Re: [PATCH 08/32] riscv: Fix kernel time_init()

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On Sat, Nov 7, 2020 at 12:15 AM Damien Le Moal <damien.lemoal@xxxxxxx> wrote:
>
> 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@xxxxxxx>
> ---
>  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 4d3a1048ad8b..8a5cf99c0776 100644
> --- 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();
>  }
>
> --
> 2.28.0
>
>
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Reviewed-by: Atish Patra <atish.patra@xxxxxxx>

-- 
Regards,
Atish



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