clk: sophgo: Add PLL clock controller support for SG2044 SoC

Add PLL clock driver and clock definition for SG2044 SoC.

Link: https://lore.kernel.org/r/20250418020325.421257-5-inochiama@gmail.com
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Chen Wang <wangchen20@iscas.ac.cn>

Author: inochisa

drivers/clk/sophgo/Kconfig

@@ -37,3 +37,13 @@ config CLK_SOPHGO_SG2042_RPGATE
 	  This clock IP depends on SG2042 Clock Generator because it uses
 	  clock from Clock Generator IP as input.
 	  This driver provides Gate function for RP.
+
+config CLK_SOPHGO_SG2044_PLL
+	tristate "Sophgo SG2044 PLL clock controller support"
+	depends on ARCH_SOPHGO || COMPILE_TEST
+	select MFD_SYSCON
+	select REGMAP_MMIO
+	help
+	  This driver supports the PLL clock controller on the Sophgo
+	  SG2044 SoC. This controller requires 25M oscillator as input.
+	  This clock control provides PLL clocks on the SoC.

drivers/clk/sophgo/Makefile

@@ -9,3 +9,4 @@ clk-sophgo-cv1800-y		+= clk-cv18xx-pll.o
 obj-$(CONFIG_CLK_SOPHGO_SG2042_CLKGEN)	+= clk-sg2042-clkgen.o
 obj-$(CONFIG_CLK_SOPHGO_SG2042_PLL)	+= clk-sg2042-pll.o
 obj-$(CONFIG_CLK_SOPHGO_SG2042_RPGATE)	+= clk-sg2042-rpgate.o
+obj-$(CONFIG_CLK_SOPHGO_SG2044_PLL)	+= clk-sg2044-pll.o