i3c: master: Add driver for Rockchip IP

Add driver for Rockchip I3C master IP

Change-Id: I73ca38117c0e0e603da23586c7b5c93f80917b2e
Signed-off-by: David Wu <david.wu@rock-chips.com>

Documentation/devicetree/bindings/i3c/rockchip,i3c-master.yaml

@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i3c/rockchip,i3c-master.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip I3C master block
+
+allOf:
+  - $ref: i3c.yaml#
+
+properties:
+  compatible:
+    const: rockchip,i3c-master
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    minItems: 2
+    items:
+      - const: i3c
+      - const: pclk
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i3c0: i3c-master@2abe0000 {
+      compatible = "rockchip,rk3576-i3c-master";
+      reg = <0x0 0x2abe0000 0x0 0x1000>;
+      interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+      #address-cells = <3>;
+      #size-cells = <0>;
+      clocks = <&cru HCLK_I3C>, <&cru i3C>;
+      clock-names = "hclk", "i3c";
+      dmas = <&dmac0 22>, <&dmac0 23>;
+      dma-names = "rx", "tx";
+    };

drivers/i3c/master/Kconfig

@@ -22,6 +22,14 @@ config DW_I3C_MASTER
 	  This driver can also be built as a module.  If so, the module
 	  will be called dw-i3c-master.
 
+config ROCKCHIP_I3C_MASTER
+	tristate "Rockchip I3C master driver"
+	depends on I3C
+	depends on HAS_IOMEM
+	depends on ARCH_ROCKCHIP
+	help
+	  Support for Rockchip I3C Controller.
+
 config SVC_I3C_MASTER
 	tristate "Silvaco I3C Dual-Role Master driver"
 	depends on I3C

drivers/i3c/master/Makefile

@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_CDNS_I3C_MASTER)		+= i3c-master-cdns.o
 obj-$(CONFIG_DW_I3C_MASTER)		+= dw-i3c-master.o
+obj-$(CONFIG_ROCKCHIP_I3C_MASTER)	+= i3c-rockchip-master.o
 obj-$(CONFIG_SVC_I3C_MASTER)		+= svc-i3c-master.o
 obj-$(CONFIG_MIPI_I3C_HCI)		+= mipi-i3c-hci/