On 12/15/23 12:03 AM, Sergey Shtylyov 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. >> >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> > > Reviewed-by: Sergey Shtylyov <s.shtylyov@xxxxxx> > > [...] >> diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c >> index 04eaa1967651..6b8ca08be35e 100644 >> --- a/drivers/net/ethernet/renesas/ravb_main.c >> +++ b/drivers/net/ethernet/renesas/ravb_main.c >> @@ -1822,6 +1822,7 @@ 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); Looking at it again, I suspect this belong in ravb_dmac_init()... >> >> /* Device init */ >> error = ravb_dmac_init(ndev); [...] MBR, Sergey