dt-bindings: clock: Add X1830 clock bindings.

Add the clock bindings for the X1830 Soc from Ingenic.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lkml.kernel.org/r/20200528031549.13846-5-zhouyanjie@wanyeetech.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

include/dt-bindings/clock/x1830-cgu.h

+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides clock numbers for the ingenic,x1830-cgu DT binding.
+ *
+ * They are roughly ordered as:
+ *   - external clocks
+ *   - PLLs
+ *   - muxes/dividers in the order they appear in the x1830 programmers manual
+ *   - gates in order of their bit in the CLKGR* registers
+ */
+
+#ifndef __DT_BINDINGS_CLOCK_X1830_CGU_H__
+#define __DT_BINDINGS_CLOCK_X1830_CGU_H__
+
+#define X1830_CLK_EXCLK			0
+#define X1830_CLK_RTCLK			1
+#define X1830_CLK_APLL			2
+#define X1830_CLK_MPLL			3
+#define X1830_CLK_EPLL			4
+#define X1830_CLK_VPLL			5
+#define X1830_CLK_OTGPHY		6
+#define X1830_CLK_SCLKA			7
+#define X1830_CLK_CPUMUX		8
+#define X1830_CLK_CPU			9
+#define X1830_CLK_L2CACHE		10
+#define X1830_CLK_AHB0			11
+#define X1830_CLK_AHB2PMUX		12
+#define X1830_CLK_AHB2			13
+#define X1830_CLK_PCLK			14
+#define X1830_CLK_DDR			15
+#define X1830_CLK_MAC			16
+#define X1830_CLK_LCD			17
+#define X1830_CLK_MSCMUX		18
+#define X1830_CLK_MSC0			19
+#define X1830_CLK_MSC1			20
+#define X1830_CLK_SSIPLL		21
+#define X1830_CLK_SSIPLL_DIV2	22
+#define X1830_CLK_SSIMUX		23
+#define X1830_CLK_EMC			24
+#define X1830_CLK_EFUSE			25
+#define X1830_CLK_OTG			26
+#define X1830_CLK_SSI0			27
+#define X1830_CLK_SMB0			28
+#define X1830_CLK_SMB1			29
+#define X1830_CLK_SMB2			30
+#define X1830_CLK_UART0			31
+#define X1830_CLK_UART1			32
+#define X1830_CLK_SSI1			33
+#define X1830_CLK_SFC			34
+#define X1830_CLK_PDMA			35
+#define X1830_CLK_TCU			36
+#define X1830_CLK_DTRNG			37
+#define X1830_CLK_OST			38
+
+#endif /* __DT_BINDINGS_CLOCK_X1830_CGU_H__ */