---

yaml
---
r: 250572
b: refs/heads/master
c: 99b38b4
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 776f2b7cb473baa52cdeee9804073342dee7d7cb
+refs/heads/master: 99b38b4acc0d7dbbab443273577cff60080fcfad

trunk/drivers/gpu/drm/radeon/radeon_combios.c

@@ -544,26 +544,20 @@ static struct radeon_i2c_bus_rec combios_setup_i2c_bus(struct radeon_device *rde
 		    rdev->family == CHIP_RS480)
 			ddc_line = RADEON_GPIOPAD_MASK;
 		else if (rdev->family == CHIP_R300 ||
-			 rdev->family == CHIP_R350) {
+			 rdev->family == CHIP_R350)
 			ddc_line = RADEON_GPIO_DVI_DDC;
-			ddc = DDC_DVI;
-		} else
+		else
 			ddc_line = RADEON_GPIO_MONID;
 		break;
 	case DDC_CRT2:
 		if (rdev->family == CHIP_R200 ||
 		    rdev->family == CHIP_R300 ||
-		    rdev->family == CHIP_R350) {
+		    rdev->family == CHIP_R350)
 			ddc_line = RADEON_GPIO_DVI_DDC;
-			ddc = DDC_DVI;
-		} else if (rdev->family == CHIP_RS300 ||
-			   rdev->family == CHIP_RS400 ||
-			   rdev->family == CHIP_RS480)
-			ddc_line = RADEON_GPIO_MONID;
-		else if (rdev->family >= CHIP_RV350) {
+		else if (rdev->family == CHIP_RS300 ||
+			 rdev->family >= CHIP_RV350)
 			ddc_line = RADEON_GPIO_MONID;
-			ddc = DDC_MONID;
-		} else
+		else
 			ddc_line = RADEON_GPIO_CRT2_DDC;
 		break;
 	}

trunk/drivers/platform/x86/Kconfig

@@ -753,4 +753,11 @@ config SAMSUNG_LAPTOP
 	  To compile this driver as a module, choose M here: the module
 	  will be called samsung-laptop.
 
+config MXM_WMI
+       tristate "WMI support for MXM Laptop Graphics"
+       depends on WMI
+       ---help---
+          MXM is a standard for laptop graphics cards, the WMI interface
+	  is required for switchable nvidia graphics machines
+
 endif # X86_PLATFORM_DEVICES

trunk/drivers/platform/x86/Makefile

@@ -42,3 +42,4 @@ obj-$(CONFIG_XO15_EBOOK)	+= xo15-ebook.o
 obj-$(CONFIG_IBM_RTL)		+= ibm_rtl.o
 obj-$(CONFIG_SAMSUNG_LAPTOP)	+= samsung-laptop.o
 obj-$(CONFIG_INTEL_MFLD_THERMAL)	+= intel_mid_thermal.o
+obj-$(CONFIG_MXM_WMI)		+= mxm-wmi.o

trunk/drivers/platform/x86/mxm-wmi.c

@@ -0,0 +1,85 @@
+/*
+ * MXM WMI driver
+ *
+ * Copyright(C) 2010 Red Hat.
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+MODULE_AUTHOR("Dave Airlie");
+MODULE_DESCRIPTION("MXM WMI Driver");
+MODULE_LICENSE("GPL");
+
+#define MXM_WMMX_GUID "F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0"
+
+MODULE_ALIAS("wmi:"MXM_WMMX_GUID);
+
+#define MXM_WMMX_FUNC_MXDS 0x5344584D /* "MXDS" */
+
+struct mxds_args {
+	u32 func;
+	u32 args;
+	u32 xarg;
+};
+
+int mxm_wmi_call_mxds(int adapter)
+{
+	struct mxds_args args = {
+		.func = MXM_WMMX_FUNC_MXDS,
+		.args = 0,
+		.xarg = 1,
+	};
+	struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
+	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
+	acpi_status status;
+
+	printk("calling mux switch %d\n", adapter);
+
+	status = wmi_evaluate_method(MXM_WMMX_GUID, 0x1, adapter, &input,
+				     &output);
+
+	if (ACPI_FAILURE(status))
+		return status;
+
+	printk("mux switched %d\n", status);
+	return 0;
+
+}
+EXPORT_SYMBOL_GPL(mxm_wmi_call_mxds);
+
+bool mxm_wmi_supported(void)
+{
+	bool guid_valid;
+	guid_valid = wmi_has_guid(MXM_WMMX_GUID);
+	return guid_valid;
+}
+EXPORT_SYMBOL_GPL(mxm_wmi_supported);
+
+static int __init mxm_wmi_init(void)
+{
+	return 0;
+}
+
+static void __exit mxm_wmi_exit(void)
+{
+}
+
+module_init(mxm_wmi_init);
+module_exit(mxm_wmi_exit);

trunk/include/linux/mxm-wmi.h

@@ -0,0 +1,32 @@
+/*
+ * MXM WMI driver
+ *
+ * Copyright(C) 2010 Red Hat.
+ *
+ *  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.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef MXM_WMI_H
+#define MXM_WMI_H
+
+/* discrete adapters */
+#define MXM_MXDS_ADAPTER_0 0x0
+#define MXM_MXDS_ADAPTER_1 0x0
+/* integrated adapter */
+#define MXM_MXDS_ADAPTER_IGD 0x10
+int mxm_wmi_call_mxds(int adapter);
+bool mxm_wmi_supported(void);
+
+#endif