MIPS: loongson32: Update the clock initialization

The Loongson-1 clock driver is under re-implementation
to add DT support. As a result, ls1x_clk_init() will be dropped soon.
Therefore, call of_clk_init() for clock initialization instead.
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Link: https://lore.kernel.org/r/20230321111817.71756-5-keguang.zhang@gmail.comSigned-off-by: Stephen Boyd <sboyd@kernel.org>

arch/mips/include/asm/mach-loongson32/platform.h

@@ -20,7 +20,6 @@ extern struct platform_device ls1x_gpio1_pdev;
 extern struct platform_device ls1x_rtc_pdev;
 extern struct platform_device ls1x_wdt_pdev;
 
-void __init ls1x_clk_init(void);
 void __init ls1x_rtc_set_extclk(struct platform_device *pdev);
 void __init ls1x_serial_set_uartclk(struct platform_device *pdev);
 

arch/mips/loongson32/common/time.c

@@ -4,6 +4,7 @@
  */
 
 #include <linux/clk.h>
+#include <linux/of_clk.h>
 #include <linux/interrupt.h>
 #include <linux/sizes.h>
 #include <asm/time.h>
@@ -211,7 +212,7 @@ void __init plat_time_init(void)
 	struct clk *clk = NULL;
 
 	/* initialize LS1X clocks */
-	ls1x_clk_init();
+	of_clk_init(NULL);
 
 #ifdef CONFIG_CEVT_CSRC_LS1X
 	/* setup LS1X PWM timer */