[PATCH 3/3] clk: stm32mp: handle ck_usbo_48m clock provided by USBPHYC

[Patrice CHOTARD]

Hi Patrick

On 4/26/22 14:37, Patrick Delaunay wrote:
> Handle the input clock of RCC USB_PHY_48, provided by USBPHYC
> and named "ck_usbo_48m".
> 
> Signed-off-by: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
> 
>  drivers/clk/clk_stm32mp1.c | 35 ++++++++++++++++++++---------------
>  1 file changed, 20 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/clk/clk_stm32mp1.c b/drivers/clk/clk_stm32mp1.c
> index 83ab6b728e..a02921c43a 100644
> --- a/drivers/clk/clk_stm32mp1.c
> +++ b/drivers/clk/clk_stm32mp1.c
> @@ -962,6 +962,24 @@ static ulong stm32mp1_read_pll_freq(struct stm32mp1_clk_priv *priv,
>  	return dfout;
>  }
>  
> +static ulong stm32mp1_clk_get_by_name(const char *name)
> +{
> +	struct clk clk;
> +	struct udevice *dev = NULL;
> +	ulong clock = 0;
> +
> +	if (!uclass_get_device_by_name(UCLASS_CLK, name, &dev)) {
> +		if (clk_request(dev, &clk)) {
> +			log_err("%s request", name);
> +		} else {
> +			clk.id = 0;
> +			clock = clk_get_rate(&clk);
> +		}
> +	}
> +
> +	return clock;
> +}
> +
>  static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
>  {
>  	u32 reg;
> @@ -1127,24 +1145,11 @@ static ulong stm32mp1_clk_get(struct stm32mp1_clk_priv *priv, int p)
>  		break;
>  	/* other */
>  	case _USB_PHY_48:
> -		clock = 48000000;
> +		clock = stm32mp1_clk_get_by_name("ck_usbo_48m");
>  		break;
>  	case _DSI_PHY:
> -	{
> -		struct clk clk;
> -		struct udevice *dev = NULL;
> -
> -		if (!uclass_get_device_by_name(UCLASS_CLK, "ck_dsi_phy",
> -					       &dev)) {
> -			if (clk_request(dev, &clk)) {
> -				log_err("ck_dsi_phy request");
> -			} else {
> -				clk.id = 0;
> -				clock = clk_get_rate(&clk);
> -			}
> -		}
> +		clock = stm32mp1_clk_get_by_name("ck_dsi_phy");
>  		break;
> -	}
>  	default:
>  		break;
>  	}
Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>

Thanks
Patrice