Re: [RFC PATCH 1/4] clk: mxs: imx28: Reparent gpmi clk to ref_gpmi

[Stephen Boyd <sboyd@kernel.org>]

Quoting Dario Binacchi (2021-12-17 07:55:09)
> From: Michael Trimarchi <michael@amarulasolutions.com>
> 
> ref_gpmi is connected that is sourced from pll0. This allow
> to get nand clk frequency to handle edo mode 5,4,3
> 
> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
> ---
> 
>  drivers/clk/mxs/clk-imx28.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
> index 62146ea4d5b8..9e0b9f8e5885 100644
> --- a/drivers/clk/mxs/clk-imx28.c
> +++ b/drivers/clk/mxs/clk-imx28.c
> @@ -243,6 +243,9 @@ static void __init mx28_clocks_init(struct device_node *np)
>  
>         clk_register_clkdev(clks[enet_out], NULL, "enet_out");
>  
> +       /* GPMI set parent to ref_gpmi instead of osc */
> +       clk_set_parent(clks[gpmi_sel], clks[ref_gpmi]);

Please check the return value and print a warning or something if it
fails. Also, can it be done through assigned-clock-parents instead?

> +
>         for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
>                 clk_prepare_enable(clks[clks_init_on[i]]);
>  }