Re: [PATCH net-next 2/6] net: stmmac: imx: use dwmac_set_tx_clk_gmii()

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On Mon, Sep 11, 2023 at 04:29:16PM +0100, Russell King (Oracle) wrote:
> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
> ---
>  .../net/ethernet/stmicro/stmmac/dwmac-imx.c   | 27 ++++++-------------
>  1 file changed, 8 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
> index df34e34cc14f..d2569faf7cc3 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
> @@ -21,6 +21,7 @@
>  #include <linux/stmmac.h>
>  
>  #include "stmmac_platform.h"
> +#include "stmmac_plat_lib.h"
>  
>  #define GPR_ENET_QOS_INTF_MODE_MASK	GENMASK(21, 16)
>  #define GPR_ENET_QOS_INTF_SEL_MII	(0x0 << 16)
> @@ -186,7 +187,6 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mod
>  {
>  	struct plat_stmmacenet_data *plat_dat;
>  	struct imx_priv_data *dwmac = priv;
> -	unsigned long rate;
>  	int err;
>  
>  	plat_dat = dwmac->plat_dat;
> @@ -196,24 +196,13 @@ static void imx_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mod
>  	    (plat_dat->mac_interface == PHY_INTERFACE_MODE_MII))
>  		return;
>  
> -	switch (speed) {
> -	case SPEED_1000:
> -		rate = 125000000;
> -		break;
> -	case SPEED_100:
> -		rate = 25000000;
> -		break;
> -	case SPEED_10:
> -		rate = 2500000;
> -		break;
> -	default:
> -		dev_err(dwmac->dev, "invalid speed %u\n", speed);
> -		return;
> -	}
> -
> -	err = clk_set_rate(dwmac->clk_tx, rate);
> -	if (err < 0)
> -		dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
> +	err = dwmac_set_tx_clk_gmii(dwmac->clk_tx, speed);
> +	if (err == -ENOTSUPP)

> +		dev_err(dwmac->dev, "invalid speed %dMbps\n", speed);

The 'speed' variable is of the unsigned int type so the type qualifier is
supposed to be "%u" here.

> +	else if (err)
> +		dev_err(dwmac->dev,

> +			"failed to set tx rate for speed %dMbps: %pe\n",

ditto

-Serge(y)

> +			speed, ERR_PTR(err));
>  }
>  
>  static void imx93_dwmac_fix_speed(void *priv, unsigned int speed, unsigned int mode)
> -- 
> 2.30.2
> 
> 




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