Merge tag 'orion_dt_for_3.8' of git://git.infradead.org/users/jcooper/linux into next/dt

From Jason Cooper:
orion dt for v3.8

 - ehci-orion dt binding
 - gpio-poweroff
 - use dt regulators
 - move mpp to DT/pinctrl

Depends on:

 - orion/boards

    - merge conflicts
       - keep all 'select's in Kconfig
       - remove all #includes in board-*.c

 - pinctrl/devel up to:

    - 06763c7 pinctrl: mvebu: move to its own directory

* tag 'orion_dt_for_3.8' of git://git.infradead.org/users/jcooper/linux: (211 commits)
  ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
  ARM: Kirkwood: Add support LED of OpenBlocks A6
  ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
  ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
  ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
  ARM: kirkwood: Add support DT of second I2C bus
  ARM: kirkwood: Convert mplcec4 board to pinctrl
  ARM: Kirkwood: Convert km_kirkwood to pinctrl
  ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
  ARM: Kirkwood: Convert IX2-200 to pinctrl.
  ARM: Kirkwood: Convert lsxl boards to pinctrl.
  ARM: Kirkwood: Convert ib62x0 to pinctrl.
  ARM: Kirkwood: Convert GoFlex Net to pinctrl.
  ARM: Kirkwood: Convert dreamplug to pinctrl.
  ARM: Kirkwood: Convert dockstar to pinctrl.
  ARM: Kirkwood: Convert dnskw to pinctrl
  ARM: Kirkwood: Convert iConnect to pinctrl.
  ARM: Kirkwood: Convert TS219 to pinctrl.
  ARM: Kirkwood: Add DTSI files for pinctrl
  ARM: Kirkwood: Make use of mvebu pincltl and gpio drivers
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/power/reset/gpio-poweroff.c b/drivers/power/reset/gpio-poweroff.c
new file mode 100644
index 000000000000..0491e5335d02
--- /dev/null
+++ b/drivers/power/reset/gpio-poweroff.c
@@ -0,0 +1,129 @@
+/*
+ * Toggles a GPIO pin to power down a device
+ *
+ * Jamie Lentin <jm@lentin.co.uk>
+ * Andrew Lunn <andrew@lunn.ch>
+ *
+ * Copyright (C) 2012 Jamie Lentin
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/module.h>
+
+/*
+ * Hold configuration here, cannot be more than one instance of the driver
+ * since pm_power_off itself is global.
+ */
+static int gpio_num = -1;
+static int gpio_active_low;
+
+static void gpio_poweroff_do_poweroff(void)
+{
+        BUG_ON(gpio_num == -1);
+
+        /* drive it active */
+        gpio_direction_output(gpio_num, !gpio_active_low);
+        mdelay(100);
+        /* rising edge or drive inactive */
+        gpio_set_value(gpio_num, gpio_active_low);
+        mdelay(100);
+        /* falling edge */
+        gpio_set_value(gpio_num, !gpio_active_low);
+
+        /* give it some time */
+        mdelay(3000);
+
+        WARN_ON(1);
+}
+
+static int __devinit gpio_poweroff_probe(struct platform_device *pdev)
+{
+        enum of_gpio_flags flags;
+        bool input = false;
+        int ret;
+
+        /* If a pm_power_off function has already been added, leave it alone */
+        if (pm_power_off != NULL) {
+                pr_err("%s: pm_power_off function already registered",
+                       __func__);
+                return -EBUSY;
+        }
+
+        gpio_num = of_get_gpio_flags(pdev->dev.of_node, 0, &flags);
+        if (gpio_num < 0) {
+                pr_err("%s: Could not get GPIO configuration: %d",
+                       __func__, gpio_num);
+                return -ENODEV;
+        }
+        gpio_active_low = flags & OF_GPIO_ACTIVE_LOW;
+
+        if (of_get_property(pdev->dev.of_node, "input", NULL))
+                input = true;
+
+        ret = gpio_request(gpio_num, "poweroff-gpio");
+        if (ret) {
+                pr_err("%s: Could not get GPIO %d", __func__, gpio_num);
+                return ret;
+        }
+        if (input) {
+                if (gpio_direction_input(gpio_num)) {
+                        pr_err("Could not set direction of GPIO %d to input",
+                               gpio_num);
+                        goto err;
+                }
+        } else {
+                if (gpio_direction_output(gpio_num, gpio_active_low)) {
+                        pr_err("Could not set direction of GPIO %d", gpio_num);
+                        goto err;
+                }
+        }
+
+        pm_power_off = &gpio_poweroff_do_poweroff;
+        return 0;
+
+err:
+        gpio_free(gpio_num);
+        return -ENODEV;
+}
+
+static int __devexit gpio_poweroff_remove(struct platform_device *pdev)
+{
+        if (gpio_num != -1)
+                gpio_free(gpio_num);
+        if (pm_power_off == &gpio_poweroff_do_poweroff)
+                pm_power_off = NULL;
+
+        return 0;
+}
+
+static const struct of_device_id of_gpio_poweroff_match[] = {
+        { .compatible = "gpio-poweroff", },
+        {},
+};
+
+static struct platform_driver gpio_poweroff_driver = {
+        .probe = gpio_poweroff_probe,
+        .remove = __devexit_p(gpio_poweroff_remove),
+        .driver = {
+                   .name = "poweroff-gpio",
+                   .owner = THIS_MODULE,
+                   .of_match_table = of_gpio_poweroff_match,
+                   },
+};
+
+module_platform_driver(gpio_poweroff_driver);
+
+MODULE_AUTHOR("Jamie Lentin <jm@lentin.co.uk>");
+MODULE_DESCRIPTION("GPIO poweroff driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:poweroff-gpio");