target/linux/mvebu/patches-4.19/408-sfp-more-cotsworks-fixes.patch

   1 From e26af2726067ff260b77485df6af8375b82bfb1d Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Sat, 23 Dec 2017 12:22:58 +0000
   4 Subject: [PATCH] sfp: more cotsworks fixes
   5
   6 Cotsworks also gets the date code wrong.
   7
   8 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
   9 ---
  10  drivers/net/phy/sfp.c | 15 ++++++++-------
  11  1 file changed, 8 insertions(+), 7 deletions(-)
  12
  13 --- a/drivers/net/phy/sfp.c
  14 +++ b/drivers/net/phy/sfp.c
  15 @@ -1571,9 +1571,9 @@ static int sfp_sm_mod_probe(struct sfp *
  16                 return -EAGAIN;
  17         }
  18
  19 -       /* Cotsworks do not seem to update the checksums when they
  20 -        * do the final programming with the final module part number,
  21 -        * serial number and date code.
  22 +       /* Cotsworks do not seem to update the checksums when they update the
  23 +        * module part number, serial number and date code. They also format
  24 +        * the date code incorrectly.
  25          */
  26         cotsworks = !memcmp(id.base.vendor_name, "COTSWORKS       ", 16);
  27
  28 @@ -1612,11 +1612,12 @@ static int sfp_sm_mod_probe(struct sfp *
  29
  30         sfp->id = id;
  31
  32 -       date[0] = sfp->id.ext.datecode[4];
  33 -       date[1] = sfp->id.ext.datecode[5];
  34 +       /* Cotsworks also gets the date code wrong. */
  35 +       date[0] = sfp->id.ext.datecode[4 - 2 * cotsworks];
  36 +       date[1] = sfp->id.ext.datecode[5 - 2 * cotsworks];
  37         date[2] = '-';
  38 -       date[3] = sfp->id.ext.datecode[2];
  39 -       date[4] = sfp->id.ext.datecode[3];
  40 +       date[3] = sfp->id.ext.datecode[2 + 2 * cotsworks];
  41 +       date[4] = sfp->id.ext.datecode[3 + 2 * cotsworks];
  42         date[5] = '-';
  43         date[6] = sfp->id.ext.datecode[0];
  44         date[7] = sfp->id.ext.datecode[1];