From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/iio/adc/amlogic,meson-saradc.yaml     | 148 +++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml

(limited to 'Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml')

diff --git a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml
new file mode 100644
index 0000000000..7e8328e9ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.yaml
@@ -0,0 +1,148 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/amlogic,meson-saradc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson SAR (Successive Approximation Register) A/D converter
+
+maintainers:
+  - Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+
+description:
+  Binding covers a range of ADCs found on Amlogic Meson SoCs.
+
+properties:
+  compatible:
+    oneOf:
+      - const: amlogic,meson-saradc
+      - items:
+          - enum:
+              - amlogic,meson8-saradc
+              - amlogic,meson8b-saradc
+              - amlogic,meson8m2-saradc
+              - amlogic,meson-gxbb-saradc
+              - amlogic,meson-gxl-saradc
+              - amlogic,meson-gxm-saradc
+              - amlogic,meson-axg-saradc
+              - amlogic,meson-g12a-saradc
+          - const: amlogic,meson-saradc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: Interrupt indicates end of sampling.
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+    maxItems: 4
+
+  clock-names:
+    minItems: 2
+    items:
+      - const: clkin
+      - const: core
+      - const: adc_clk
+      - const: adc_sel
+
+  vref-supply: true
+
+  "#io-channel-cells":
+    const: 1
+
+  amlogic,hhi-sysctrl:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Syscon which contains the 5th bit of the TSC (temperature sensor
+      coefficient) on Meson8b and Meson8m2 (which used to calibrate the
+      temperature sensor)
+
+  nvmem-cells:
+    description: phandle to the temperature_calib eFuse cells
+    maxItems: 1
+
+  nvmem-cell-names:
+    const: temperature_calib
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson8-saradc
+              - amlogic,meson8b-saradc
+              - amlogic,meson8m2-saradc
+    then:
+      properties:
+        clocks:
+          maxItems: 2
+        clock-names:
+          maxItems: 2
+    else:
+      properties:
+        nvmem-cells: false
+        mvmem-cel-names: false
+        clocks:
+          minItems: 4
+        clock-names:
+          minItems: 4
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - amlogic,meson8b-saradc
+              - amlogic,meson8m2-saradc
+    then:
+      properties:
+        amlogic,hhi-sysctrl: true
+    else:
+      properties:
+        amlogic,hhi-sysctrl: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - "#io-channel-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/gxbb-clkc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        adc@8680 {
+            compatible = "amlogic,meson-gxl-saradc", "amlogic,meson-saradc";
+            #io-channel-cells = <1>;
+            reg = <0x0 0x8680 0x0 0x34>;
+            interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+            clocks = <&xtal>,
+                <&clkc CLKID_SAR_ADC>,
+                <&clkc CLKID_SAR_ADC_CLK>,
+                <&clkc CLKID_SAR_ADC_SEL>;
+            clock-names = "clkin", "core", "adc_clk", "adc_sel";
+        };
+        adc@9680 {
+            compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
+            #io-channel-cells = <1>;
+            reg = <0x0 0x9680 0x0 0x34>;
+            interrupts = <GIC_SPI 73 IRQ_TYPE_EDGE_RISING>;
+            clocks = <&xtal>, <&clkc CLKID_SAR_ADC>;
+            clock-names = "clkin", "core";
+            nvmem-cells = <&tsens_caldata>;
+            nvmem-cell-names = "temperature_calib";
+            amlogic,hhi-sysctrl = <&hhi>;
+        };
+    };
+...
-- 
cgit v1.2.3