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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-22 09:42:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-22 09:43:22 -0700
commit23904815461ba223a8baf7490051597fa054299b (patch)
tree2d52ce8ff18c4f731183d0b10048eb74489a3391 /arch/x86
parent754b9800779402924fffe456b49d557e15260cbf (diff)
parentfa63030e9c79e37b4d4e63b39ffb09cfb7aa0fe4 (diff)
downloadlinux-23904815461ba223a8baf7490051597fa054299b.tar.bz2
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform changes from Ingo Molnar. Removes the Moorestown platform that nobody ever used. * 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform: Move APIC ID validity check into platform APIC code x86/olpc/xo15/sci: Enable lid close wakeup control x86/geode/net5501: Add platform driver for Soekris Engineering net5501 x86/geode/alix2: Supplement driver to include GPIO button support x86/mid/powerbtn: Use MSIC read/write instead of ipc_scu x86/mid/thermal: Turn off thermistor x86/mid/thermal: Add msic_thermal alias x86/mid/thermal: Convert to use Intel MSIC API x86/mid/scu_ipc: Remove Moorestown support x86/mid: Kill off Moorestown x86/mrst: Add msic_thermal platform support x86/config: Select MSIC MFD driver on Intel Medfield platform x86/mid: Remove Intel Moorestown x86/mrst: Set ISA bus type for fake MP IRQs x86/ioapic: Use legacy_pic to set correct gsi-irq mapping
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/Kconfig28
-rw-r--r--arch/x86/include/asm/apic.h6
-rw-r--r--arch/x86/include/asm/mrst.h4
-rw-r--r--arch/x86/kernel/apic/apic_flat_64.c2
-rw-r--r--arch/x86/kernel/apic/apic_noop.c1
-rw-r--r--arch/x86/kernel/apic/apic_numachip.c10
-rw-r--r--arch/x86/kernel/apic/bigsmp_32.c1
-rw-r--r--arch/x86/kernel/apic/es7000_32.c2
-rw-r--r--arch/x86/kernel/apic/numaq_32.c1
-rw-r--r--arch/x86/kernel/apic/probe_32.c1
-rw-r--r--arch/x86/kernel/apic/summit_32.c1
-rw-r--r--arch/x86/kernel/apic/x2apic_cluster.c1
-rw-r--r--arch/x86/kernel/apic/x2apic_phys.c1
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c1
-rw-r--r--arch/x86/kernel/smpboot.c2
-rw-r--r--arch/x86/platform/geode/Makefile1
-rw-r--r--arch/x86/platform/geode/alix.c76
-rw-r--r--arch/x86/platform/geode/net5501.c154
-rw-r--r--arch/x86/platform/mrst/Makefile1
-rw-r--r--arch/x86/platform/mrst/mrst.c70
-rw-r--r--arch/x86/platform/mrst/pmu.c817
-rw-r--r--arch/x86/platform/mrst/pmu.h234
-rw-r--r--arch/x86/platform/olpc/olpc-xo15-sci.c72
23 files changed, 360 insertions, 1127 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6c29256a71a6..901952355969 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -422,27 +422,6 @@ if X86_WANT_INTEL_MID
config X86_INTEL_MID
bool
-config X86_MRST
- bool "Moorestown MID platform"
- depends on PCI
- depends on PCI_GOANY
- depends on X86_IO_APIC
- select X86_INTEL_MID
- select SFI
- select DW_APB_TIMER
- select APB_TIMER
- select I2C
- select SPI
- select INTEL_SCU_IPC
- select X86_PLATFORM_DEVICES
- ---help---
- Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin
- Internet Device(MID) platform. Moorestown consists of two chips:
- Lincroft (CPU core, graphics, and memory controller) and Langwell IOH.
- Unlike standard x86 PCs, Moorestown does not have many legacy devices
- nor standard legacy replacement devices/features. e.g. Moorestown does
- not contain i8259, i8254, HPET, legacy BIOS, most of the io ports.
-
config X86_MDFLD
bool "Medfield MID platform"
depends on PCI
@@ -456,6 +435,7 @@ config X86_MDFLD
select SPI
select INTEL_SCU_IPC
select X86_PLATFORM_DEVICES
+ select MFD_INTEL_MSIC
---help---
Medfield is Intel's Low Power Intel Architecture (LPIA) based Moblin
Internet Device(MID) platform.
@@ -2139,6 +2119,12 @@ config ALIX
Note: You have to set alix.force=1 for boards with Award BIOS.
+config NET5501
+ bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
+ select GPIOLIB
+ ---help---
+ This option enables system support for the Soekris Engineering net5501.
+
endif # X86_32
config AMD_NB
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 3ab9bdd87e79..a9371c91718c 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -288,6 +288,7 @@ struct apic {
int (*probe)(void);
int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
+ int (*apic_id_valid)(int apicid);
int (*apic_id_registered)(void);
u32 irq_delivery_mode;
@@ -532,6 +533,11 @@ static inline unsigned int read_apic_id(void)
return apic->get_apic_id(reg);
}
+static inline int default_apic_id_valid(int apicid)
+{
+ return x2apic_mode || (apicid < 255);
+}
+
extern void default_setup_apic_routing(void);
extern struct apic apic_noop;
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
index 0a0a95460434..fc18bf3ce7c8 100644
--- a/arch/x86/include/asm/mrst.h
+++ b/arch/x86/include/asm/mrst.h
@@ -26,8 +26,8 @@ extern struct sfi_rtc_table_entry sfi_mrtc_array[];
* identified via MSRs.
*/
enum mrst_cpu_type {
- MRST_CPU_CHIP_LINCROFT = 1,
- MRST_CPU_CHIP_PENWELL,
+ /* 1 was Moorestown */
+ MRST_CPU_CHIP_PENWELL = 2,
};
extern enum mrst_cpu_type __mrst_cpu_chip;
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index 8c3cdded6f2b..359b6899a36c 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -180,6 +180,7 @@ static struct apic apic_flat = {
.name = "flat",
.probe = flat_probe,
.acpi_madt_oem_check = flat_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = flat_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
@@ -337,6 +338,7 @@ static struct apic apic_physflat = {
.name = "physical flat",
.probe = physflat_probe,
.acpi_madt_oem_check = physflat_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = flat_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 775b82bc655c..634ae6cdd5c9 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -124,6 +124,7 @@ struct apic apic_noop = {
.probe = noop_probe,
.acpi_madt_oem_check = NULL,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = noop_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 09d3d8c1cd99..d9ea5f331ac5 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -56,6 +56,12 @@ static unsigned int read_xapic_id(void)
return get_apic_id(apic_read(APIC_ID));
}
+static int numachip_apic_id_valid(int apicid)
+{
+ /* Trust what bootloader passes in MADT */
+ return 1;
+}
+
static int numachip_apic_id_registered(void)
{
return physid_isset(read_xapic_id(), phys_cpu_present_map);
@@ -223,10 +229,11 @@ static int __init numachip_system_init(void)
}
early_initcall(numachip_system_init);
-static int numachip_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static int __cpuinit numachip_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
if (!strncmp(oem_id, "NUMASC", 6)) {
numachip_system = 1;
+ setup_force_cpu_cap(X86_FEATURE_X2APIC);
return 1;
}
@@ -238,6 +245,7 @@ static struct apic apic_numachip __refconst = {
.name = "NumaConnect system",
.probe = numachip_probe,
.acpi_madt_oem_check = numachip_acpi_madt_oem_check,
+ .apic_id_valid = numachip_apic_id_valid,
.apic_id_registered = numachip_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 521bead01137..0cdec7065aff 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -198,6 +198,7 @@ static struct apic apic_bigsmp = {
.name = "bigsmp",
.probe = probe_bigsmp,
.acpi_madt_oem_check = NULL,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = bigsmp_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/apic/es7000_32.c b/arch/x86/kernel/apic/es7000_32.c
index 5d513bc47b6b..e42d1d3b9134 100644
--- a/arch/x86/kernel/apic/es7000_32.c
+++ b/arch/x86/kernel/apic/es7000_32.c
@@ -625,6 +625,7 @@ static struct apic __refdata apic_es7000_cluster = {
.name = "es7000",
.probe = probe_es7000,
.acpi_madt_oem_check = es7000_acpi_madt_oem_check_cluster,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = es7000_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
@@ -690,6 +691,7 @@ static struct apic __refdata apic_es7000 = {
.name = "es7000",
.probe = probe_es7000,
.acpi_madt_oem_check = es7000_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = es7000_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/apic/numaq_32.c b/arch/x86/kernel/apic/numaq_32.c
index c4a61ca1349a..00d2422ca7c9 100644
--- a/arch/x86/kernel/apic/numaq_32.c
+++ b/arch/x86/kernel/apic/numaq_32.c
@@ -478,6 +478,7 @@ static struct apic __refdata apic_numaq = {
.name = "NUMAQ",
.probe = probe_numaq,
.acpi_madt_oem_check = NULL,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = numaq_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 0787bb3412f4..ff2c1b9aac4d 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -92,6 +92,7 @@ static struct apic apic_default = {
.name = "default",
.probe = probe_default,
.acpi_madt_oem_check = NULL,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = default_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
diff --git a/arch/x86/kernel/apic/summit_32.c b/arch/x86/kernel/apic/summit_32.c
index 19114423c58c..fea000b27f07 100644
--- a/arch/x86/kernel/apic/summit_32.c
+++ b/arch/x86/kernel/apic/summit_32.c
@@ -496,6 +496,7 @@ static struct apic apic_summit = {
.name = "summit",
.probe = probe_summit,
.acpi_madt_oem_check = summit_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = summit_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 500795875827..9193713060a9 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -213,6 +213,7 @@ static struct apic apic_x2apic_cluster = {
.name = "cluster x2apic",
.probe = x2apic_cluster_probe,
.acpi_madt_oem_check = x2apic_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = x2apic_apic_id_registered,
.irq_delivery_mode = dest_LowestPrio,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index f5373dfde21e..bcd1db6eaca9 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -119,6 +119,7 @@ static struct apic apic_x2apic_phys = {
.name = "physical x2apic",
.probe = x2apic_phys_probe,
.acpi_madt_oem_check = x2apic_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = x2apic_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 79b05b88aa19..fc4771425852 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -351,6 +351,7 @@ static struct apic __refdata apic_x2apic_uv_x = {
.name = "UV large system",
.probe = uv_probe,
.acpi_madt_oem_check = uv_acpi_madt_oem_check,
+ .apic_id_valid = default_apic_id_valid,
.apic_id_registered = uv_apic_id_registered,
.irq_delivery_mode = dest_Fixed,
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index dccebbe758ca..e578a79a3093 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -833,7 +833,7 @@ int __cpuinit native_cpu_up(unsigned int cpu)
if (apicid == BAD_APICID || apicid == boot_cpu_physical_apicid ||
!physid_isset(apicid, phys_cpu_present_map) ||
- (!x2apic_mode && apicid >= 255)) {
+ !apic->apic_id_valid(apicid)) {
printk(KERN_ERR "%s: bad cpu %d\n", __func__, cpu);
return -EINVAL;
}
diff --git a/arch/x86/platform/geode/Makefile b/arch/x86/platform/geode/Makefile
index 07c9cd05021a..246b788847ff 100644
--- a/arch/x86/platform/geode/Makefile
+++ b/arch/x86/platform/geode/Makefile
@@ -1 +1,2 @@
obj-$(CONFIG_ALIX) += alix.o
+obj-$(CONFIG_NET5501) += net5501.o
diff --git a/arch/x86/platform/geode/alix.c b/arch/x86/platform/geode/alix.c
index dc5f1d32aced..90e23e7679a5 100644
--- a/arch/x86/platform/geode/alix.c
+++ b/arch/x86/platform/geode/alix.c
@@ -6,6 +6,7 @@
*
* Copyright (C) 2008 Constantin Baranov <const@mimas.ru>
* Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com>
+ * and Philip Prindeville <philipp@redfish-solutions.com>
*
* TODO: There are large similarities with leds-net5501.c
* by Alessandro Zummo <a.zummo@towertech.it>
@@ -24,14 +25,47 @@
#include <linux/leds.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+#include <linux/dmi.h>
#include <asm/geode.h>
+#define BIOS_SIGNATURE_TINYBIOS 0xf0000
+#define BIOS_SIGNATURE_COREBOOT 0x500
+#define BIOS_REGION_SIZE 0x10000
+
static bool force = 0;
module_param(force, bool, 0444);
/* FIXME: Award bios is not automatically detected as Alix platform */
MODULE_PARM_DESC(force, "Force detection as ALIX.2/ALIX.3 platform");
+static struct gpio_keys_button alix_gpio_buttons[] = {
+ {
+ .code = KEY_RESTART,
+ .gpio = 24,
+ .active_low = 1,
+ .desc = "Reset button",
+ .type = EV_KEY,
+ .wakeup = 0,
+ .debounce_interval = 100,
+ .can_disable = 0,
+ }
+};
+static struct gpio_keys_platform_data alix_buttons_data = {
+ .buttons = alix_gpio_buttons,
+ .nbuttons = ARRAY_SIZE(alix_gpio_buttons),
+ .poll_interval = 20,
+};
+
+static struct platform_device alix_buttons_dev = {
+ .name = "gpio-keys-polled",
+ .id = 1,
+ .dev = {
+ .platform_data = &alix_buttons_data,
+ }
+};
+
static struct gpio_led alix_leds[] = {
{
.name = "alix:1",
@@ -64,17 +98,22 @@ static struct platform_device alix_leds_dev = {
.dev.platform_data = &alix_leds_data,
};
+static struct __initdata platform_device *alix_devs[] = {
+ &alix_buttons_dev,
+ &alix_leds_dev,
+};
+
static void __init register_alix(void)
{
/* Setup LED control through leds-gpio driver */
- platform_device_register(&alix_leds_dev);
+ platform_add_devices(alix_devs, ARRAY_SIZE(alix_devs));
}
-static int __init alix_present(unsigned long bios_phys,
+static bool __init alix_present(unsigned long bios_phys,
const char *alix_sig,
size_t alix_sig_len)
{
- const size_t bios_len = 0x00010000;
+ const size_t bios_len = BIOS_REGION_SIZE;
const char *bios_virt;
const char *scan_end;
const char *p;
@@ -84,7 +123,7 @@ static int __init alix_present(unsigned long bios_phys,
printk(KERN_NOTICE "%s: forced to skip BIOS test, "
"assume system is ALIX.2/ALIX.3\n",
KBUILD_MODNAME);
- return 1;
+ return true;
}
bios_virt = phys_to_virt(bios_phys);
@@ -109,15 +148,33 @@ static int __init alix_present(unsigned long bios_phys,
*a = '\0';
tail = p + alix_sig_len;
- if ((tail[0] == '2' || tail[0] == '3')) {
+ if ((tail[0] == '2' || tail[0] == '3' || tail[0] == '6')) {
printk(KERN_INFO
"%s: system is recognized as \"%s\"\n",
KBUILD_MODNAME, name);
- return 1;
+ return true;
}
}
- return 0;
+ return false;
+}
+
+static bool __init alix_present_dmi(void)
+{
+ const char *vendor, *product;
+
+ vendor = dmi_get_system_info(DMI_SYS_VENDOR);
+ if (!vendor || strcmp(vendor, "PC Engines"))
+ return false;
+
+ product = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!product || (strcmp(product, "ALIX.2D") && strcmp(product, "ALIX.6")))
+ return false;
+
+ printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n",
+ KBUILD_MODNAME, vendor, product);
+
+ return true;
}
static int __init alix_init(void)
@@ -128,8 +185,9 @@ static int __init alix_init(void)
if (!is_geode())
return 0;
- if (alix_present(0xf0000, tinybios_sig, sizeof(tinybios_sig) - 1) ||
- alix_present(0x500, coreboot_sig, sizeof(coreboot_sig) - 1))
+ if (alix_present(BIOS_SIGNATURE_TINYBIOS, tinybios_sig, sizeof(tinybios_sig) - 1) ||
+ alix_present(BIOS_SIGNATURE_COREBOOT, coreboot_sig, sizeof(coreboot_sig) - 1) ||
+ alix_present_dmi())
register_alix();
return 0;
diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c
new file mode 100644
index 000000000000..66d377e334f7
--- /dev/null
+++ b/arch/x86/platform/geode/net5501.c
@@ -0,0 +1,154 @@
+/*
+ * System Specific setup for Soekris net5501
+ * At the moment this means setup of GPIO control of LEDs and buttons
+ * on net5501 boards.
+ *
+ *
+ * Copyright (C) 2008-2009 Tower Technologies
+ * Written by Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * Copyright (C) 2008 Constantin Baranov <const@mimas.ru>
+ * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com>
+ * and Philip Prindeville <philipp@redfish-solutions.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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/leds.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+#include <asm/geode.h>
+
+#define BIOS_REGION_BASE 0xffff0000
+#define BIOS_REGION_SIZE 0x00010000
+
+static struct gpio_keys_button net5501_gpio_buttons[] = {
+ {
+ .code = KEY_RESTART,
+ .gpio = 24,
+ .active_low = 1,
+ .desc = "Reset button",
+ .type = EV_KEY,
+ .wakeup = 0,
+ .debounce_interval = 100,
+ .can_disable = 0,
+ }
+};
+static struct gpio_keys_platform_data net5501_buttons_data = {
+ .buttons = net5501_gpio_buttons,
+ .nbuttons = ARRAY_SIZE(net5501_gpio_buttons),
+ .poll_interval = 20,
+};
+
+static struct platform_device net5501_buttons_dev = {
+ .name = "gpio-keys-polled",
+ .id = 1,
+ .dev = {
+ .platform_data = &net5501_buttons_data,
+ }
+};
+
+static struct gpio_led net5501_leds[] = {
+ {
+ .name = "net5501:1",
+ .gpio = 6,
+ .default_trigger = "default-on",
+ .active_low = 1,
+ },
+};
+
+static struct gpio_led_platform_data net5501_leds_data = {
+ .num_leds = ARRAY_SIZE(net5501_leds),
+ .leds = net5501_leds,
+};
+
+static struct platform_device net5501_leds_dev = {
+ .name = "leds-gpio",
+ .id = -1,
+ .dev.platform_data = &net5501_leds_data,
+};
+
+static struct __initdata platform_device *net5501_devs[] = {
+ &net5501_buttons_dev,
+ &net5501_leds_dev,
+};
+
+static void __init register_net5501(void)
+{
+ /* Setup LED control through leds-gpio driver */
+ platform_add_devices(net5501_devs, ARRAY_SIZE(net5501_devs));
+}
+
+struct net5501_board {
+ u16 offset;
+ u16 len;
+ char *sig;
+};
+
+static struct net5501_board __initdata boards[] = {
+ { 0xb7b, 7, "net5501" }, /* net5501 v1.33/1.33c */
+ { 0xb1f, 7, "net5501" }, /* net5501 v1.32i */
+};
+
+static bool __init net5501_present(void)
+{
+ int i;
+ unsigned char *rombase, *bios;
+ bool found = false;
+
+ rombase = ioremap(BIOS_REGION_BASE, BIOS_REGION_SIZE - 1);
+ if (!rombase) {
+ printk(KERN_ERR "%s: failed to get rombase\n", KBUILD_MODNAME);
+ return found;
+ }
+
+ bios = rombase + 0x20; /* null terminated */
+
+ if (memcmp(bios, "comBIOS", 7))
+ goto unmap;
+
+ for (i = 0; i < ARRAY_SIZE(boards); i++) {
+ unsigned char *model = rombase + boards[i].offset;
+
+ if (!memcmp(model, boards[i].sig, boards[i].len)) {
+ printk(KERN_INFO "%s: system is recognized as \"%s\"\n",
+ KBUILD_MODNAME, model);
+
+ found = true;
+ break;
+ }
+ }
+
+unmap:
+ iounmap(rombase);
+ return found;
+}
+
+static int __init net5501_init(void)
+{
+ if (!is_geode())
+ return 0;
+
+ if (!net5501_present())
+ return 0;
+
+ register_net5501();
+
+ return 0;
+}
+
+module_init(net5501_init);
+
+MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>");
+MODULE_DESCRIPTION("Soekris net5501 System Setup");
+MODULE_LICENSE("GPL");
diff --git a/arch/x86/platform/mrst/Makefile b/arch/x86/platform/mrst/Makefile
index 7baed5135e0f..af1da7e623f9 100644
--- a/arch/x86/platform/mrst/Makefile
+++ b/arch/x86/platform/mrst/Makefile
@@ -1,4 +1,3 @@
obj-$(CONFIG_X86_INTEL_MID) += mrst.o
obj-$(CONFIG_X86_INTEL_MID) += vrtc.o
obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_mrst.o
-obj-$(CONFIG_X86_MRST) += pmu.o
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index 475e2cd0f3c3..721e65285dce 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -78,16 +78,11 @@ int sfi_mrtc_num;
static void mrst_power_off(void)
{
- if (__mrst_cpu_chip == MRST_CPU_CHIP_LINCROFT)
- intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 1);
}
static void mrst_reboot(void)
{
- if (__mrst_cpu_chip == MRST_CPU_CHIP_LINCROFT)
- intel_scu_ipc_simple_command(IPCMSG_COLD_RESET, 0);
- else
- intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+ intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
}
/* parse all the mtimer info to a static mtimer array */
@@ -200,34 +195,28 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table)
static unsigned long __init mrst_calibrate_tsc(void)
{
- unsigned long flags, fast_calibrate;
- if (__mrst_cpu_chip == MRST_CPU_CHIP_PENWELL) {
- u32 lo, hi, ratio, fsb;
-
- rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
- pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi);
- ratio = (hi >> 8) & 0x1f;
- pr_debug("ratio is %d\n", ratio);
- if (!ratio) {
- pr_err("read a zero ratio, should be incorrect!\n");
- pr_err("force tsc ratio to 16 ...\n");
- ratio = 16;
- }
- rdmsr(MSR_FSB_FREQ, lo, hi);
- if ((lo & 0x7) == 0x7)
- fsb = PENWELL_FSB_FREQ_83SKU;
- else
- fsb = PENWELL_FSB_FREQ_100SKU;
- fast_calibrate = ratio * fsb;
- pr_debug("read penwell tsc %lu khz\n", fast_calibrate);
- lapic_timer_frequency = fsb * 1000 / HZ;
- /* mark tsc clocksource as reliable */
- set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
- } else {
- local_irq_save(flags);
- fast_calibrate = apbt_quick_calibrate();
- local_irq_restore(flags);
+ unsigned long fast_calibrate;
+ u32 lo, hi, ratio, fsb;
+
+ rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
+ pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi);
+ ratio = (hi >> 8) & 0x1f;
+ pr_debug("ratio is %d\n", ratio);
+ if (!ratio) {
+ pr_err("read a zero ratio, should be incorrect!\n");
+ pr_err("force tsc ratio to 16 ...\n");
+ ratio = 16;
}
+ rdmsr(MSR_FSB_FREQ, lo, hi);
+ if ((lo & 0x7) == 0x7)
+ fsb = PENWELL_FSB_FREQ_83SKU;
+ else
+ fsb = PENWELL_FSB_FREQ_100SKU;
+ fast_calibrate = ratio * fsb;
+ pr_debug("read penwell tsc %lu khz\n", fast_calibrate);
+ lapic_timer_frequency = fsb * 1000 / HZ;
+ /* mark tsc clocksource as reliable */
+ set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
if (fast_calibrate)
return fast_calibrate;
@@ -261,16 +250,11 @@ static void __cpuinit mrst_arch_setup(void)
{
if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
- else if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x26)
- __mrst_cpu_chip = MRST_CPU_CHIP_LINCROFT;
else {
- pr_err("Unknown Moorestown CPU (%d:%d), default to Lincroft\n",
+ pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n",
boot_cpu_data.x86, boot_cpu_data.x86_model);
- __mrst_cpu_chip = MRST_CPU_CHIP_LINCROFT;
+ __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
}
- pr_debug("Moorestown CPU %s identified\n",
- (__mrst_cpu_chip == MRST_CPU_CHIP_LINCROFT) ?
- "Lincroft" : "Penwell");
}
/* MID systems don't have i8042 controller */
@@ -686,6 +670,11 @@ static void *msic_ocd_platform_data(void *info)
return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
}
+static void *msic_thermal_platform_data(void *info)
+{
+ return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
+}
+
static const struct devs_id __initconst device_ids[] = {
{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
@@ -705,6 +694,7 @@ static const struct devs_id __initconst device_ids[] = {
{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
+ {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
{},
};
diff --git a/arch/x86/platform/mrst/pmu.c b/arch/x86/platform/mrst/pmu.c
deleted file mode 100644
index c0ac06da57ac..000000000000
--- a/arch/x86/platform/mrst/pmu.c
+++ /dev/null
@@ -1,817 +0,0 @@
-/*
- * mrst/pmu.c - driver for MRST Power Management Unit
- *
- * Copyright (c) 2011, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/cpuidle.h>
-#include <linux/debugfs.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/seq_file.h>
-#include <linux/sfi.h>
-#include <asm/intel_scu_ipc.h>
-#include "pmu.h"
-
-#define IPCMSG_FW_REVISION 0xF4
-
-struct mrst_device {
- u16 pci_dev_num; /* DEBUG only */
- u16 lss;
- u16 latest_request;
- unsigned int pci_state_counts[PCI_D3cold + 1]; /* DEBUG only */
-};
-
-/*
- * comlete list of MRST PCI devices
- */
-static struct mrst_device mrst_devs[] = {
-/* 0 */ { 0x0800, LSS_SPI0 }, /* Moorestown SPI Ctrl 0 */
-/* 1 */ { 0x0801, LSS_SPI1 }, /* Moorestown SPI Ctrl 1 */
-/* 2 */ { 0x0802, LSS_I2C0 }, /* Moorestown I2C 0 */
-/* 3 */ { 0x0803, LSS_I2C1 }, /* Moorestown I2C 1 */
-/* 4 */ { 0x0804, LSS_I2C2 }, /* Moorestown I2C 2 */
-/* 5 */ { 0x0805, LSS_KBD }, /* Moorestown Keyboard Ctrl */
-/* 6 */ { 0x0806, LSS_USB_HC }, /* Moorestown USB Ctrl */
-/* 7 */ { 0x0807, LSS_SD_HC0 }, /* Moorestown SD Host Ctrl 0 */
-/* 8 */ { 0x0808, LSS_SD_HC1 }, /* Moorestown SD Host Ctrl 1 */
-/* 9 */ { 0x0809, LSS_NAND }, /* Moorestown NAND Ctrl */
-/* 10 */ { 0x080a, LSS_AUDIO }, /* Moorestown Audio Ctrl */
-/* 11 */ { 0x080b, LSS_IMAGING }, /* Moorestown ISP */
-/* 12 */ { 0x080c, LSS_SECURITY }, /* Moorestown Security Controller */
-/* 13 */ { 0x080d, LSS_DISPLAY }, /* Moorestown External Displays */
-/* 14 */ { 0x080e, 0 }, /* Moorestown SCU IPC */
-/* 15 */ { 0x080f, LSS_GPIO }, /* Moorestown GPIO Controller */
-/* 16 */ { 0x0810, 0 }, /* Moorestown Power Management Unit */
-/* 17 */ { 0x0811, LSS_USB_OTG }, /* Moorestown OTG Ctrl */
-/* 18 */ { 0x0812, LSS_SPI2 }, /* Moorestown SPI Ctrl 2 */
-/* 19 */ { 0x0813, 0 }, /* Moorestown SC DMA */
-/* 20 */ { 0x0814, LSS_AUDIO_LPE }, /* Moorestown LPE DMA */
-/* 21 */ { 0x0815, LSS_AUDIO_SSP }, /* Moorestown SSP0 */
-
-/* 22 */ { 0x084F, LSS_SD_HC2 }, /* Moorestown SD Host Ctrl 2 */
-
-/* 23 */ { 0x4102, 0 }, /* Lincroft */
-/* 24 */ { 0x4110, 0 }, /* Lincroft */
-};
-
-/* n.b. We ignore PCI-id 0x815 in LSS9 b/c Linux has no driver for it */
-static u16 mrst_lss9_pci_ids[] = {0x080a, 0x0814, 0};
-static u16 mrst_lss10_pci_ids[] = {0x0800, 0x0801, 0x0802, 0x0803,
- 0x0804, 0x0805, 0x080f, 0};
-
-/* handle concurrent SMP invokations of pmu_pci_set_power_state() */
-static spinlock_t mrst_pmu_power_state_lock;
-
-static unsigned int wake_counters[MRST_NUM_LSS]; /* DEBUG only */
-static unsigned int pmu_irq_stats[INT_INVALID + 1]; /* DEBUG only */
-
-static int graphics_is_off;
-static int lss_s0i3_enabled;
-static bool mrst_pmu_s0i3_enable;
-
-/* debug counters */
-static u32 pmu_wait_ready_calls;
-static u32 pmu_wait_ready_udelays;
-static u32 pmu_wait_ready_udelays_max;
-static u32 pmu_wait_done_calls;
-static u32 pmu_wait_done_udelays;
-static u32 pmu_wait_done_udelays_max;
-static u32 pmu_set_power_state_entry;
-static u32 pmu_set_power_state_send_cmd;
-
-static struct mrst_device *pci_id_2_mrst_dev(u16 pci_dev_num)
-{
- int index = 0;
-
- if ((pci_dev_num >= 0x0800) && (pci_dev_num <= 0x815))
- index = pci_dev_num - 0x800;
- else if (pci_dev_num == 0x084F)
- index = 22;
- else if (pci_dev_num == 0x4102)
- index = 23;
- else if (pci_dev_num == 0x4110)
- index = 24;
-
- if (pci_dev_num != mrst_devs[index].pci_dev_num) {
- WARN_ONCE(1, FW_BUG "Unknown PCI device 0x%04X\n", pci_dev_num);
- return 0;
- }
-
- return &mrst_devs[index];
-}
-
-/**
- * mrst_pmu_validate_cstates
- * @dev: cpuidle_device
- *
- * Certain states are not appropriate for governor to pick in some cases.
- * This function will be called as cpuidle_device's prepare callback and
- * thus tells governor to ignore such states when selecting the next state
- * to enter.
- */
-
-#define IDLE_STATE4_IS_C6 4
-#define IDLE_STATE5_IS_S0I3 5
-
-int mrst_pmu_invalid_cstates(void)
-{
- int cpu = smp_processor_id();
-
- /*
- * Demote to C4 if the PMU is busy.
- * Since LSS changes leave the busy bit clear...
- * busy means either the PMU is waiting for an ACK-C6 that
- * isn't coming due to an MWAIT that returned immediately;
- * or we returned from S0i3 successfully, and the PMU
- * is not done sending us interrupts.
- */
- if (pmu_read_busy_status())
- return 1 << IDLE_STATE4_IS_C6 | 1 << IDLE_STATE5_IS_S0I3;
-
- /*
- * Disallow S0i3 if: PMU is not initialized, or CPU1 is active,
- * or if device LSS is insufficient, or the GPU is active,
- * or if it has been explicitly disabled.
- */
- if (!pmu_reg || !cpumask_equal(cpu_online_mask, cpumask_of(cpu)) ||
- !lss_s0i3_enabled || !graphics_is_off || !mrst_pmu_s0i3_enable)
- return 1 << IDLE_STATE5_IS_S0I3;
- else
- return 0;
-}
-
-/*
- * pmu_update_wake_counters(): read PM_WKS, update wake_counters[]
- * DEBUG only.
- */
-static void pmu_update_wake_counters(void)
-{
- int lss;
- u32 wake_status;
-
- wake_status = pmu_read_wks();
-
- for (lss = 0; lss < MRST_NUM_LSS; ++lss) {
- if (wake_status & (1 << lss))
- wake_counters[lss]++;
- }
-}
-
-int mrst_pmu_s0i3_entry(void)
-{
- int status;
-
- /* Clear any possible error conditions */
- pmu_write_ics(0x300);
-
- /* set wake control to current D-states */
- pmu_write_wssc(S0I3_SSS_TARGET);
-
- status = mrst_s0i3_entry(PM_S0I3_COMMAND, &pmu_reg->pm_cmd);
- pmu_update_wake_counters();
- return status;
-}
-
-/* poll for maximum of 5ms for busy bit to clear */
-static int pmu_wait_ready(void)
-{
- int udelays;
-
- pmu_wait_ready_calls++;
-
- for (udelays = 0; udelays < 500; ++udelays) {
- if (udelays > pmu_wait_ready_udelays_max)
- pmu_wait_ready_udelays_max = udelays;
-
- if (pmu_read_busy_status() == 0)
- return 0;
-
- udelay(10);
- pmu_wait_ready_udelays++;
- }
-
- /*
- * if this fires, observe
- * /sys/kernel/debug/mrst_pmu_wait_ready_calls
- * /sys/kernel/debug/mrst_pmu_wait_ready_udelays
- */
- WARN_ONCE(1, "SCU not ready for 5ms");
- return -EBUSY;
-}
-/* poll for maximum of 50ms us for busy bit to clear */
-static int pmu_wait_done(void)
-{
- int udelays;
-
- pmu_wait_done_calls++;
-
- for (udelays = 0; udelays < 500; ++udelays) {
- if (udelays > pmu_wait_done_udelays_max)
- pmu_wait_done_udelays_max = udelays;
-
- if (pmu_read_busy_status() == 0)
- return 0;
-
- udelay(100);
- pmu_wait_done_udelays++;
- }
-
- /*
- * if this fires, observe
- * /sys/kernel/debug/mrst_pmu_wait_done_calls
- * /sys/kernel/debug/mrst_pmu_wait_done_udelays
- */
- WARN_ONCE(1, "SCU not done for 50ms");
- return -EBUSY;
-}
-
-u32 mrst_pmu_msi_is_disabled(void)
-{
- return pmu_msi_is_disabled();
-}
-
-void mrst_pmu_enable_msi(void)
-{
- pmu_msi_enable();
-}
-
-/**
- * pmu_irq - pmu driver interrupt handler
- * Context: interrupt context
- */
-static irqreturn_t pmu_irq(int irq, void *dummy)
-{
- union pmu_pm_ics pmu_ics;
-
- pmu_ics.value = pmu_read_ics();
-
- if (!pmu_ics.bits.pending)
- return IRQ_NONE;
-
- switch (pmu_ics.bits.cause) {
- case INT_SPURIOUS:
- case INT_CMD_DONE:
- case INT_CMD_ERR:
- case INT_WAKE_RX:
- case INT_SS_ERROR:
- case INT_S0IX_MISS:
- case INT_NO_ACKC6:
- pmu_irq_stats[pmu_ics.bits.cause]++;
- break;
- default:
- pmu_irq_stats[INT_INVALID]++;
- }
-
- pmu_write_ics(pmu_ics.value); /* Clear pending interrupt */
-
- return IRQ_HANDLED;
-}
-
-/*
- * Translate PCI power management to MRST LSS D-states
- */
-static int pci_2_mrst_state(int lss, pci_power_t pci_state)
-{
- switch (pci_state) {
- case PCI_D0:
- if (SSMSK(D0i1, lss) & D0I1_ACG_SSS_TARGET)
- return D0i1;
- else
- return D0;
- case PCI_D1:
- return D0i1;
- case PCI_D2:
- return D0i2;
- case PCI_D3hot:
- case PCI_D3cold:
- return D0i3;
- default:
- WARN(1, "pci_state %d\n", pci_state);
- return 0;
- }
-}
-
-static int pmu_issue_command(u32 pm_ssc)
-{
- union pmu_pm_set_cfg_cmd_t command;
-
- if (pmu_read_busy_status()) {
- pr_debug("pmu is busy, Operation not permitted\n");
- return -1;
- }
-
- /*
- * enable interrupts in PMU so that interrupts are
- * propagated when ioc bit for a particular set
- * command is set
- */
-
- pmu_irq_enable();
-
- /* Configure the sub systems for pmu2 */
-
- pmu_write_ssc(pm_ssc);
-
- /*
- * Send the set config command for pmu its configured
- * for mode CM_IMMEDIATE & hence with No Trigger
- */
-
- command.pmu2_params.d_param.cfg_mode = CM_IMMEDIATE;
- command.pmu2_params.d_param.cfg_delay = 0;
- command.pmu2_params.d_param.rsvd = 0;
-
- /* construct the command to send SET_CFG to particular PMU */
- command.pmu2_params.d_param.cmd = SET_CFG_CMD;
- command.pmu2_params.d_param.ioc = 0;
- command.pmu2_params.d_param.mode_id = 0;
- command.pmu2_params.d_param.sys_state = SYS_STATE_S0I0;
-
- /* write the value of PM_CMD into particular PMU */
- pr_debug("pmu command being written %x\n",
- command.pmu_pm_set_cfg_cmd_value);
-
- pmu_write_cmd(command.pmu_pm_set_cfg_cmd_value);
-
- return 0;
-}
-
-static u16 pmu_min_lss_pci_req(u16 *ids, u16 pci_state)
-{
- u16 existing_request;
- int i;
-
- for (i = 0; ids[i]; ++i) {
- struct mrst_device *mrst_dev;
-
- mrst_dev = pci_id_2_mrst_dev(ids[i]);
- if (unlikely(!mrst_dev))
- continue;
-
- existing_request = mrst_dev->latest_request;
- if (existing_request < pci_state)
- pci_state = existing_request;
- }
- return pci_state;
-}
-
-/**
- * pmu_pci_set_power_state - Callback function is used by all the PCI devices
- * for a platform specific device power on/shutdown.
- */
-
-int pmu_pci_set_power_state(struct pci_dev *pdev, pci_power_t pci_state)
-{
- u32 old_sss, new_sss;
- int status = 0;
- struct mrst_device *mrst_dev;
-
- pmu_set_power_state_entry++;
-
- BUG_ON(pdev->vendor != PCI_VENDOR_ID_INTEL);
- BUG_ON(pci_state < PCI_D0 || pci_state > PCI_D3cold);
-
- mrst_dev = pci_id_2_mrst_dev(pdev->device);
- if (unlikely(!mrst_dev))
- return -ENODEV;
-
- mrst_dev->pci_state_counts[pci_state]++; /* count invocations */
-
- /* PMU driver calls self as part of PCI initialization, ignore */
- if (pdev->device == PCI_DEV_ID_MRST_PMU)
- return 0;
-
- BUG_ON(!pmu_reg); /* SW bug if called before initialized */
-
- spin_lock(&mrst_pmu_power_state_lock);
-
- if (pdev->d3_delay) {
- dev_dbg(&pdev->dev, "d3_delay %d, should be 0\n",
- pdev->d3_delay);
- pdev->d3_delay = 0;
- }
- /*
- * If Lincroft graphics, simply remember state
- */
- if ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY
- && !((pdev->class & PCI_SUB_CLASS_MASK) >> 8)) {
- if (pci_state == PCI_D0)
- graphics_is_off = 0;
- else
- graphics_is_off = 1;
- goto ret;
- }
-
- if (!mrst_dev->lss)
- goto ret; /* device with no LSS */
-
- if (mrst_dev->latest_request == pci_state)
- goto ret; /* no change */
-
- mrst_dev->latest_request = pci_state; /* record latest request */
-
- /*
- * LSS9 and LSS10 contain multiple PCI devices.
- * Use the lowest numbered (highest power) state in the LSS
- */
- if (mrst_dev->lss == 9)
- pci_state = pmu_min_lss_pci_req(mrst_lss9_pci_ids, pci_state);
- else if (mrst_dev->lss == 10)
- pci_state = pmu_min_lss_pci_req(mrst_lss10_pci_ids, pci_state);
-
- status = pmu_wait_ready();
- if (status)
- goto ret;
-
- old_sss = pmu_read_sss();
- new_sss = old_sss & ~SSMSK(3, mrst_dev->lss);
- new_sss |= SSMSK(pci_2_mrst_state(mrst_dev->lss, pci_state),
- mrst_dev->lss);
-
- if (new_sss == old_sss)
- goto ret; /* nothing to do */
-
- pmu_set_power_state_send_cmd++;
-
- status = pmu_issue_command(new_sss);
-
- if (unlikely(status != 0)) {
- dev_err(&pdev->dev, "Failed to Issue a PM command\n");
- goto ret;
- }
-
- if (pmu_wait_done())
- goto ret;
-
- lss_s0i3_enabled =
- ((pmu_read_sss() & S0I3_SSS_TARGET) == S0I3_SSS_TARGET);
-ret:
- spin_unlock(&mrst_pmu_power_state_lock);
- return status;
-}
-
-#ifdef CONFIG_DEBUG_FS
-static char *d0ix_names[] = {"D0", "D0i1", "D0i2", "D0i3"};
-
-static inline const char *d0ix_name(int state)
-{
- return d0ix_names[(int) state];
-}
-
-static int debug_mrst_pmu_show(struct seq_file *s, void *unused)
-{
- struct pci_dev *pdev = NULL;
- u32 cur_pmsss;
- int lss;
-
- seq_printf(s, "0x%08X D0I1_ACG_SSS_TARGET\n", D0I1_ACG_SSS_TARGET);
-
- cur_pmsss = pmu_read_sss();
-
- seq_printf(s, "0x%08X S0I3_SSS_TARGET\n", S0I3_SSS_TARGET);
-
- seq_printf(s, "0x%08X Current SSS ", cur_pmsss);
- seq_printf(s, lss_s0i3_enabled ? "\n" : "[BLOCKS s0i3]\n");
-
- if (cpumask_equal(cpu_online_mask, cpumask_of(0)))
- seq_printf(s, "cpu0 is only cpu online\n");
- else
- seq_printf(s, "cpu0 is NOT only cpu online [BLOCKS S0i3]\n");
-
- seq_printf(s, "GFX: %s\n", graphics_is_off ? "" : "[BLOCKS s0i3]");
-
-
- for_each_pci_dev(pdev) {
- int pos;
- u16 pmcsr;
- struct mrst_device *mrst_dev;
- int i;
-
- mrst_dev = pci_id_2_mrst_dev(pdev->device);
-
- seq_printf(s, "%s %04x/%04X %-16.16s ",
- dev_name(&pdev->dev),
- pdev->vendor, pdev->device,
- dev_driver_string(&pdev->dev));
-
- if (unlikely (!mrst_dev)) {
- seq_printf(s, " UNKNOWN\n");
- continue;
- }
-
- if (mrst_dev->lss)
- seq_printf(s, "LSS %2d %-4s ", mrst_dev->lss,
- d0ix_name(((cur_pmsss >>
- (mrst_dev->lss * 2)) & 0x3)));
- else
- seq_printf(s, " ");
-
- /* PCI PM config space setting */
- pos = pci_find_capability(pdev, PCI_CAP_ID_PM);
- if (pos != 0) {
- pci_read_config_word(pdev, pos + PCI_PM_CTRL, &pmcsr);
- seq_printf(s, "PCI-%-4s",
- pci_power_name(pmcsr & PCI_PM_CTRL_STATE_MASK));
- } else {
- seq_printf(s, " ");
- }
-
- seq_printf(s, " %s ", pci_power_name(mrst_dev->latest_request));
- for (i = 0; i <= PCI_D3cold; ++i)
- seq_printf(s, "%d ", mrst_dev->pci_state_counts[i]);
-
- if (mrst_dev->lss) {
- unsigned int lssmask;
-
- lssmask = SSMSK(D0i3, mrst_dev->lss);
-
- if ((lssmask & S0I3_SSS_TARGET) &&
- ((lssmask & cur_pmsss) !=
- (lssmask & S0I3_SSS_TARGET)))
- seq_printf(s , "[BLOCKS s0i3]");
- }
-
- seq_printf(s, "\n");
- }
- seq_printf(s, "Wake Counters:\n");
- for (lss = 0; lss < MRST_NUM_LSS; ++lss)
- seq_printf(s, "LSS%d %d\n", lss, wake_counters[lss]);
-
- seq_printf(s, "Interrupt Counters:\n");
- seq_printf(s,
- "INT_SPURIOUS \t%8u\n" "INT_CMD_DONE \t%8u\n"
- "INT_CMD_ERR \t%8u\n" "INT_WAKE_RX \t%8u\n"
- "INT_SS_ERROR \t%8u\n" "INT_S0IX_MISS\t%8u\n"
- "INT_NO_ACKC6 \t%8u\n" "INT_INVALID \t%8u\n",
- pmu_irq_stats[INT_SPURIOUS], pmu_irq_stats[INT_CMD_DONE],
- pmu_irq_stats[INT_CMD_ERR], pmu_irq_stats[INT_WAKE_RX],
- pmu_irq_stats[INT_SS_ERROR], pmu_irq_stats[INT_S0IX_MISS],
- pmu_irq_stats[INT_NO_ACKC6], pmu_irq_stats[INT_INVALID]);
-
- seq_printf(s, "mrst_pmu_wait_ready_calls %8d\n",
- pmu_wait_ready_calls);
- seq_printf(s, "mrst_pmu_wait_ready_udelays %8d\n",
- pmu_wait_ready_udelays);
- seq_printf(s, "mrst_pmu_wait_ready_udelays_max %8d\n",
- pmu_wait_ready_udelays_max);
- seq_printf(s, "mrst_pmu_wait_done_calls %8d\n",
- pmu_wait_done_calls);
- seq_printf(s, "mrst_pmu_wait_done_udelays %8d\n",
- pmu_wait_done_udelays);
- seq_printf(s, "mrst_pmu_wait_done_udelays_max %8d\n",
- pmu_wait_done_udelays_max);
- seq_printf(s, "mrst_pmu_set_power_state_entry %8d\n",
- pmu_set_power_state_entry);
- seq_printf(s, "mrst_pmu_set_power_state_send_cmd %8d\n",
- pmu_set_power_state_send_cmd);
- seq_printf(s, "SCU busy: %d\n", pmu_read_busy_status());
-
- return 0;
-}
-
-static int debug_mrst_pmu_open(struct inode *inode, struct file *file)
-{
- return single_open(file, debug_mrst_pmu_show, NULL);
-}
-
-static const struct file_operations devices_state_operations = {
- .open = debug_mrst_pmu_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif /* DEBUG_FS */
-
-/*
- * Validate SCU PCI shim PCI vendor capability byte
- * against LSS hard-coded in mrst_devs[] above.
- * DEBUG only.
- */
-static void pmu_scu_firmware_debug(void)
-{
- struct pci_dev *pdev = NULL;
-
- for_each_pci_dev(pdev) {
- struct mrst_device *mrst_dev;
- u8 pci_config_lss;
- int pos;
-
- mrst_dev = pci_id_2_mrst_dev(pdev->device);
- if (unlikely(!mrst_dev)) {
- printk(KERN_ERR FW_BUG "pmu: Unknown "
- "PCI device 0x%04X\n", pdev->device);
- continue;
- }
-
- if (mrst_dev->lss == 0)
- continue; /* no LSS in our table */
-
- pos = pci_find_capability(pdev, PCI_CAP_ID_VNDR);
- if (!pos != 0) {
- printk(KERN_ERR FW_BUG "pmu: 0x%04X "
- "missing PCI Vendor Capability\n",
- pdev->device);
- continue;
- }
- pci_read_config_byte(pdev, pos + 4, &pci_config_lss);
- if (!(pci_config_lss & PCI_VENDOR_CAP_LOG_SS_MASK)) {
- printk(KERN_ERR FW_BUG "pmu: 0x%04X "
- "invalid PCI Vendor Capability 0x%x "
- " expected LSS 0x%X\n",
- pdev->device, pci_config_lss, mrst_dev->lss);
- continue;
- }
- pci_config_lss &= PCI_VENDOR_CAP_LOG_ID_MASK;
-
- if (mrst_dev->lss == pci_config_lss)
- continue;
-
- printk(KERN_ERR FW_BUG "pmu: 0x%04X LSS = %d, expected %d\n",
- pdev->device, pci_config_lss, mrst_dev->lss);
- }
-}
-
-/**
- * pmu_probe
- */
-static int __devinit pmu_probe(struct pci_dev *pdev,
- const struct pci_device_id *pci_id)
-{
- int ret;
- struct mrst_pmu_reg *pmu;
-
- /* Init the device */
- ret = pci_enable_device(pdev);
- if (ret) {
- dev_err(&pdev->dev, "Unable to Enable PCI device\n");
- return ret;
- }
-
- ret = pci_request_regions(pdev, MRST_PMU_DRV_NAME);
- if (ret < 0) {
- dev_err(&pdev->dev, "Cannot obtain PCI resources, aborting\n");
- goto out_err1;
- }
-
- /* Map the memory of PMU reg base */
- pmu = pci_iomap(pdev, 0, 0);
- if (!pmu) {
- dev_err(&pdev->dev, "Unable to map the PMU address space\n");
- ret = -ENOMEM;
- goto out_err2;
- }
-
-#ifdef CONFIG_DEBUG_FS
- /* /sys/kernel/debug/mrst_pmu */
- (void) debugfs_create_file("mrst_pmu", S_IFREG | S_IRUGO,
- NULL, NULL, &devices_state_operations);
-#endif
- pmu_reg = pmu; /* success */
-
- if (request_irq(pdev->irq, pmu_irq, 0, MRST_PMU_DRV_NAME, NULL)) {
- dev_err(&pdev->dev, "Registering isr has failed\n");
- ret = -1;
- goto out_err3;
- }
-
- pmu_scu_firmware_debug();
-
- pmu_write_wkc(S0I3_WAKE_SOURCES); /* Enable S0i3 wakeup sources */
-
- pmu_wait_ready();
-
- pmu_write_ssc(D0I1_ACG_SSS_TARGET); /* Enable Auto-Clock_Gating */
- pmu_write_cmd(0x201);
-
- spin_lock_init(&mrst_pmu_power_state_lock);
-
- /* Enable the hardware interrupt */
- pmu_irq_enable();
- return 0;
-
-out_err3:
- free_irq(pdev->irq, NULL);
- pci_iounmap(pdev, pmu_reg);
- pmu_reg = NULL;
-out_err2:
- pci_release_region(pdev, 0);
-out_err1:
- pci_disable_device(pdev);
- return ret;
-}
-
-static void __devexit pmu_remove(struct pci_dev *pdev)
-{
- dev_err(&pdev->dev, "Mid PM pmu_remove called\n");
-
- /* Freeing up the irq */
- free_irq(pdev->irq, NULL);
-
- pci_iounmap(pdev, pmu_reg);
- pmu_reg = NULL;
-
- /* disable the current PCI device */
- pci_release_region(pdev, 0);
- pci_disable_device(pdev);
-}
-
-static DEFINE_PCI_DEVICE_TABLE(pmu_pci_ids) = {
- { PCI_VDEVICE(INTEL, PCI_DEV_ID_MRST_PMU), 0 },
- { }
-};
-
-MODULE_DEVICE_TABLE(pci, pmu_pci_ids);
-
-static struct pci_driver driver = {
- .name = MRST_PMU_DRV_NAME,
- .id_table = pmu_pci_ids,
- .probe = pmu_probe,
- .remove = __devexit_p(pmu_remove),
-};
-
-/**
- * pmu_pci_register - register the PMU driver as PCI device
- */
-static int __init pmu_pci_register(void)
-{
- return pci_register_driver(&driver);
-}
-
-/* Register and probe via fs_initcall() to preceed device_initcall() */
-fs_initcall(pmu_pci_register);
-
-static void __exit mid_pci_cleanup(void)
-{
- pci_unregister_driver(&driver);
-}
-
-static int ia_major;
-static int ia_minor;
-
-static int pmu_sfi_parse_oem(struct sfi_table_header *table)
-{
- struct sfi_table_simple *sb;
-
- sb = (struct sfi_table_simple *)table;
- ia_major = (sb->pentry[1] >> 0) & 0xFFFF;
- ia_minor = (sb->pentry[1] >> 16) & 0xFFFF;
- printk(KERN_INFO "mrst_pmu: IA FW version v%x.%x\n",
- ia_major, ia_minor);
-
- return 0;
-}
-
-static int __init scu_fw_check(void)
-{
- int ret;
- u32 fw_version;
-
- if (!pmu_reg)
- return 0; /* this driver didn't probe-out */
-
- sfi_table_parse("OEMB", NULL, NULL, pmu_sfi_parse_oem);
-
- if (ia_major < 0x6005 || ia_minor < 0x1525) {
- WARN(1, "mrst_pmu: IA FW version too old\n");
- return -1;
- }
-
- ret = intel_scu_ipc_command(IPCMSG_FW_REVISION, 0, NULL, 0,
- &fw_version, 1);
-
- if (ret) {
- WARN(1, "mrst_pmu: IPC FW version? %d\n", ret);
- } else {
- int scu_major = (fw_version >> 8) & 0xFF;
- int scu_minor = (fw_version >> 0) & 0xFF;
-
- printk(KERN_INFO "mrst_pmu: firmware v%x\n", fw_version);
-
- if ((scu_major >= 0xC0) && (scu_minor >= 0x49)) {
- printk(KERN_INFO "mrst_pmu: enabling S0i3\n");
- mrst_pmu_s0i3_enable = true;
- } else {
- WARN(1, "mrst_pmu: S0i3 disabled, old firmware %X.%X",
- scu_major, scu_minor);
- }
- }
- return 0;
-}
-late_initcall(scu_fw_check);
-module_exit(mid_pci_cleanup);
diff --git a/arch/x86/platform/mrst/pmu.h b/arch/x86/platform/mrst/pmu.h
deleted file mode 100644
index bfbfe64b167b..000000000000
--- a/arch/x86/platform/mrst/pmu.h
+++ /dev/null
@@ -1,234 +0,0 @@
-/*
- * mrst/pmu.h - private definitions for MRST Power Management Unit mrst/pmu.c
- *
- * Copyright (c) 2011, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifndef _MRST_PMU_H_
-#define _MRST_PMU_H_
-
-#define PCI_DEV_ID_MRST_PMU 0x0810
-#define MRST_PMU_DRV_NAME "mrst_pmu"
-#define PCI_SUB_CLASS_MASK 0xFF00
-
-#define PCI_VENDOR_CAP_LOG_ID_MASK 0x7F
-#define PCI_VENDOR_CAP_LOG_SS_MASK 0x80
-
-#define SUB_SYS_ALL_D0I1 0x01155555
-#define S0I3_WAKE_SOURCES 0x00001FFF
-
-#define PM_S0I3_COMMAND \
- ((0 << 31) | /* Reserved */ \
- (0 << 30) | /* Core must be idle */ \
- (0xc2 << 22) | /* ACK C6 trigger */ \
- (3 << 19) | /* Trigger on DMI message */ \
- (3 << 16) | /* Enter S0i3 */ \
- (0 << 13) | /* Numeric mode ID (sw) */ \
- (3 << 9) | /* Trigger mode */ \
- (0 << 8) | /* Do not interrupt */ \
- (1 << 0)) /* Set configuration */
-
-#define LSS_DMI 0
-#define LSS_SD_HC0 1
-#define LSS_SD_HC1 2
-#define LSS_NAND 3
-#define LSS_IMAGING 4
-#define LSS_SECURITY 5
-#define LSS_DISPLAY 6
-#define LSS_USB_HC 7
-#define LSS_USB_OTG 8
-#define LSS_AUDIO 9
-#define LSS_AUDIO_LPE 9
-#define LSS_AUDIO_SSP 9
-#define LSS_I2C0 10
-#define LSS_I2C1 10
-#define LSS_I2C2 10
-#define LSS_KBD 10
-#define LSS_SPI0 10
-#define LSS_SPI1 10
-#define LSS_SPI2 10
-#define LSS_GPIO 10
-#define LSS_SRAM 11 /* used by SCU, do not touch */
-#define LSS_SD_HC2 12
-/* LSS hardware bits 15,14,13 are hardwired to 0, thus unusable */
-#define MRST_NUM_LSS 13
-
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-
-#define SSMSK(mask, lss) ((mask) << ((lss) * 2))
-#define D0 0
-#define D0i1 1
-#define D0i2 2
-#define D0i3 3
-
-#define S0I3_SSS_TARGET ( \
- SSMSK(D0i1, LSS_DMI) | \
- SSMSK(D0i3, LSS_SD_HC0) | \
- SSMSK(D0i3, LSS_SD_HC1) | \
- SSMSK(D0i3, LSS_NAND) | \
- SSMSK(D0i3, LSS_SD_HC2) | \
- SSMSK(D0i3, LSS_IMAGING) | \
- SSMSK(D0i3, LSS_SECURITY) | \
- SSMSK(D0i3, LSS_DISPLAY) | \
- SSMSK(D0i3, LSS_USB_HC) | \
- SSMSK(D0i3, LSS_USB_OTG) | \
- SSMSK(D0i3, LSS_AUDIO) | \
- SSMSK(D0i1, LSS_I2C0))
-
-/*
- * D0i1 on Langwell is Autonomous Clock Gating (ACG).
- * Enable ACG on every LSS except camera and audio
- */
-#define D0I1_ACG_SSS_TARGET \
- (SUB_SYS_ALL_D0I1 & ~SSMSK(D0i1, LSS_IMAGING) & ~SSMSK(D0i1, LSS_AUDIO))
-
-enum cm_mode {
- CM_NOP, /* ignore the config mode value */
- CM_IMMEDIATE,
- CM_DELAY,
- CM_TRIGGER,
- CM_INVALID
-};
-
-enum sys_state {
- SYS_STATE_S0I0,
- SYS_STATE_S0I1,
- SYS_STATE_S0I2,
- SYS_STATE_S0I3,
- SYS_STATE_S3,
- SYS_STATE_S5
-};
-
-#define SET_CFG_CMD 1
-
-enum int_status {
- INT_SPURIOUS = 0,
- INT_CMD_DONE = 1,
- INT_CMD_ERR = 2,
- INT_WAKE_RX = 3,
- INT_SS_ERROR = 4,
- INT_S0IX_MISS = 5,
- INT_NO_ACKC6 = 6,
- INT_INVALID = 7,
-};
-
-/* PMU register interface */
-static struct mrst_pmu_reg {
- u32 pm_sts; /* 0x00 */
- u32 pm_cmd; /* 0x04 */
- u32 pm_ics; /* 0x08 */
- u32 _resv1; /* 0x0C */
- u32 pm_wkc[2]; /* 0x10 */
- u32 pm_wks[2]; /* 0x18 */
- u32 pm_ssc[4]; /* 0x20 */
- u32 pm_sss[4]; /* 0x30 */
- u32 pm_wssc[4]; /* 0x40 */
- u32 pm_c3c4; /* 0x50 */
- u32 pm_c5c6; /* 0x54 */
- u32 pm_msi_disable; /* 0x58 */
-} *pmu_reg;
-
-static inline u32 pmu_read_sts(void) { return readl(&pmu_reg->pm_sts); }
-static inline u32 pmu_read_ics(void) { return readl(&pmu_reg->pm_ics); }
-static inline u32 pmu_read_wks(void) { return readl(&pmu_reg->pm_wks[0]); }
-static inline u32 pmu_read_sss(void) { return readl(&pmu_reg->pm_sss[0]); }
-
-static inline void pmu_write_cmd(u32 arg) { writel(arg, &pmu_reg->pm_cmd); }
-static inline void pmu_write_ics(u32 arg) { writel(arg, &pmu_reg->pm_ics); }
-static inline void pmu_write_wkc(u32 arg) { writel(arg, &pmu_reg->pm_wkc[0]); }
-static inline void pmu_write_ssc(u32 arg) { writel(arg, &pmu_reg->pm_ssc[0]); }
-static inline void pmu_write_wssc(u32 arg)
- { writel(arg, &pmu_reg->pm_wssc[0]); }
-
-static inline void pmu_msi_enable(void) { writel(0, &pmu_reg->pm_msi_disable); }
-static inline u32 pmu_msi_is_disabled(void)
- { return readl(&pmu_reg->pm_msi_disable); }
-
-union pmu_pm_ics {
- struct {
- u32 cause:8;
- u32 enable:1;
- u32 pending:1;
- u32 reserved:22;
- } bits;
- u32 value;
-};
-
-static inline void pmu_irq_enable(void)
-{
- union pmu_pm_ics pmu_ics;
-
- pmu_ics.value = pmu_read_ics();
- pmu_ics.bits.enable = 1;
- pmu_write_ics(pmu_ics.value);
-}
-
-union pmu_pm_status {
- struct {
- u32 pmu_rev:8;
- u32 pmu_busy:1;
- u32 mode_id:4;
- u32 Reserved:19;
- } pmu_status_parts;
- u32 pmu_status_value;
-};
-
-static inline int pmu_read_busy_status(void)
-{
- union pmu_pm_status result;
-
- result.pmu_status_value = pmu_read_sts();
-
- return result.pmu_status_parts.pmu_busy;
-}
-
-/* pmu set config parameters */
-struct cfg_delay_param_t {
- u32 cmd:8;
- u32 ioc:1;
- u32 cfg_mode:4;
- u32 mode_id:3;
- u32 sys_state:3;
- u32 cfg_delay:8;
- u32 rsvd:5;
-};
-
-struct cfg_trig_param_t {
- u32 cmd:8;
- u32 ioc:1;
- u32 cfg_mode:4;
- u32 mode_id:3;
- u32 sys_state:3;
- u32 cfg_trig_type:3;
- u32 cfg_trig_val:8;
- u32 cmbi:1;
- u32 rsvd1:1;
-};
-
-union pmu_pm_set_cfg_cmd_t {
- union {
- struct cfg_delay_param_t d_param;
- struct cfg_trig_param_t t_param;
- } pmu2_params;
- u32 pmu_pm_set_cfg_cmd_value;
-};
-
-#ifdef FUTURE_PATCH
-extern int mrst_s0i3_entry(u32 regval, u32 *regaddr);
-#else
-static inline int mrst_s0i3_entry(u32 regval, u32 *regaddr) { return -1; }
-#endif
-#endif
diff --git a/arch/x86/platform/olpc/olpc-xo15-sci.c b/arch/x86/platform/olpc/olpc-xo15-sci.c
index 2b235b77d9ab..23e5b9d7977b 100644
--- a/arch/x86/platform/olpc/olpc-xo15-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo15-sci.c
@@ -23,7 +23,66 @@
#define XO15_SCI_CLASS DRV_NAME
#define XO15_SCI_DEVICE_NAME "OLPC XO-1.5 SCI"
-static unsigned long xo15_sci_gpe;
+static unsigned long xo15_sci_gpe;
+static bool lid_wake_on_close;
+
+/*
+ * The normal ACPI LID wakeup behavior is wake-on-open, but not
+ * wake-on-close. This is implemented as standard by the XO-1.5 DSDT.
+ *
+ * We provide here a sysfs attribute that will additionally enable
+ * wake-on-close behavior. This is useful (e.g.) when we oportunistically
+ * suspend with the display running; if the lid is then closed, we want to
+ * wake up to turn the display off.
+ *
+ * This is controlled through a custom method in the XO-1.5 DSDT.
+ */
+static int set_lid_wake_behavior(bool wake_on_close)
+{
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status;
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = wake_on_close;
+
+ status = acpi_evaluate_object(NULL, "\\_SB.PCI0.LID.LIDW", &arg_list, NULL);
+ if (ACPI_FAILURE(status)) {
+ pr_warning(PFX "failed to set lid behavior\n");
+ return 1;
+ }
+
+ lid_wake_on_close = wake_on_close;
+
+ return 0;
+}
+
+static ssize_t
+lid_wake_on_close_show(struct kobject *s, struct kobj_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%u\n", lid_wake_on_close);
+}
+
+static ssize_t lid_wake_on_close_store(struct kobject *s,
+ struct kobj_attribute *attr,
+ const char *buf, size_t n)
+{
+ unsigned int val;
+
+ if (sscanf(buf, "%u", &val) != 1)
+ return -EINVAL;
+
+ set_lid_wake_behavior(!!val);
+
+ return n;
+}
+
+static struct kobj_attribute lid_wake_on_close_attr =
+ __ATTR(lid_wake_on_close, 0644,
+ lid_wake_on_close_show,
+ lid_wake_on_close_store);
static void battery_status_changed(void)
{
@@ -91,6 +150,7 @@ static int xo15_sci_add(struct acpi_device *device)
{
unsigned long long tmp;
acpi_status status;
+ int r;
if (!device)
return -EINVAL;
@@ -112,6 +172,10 @@ static int xo15_sci_add(struct acpi_device *device)
dev_info(&device->dev, "Initialized, GPE = 0x%lx\n", xo15_sci_gpe);
+ r = sysfs_create_file(&device->dev.kobj, &lid_wake_on_close_attr.attr);
+ if (r)
+ goto err_sysfs;
+
/* Flush queue, and enable all SCI events */
process_sci_queue();
olpc_ec_mask_write(EC_SCI_SRC_ALL);
@@ -123,6 +187,11 @@ static int xo15_sci_add(struct acpi_device *device)
device_init_wakeup(&device->dev, true);
return 0;
+
+err_sysfs:
+ acpi_remove_gpe_handler(NULL, xo15_sci_gpe, xo15_sci_gpe_handler);
+ cancel_work_sync(&sci_work);
+ return r;
}
static int xo15_sci_remove(struct acpi_device *device, int type)
@@ -130,6 +199,7 @@ static int xo15_sci_remove(struct acpi_device *device, int type)
acpi_disable_gpe(NULL, xo15_sci_gpe);
acpi_remove_gpe_handler(NULL, xo15_sci_gpe, xo15_sci_gpe_handler);
cancel_work_sync(&sci_work);
+ sysfs_remove_file(&device->dev.kobj, &lid_wake_on_close_attr.attr);
return 0;
}