releases/4.19.171/riscv-fix-kernel-time_init.patch

From 8899559cebcc8442d630ce5e9b726d1bf7b20674 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Sun, 13 Dec 2020 22:50:34 +0900
Subject: riscv: Fix kernel time_init()

From: Damien Le Moal <damien.lemoal@wdc.com>

[ Upstream commit 11f4c2e940e2f317c9d8fb5a79702f2a4a02ff98 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/riscv/kernel/time.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/riscv/kernel/time.c b/arch/riscv/kernel/time.c
index 1911c8f6b8a69..15f4ab40e2221 100644
--- a/arch/riscv/kernel/time.c
+++ b/arch/riscv/kernel/time.c
@@ -12,6 +12,7 @@
  *   GNU General Public License for more details.
  */
 
+#include <linux/of_clk.h>
 #include <linux/clocksource.h>
 #include <linux/delay.h>
 #include <asm/sbi.h>
@@ -29,5 +30,7 @@ void __init time_init(void)
 	riscv_timebase = prop;
 
 	lpj_fine = riscv_timebase / HZ;
+
+	of_clk_init(NULL);
 	timer_probe();
 }
-- 
2.27.0