 NPU (RKNN) support + enable on Flipper One

.clang-format

@@ -167,7 +167,7 @@ ForEachMacros:
   - 'drm_connector_for_each_possible_encoder'
   - 'drm_exec_for_each_locked_object'
   - 'drm_exec_for_each_locked_object_reverse'
-  - 'drm_for_each_bridge_in_chain_scoped'
+  - 'drm_for_each_bridge_in_chain'
   - 'drm_for_each_connector_iter'
   - 'drm_for_each_crtc'
   - 'drm_for_each_crtc_reverse'

Documentation/ABI/testing/sysfs-driver-flipper-one-mcu

@@ -0,0 +1,33 @@
+What:		/sys/bus/i2c/devices/<mcu_device>/cpustate
+Date:		July 2026
+KernelVersion:	7.1
+Contact:	Alexey Charkov <alchark@flipper.net>
+Description:	(RW) Reports the CPU/system power state to the Flipper One MCU
+		so it can present meaningful on-device feedback to the user.
+
+		Reading returns the last logical state name known to the driver.
+
+		Writing lets userspace announce transitions that the kernel
+		cannot observe on its own. Only the following values are
+		accepted; any other value returns -EINVAL:
+
+		 - ``online``: boot is complete and userspace is up. This is a
+		   sticky state and is restored automatically after resuming
+		   from suspend.
+		 - ``suspend-request``: userspace is preparing to suspend (for
+		   example, running its pre-suspend hooks). Announced before the
+		   kernel actually enters suspend.
+		 - ``reboot-request``: userspace has begun a reboot and is
+		   stopping services. Announced before the kernel starts its
+		   own shutdown sequence.
+		 - ``poweroff-request``: userspace has begun a power-off and is
+		   stopping services. Announced before the kernel starts its
+		   own shutdown sequence.
+
+		The ``*-request`` states are transient announcements and are not
+		restored after resume.
+
+		Other states (bootloader, kernel-init, suspend, shutting-down,
+		powered-off) are managed by the kernel and cannot be written.
+
+		Format: %s.

Documentation/devicetree/bindings/arm/rockchip.yaml

@@ -299,6 +299,16 @@ properties:
           - const: firefly,rk3568-roc-pc
           - const: rockchip,rk3568
 
+      - description: Flipper One rev. F0B0C1
+        items:
+          - const: flipper,one-rev-f0b0c1
+          - const: rockchip,rk3576
+
+      - description: Flipper One rev. F0B1C2
+        items:
+          - const: flipper,one-rev-f0b1c2
+          - const: rockchip,rk3576
+
       - description: Forlinx FET3588-C SoM
         items:
           - enum:

Documentation/devicetree/bindings/display/flipper,one-display.yaml

@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/flipper,one-display.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Flipper One display
+
+maintainers:
+  - Alexey Charkov <alchark@flipper.net>
+
+description:
+  Flipper One is a handheld network multi-tool, which includes a custom
+  grayscale LCD panel driven by an MCU accepting image contents over a SPI bus.
+  The image data must consist of a full frame in each transmission, signalled
+  by the "active" GPIO line. One byte per pixel is used, with 0 representing
+  black and 255 white, lower two bits are discarded, and the expected frame
+  size is 258x144 pixels of which the leftmost 256x144 are visible.
+
+  The MCU expects SPI mode 3 (CPOL=1, CPHA=1), up to 24MHz frequency.
+
+allOf:
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+  compatible:
+    enum:
+      - flipper,one-display
+
+  reg:
+    maxItems: 1
+
+  spi-cpha: true
+  spi-cpol: true
+
+  spi-max-frequency:
+    maximum: 24000000
+
+  active-gpios:
+    maxItems: 1
+    description: Frame data is being transmitted when this line is asserted.
+      Deassert to signal the end of frame.
+
+required:
+  - compatible
+  - reg
+  - active-gpios
+  - spi-max-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        display@0 {
+            compatible = "flipper,one-display";
+            reg = <0>;
+            active-gpios = <&gpio4 6 GPIO_ACTIVE_LOW>;
+            spi-max-frequency = <20000000>;
+            spi-cpha;
+            spi-cpol;
+            spi-rx-bus-width = <0>;
+        };
+    };
+...

Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml

@@ -25,7 +25,7 @@ description: |
   * Supports up to 8/10 bits per color component
   * Supports RBG, YCbCr4:4:4, YCbCr4:2:2, YCbCr4:2:0
   * Pixel clock up to 594MHz
-  * I2S, SPDIF audio interface
+  * I2S, S/PDIF audio interface
 
 properties:
   compatible:
@@ -46,7 +46,7 @@ properties:
       - description: DisplayPort AUX clock
       - description: HDCP clock
       - description: I2S interface clock
-      - description: SPDIF interfce clock
+      - description: S/PDIF interfce clock
 
   clock-names:
     minItems: 3
@@ -83,7 +83,8 @@ properties:
     maxItems: 1
 
   "#sound-dai-cells":
-    const: 0
+    const: 1
+    description: 0 for I2S, 1 for S/PDIF
 
 required:
   - compatible
@@ -144,7 +145,7 @@ examples:
         resets = <&cru SRST_DP0>;
         phys = <&usbdp_phy0 PHY_TYPE_DP>;
         power-domains = <&power RK3588_PD_VO0>;
-        #sound-dai-cells = <0>;
+        #sound-dai-cells = <1>;
 
         ports {
           #address-cells = <1>;

Documentation/devicetree/bindings/display/rockchip/rockchip-vop2.yaml

@@ -82,6 +82,26 @@ properties:
       - {}
       - {}
 
+  resets:
+    minItems: 5
+    items:
+      - description: AXI clock reset.
+      - description: AHB clock reset.
+      - description: Pixel clock reset for video port 0.
+      - description: Pixel clock reset for video port 1.
+      - description: Pixel clock reset for video port 2.
+      - description: Pixel clock reset for video port 3.
+
+  reset-names:
+    minItems: 5
+    items:
+      - const: aclk
+      - const: hclk
+      - const: dclk_vp0
+      - const: dclk_vp1
+      - const: dclk_vp2
+      - const: dclk_vp3
+
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
@@ -153,6 +173,12 @@ allOf:
 
         interrupt-names: false
 
+        resets:
+          maxItems: 5
+
+        reset-names:
+          maxItems: 5
+
         ports:
           required:
             - port@0
@@ -200,6 +226,12 @@ allOf:
         interrupt-names:
           minItems: 4
 
+        resets:
+          maxItems: 5
+
+        reset-names:
+          maxItems: 5
+
         ports:
           required:
             - port@0
@@ -251,6 +283,12 @@ allOf:
 
         interrupt-names: false
 
+        resets:
+          minItems: 6
+
+        reset-names:
+          minItems: 6
+
         ports:
           required:
             - port@0
@@ -289,6 +327,16 @@ examples:
                               "dclk_vp0",
                               "dclk_vp1",
                               "dclk_vp2";
+                resets = <&cru SRST_A_VOP>,
+                         <&cru SRST_H_VOP>,
+                         <&cru SRST_VOP0>,
+                         <&cru SRST_VOP1>,
+                         <&cru SRST_VOP2>;
+                reset-names = "aclk",
+                              "hclk",
+                              "dclk_vp0",
+                              "dclk_vp1",
+                              "dclk_vp2";
                 power-domains = <&power RK3568_PD_VO>;
                 rockchip,grf = <&grf>;
                 iommus = <&vop_mmu>;

Documentation/devicetree/bindings/hwmon/ti,ina4230.yaml

@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwmon/ti,ina4230.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments INA4230 quad-channel power monitors
+
+maintainers:
+  - Alexey Charkov <alchark@flipper.net>
+
+description: |
+  The INA4230 is a 48V quad-channel 16-bit current, voltage, power and energy
+  monitor with an I2C interface.
+
+  Datasheet:
+    https://www.ti.com/product/INA4230
+
+properties:
+  compatible:
+    enum:
+      - ti,ina4230
+
+  reg:
+    maxItems: 1
+
+  "#address-cells":
+    description: Required only if a child node is present.
+    const: 1
+
+  "#size-cells":
+    description: Required only if a child node is present.
+    const: 0
+
+  vs-supply:
+    description: phandle to the regulator that provides the VS supply typically
+      in range from 1.7 V to 5.5 V.
+
+  ti,alert-polarity-active-high:
+    description: Alert pin is asserted based on the value of Alert polarity Bit
+      of the CONFIG2 register. Default value is 0, for which the alert pin
+      toggles from high to low during faults. When this property is set, the
+      corresponding register bit is set to 1, and the alert pin toggles from
+      low to high during faults.
+    $ref: /schemas/types.yaml#/definitions/flag
+
+patternProperties:
+  "^input@[0-3]$":
+    description: The node contains optional child nodes for four channels.
+      Each child node describes the information of input source. Input channels
+      default to enabled in the chip. Unless channels are explicitly disabled
+      in device-tree, input channels will be enabled.
+    type: object
+    additionalProperties: false
+    properties:
+      reg:
+        description: Must be 0, 1, 2 or 3, corresponding to the IN1, IN2, IN3
+          or IN4 ports of the INA4230, respectively.
+        enum: [ 0, 1, 2, 3 ]
+
+      label:
+        description: name of the input source
+
+      shunt-resistor-micro-ohms:
+        description: shunt resistor value in micro-Ohm
+
+      ti,maximum-expected-current-microamp:
+        description: |
+          This value indicates the maximum current in microamps that you can
+          expect to measure with ina4230 in your circuit.
+
+          This value will be used to calculate the Current_LSB to maximize the
+          available precision while ensuring your expected maximum current fits
+          within the chip's ADC range. It will also enable built-in shunt gain
+          to increase ADC granularity by a factor of 4 if the provided maximum
+          current / shunt resistance combination does not produce more than
+          20.48 mV drop at the shunt.
+        minimum: 32768
+        maximum: 4294967295
+        default: 32768000
+
+    required:
+      - reg
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: hwmon-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        power-sensor@44 {
+            compatible = "ti,ina4230";
+            reg = <0x44>;
+            vs-supply = <&vdd_3v0>;
+            ti,alert-polarity-active-high;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            input@0 {
+                reg = <0x0>;
+                /*
+                 * Input channels are enabled by default in the device and so
+                 * to disable, must be explicitly disabled in device-tree.
+                 */
+                status = "disabled";
+            };
+
+            input@1 {
+                reg = <0x1>;
+                shunt-resistor-micro-ohms = <50000>;
+                ti,maximum-expected-current-microamp = <300000>;
+            };
+
+            input@2 {
+                reg = <0x2>;
+                label = "VDD_5V";
+                shunt-resistor-micro-ohms = <10000>;
+                ti,maximum-expected-current-microamp = <5000000>;
+            };
+
+            input@3 {
+                reg = <0x3>;
+            };
+        };
+    };

Documentation/devicetree/bindings/input/adc-keys.yaml

@@ -42,6 +42,9 @@ patternProperties:
 
       linux,code: true
 
+      linux,input-type:
+        default: 1  # EV_KEY
+
       press-threshold-microvolt:
         description:
           Voltage above or equal to which this key is considered pressed. No