1 files changed, 132 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/bitmain,bm1880-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/bitmain,bm1880-pinctrl.yaml
new file mode 100644
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+++ b/Documentation/devicetree/bindings/pinctrl/bitmain,bm1880-pinctrl.yaml
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/bitmain,bm1880-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bitmain BM1880 Pin Controller
+
+maintainers:
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+properties:
+  compatible:
+    const: bitmain,bm1880-pinctrl
+
+  reg:
+    maxItems: 1
+
+additionalProperties:
+  description: A pin configuration node.
+  type: object
+  additionalProperties: false
+
+  properties:
+    pinmux:
+      type: object
+      description: Pin multiplexing parameters.
+      allOf:
+        - $ref: /schemas/pinctrl/pincfg-node.yaml#
+        - $ref: /schemas/pinctrl/pinmux-node.yaml#
+      additionalProperties: false
+
+      properties:
+        pins:
+          items:
+            pattern: '^MIO[0-9]+$'
+
+        groups:
+          items:
+            enum: [
+              nand_grp, spi_grp, emmc_grp, sdio_grp, eth0_grp, pwm0_grp,
+              pwm1_grp, pwm2_grp, pwm3_grp, pwm4_grp, pwm5_grp, pwm6_grp,
+              pwm7_grp, pwm8_grp, pwm9_grp, pwm10_grp, pwm11_grp, pwm12_grp,
+              pwm13_grp, pwm14_grp, pwm15_grp, pwm16_grp, pwm17_grp,
+              pwm18_grp, pwm19_grp, pwm20_grp, pwm21_grp, pwm22_grp,
+              pwm23_grp, pwm24_grp, pwm25_grp, pwm26_grp, pwm27_grp,
+              pwm28_grp, pwm29_grp, pwm30_grp, pwm31_grp, pwm32_grp,
+              pwm33_grp, pwm34_grp, pwm35_grp, pwm36_grp, i2c0_grp,
+              i2c1_grp, i2c2_grp, i2c3_grp, i2c4_grp, uart0_grp, uart1_grp,
+              uart2_grp, uart3_grp, uart4_grp, uart5_grp, uart6_grp,
+              uart7_grp, uart8_grp, uart9_grp, uart10_grp, uart11_grp,
+              uart12_grp, uart13_grp, uart14_grp, uart15_grp, gpio0_grp,
+              gpio1_grp, gpio2_grp, gpio3_grp, gpio4_grp, gpio5_grp,
+              gpio6_grp, gpio7_grp, gpio8_grp, gpio9_grp, gpio10_grp,
+              gpio11_grp, gpio12_grp, gpio13_grp, gpio14_grp, gpio15_grp,
+              gpio16_grp, gpio17_grp, gpio18_grp, gpio19_grp, gpio20_grp,
+              gpio21_grp, gpio22_grp, gpio23_grp, gpio24_grp, gpio25_grp,
+              gpio26_grp, gpio27_grp, gpio28_grp, gpio29_grp, gpio30_grp,
+              gpio31_grp, gpio32_grp, gpio33_grp, gpio34_grp, gpio35_grp,
+              gpio36_grp, gpio37_grp, gpio38_grp, gpio39_grp, gpio40_grp,
+              gpio41_grp, gpio42_grp, gpio43_grp, gpio44_grp, gpio45_grp,
+              gpio46_grp, gpio47_grp, gpio48_grp, gpio49_grp, gpio50_grp,
+              gpio51_grp, gpio52_grp, gpio53_grp, gpio54_grp, gpio55_grp,
+              gpio56_grp, gpio57_grp, gpio58_grp, gpio59_grp, gpio60_grp,
+              gpio61_grp, gpio62_grp, gpio63_grp, gpio64_grp, gpio65_grp,
+              gpio66_grp, gpio67_grp, eth1_grp, i2s0_grp, i2s0_mclkin_grp,
+              i2s1_grp, i2s1_mclkin_grp, spi0_grp
+            ]
+
+        function:
+          items:
+            enum: [
+              nand, spi, emmc, sdio, eth0, pwm0, pwm1, pwm2, pwm3, pwm4,
+              pwm5, pwm6, pwm7, pwm8, pwm9, pwm10, pwm11, pwm12, pwm13,
+              pwm14, pwm15, pwm16, pwm17, pwm18, pwm19, pwm20, pwm21, pwm22,
+              pwm23, pwm24, pwm25, pwm26, pwm27, pwm28, pwm29, pwm30, pwm31,
+              pwm32, pwm33, pwm34, pwm35, pwm36, i2c0, i2c1, i2c2, i2c3,
+              i2c4, uart0, uart1, uart2, uart3, uart4, uart5, uart6, uart7,
+              uart8, uart9, uart10, uart11, uart12, uart13, uart14, uart15,
+              gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6, gpio7, gpio8,
+              gpio9, gpio10, gpio11, gpio12, gpio13, gpio14, gpio15, gpio16,
+              gpio17, gpio18, gpio19, gpio20, gpio21, gpio22, gpio23,
+              gpio24, gpio25, gpio26, gpio27, gpio28, gpio29, gpio30,
+              gpio31, gpio32, gpio33, gpio34, gpio35, gpio36, gpio37,
+              gpio38, gpio39, gpio40, gpio41, gpio42, gpio43, gpio44,
+              gpio45, gpio46, gpio47, gpio48, gpio49, gpio50, gpio51,
+              gpio52, gpio53, gpio54, gpio55, gpio56, gpio57, gpio58,
+              gpio59, gpio60, gpio61, gpio62, gpio63, gpio64, gpio65,
+              gpio66, gpio67, eth1, i2s0, i2s0_mclkin, i2s1, i2s1_mclkin,
+              spi0
+            ]
+
+        bias-disable: true
+        bias-pull-down: true
+        bias-pull-up: true
+        input-schmitt-enable: true
+        input-schmitt-disable: true
+
+        slew-rate:
+          description: >
+            Sets slew rate. Valid values: 0 = Slow, 1 = Fast.
+          enum: [0, 1]
+
+        drive-strength:
+          enum: [4, 8, 12, 16, 20, 24, 28, 32]
+
+      oneOf:
+        - required:
+            - pins
+        - required:
+            - groups
+
+      required:
+        - function
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    pinctrl@400 {
+        compatible = "bitmain,bm1880-pinctrl";
+        reg = <0x400 0x120>;
+
+        uart0-default {
+            pinmux {
+                groups = "uart0_grp";
+                function = "uart0";
+            };
+        };
+    };