pch_phub: Fix MAC address writing issue for LAPIS ML7831

commit 2a9887919457c6e1bd482e8448223be59d19010a upstream.

ISSUE:
Using ML7831, MAC address writing doesn't work well.

CAUSE:
ML7831 and EG20T have the same register map for MAC address access.
However, this driver processes the writing the same as ML7223.
This is not true.
This driver must process the writing the same as EG20T.
This patch fixes the issue.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Cc: Masayuki Ohtak <masa-korg@dsn.okisemi.com>
Cc: Alexander Stein <alexander.stein@systec-electronic.com>
Cc: Denis Turischev <denis@compulab.co.il>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c
index 7c70e7540fb738ff496bf2d412fa16292f842294..97e1a1f18a95ff1dd59e9c8125823f1fddfce752 100644 (file)
--- a/drivers/misc/pch_phub.c
+++ b/drivers/misc/pch_phub.c
@@ -467,7 +467,7 @@ static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data)
        int retval;
        int i;
 
-       if (chip->ioh_type == 1) /* EG20T */
+       if ((chip->ioh_type == 1) || (chip->ioh_type == 5)) /* EG20T or ML7831*/
                retval = pch_phub_gbe_serial_rom_conf(chip);
        else    /* ML7223 */
                retval = pch_phub_gbe_serial_rom_conf_mp(chip);