ravb: Document PFRI register bit

Document PFRI register bit, as it is documented on R-Car Gen3 and
RZ/G2L hardware manuals.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Suggested-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 5d07732..69a7715 100644 (file)
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -828,7 +828,7 @@ enum ECSR_BIT {
        ECSR_MPD        = 0x00000002,
        ECSR_LCHNG      = 0x00000004,
        ECSR_PHYI       = 0x00000008,
-       ECSR_PFRI       = 0x00000010,
+       ECSR_PFRI       = 0x00000010,   /* Documented for R-Car Gen3 and RZ/G2L */
 };
 
 /* ECSIPR */