package/kernel/linux/0200-riscv-sifive-reboot.patch

   1 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   2 # T2 SDE: package/*/linux/0200-riscv-sifive-reboot.patch
   3 # Copyright (C) 2021 - 2022 The T2 SDE Project
   4 #
   5 # This Copyright note is generated by scripts/Create-CopyPatch,
   6 # more information can be found in the files COPYING and README.
   7 #
   8 # This patch file is dual-licensed. It is available under the license the
   9 # patched project is licensed under, as long as it is an OpenSource license
  10 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  11 # of the GNU General Public License version 2 as used by the T2 SDE.
  12 # --- T2-COPYRIGHT-NOTE-END ---
  13
  14 --- ./include/linux/mfd/da9063/core.h.orig      2021-07-20 11:58:26.803336163 +0200
  15 +++ ./include/linux/mfd/da9063/core.h   2021-07-20 11:59:01.951257914 +0200
  16 @@ -85,6 +85,9 @@
  17         int             chip_irq;
  18         unsigned int    irq_base;
  19         struct regmap_irq_chip_data *regmap_irq;
  20 +
  21 +       /* Restart */
  22 +       struct notifier_block restart_handler;
  23  };
  24
  25  int da9063_device_init(struct da9063 *da9063, unsigned int irq);
  26 --- ./drivers/mfd/da9063-core.c.orig    2021-07-20 12:00:24.843080267 +0200
  27 +++ ./drivers/mfd/da9063-core.c 2021-07-20 14:55:59.528014000 +0200
  28 @@ -20,6 +20,7 @@
  29  #include <linux/mutex.h>
  30  #include <linux/mfd/core.h>
  31  #include <linux/regmap.h>
  32 +#include <linux/reboot.h>
  33
  34  #include <linux/mfd/da9063/core.h>
  35  #include <linux/mfd/da9063/registers.h>
  36 @@ -158,6 +159,20 @@
  37         return ret;
  38  }
  39
  40 +static int da9063_restart_notify(struct notifier_block *this,
  41 +                                unsigned long mode, void *cmd)
  42 +{
  43 +  struct da9063 *da9063 = container_of(this, struct da9063, restart_handler);
  44 +
  45 +  regmap_write(da9063->regmap, DA9063_REG_PAGE_CON, 0x00);
  46 +  regmap_write(da9063->regmap, DA9063_AD_REG_ALARM_Y, 0x20);
  47 +  regmap_write(da9063->regmap, DA9063_AD_REG_SECOND_A, 0x80);
  48 +  regmap_write(da9063->regmap, DA9063_REG_EVENT_A, 0x4);
  49 +  regmap_write(da9063->regmap, DA9063_REG_CONTROL_F, 0x2);
  50 +
  51 +  return NOTIFY_DONE;
  52 +}
  53 +
  54  int da9063_device_init(struct da9063 *da9063, unsigned int irq)
  55  {
  56         int ret;
  57 @@ -197,6 +212,12 @@
  58                 }
  59         }
  60
  61 +       da9063->restart_handler.notifier_call = da9063_restart_notify;
  62 +       da9063->restart_handler.priority = 129;
  63 +       ret = register_restart_handler(&da9063->restart_handler);
  64 +       if (ret) dev_err(da9063->dev, "Failed to register restart handler\n");
  65 +       else devm_add_action(da9063->dev, (void(*)(void*))unregister_restart_handler, &da9063->restart_handler);
  66 +
  67         return ret;
  68  }