dt-bindings: soc: spacemit: k3: add clock support

Add compatible strings for clock drivers to support Spacemit K3 SoC,
also includes all the defined clock IDs.

The SpacemiT K3 SoC clock IP is scattered over several different blocks,
which are APBC, APBS, APMU, DCIU, MPMU, all of them are capable of
generating clock and reset signals. APMU and MPMU have additional Power
Domain management functionality.

Following is a brief list that shows devices managed in each block:

APBC: UART, GPIO, PWM, SPI, TIMER, I2S, IR, DR, TSEN, IPC, CAN
APBS: various PPL clocks control
APMU: CCI, CPU, CSI, ISP, LCD, USB, QSPI, DMA, VPU, GPU, DSI, PCIe, EMAC..
DCID: SRAM, DMA, TCM
MPMU: various PLL1 derived clocks, UART, WATCHDOG, I2S

Link: https://lore.kernel.org/r/20260108-k3-clk-v5-1-42a11b74ad58@gentoo.org
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Yixun Lan <dlan@gentoo.org>

Author: dlan17

Documentation/devicetree/bindings/clock/spacemit,k1-pll.yaml

@@ -4,14 +4,16 @@
 $id: http://devicetree.org/schemas/clock/spacemit,k1-pll.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: SpacemiT K1 PLL
+title: SpacemiT K1/K3 PLL
 
 maintainers:
   - Haylen Chu <heylenay@4d2.org>
 
 properties:
   compatible:
-    const: spacemit,k1-pll
+    enum:
+      - spacemit,k1-pll
+      - spacemit,k3-pll
 
   reg:
     maxItems: 1
@@ -28,7 +30,8 @@ properties:
   "#clock-cells":
     const: 1
     description:
-      See <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+      For K1 SoC, check <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+      For K3 SoC, check <dt-bindings/clock/spacemit,k3-clocks.h> for valid indices.
 
 required:
   - compatible

Documentation/devicetree/bindings/soc/spacemit/spacemit,k1-syscon.yaml

@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/soc/spacemit/spacemit,k1-syscon.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: SpacemiT K1 SoC System Controller
+title: SpacemiT K1/K3 SoC System Controller
 
 maintainers:
   - Haylen Chu <heylenay@4d2.org>
@@ -22,6 +22,10 @@ properties:
       - spacemit,k1-syscon-rcpu
       - spacemit,k1-syscon-rcpu2
       - spacemit,k1-syscon-apbc2
+      - spacemit,k3-syscon-apbc
+      - spacemit,k3-syscon-apmu
+      - spacemit,k3-syscon-dciu
+      - spacemit,k3-syscon-mpmu
 
   reg:
     maxItems: 1
@@ -39,7 +43,8 @@ properties:
   "#clock-cells":
     const: 1
     description:
-      See <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+      For K1 SoC, check <dt-bindings/clock/spacemit,k1-syscon.h> for valid indices.
+      For K3 SoC, check <dt-bindings/clock/spacemit,k3-clocks.h> for valid indices.
 
   "#power-domain-cells":
     const: 1
@@ -60,6 +65,8 @@ allOf:
             enum:
               - spacemit,k1-syscon-apmu
               - spacemit,k1-syscon-mpmu
+              - spacemit,k3-syscon-apmu
+              - spacemit,k3-syscon-mpmu
     then:
       required:
         - "#power-domain-cells"
@@ -74,6 +81,9 @@ allOf:
               - spacemit,k1-syscon-apbc
               - spacemit,k1-syscon-apmu
               - spacemit,k1-syscon-mpmu
+              - spacemit,k3-syscon-apbc
+              - spacemit,k3-syscon-apmu
+              - spacemit,k3-syscon-mpmu
     then:
       required:
         - clocks