Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: (44 commits)
  eeepc-wmi: Add cpufv sysfs interface
  eeepc-wmi: add additional hotkeys
  panasonic-laptop: Simplify calls to acpi_pcc_retrieve_biosdata
  panasonic-laptop: Handle errors properly if they happen
  intel_pmic_gpio: fix off-by-one value range checking
  IBM Real-Time "SMI Free" mode driver -v7
  Add OLPC XO-1 rfkill driver
  Move hdaps driver to platform/x86
  ideapad-laptop: Fix Makefile
  intel_pmic_gpio: swap the bits and mask args for intel_scu_ipc_update_register
  ideapad: Add param: no_bt_rfkill
  ideapad: Change the driver name to ideapad-laptop
  ideapad: rewrite the sw rfkill set
  ideapad: rewrite the hw rfkill notify
  ideapad: use EC command to control camera
  ideapad: use return value of _CFG to tell if device exist or not
  ideapad: make sure we bind on the correct device
  ideapad: check VPC bit before sync rfkill hw status
  ideapad: add ACPI helpers
  dell-laptop: Add debugfs support
  ...

1 files changed, 85 insertions, 0 deletions

diff --git a/drivers/platform/x86/xo1-rfkill.c b/drivers/platform/x86/xo1-rfkill.c
new file mode 100644
index 0000000..e549eee
--- /dev/null
+++ b/drivers/platform/x86/xo1-rfkill.c
@@ -0,0 +1,85 @@
+/*
+ * Support for rfkill through the OLPC XO-1 laptop embedded controller
+ *
+ * Copyright (C) 2010 One Laptop per Child
+ *
+ * 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/module.h>
+#include <linux/platform_device.h>
+#include <linux/rfkill.h>
+
+#include <asm/olpc.h>
+
+static int rfkill_set_block(void *data, bool blocked)
+{
+	unsigned char cmd;
+	if (blocked)
+		cmd = EC_WLAN_ENTER_RESET;
+	else
+		cmd = EC_WLAN_LEAVE_RESET;
+
+	return olpc_ec_cmd(cmd, NULL, 0, NULL, 0);
+}
+
+static const struct rfkill_ops rfkill_ops = {
+	.set_block = rfkill_set_block,
+};
+
+static int __devinit xo1_rfkill_probe(struct platform_device *pdev)
+{
+	struct rfkill *rfk;
+	int r;
+
+	rfk = rfkill_alloc(pdev->name, &pdev->dev, RFKILL_TYPE_WLAN,
+			   &rfkill_ops, NULL);
+	if (!rfk)
+		return -ENOMEM;
+
+	r = rfkill_register(rfk);
+	if (r) {
+		rfkill_destroy(rfk);
+		return r;
+	}
+
+	platform_set_drvdata(pdev, rfk);
+	return 0;
+}
+
+static int __devexit xo1_rfkill_remove(struct platform_device *pdev)
+{
+	struct rfkill *rfk = platform_get_drvdata(pdev);
+	rfkill_unregister(rfk);
+	rfkill_destroy(rfk);
+	return 0;
+}
+
+static struct platform_driver xo1_rfkill_driver = {
+	.driver = {
+		.name = "xo1-rfkill",
+		.owner = THIS_MODULE,
+	},
+	.probe		= xo1_rfkill_probe,
+	.remove		= __devexit_p(xo1_rfkill_remove),
+};
+
+static int __init xo1_rfkill_init(void)
+{
+	return platform_driver_register(&xo1_rfkill_driver);
+}
+
+static void __exit xo1_rfkill_exit(void)
+{
+	platform_driver_unregister(&xo1_rfkill_driver);
+}
+
+MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:xo1-rfkill");
+
+module_init(xo1_rfkill_init);
+module_exit(xo1_rfkill_exit);