13 files changed, 165 insertions, 248 deletions

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index ecb743bf05a5..536562c626a2 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -24,7 +24,7 @@ acpi-y				+= nvs.o
 # Power management related files
 acpi-y				+= wakeup.o
 acpi-y				+= sleep.o
-acpi-$(CONFIG_PM)		+= device_pm.o
+acpi-y				+= device_pm.o
 acpi-$(CONFIG_ACPI_SLEEP)	+= proc.o
 
 
@@ -38,7 +38,6 @@ acpi-y				+= processor_core.o
 acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
 acpi-y				+= pci_root.o pci_link.o pci_irq.o
-acpi-y				+= csrt.o
 acpi-$(CONFIG_X86_INTEL_LPSS)	+= acpi_lpss.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= power.o
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 00d2efd674df..4f4e741d34b2 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -28,6 +28,8 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/dmi.h>
+#include <linux/delay.h>
 #ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
@@ -74,6 +76,8 @@ static int acpi_ac_resume(struct device *dev);
 #endif
 static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
 
+static int ac_sleep_before_get_state_ms;
+
 static struct acpi_driver acpi_ac_driver = {
 	.name = "ac",
 	.class = ACPI_AC_CLASS,
@@ -252,6 +256,16 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
 	case ACPI_AC_NOTIFY_STATUS:
 	case ACPI_NOTIFY_BUS_CHECK:
 	case ACPI_NOTIFY_DEVICE_CHECK:
+		/*
+		 * A buggy BIOS may notify AC first and then sleep for
+		 * a specific time before doing actual operations in the
+		 * EC event handler (_Qxx). This will cause the AC state
+		 * reported by the ACPI event to be incorrect, so wait for a
+		 * specific time for the EC event handler to make progress.
+		 */
+		if (ac_sleep_before_get_state_ms > 0)
+			msleep(ac_sleep_before_get_state_ms);
+
 		acpi_ac_get_state(ac);
 		acpi_bus_generate_proc_event(device, event, (u32) ac->state);
 		acpi_bus_generate_netlink_event(device->pnp.device_class,
@@ -264,6 +278,24 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
 	return;
 }
 
+static int thinkpad_e530_quirk(const struct dmi_system_id *d)
+{
+	ac_sleep_before_get_state_ms = 1000;
+	return 0;
+}
+
+static struct dmi_system_id ac_dmi_table[] = {
+	{
+	.callback = thinkpad_e530_quirk,
+	.ident = "thinkpad e530",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"),
+		},
+	},
+	{},
+};
+
 static int acpi_ac_add(struct acpi_device *device)
 {
 	int result = 0;
@@ -312,6 +344,7 @@ static int acpi_ac_add(struct acpi_device *device)
 		kfree(ac);
 	}
 
+	dmi_check_system(ac_dmi_table);
 	return result;
 }
 
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index b1c95422ce74..652fd5ce303c 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -35,11 +35,16 @@ ACPI_MODULE_NAME("acpi_lpss");
 
 struct lpss_device_desc {
 	bool clk_required;
-	const char *clk_parent;
+	const char *clkdev_name;
 	bool ltr_required;
 	unsigned int prv_offset;
 };
 
+static struct lpss_device_desc lpss_dma_desc = {
+	.clk_required = true,
+	.clkdev_name = "hclk",
+};
+
 struct lpss_private_data {
 	void __iomem *mmio_base;
 	resource_size_t mmio_size;
@@ -49,7 +54,6 @@ struct lpss_private_data {
 
 static struct lpss_device_desc lpt_dev_desc = {
 	.clk_required = true,
-	.clk_parent = "lpss_clk",
 	.prv_offset = 0x800,
 	.ltr_required = true,
 };
@@ -60,6 +64,9 @@ static struct lpss_device_desc lpt_sdio_dev_desc = {
 };
 
 static const struct acpi_device_id acpi_lpss_device_ids[] = {
+	/* Generic LPSS devices */
+	{ "INTL9C60", (unsigned long)&lpss_dma_desc },
+
 	/* Lynxpoint LPSS devices */
 	{ "INT33C0", (unsigned long)&lpt_dev_desc },
 	{ "INT33C1", (unsigned long)&lpt_dev_desc },
@@ -91,16 +98,27 @@ static int register_device_clock(struct acpi_device *adev,
 				 struct lpss_private_data *pdata)
 {
 	const struct lpss_device_desc *dev_desc = pdata->dev_desc;
+	struct lpss_clk_data *clk_data;
 
 	if (!lpss_clk_dev)
 		lpt_register_clock_device();
 
-	if (!dev_desc->clk_parent || !pdata->mmio_base
+	clk_data = platform_get_drvdata(lpss_clk_dev);
+	if (!clk_data)
+		return -ENODEV;
+
+	if (dev_desc->clkdev_name) {
+		clk_register_clkdev(clk_data->clk, dev_desc->clkdev_name,
+				    dev_name(&adev->dev));
+		return 0;
+	}
+
+	if (!pdata->mmio_base
 	    || pdata->mmio_size < dev_desc->prv_offset + LPSS_CLK_SIZE)
 		return -ENODATA;
 
 	pdata->clk = clk_register_gate(NULL, dev_name(&adev->dev),
-				       dev_desc->clk_parent, 0,
+				       clk_data->name, 0,
 				       pdata->mmio_base + dev_desc->prv_offset,
 				       0, 0, NULL);
 	if (IS_ERR(pdata->clk))
diff --git a/drivers/acpi/csrt.c b/drivers/acpi/csrt.c
deleted file mode 100644
index 5c15a91faf0b..000000000000
--- a/drivers/acpi/csrt.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Support for Core System Resources Table (CSRT)
- *
- * Copyright (C) 2013, Intel Corporation
- * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
- *	    Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- *
- * 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.
- */
-
-#define pr_fmt(fmt) "ACPI: CSRT: " fmt
-
-#include <linux/acpi.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/sizes.h>
-
-ACPI_MODULE_NAME("CSRT");
-
-static int __init acpi_csrt_parse_shared_info(struct platform_device *pdev,
-					      const struct acpi_csrt_group *grp)
-{
-	const struct acpi_csrt_shared_info *si;
-	struct resource res[3];
-	size_t nres;
-	int ret;
-
-	memset(res, 0, sizeof(res));
-	nres = 0;
-
-	si = (const struct acpi_csrt_shared_info *)&grp[1];
-	/*
-	 * The peripherals that are listed on CSRT typically support only
-	 * 32-bit addresses so we only use the low part of MMIO base for
-	 * now.
-	 */
-	if (!si->mmio_base_high && si->mmio_base_low) {
-		/*
-		 * There is no size of the memory resource in shared_info
-		 * so we assume that it is 4k here.
-		 */
-		res[nres].start = si->mmio_base_low;
-		res[nres].end = res[0].start + SZ_4K - 1;
-		res[nres++].flags = IORESOURCE_MEM;
-	}
-
-	if (si->gsi_interrupt) {
-		int irq = acpi_register_gsi(NULL, si->gsi_interrupt,
-					    si->interrupt_mode,
-					    si->interrupt_polarity);
-		res[nres].start = irq;
-		res[nres].end = irq;
-		res[nres++].flags = IORESOURCE_IRQ;
-	}
-
-	if (si->base_request_line || si->num_handshake_signals) {
-		/*
-		 * We pass the driver a DMA resource describing the range
-		 * of request lines the device supports.
-		 */
-		res[nres].start = si->base_request_line;
-		res[nres].end = res[nres].start + si->num_handshake_signals - 1;
-		res[nres++].flags = IORESOURCE_DMA;
-	}
-
-	ret = platform_device_add_resources(pdev, res, nres);
-	if (ret) {
-		if (si->gsi_interrupt)
-			acpi_unregister_gsi(si->gsi_interrupt);
-		return ret;
-	}
-
-	return 0;
-}
-
-static int __init
-acpi_csrt_parse_resource_group(const struct acpi_csrt_group *grp)
-{
-	struct platform_device *pdev;
-	char vendor[5], name[16];
-	int ret, i;
-
-	vendor[0] = grp->vendor_id;
-	vendor[1] = grp->vendor_id >> 8;
-	vendor[2] = grp->vendor_id >> 16;
-	vendor[3] = grp->vendor_id >> 24;
-	vendor[4] = '\0';
-
-	if (grp->shared_info_length != sizeof(struct acpi_csrt_shared_info))
-		return -ENODEV;
-
-	snprintf(name, sizeof(name), "%s%04X", vendor, grp->device_id);
-	pdev = platform_device_alloc(name, PLATFORM_DEVID_AUTO);
-	if (!pdev)
-		return -ENOMEM;
-
-	/* Add resources based on the shared info */
-	ret = acpi_csrt_parse_shared_info(pdev, grp);
-	if (ret)
-		goto fail;
-
-	ret = platform_device_add(pdev);
-	if (ret)
-		goto fail;
-
-	for (i = 0; i < pdev->num_resources; i++)
-		dev_dbg(&pdev->dev, "%pR\n", &pdev->resource[i]);
-
-	return 0;
-
-fail:
-	platform_device_put(pdev);
-	return ret;
-}
-
-/*
- * CSRT or Core System Resources Table is a proprietary ACPI table
- * introduced by Microsoft. This table can contain devices that are not in
- * the system DSDT table. In particular DMA controllers might be described
- * here.
- *
- * We present these devices as normal platform devices that don't have ACPI
- * IDs or handle. The platform device name will be something like
- * <VENDOR><DEVID>.<n>.auto for example: INTL9C06.0.auto.
- */
-void __init acpi_csrt_init(void)
-{
-	struct acpi_csrt_group *grp, *end;
-	struct acpi_table_csrt *csrt;
-	acpi_status status;
-	int ret;
-
-	status = acpi_get_table(ACPI_SIG_CSRT, 0,
-				(struct acpi_table_header **)&csrt);
-	if (ACPI_FAILURE(status)) {
-		if (status != AE_NOT_FOUND)
-			pr_warn("failed to get the CSRT table\n");
-		return;
-	}
-
-	pr_debug("parsing CSRT table for devices\n");
-
-	grp = (struct acpi_csrt_group *)(csrt + 1);
-	end = (struct acpi_csrt_group *)((void *)csrt + csrt->header.length);
-
-	while (grp < end) {
-		ret = acpi_csrt_parse_resource_group(grp);
-		if (ret) {
-			pr_warn("error in parsing resource group: %d\n", ret);
-			return;
-		}
-
-		grp = (struct acpi_csrt_group *)((void *)grp + grp->length);
-	}
-}
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 96de787e6104..bc493aa3af19 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -37,68 +37,6 @@
 #define _COMPONENT	ACPI_POWER_COMPONENT
 ACPI_MODULE_NAME("device_pm");
 
-static DEFINE_MUTEX(acpi_pm_notifier_lock);
-
-/**
- * acpi_add_pm_notifier - Register PM notifier for given ACPI device.
- * @adev: ACPI device to add the notifier for.
- * @context: Context information to pass to the notifier routine.
- *
- * NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
- * PM wakeup events.  For example, wakeup events may be generated for bridges
- * if one of the devices below the bridge is signaling wakeup, even if the
- * bridge itself doesn't have a wakeup GPE associated with it.
- */
-acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
-				 acpi_notify_handler handler, void *context)
-{
-	acpi_status status = AE_ALREADY_EXISTS;
-
-	mutex_lock(&acpi_pm_notifier_lock);
-
-	if (adev->wakeup.flags.notifier_present)
-		goto out;
-
-	status = acpi_install_notify_handler(adev->handle,
-					     ACPI_SYSTEM_NOTIFY,
-					     handler, context);
-	if (ACPI_FAILURE(status))
-		goto out;
-
-	adev->wakeup.flags.notifier_present = true;
-
- out:
-	mutex_unlock(&acpi_pm_notifier_lock);
-	return status;
-}
-
-/**
- * acpi_remove_pm_notifier - Unregister PM notifier from given ACPI device.
- * @adev: ACPI device to remove the notifier from.
- */
-acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
-				    acpi_notify_handler handler)
-{
-	acpi_status status = AE_BAD_PARAMETER;
-
-	mutex_lock(&acpi_pm_notifier_lock);
-
-	if (!adev->wakeup.flags.notifier_present)
-		goto out;
-
-	status = acpi_remove_notify_handler(adev->handle,
-					    ACPI_SYSTEM_NOTIFY,
-					    handler);
-	if (ACPI_FAILURE(status))
-		goto out;
-
-	adev->wakeup.flags.notifier_present = false;
-
- out:
-	mutex_unlock(&acpi_pm_notifier_lock);
-	return status;
-}
-
 /**
  * acpi_power_state_string - String representation of ACPI device power state.
  * @state: ACPI device power state to return the string representation of.
@@ -385,6 +323,69 @@ bool acpi_bus_power_manageable(acpi_handle handle)
 }
 EXPORT_SYMBOL(acpi_bus_power_manageable);
 
+#ifdef CONFIG_PM
+static DEFINE_MUTEX(acpi_pm_notifier_lock);
+
+/**
+ * acpi_add_pm_notifier - Register PM notifier for given ACPI device.
+ * @adev: ACPI device to add the notifier for.
+ * @context: Context information to pass to the notifier routine.
+ *
+ * NOTE: @adev need not be a run-wake or wakeup device to be a valid source of
+ * PM wakeup events.  For example, wakeup events may be generated for bridges
+ * if one of the devices below the bridge is signaling wakeup, even if the
+ * bridge itself doesn't have a wakeup GPE associated with it.
+ */
+acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
+				 acpi_notify_handler handler, void *context)
+{
+	acpi_status status = AE_ALREADY_EXISTS;
+
+	mutex_lock(&acpi_pm_notifier_lock);
+
+	if (adev->wakeup.flags.notifier_present)
+		goto out;
+
+	status = acpi_install_notify_handler(adev->handle,
+					     ACPI_SYSTEM_NOTIFY,
+					     handler, context);
+	if (ACPI_FAILURE(status))
+		goto out;
+
+	adev->wakeup.flags.notifier_present = true;
+
+ out:
+	mutex_unlock(&acpi_pm_notifier_lock);
+	return status;
+}
+
+/**
+ * acpi_remove_pm_notifier - Unregister PM notifier from given ACPI device.
+ * @adev: ACPI device to remove the notifier from.
+ */
+acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
+				    acpi_notify_handler handler)
+{
+	acpi_status status = AE_BAD_PARAMETER;
+
+	mutex_lock(&acpi_pm_notifier_lock);
+
+	if (!adev->wakeup.flags.notifier_present)
+		goto out;
+
+	status = acpi_remove_notify_handler(adev->handle,
+					    ACPI_SYSTEM_NOTIFY,
+					    handler);
+	if (ACPI_FAILURE(status))
+		goto out;
+
+	adev->wakeup.flags.notifier_present = false;
+
+ out:
+	mutex_unlock(&acpi_pm_notifier_lock);
+	return status;
+}
+
 bool acpi_bus_can_wakeup(acpi_handle handle)
 {
 	struct acpi_device *device;
@@ -1023,3 +1024,4 @@ void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev)
 	mutex_unlock(&adev->physical_node_lock);
 }
 EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent);
+#endif /* CONFIG_PM */
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d45b2871d33b..edc00818c803 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -223,7 +223,7 @@ static int ec_check_sci_sync(struct acpi_ec *ec, u8 state)
 static int ec_poll(struct acpi_ec *ec)
 {
 	unsigned long flags;
-	int repeat = 2; /* number of command restarts */
+	int repeat = 5; /* number of command restarts */
 	while (repeat--) {
 		unsigned long delay = jiffies +
 			msecs_to_jiffies(ec_delay);
@@ -241,8 +241,6 @@ static int ec_poll(struct acpi_ec *ec)
 			}
 			advance_transaction(ec, acpi_ec_read_status(ec));
 		} while (time_before(jiffies, delay));
-		if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
-			break;
 		pr_debug(PREFIX "controller reset, restart transaction\n");
 		spin_lock_irqsave(&ec->lock, flags);
 		start_transaction(ec);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 6f1afd9118c8..297cbf456f86 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -35,7 +35,6 @@ void acpi_pci_link_init(void);
 void acpi_pci_root_hp_init(void);
 void acpi_platform_init(void);
 int acpi_sysfs_init(void);
-void acpi_csrt_init(void);
 #ifdef CONFIG_ACPI_CONTAINER
 void acpi_container_init(void);
 #else
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 1dd6f6c85874..e427dc516c76 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -641,7 +641,9 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 		/* bus enumerate */
 		printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
 				 (char *)buffer.pointer);
-		if (!root)
+		if (root)
+			acpiphp_check_host_bridge(handle);
+		else
 			handle_root_bridge_insertion(handle);
 
 		break;
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index bec717ffd25f..c266cdc11784 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -95,9 +95,6 @@ static const struct acpi_device_id processor_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, processor_device_ids);
 
-static SIMPLE_DEV_PM_OPS(acpi_processor_pm,
-			 acpi_processor_suspend, acpi_processor_resume);
-
 static struct acpi_driver acpi_processor_driver = {
 	.name = "processor",
 	.class = ACPI_PROCESSOR_CLASS,
@@ -107,7 +104,6 @@ static struct acpi_driver acpi_processor_driver = {
 		.remove = acpi_processor_remove,
 		.notify = acpi_processor_notify,
 		},
-	.drv.pm = &acpi_processor_pm,
 };
 
 #define INSTALL_NOTIFY_HANDLER		1
@@ -934,6 +930,8 @@ static int __init acpi_processor_init(void)
 	if (result < 0)
 		return result;
 
+	acpi_processor_syscore_init();
+
 	acpi_processor_install_hotplug_notify();
 
 	acpi_thermal_cpufreq_init();
@@ -956,6 +954,8 @@ static void __exit acpi_processor_exit(void)
 
 	acpi_processor_uninstall_hotplug_notify();
 
+	acpi_processor_syscore_exit();
+
 	acpi_bus_unregister_driver(&acpi_processor_driver);
 
 	return;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f0df2c9434d2..eb133c77aadb 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -34,6 +34,7 @@
 #include <linux/sched.h>       /* need_resched() */
 #include <linux/clockchips.h>
 #include <linux/cpuidle.h>
+#include <linux/syscore_ops.h>
 
 /*
  * Include the apic definitions for x86 to have the APIC timer related defines
@@ -210,33 +211,41 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr,
 
 #endif
 
+#ifdef CONFIG_PM_SLEEP
 static u32 saved_bm_rld;
 
-static void acpi_idle_bm_rld_save(void)
+int acpi_processor_suspend(void)
 {
 	acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld);
+	return 0;
 }
-static void acpi_idle_bm_rld_restore(void)
+
+void acpi_processor_resume(void)
 {
 	u32 resumed_bm_rld;
 
 	acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld);
+	if (resumed_bm_rld == saved_bm_rld)
+		return;
 
-	if (resumed_bm_rld != saved_bm_rld)
-		acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
+	acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
 }
 
-int acpi_processor_suspend(struct device *dev)
+static struct syscore_ops acpi_processor_syscore_ops = {
+	.suspend = acpi_processor_suspend,
+	.resume = acpi_processor_resume,
+};
+
+void acpi_processor_syscore_init(void)
 {
-	acpi_idle_bm_rld_save();
-	return 0;
+	register_syscore_ops(&acpi_processor_syscore_ops);
 }
 
-int acpi_processor_resume(struct device *dev)
+void acpi_processor_syscore_exit(void)
 {
-	acpi_idle_bm_rld_restore();
-	return 0;
+	unregister_syscore_ops(&acpi_processor_syscore_ops);
 }
+#endif /* CONFIG_PM_SLEEP */
 
 #if defined(CONFIG_X86)
 static void tsc_check_state(int state)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fe158fd4f1df..44225cb15f3a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1785,7 +1785,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type)
 	acpi_set_pnp_ids(handle, &pnp, type);
 
 	if (!pnp.type.hardware_id)
-		return;
+		goto out;
 
 	/*
 	 * This relies on the fact that acpi_install_notify_handler() will not
@@ -1800,6 +1800,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type)
 		}
 	}
 
+out:
 	acpi_free_pnp_ids(&pnp);
 }
 
@@ -2042,7 +2043,6 @@ int __init acpi_scan_init(void)
 	acpi_pci_link_init();
 	acpi_platform_init();
 	acpi_lpss_init();
-	acpi_csrt_init();
 	acpi_container_init();
 	acpi_memory_hotplug_init();
 
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index c3932d0876e0..5b32e15a65ce 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -456,6 +456,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP 1000 Notebook PC",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+		},
+	},
 	{}
 };
 
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 66f67626f02e..e6bd910bc6ed 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -161,6 +161,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"),
 		},
 	},
+	{
+	.callback = video_detect_force_vendor,
+	.ident = "Asus UL30A",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
+		},
+	},
 	{ },
 };