riscv: Fix kernel time_init()

If of_clk_init() is not called in time_init(), clock providers defined
in the system device tree are not initialized, resulting in failures for
other devices to initialize due to missing clocks.
Similarly to other architectures and to the default kernel time_init()
implementation, call of_clk_init() before executing timer_probe() in
time_init().

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

diff --git a/arch/riscv/kernel/time.c b/arch/riscv/kernel/time.c
index 4d3a1048ad8b1cbc690c75321933e9057a2b69b6..8a5cf99c07762403ebd55ba6f54e03005e28b7e4 100644 (file)
--- a/arch/riscv/kernel/time.c
+++ b/arch/riscv/kernel/time.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2017 SiFive
  */
 
+#include <linux/of_clk.h>
 #include <linux/clocksource.h>
 #include <linux/delay.h>
 #include <asm/sbi.h>
@@ -24,6 +25,8 @@ void __init time_init(void)
        riscv_timebase = prop;
 
        lpj_fine = riscv_timebase / HZ;
+
+       of_clk_init(NULL);
        timer_probe();
 }