Re: [PATCH net-next v3 11/19] net: ravb: Move DBAT configuration to the driver's ndo_open API

[Sergey Shtylyov]

On 1/5/24 11:23 AM, Claudiu wrote:

> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
> 
> DBAT setup was done in the driver's probe API. As some IP variants switch
> to reset mode (and thus registers content is lost) when setting clocks
> (due to module standby functionality) to be able to implement runtime PM
> move the DBAT configuration in the driver's ndo_open API.
> 
> This commit prepares the code for the addition of runtime PM.
> 
> Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
[...]

> diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
> index 946abd7606ca..dbc26c3e95ec 100644
> --- a/drivers/net/ethernet/renesas/ravb_main.c
> +++ b/drivers/net/ethernet/renesas/ravb_main.c
> @@ -1826,6 +1826,7 @@ static int ravb_open(struct net_device *ndev)
>  		napi_enable(&priv->napi[RAVB_NC]);
>  
>  	ravb_set_delay_mode(ndev);
> +	ravb_write(ndev, priv->desc_bat_dma, DBAT);

   Please do consider moving this to ravb_dmac_init(), at least in
the future...

>  
>  	/* Device init */
>  	error = ravb_dmac_init(ndev);

MBR, Sergey