Merge tag 'for-v3.9' of git://git.infradead.org/battery-2.6

Pull battery updates from Anton Vorontsov:
 "Four new drivers:

   - goldfish_battery:

     This is Android Emulator battery driver.  Originally from Google,
     but Intel folks reshaped it for mainline

   - pm2301_charger:

     A new driver for ST-Ericsson 2301 Power Management chip, uses
     AB8500 battery management core

   - qnap-poweroff:

     The driver adds poweroff functionality for QNAP NAS boxes

   - restart-poweroff:

     A generic driver that implements 'power off by restarting'.  The
     actual poweroff functionality is implemented through a bootloader,
     so Linux' task is just to restart the box.  The driver is useful on
     Buffalo Linkstation LS-XHL and LS-CHLv2 boards.  Andrew Lunn worked
     on submitting the driver (as well as qnap-poweroff above).

  Additionally:

   - A lot of fixes for ab8500 drivers.  This is a part of efforts of
     syncing internal ST-Ericsson development tree with the mainline.
     Lee Jones @ Linaro worked on compilation and reshaping these
     series.

   - New health properties for the power supplies: "Watchdog timer
     expire" and "Safety timer expire"

   - As usual, a bunch of fixes/cleanups here and there"

* tag 'for-v3.9' of git://git.infradead.org/battery-2.6: (81 commits)
  bq2415x_charger: Add support for offline and 100mA mode
  generic-adc-battery: Fix forever loop in gab_remove()
  goldfish_battery: Add missing GENERIC_HARDIRQS dependency
  da9030_battery: Include notifier.h
  bq27x00_battery: Fix reporting battery temperature
  power/reset: Remove newly introduced __dev* annotations
  lp8727_charger: Small cleanup in naming
  ab8500_btemp: Demote initcall sequence
  ds2782_battery: Add power_supply_changed() calls for proper uevent support
  power: Add battery driver for goldfish emulator
  u8500-charger: Delay for USB enumeration
  ab8500-bm: Remove individual [charger|btemp|fg|chargalg] pdata structures
  ab8500-charger: Do not touch VBUSOVV bits
  ab8500-fg: Use correct battery charge full design
  pm2301: LPN mode control support
  pm2301: Enable vbat low monitoring
  ab8500-bm: Flush all work queues before suspending
  ab8500-fg: Go to INIT_RECOVERY when charger removed
  ab8500-charger: Add support for autopower on AB8505 and AB9540
  abx500-chargalg: Add new sysfs interface to get current charge status
  ...

Fix up fairly straightforward conflicts in the ab8500 driver.  But since
it seems to be ARM-specific, I can't even compile-test the result..

1 files changed, 116 insertions, 0 deletions

diff --git a/drivers/power/reset/qnap-poweroff.c b/drivers/power/reset/qnap-poweroff.c
new file mode 100644
index 00000000000..37f56f7ee92
--- /dev/null
+++ b/drivers/power/reset/qnap-poweroff.c
@@ -0,0 +1,116 @@
+/*
+ * QNAP Turbo NAS Board power off
+ *
+ * Copyright (C) 2012 Andrew Lunn <andrew@lunn.ch>
+ *
+ * Based on the code from:
+ *
+ * Copyright (C) 2009  Martin Michlmayr <tbm@cyrius.com>
+ * Copyright (C) 2008  Byron Bradley <byron.bbradley@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/serial_reg.h>
+#include <linux/kallsyms.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+
+#define UART1_REG(x)	(base + ((UART_##x) << 2))
+
+static void __iomem *base;
+static unsigned long tclk;
+
+static void qnap_power_off(void)
+{
+	/* 19200 baud divisor */
+	const unsigned divisor = ((tclk + (8 * 19200)) / (16 * 19200));
+
+	pr_err("%s: triggering power-off...\n", __func__);
+
+	/* hijack UART1 and reset into sane state (19200,8n1) */
+	writel(0x83, UART1_REG(LCR));
+	writel(divisor & 0xff, UART1_REG(DLL));
+	writel((divisor >> 8) & 0xff, UART1_REG(DLM));
+	writel(0x03, UART1_REG(LCR));
+	writel(0x00, UART1_REG(IER));
+	writel(0x00, UART1_REG(FCR));
+	writel(0x00, UART1_REG(MCR));
+
+	/* send the power-off command 'A' to PIC */
+	writel('A', UART1_REG(TX));
+}
+
+static int qnap_power_off_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct clk *clk;
+	char symname[KSYM_NAME_LEN];
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Missing resource");
+		return -EINVAL;
+	}
+
+	base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!base) {
+		dev_err(&pdev->dev, "Unable to map resource");
+		return -EINVAL;
+	}
+
+	/* We need to know tclk in order to calculate the UART divisor */
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Clk missing");
+		return PTR_ERR(clk);
+	}
+
+	tclk = clk_get_rate(clk);
+
+	/* Check that nothing else has already setup a handler */
+	if (pm_power_off) {
+		lookup_symbol_name((ulong)pm_power_off, symname);
+		dev_err(&pdev->dev,
+			"pm_power_off already claimed %p %s",
+			pm_power_off, symname);
+		return -EBUSY;
+	}
+	pm_power_off = qnap_power_off;
+
+	return 0;
+}
+
+static int qnap_power_off_remove(struct platform_device *pdev)
+{
+	pm_power_off = NULL;
+	return 0;
+}
+
+static const struct of_device_id qnap_power_off_of_match_table[] = {
+	{ .compatible = "qnap,power-off", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, qnap_power_off_of_match_table);
+
+static struct platform_driver qnap_power_off_driver = {
+	.probe	= qnap_power_off_probe,
+	.remove	= qnap_power_off_remove,
+	.driver	= {
+		.owner	= THIS_MODULE,
+		.name	= "qnap_power_off",
+		.of_match_table = of_match_ptr(qnap_power_off_of_match_table),
+	},
+};
+module_platform_driver(qnap_power_off_driver);
+
+MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch>");
+MODULE_DESCRIPTION("QNAP Power off driver");
+MODULE_LICENSE("GPL v2");