architecture/mips64/package/linux/6000-rtc.patch

   1 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   2 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
   3 #
   4 # T2 SDE: architecture/mips64/package/.../6000-rtc.patch
   5 # Copyright (C) 2019 The T2 SDE Project
   6 #
   7 # More information can be found in the files COPYING and README.
   8 #
   9 # This patch file is dual-licensed. It is available under the license the
  10 # patched project is licensed under, as long as it is an OpenSource license
  11 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  12 # of the GNU General Public License as published by the Free Software
  13 # Foundation; either version 2 of the License, or (at your option) any later
  14 # version.
  15 # --- T2-COPYRIGHT-NOTE-END ---
  16
  17 The upstream driver did not power down my Sgi Octane anymore,
  18 so let's loop on rtc write like the original ip30 code from
  19 Stanislaw did.
  20
  21   - Rene Rebe <rene@exactcode.de>
  22
  23 --- linux-4.18.5/drivers/rtc/rtc-ds1685.c.vanilla       2019-10-20 16:45:44.799396423 +0000
  24 +++ linux-4.18.5/drivers/rtc/rtc-ds1685.c       2019-10-20 19:16:44.747245705 +0000
  25 @@ -2212,12 +2212,12 @@
  26
  27                 /* Set PAB to 1 in Control 4A to power the system down. */
  28                 dev_warn(&pdev->dev, "Powerdown.\n");
  29 -               msleep(20);
  30 -               rtc->write(rtc, RTC_EXT_CTRL_4A,
  31 -                          (ctrl4a | RTC_CTRL_4A_PAB));
  32 -
  33 -               /* Spin ... we do not switch back to bank0. */
  34 -               while(1);
  35 +               while(1) {
  36 +                       /* Spin ... we do not switch back to bank0. */
  37 +                       rtc->write(rtc, RTC_EXT_CTRL_4A,
  38 +                                  (ctrl4a | RTC_CTRL_4A_PAB));
  39 +                       msleep(200);
  40 +               };
  41                 unreachable();
  42         }
  43  }