dt-bindings: clock: Add Marvell PXA1908 clock bindings

Add dt bindings and documentation for the Marvell PXA1908 clock
controller.

Reviewed-by: Conor Dooley <[e-mail]>
Reviewed-by: Stephen Boyd <[e-mail]>
Signed-off-by: Duje Mihanović <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Stephen Boyd <[e-mail]>

Documentation/devicetree/bindings/clock/marvell,pxa1908.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,pxa1908.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell PXA1908 Clock Controllers
+
+maintainers:
+  - Duje Mihanović <[e-mail]>
+
+description: |
+  The PXA1908 clock subsystem generates and supplies clock to various
+  controllers within the PXA1908 SoC. The PXA1908 contains numerous clock
+  controller blocks, with the ones currently supported being APBC, APBCP, MPMU
+  and APMU roughly corresponding to internal buses.
+
+  All these clock identifiers could be found in <include/dt-bindings/marvell,pxa1908.h>.
+
+properties:
+  compatible:
+    enum:
+      - marvell,pxa1908-apbc
+      - marvell,pxa1908-apbcp
+      - marvell,pxa1908-mpmu
+      - marvell,pxa1908-apmu
+
+  reg:
+    maxItems: 1
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  # APMU block:
+  - |
+    clock-controller@d4282800 {
+      compatible = "marvell,pxa1908-apmu";
+      reg = <0xd4282800 0x400>;
+      #clock-cells = <1>;
+    };

include/dt-bindings/clock/marvell,pxa1908.h

···
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+#ifndef __DTS_MARVELL_PXA1908_CLOCK_H
+#define __DTS_MARVELL_PXA1908_CLOCK_H
+
+/* plls */
+#define PXA1908_CLK_CLK32		1
+#define PXA1908_CLK_VCTCXO		2
+#define PXA1908_CLK_PLL1_624		3
+#define PXA1908_CLK_PLL1_416		4
+#define PXA1908_CLK_PLL1_499		5
+#define PXA1908_CLK_PLL1_832		6
+#define PXA1908_CLK_PLL1_1248		7
+#define PXA1908_CLK_PLL1_D2		8
+#define PXA1908_CLK_PLL1_D4		9
+#define PXA1908_CLK_PLL1_D8		10
+#define PXA1908_CLK_PLL1_D16		11
+#define PXA1908_CLK_PLL1_D6		12
+#define PXA1908_CLK_PLL1_D12		13
+#define PXA1908_CLK_PLL1_D24		14
+#define PXA1908_CLK_PLL1_D48		15
+#define PXA1908_CLK_PLL1_D96		16
+#define PXA1908_CLK_PLL1_D13		17
+#define PXA1908_CLK_PLL1_32		18
+#define PXA1908_CLK_PLL1_208		19
+#define PXA1908_CLK_PLL1_117		20
+#define PXA1908_CLK_PLL1_416_GATE	21
+#define PXA1908_CLK_PLL1_624_GATE	22
+#define PXA1908_CLK_PLL1_832_GATE	23
+#define PXA1908_CLK_PLL1_1248_GATE	24
+#define PXA1908_CLK_PLL1_D2_GATE	25
+#define PXA1908_CLK_PLL1_499_EN		26
+#define PXA1908_CLK_PLL2VCO		27
+#define PXA1908_CLK_PLL2		28
+#define PXA1908_CLK_PLL2P		29
+#define PXA1908_CLK_PLL2VCODIV3		30
+#define PXA1908_CLK_PLL3VCO		31
+#define PXA1908_CLK_PLL3		32
+#define PXA1908_CLK_PLL3P		33
+#define PXA1908_CLK_PLL3VCODIV3		34
+#define PXA1908_CLK_PLL4VCO		35
+#define PXA1908_CLK_PLL4		36
+#define PXA1908_CLK_PLL4P		37
+#define PXA1908_CLK_PLL4VCODIV3		38
+
+/* apb (apbc) peripherals */
+#define PXA1908_CLK_UART0		1
+#define PXA1908_CLK_UART1		2
+#define PXA1908_CLK_GPIO		3
+#define PXA1908_CLK_PWM0		4
+#define PXA1908_CLK_PWM1		5
+#define PXA1908_CLK_PWM2		6
+#define PXA1908_CLK_PWM3		7
+#define PXA1908_CLK_SSP0		8
+#define PXA1908_CLK_SSP1		9
+#define PXA1908_CLK_IPC_RST		10
+#define PXA1908_CLK_RTC			11
+#define PXA1908_CLK_TWSI0		12
+#define PXA1908_CLK_KPC			13
+#define PXA1908_CLK_SWJTAG		14
+#define PXA1908_CLK_SSP2		15
+#define PXA1908_CLK_TWSI1		16
+#define PXA1908_CLK_THERMAL		17
+#define PXA1908_CLK_TWSI3		18
+
+/* apb (apbcp) peripherals */
+#define PXA1908_CLK_UART2		1
+#define PXA1908_CLK_TWSI2		2
+#define PXA1908_CLK_AICER		3
+
+/* axi (apmu) peripherals */
+#define PXA1908_CLK_CCIC1		1
+#define PXA1908_CLK_ISP			2
+#define PXA1908_CLK_DSI1		3
+#define PXA1908_CLK_DISP1		4
+#define PXA1908_CLK_CCIC0		5
+#define PXA1908_CLK_SDH0		6
+#define PXA1908_CLK_SDH1		7
+#define PXA1908_CLK_USB			8
+#define PXA1908_CLK_NF			9
+#define PXA1908_CLK_CORE_DEBUG		10
+#define PXA1908_CLK_VPU			11
+#define PXA1908_CLK_GC			12
+#define PXA1908_CLK_SDH2		13
+#define PXA1908_CLK_GC2D		14
+#define PXA1908_CLK_TRACE		15
+#define PXA1908_CLK_DVC_DFC_DEBUG	16
+
+#endif