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-rw-r--r--drivers/acpi/Makefile1
-rw-r--r--drivers/acpi/acpi_lpss.c3
-rw-r--r--drivers/acpi/internal.h6
-rw-r--r--drivers/acpi/osi.c37
-rw-r--r--drivers/acpi/pci_root.c4
-rw-r--r--drivers/acpi/pmic/intel_pmic_xpower.c21
-rw-r--r--drivers/acpi/property.c6
-rw-r--r--drivers/acpi/sbs.c25
-rw-r--r--drivers/acpi/scan.c7
-rw-r--r--drivers/acpi/x86/apple.c141
10 files changed, 193 insertions, 58 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index b1aacfc62b1f..90265ab4437a 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -50,6 +50,7 @@ acpi-$(CONFIG_ACPI_REDUCED_HARDWARE_ONLY) += evged.o
acpi-y += sysfs.o
acpi-y += property.o
acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
+acpi-$(CONFIG_X86) += x86/apple.o
acpi-$(CONFIG_X86) += x86/utils.o
acpi-$(CONFIG_DEBUG_FS) += debugfs.o
acpi-$(CONFIG_ACPI_NUMA) += numa.o
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index f88caf5aab76..032ae44710e5 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -465,7 +465,8 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
acpi_dev_free_resource_list(&resource_list);
if (!pdata->mmio_base) {
- ret = -ENOMEM;
+ /* Skip the device, but continue the namespace scan. */
+ ret = 0;
goto err_out;
}
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 3f5af4d7a739..4361c4415b4f 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -232,6 +232,12 @@ static inline void suspend_nvs_restore(void) {}
void acpi_init_properties(struct acpi_device *adev);
void acpi_free_properties(struct acpi_device *adev);
+#ifdef CONFIG_X86
+void acpi_extract_apple_properties(struct acpi_device *adev);
+#else
+static inline void acpi_extract_apple_properties(struct acpi_device *adev) {}
+#endif
+
/*--------------------------------------------------------------------------
Watchdog
-------------------------------------------------------------------------- */
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index 723bee58bbcf..19cdd8a783a9 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -27,6 +27,7 @@
#include <linux/kernel.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include "internal.h"
@@ -257,12 +258,11 @@ bool acpi_osi_is_win8(void)
}
EXPORT_SYMBOL(acpi_osi_is_win8);
-static void __init acpi_osi_dmi_darwin(bool enable,
- const struct dmi_system_id *d)
+static void __init acpi_osi_dmi_darwin(void)
{
- pr_notice("DMI detected to setup _OSI(\"Darwin\"): %s\n", d->ident);
+ pr_notice("DMI detected to setup _OSI(\"Darwin\"): Apple hardware\n");
osi_config.darwin_dmi = 1;
- __acpi_osi_setup_darwin(enable);
+ __acpi_osi_setup_darwin(true);
}
static void __init acpi_osi_dmi_linux(bool enable,
@@ -273,13 +273,6 @@ static void __init acpi_osi_dmi_linux(bool enable,
__acpi_osi_setup_linux(enable);
}
-static int __init dmi_enable_osi_darwin(const struct dmi_system_id *d)
-{
- acpi_osi_dmi_darwin(true, d);
-
- return 0;
-}
-
static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
{
acpi_osi_dmi_linux(true, d);
@@ -481,30 +474,16 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "1015PX"),
},
},
-
- /*
- * Enable _OSI("Darwin") for all apple platforms.
- */
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
- },
- },
- {
- .callback = dmi_enable_osi_darwin,
- .ident = "Apple hardware",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
- },
- },
{}
};
static __init void acpi_osi_dmi_blacklisted(void)
{
dmi_check_system(acpi_osi_dmi_table);
+
+ /* Enable _OSI("Darwin") for Apple platforms. */
+ if (x86_apple_machine)
+ acpi_osi_dmi_darwin();
}
int __init early_acpi_osi_init(void)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 9eec3095e6c3..6fc204a52493 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -33,6 +33,7 @@
#include <linux/acpi.h>
#include <linux/slab.h>
#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include <acpi/apei.h> /* for acpi_hest_init() */
#include "internal.h"
@@ -431,8 +432,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm)
* been called successfully. We know the feature set supported by the
* platform, so avoid calling _OSC at all
*/
-
- if (dmi_match(DMI_SYS_VENDOR, "Apple Inc.")) {
+ if (x86_apple_machine) {
root->osc_control_set = ~OSC_PCI_EXPRESS_PME_CONTROL;
decode_osc_control(root, "OS assumes control of",
root->osc_control_set);
diff --git a/drivers/acpi/pmic/intel_pmic_xpower.c b/drivers/acpi/pmic/intel_pmic_xpower.c
index 3b7d5be5b7ed..6c99d3f81095 100644
--- a/drivers/acpi/pmic/intel_pmic_xpower.c
+++ b/drivers/acpi/pmic/intel_pmic_xpower.c
@@ -27,6 +27,9 @@
#define GPI1_LDO_ON (3 << 0)
#define GPI1_LDO_OFF (4 << 0)
+#define AXP288_ADC_TS_PIN_GPADC 0xf2
+#define AXP288_ADC_TS_PIN_ON 0xf3
+
static struct pmic_table power_table[] = {
{
.address = 0x00,
@@ -209,11 +212,23 @@ static int intel_xpower_pmic_update_power(struct regmap *regmap, int reg,
static int intel_xpower_pmic_get_raw_temp(struct regmap *regmap, int reg)
{
u8 buf[2];
+ int ret;
- if (regmap_bulk_read(regmap, AXP288_GP_ADC_H, buf, 2))
- return -EIO;
+ ret = regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL,
+ AXP288_ADC_TS_PIN_GPADC);
+ if (ret)
+ return ret;
+
+ /* After switching to the GPADC pin give things some time to settle */
+ usleep_range(6000, 10000);
+
+ ret = regmap_bulk_read(regmap, AXP288_GP_ADC_H, buf, 2);
+ if (ret == 0)
+ ret = (buf[0] << 4) + ((buf[1] >> 4) & 0x0f);
+
+ regmap_write(regmap, AXP288_ADC_TS_PIN_CTRL, AXP288_ADC_TS_PIN_ON);
- return (buf[0] << 4) + ((buf[1] >> 4) & 0x0F);
+ return ret;
}
static struct intel_pmic_opregion_data intel_xpower_pmic_opregion_data = {
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 476a52c60cf3..09b7974b6c62 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -339,6 +339,9 @@ void acpi_init_properties(struct acpi_device *adev)
INIT_LIST_HEAD(&adev->data.subnodes);
+ if (!adev->handle)
+ return;
+
/*
* Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in
* Device Tree compatible properties for this device.
@@ -373,6 +376,9 @@ void acpi_init_properties(struct acpi_device *adev)
if (acpi_of && !adev->flags.of_compatible_ok)
acpi_handle_info(adev->handle,
ACPI_DT_NAMESPACE_HID " requires 'compatible' property\n");
+
+ if (!adev->data.pointer)
+ acpi_extract_apple_properties(adev);
}
static void acpi_destroy_nondev_subnodes(struct list_head *list)
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index ad0b13ad4bbb..a18463799ad7 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -31,7 +31,7 @@
#include <linux/jiffies.h>
#include <linux/delay.h>
#include <linux/power_supply.h>
-#include <linux/dmi.h>
+#include <linux/platform_data/x86/apple.h>
#include "sbshc.h"
#include "battery.h"
@@ -58,8 +58,6 @@ static unsigned int cache_time = 1000;
module_param(cache_time, uint, 0644);
MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
-static bool sbs_manager_broken;
-
#define MAX_SBS_BAT 4
#define ACPI_SBS_BLOCK_MAX 32
@@ -632,31 +630,12 @@ static void acpi_sbs_callback(void *context)
}
}
-static int disable_sbs_manager(const struct dmi_system_id *d)
-{
- sbs_manager_broken = true;
- return 0;
-}
-
-static struct dmi_system_id acpi_sbs_dmi_table[] = {
- {
- .callback = disable_sbs_manager,
- .ident = "Apple",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc.")
- },
- },
- { },
-};
-
static int acpi_sbs_add(struct acpi_device *device)
{
struct acpi_sbs *sbs;
int result = 0;
int id;
- dmi_check_system(acpi_sbs_dmi_table);
-
sbs = kzalloc(sizeof(struct acpi_sbs), GFP_KERNEL);
if (!sbs) {
result = -ENOMEM;
@@ -677,7 +656,7 @@ static int acpi_sbs_add(struct acpi_device *device)
result = 0;
- if (!sbs_manager_broken) {
+ if (!x86_apple_machine) {
result = acpi_manager_get_info(sbs);
if (!result) {
sbs->manager_present = 1;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9288ce417c74..ac8a8a52ee4a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -13,6 +13,7 @@
#include <linux/dmi.h>
#include <linux/nls.h>
#include <linux/dma-mapping.h>
+#include <linux/platform_data/x86/apple.h>
#include <asm/pgtable.h>
@@ -1527,6 +1528,12 @@ static bool acpi_is_spi_i2c_slave(struct acpi_device *device)
struct list_head resource_list;
bool is_spi_i2c_slave = false;
+ /* Macs use device properties in lieu of _CRS resources */
+ if (x86_apple_machine &&
+ (fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
+ fwnode_property_present(&device->fwnode, "i2cAddress")))
+ return true;
+
INIT_LIST_HEAD(&resource_list);
acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
&is_spi_i2c_slave);
diff --git a/drivers/acpi/x86/apple.c b/drivers/acpi/x86/apple.c
new file mode 100644
index 000000000000..51b4cf9f25da
--- /dev/null
+++ b/drivers/acpi/x86/apple.c
@@ -0,0 +1,141 @@
+/*
+ * apple.c - Apple ACPI quirks
+ * Copyright (C) 2017 Lukas Wunner <lukas@wunner.de>
+ *
+ * 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/acpi.h>
+#include <linux/bitmap.h>
+#include <linux/platform_data/x86/apple.h>
+#include <linux/uuid.h>
+
+/* Apple _DSM device properties GUID */
+static const guid_t apple_prp_guid =
+ GUID_INIT(0xa0b5b7c6, 0x1318, 0x441c,
+ 0xb0, 0xc9, 0xfe, 0x69, 0x5e, 0xaf, 0x94, 0x9b);
+
+/**
+ * acpi_extract_apple_properties - retrieve and convert Apple _DSM properties
+ * @adev: ACPI device for which to retrieve the properties
+ *
+ * Invoke Apple's custom _DSM once to check the protocol version and once more
+ * to retrieve the properties. They are marshalled up in a single package as
+ * alternating key/value elements, unlike _DSD which stores them as a package
+ * of 2-element packages. Convert to _DSD format and make them available under
+ * the primary fwnode.
+ */
+void acpi_extract_apple_properties(struct acpi_device *adev)
+{
+ unsigned int i, j = 0, newsize = 0, numprops, numvalid;
+ union acpi_object *props, *newprops;
+ unsigned long *valid = NULL;
+ void *free_space;
+
+ if (!x86_apple_machine)
+ return;
+
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 0,
+ NULL, ACPI_TYPE_BUFFER);
+ if (!props)
+ return;
+
+ if (!props->buffer.length)
+ goto out_free;
+
+ if (props->buffer.pointer[0] != 3) {
+ acpi_handle_info(adev->handle, FW_INFO
+ "unsupported properties version %*ph\n",
+ props->buffer.length, props->buffer.pointer);
+ goto out_free;
+ }
+
+ ACPI_FREE(props);
+ props = acpi_evaluate_dsm_typed(adev->handle, &apple_prp_guid, 1, 1,
+ NULL, ACPI_TYPE_PACKAGE);
+ if (!props)
+ return;
+
+ numprops = props->package.count / 2;
+ if (!numprops)
+ goto out_free;
+
+ valid = kcalloc(BITS_TO_LONGS(numprops), sizeof(long), GFP_KERNEL);
+ if (!valid)
+ goto out_free;
+
+ /* newsize = key length + value length of each tuple */
+ for (i = 0; i < numprops; i++) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+
+ if ( key->type != ACPI_TYPE_STRING ||
+ (val->type != ACPI_TYPE_INTEGER &&
+ val->type != ACPI_TYPE_BUFFER))
+ continue; /* skip invalid properties */
+
+ __set_bit(i, valid);
+ newsize += key->string.length + 1;
+ if ( val->type == ACPI_TYPE_BUFFER)
+ newsize += val->buffer.length;
+ }
+
+ numvalid = bitmap_weight(valid, numprops);
+ if (numprops > numvalid)
+ acpi_handle_info(adev->handle, FW_INFO
+ "skipped %u properties: wrong type\n",
+ numprops - numvalid);
+ if (numvalid == 0)
+ goto out_free;
+
+ /* newsize += top-level package + 3 objects for each key/value tuple */
+ newsize += (1 + 3 * numvalid) * sizeof(union acpi_object);
+ newprops = ACPI_ALLOCATE_ZEROED(newsize);
+ if (!newprops)
+ goto out_free;
+
+ /* layout: top-level package | packages | key/value tuples | strings */
+ newprops->type = ACPI_TYPE_PACKAGE;
+ newprops->package.count = numvalid;
+ newprops->package.elements = &newprops[1];
+ free_space = &newprops[1 + 3 * numvalid];
+
+ for_each_set_bit(i, valid, numprops) {
+ union acpi_object *key = &props->package.elements[i * 2];
+ union acpi_object *val = &props->package.elements[i * 2 + 1];
+ unsigned int k = 1 + numvalid + j * 2; /* index into newprops */
+ unsigned int v = k + 1;
+
+ newprops[1 + j].type = ACPI_TYPE_PACKAGE;
+ newprops[1 + j].package.count = 2;
+ newprops[1 + j].package.elements = &newprops[k];
+
+ newprops[k].type = ACPI_TYPE_STRING;
+ newprops[k].string.length = key->string.length;
+ newprops[k].string.pointer = free_space;
+ memcpy(free_space, key->string.pointer, key->string.length);
+ free_space += key->string.length + 1;
+
+ newprops[v].type = val->type;
+ if (val->type == ACPI_TYPE_INTEGER) {
+ newprops[v].integer.value = val->integer.value;
+ } else {
+ newprops[v].buffer.length = val->buffer.length;
+ newprops[v].buffer.pointer = free_space;
+ memcpy(free_space, val->buffer.pointer,
+ val->buffer.length);
+ free_space += val->buffer.length;
+ }
+ j++; /* count valid properties */
+ }
+ WARN_ON(free_space != (void *)newprops + newsize);
+
+ adev->data.properties = newprops;
+ adev->data.pointer = newprops;
+
+out_free:
+ ACPI_FREE(props);
+ kfree(valid);
+}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-07 14:19:41 +0300