"controller@pin combos on which to ignore the ACPI wake flag "
"ignore_wake=controller@pin[,controller@pin[,...]]");
+static char *ignore_interrupt;
+module_param(ignore_interrupt, charp, 0444);
+MODULE_PARM_DESC(ignore_interrupt,
+ "controller@pin combos on which to ignore interrupt "
+ "ignore_interrupt=controller@pin[,controller@pin[,...]]");
+
struct acpi_gpiolib_dmi_quirk {
bool no_edge_events_on_boot;
char *ignore_wake;
+ char *ignore_interrupt;
};
/**
return desc;
}
-static bool acpi_gpio_in_ignore_list(const char *controller_in, unsigned int pin_in)
+static bool acpi_gpio_in_ignore_list(const char *ignore_list, const char *controller_in,
+ unsigned int pin_in)
{
const char *controller, *pin_str;
unsigned int pin;
char *endp;
int len;
- controller = ignore_wake;
+ controller = ignore_list;
while (controller) {
pin_str = strchr(controller, '@');
if (!pin_str)
return false;
err:
- pr_err_once("Error: Invalid value for gpiolib_acpi.ignore_wake: %s\n", ignore_wake);
+ pr_err_once("Error: Invalid value for gpiolib_acpi.ignore_...: %s\n", ignore_list);
return false;
}
if (agpio->wake_capable != ACPI_WAKE_CAPABLE)
return false;
- if (acpi_gpio_in_ignore_list(dev_name(parent), pin)) {
+ if (acpi_gpio_in_ignore_list(ignore_wake, dev_name(parent), pin)) {
dev_info(parent, "Ignoring wakeup on pin %u\n", pin);
return false;
}
goto fail_unlock_irq;
}
+ if (acpi_gpio_in_ignore_list(ignore_interrupt, dev_name(chip->parent), pin)) {
+ dev_info(chip->parent, "Ignoring interrupt on pin %u\n", pin);
+ return AE_OK;
+ }
+
event = kzalloc(sizeof(*event), GFP_KERNEL);
if (!event)
goto fail_unlock_irq;
lookup->info.pin_config = agpio->pin_config;
lookup->info.debounce = agpio->debounce_timeout;
lookup->info.gpioint = gpioint;
+ lookup->info.wake_capable = agpio->wake_capable == ACPI_WAKE_CAPABLE;
/*
* Polarity and triggering are only specified for GpioInt
}
/**
- * acpi_dev_gpio_irq_get_by() - Find GpioInt and translate it to Linux IRQ number
+ * acpi_dev_gpio_irq_wake_get_by() - Find GpioInt and translate it to Linux IRQ number
* @adev: pointer to a ACPI device to get IRQ from
* @name: optional name of GpioInt resource
* @index: index of GpioInt resource (starting from %0)
+ * @wake_capable: Set to true if the IRQ is wake capable
*
* If the device has one or more GpioInt resources, this function can be
* used to translate from the GPIO offset in the resource to the Linux IRQ
* The function takes optional @name parameter. If the resource has a property
* name, then only those will be taken into account.
*
+ * The GPIO is considered wake capable if the GpioInt resource specifies
+ * SharedAndWake or ExclusiveAndWake.
+ *
* Return: Linux IRQ number (> %0) on success, negative errno on failure.
*/
- int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index)
+ int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index,
+ bool *wake_capable)
{
int idx, i;
unsigned int irq_flags;
dev_dbg(&adev->dev, "IRQ %d already in use\n", irq);
}
+ if (wake_capable)
+ *wake_capable = info.wake_capable;
+
return irq;
}
}
return -ENOENT;
}
- EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_get_by);
+ EXPORT_SYMBOL_GPL(acpi_dev_gpio_irq_wake_get_by);
static acpi_status
acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
.ignore_wake = "INT33FF:01@0",
},
},
+ {
+ /*
+ * Interrupt storm caused from edge triggered floating pin
+ * Found in BIOS UX325UAZ.300
+ * https://bugzilla.kernel.org/show_bug.cgi?id=216208
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UAZ_UM325UAZ"),
+ },
+ .driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+ .ignore_interrupt = "AMDI0030:00@18",
+ },
+ },
{} /* Terminating entry */
};
if (ignore_wake == NULL && quirk && quirk->ignore_wake)
ignore_wake = quirk->ignore_wake;
+ if (ignore_interrupt == NULL && quirk && quirk->ignore_interrupt)
+ ignore_interrupt = quirk->ignore_interrupt;
+
return 0;
}
union {
u16 wdata;
u8 bdata;
- u8 data[0];
+ DECLARE_FLEX_ARRAY(u8, data);
};
} __packed;
{}
};
+ struct i2c_acpi_irq_context {
+ int irq;
+ bool wake_capable;
+ };
+
static int i2c_acpi_do_lookup(struct acpi_device *adev,
struct i2c_acpi_lookup *lookup)
{
return 0;
}
- static int i2c_acpi_add_resource(struct acpi_resource *ares, void *data)
+ static int i2c_acpi_add_irq_resource(struct acpi_resource *ares, void *data)
{
- int *irq = data;
+ struct i2c_acpi_irq_context *irq_ctx = data;
struct resource r;
- if (*irq <= 0 && acpi_dev_resource_interrupt(ares, 0, &r))
- *irq = i2c_dev_irq_from_resources(&r, 1);
+ if (irq_ctx->irq > 0)
+ return 1;
+
+ if (!acpi_dev_resource_interrupt(ares, 0, &r))
+ return 1;
+
+ irq_ctx->irq = i2c_dev_irq_from_resources(&r, 1);
+ irq_ctx->wake_capable = r.flags & IORESOURCE_IRQ_WAKECAPABLE;
return 1; /* No need to add resource to the list */
}
/**
* i2c_acpi_get_irq - get device IRQ number from ACPI
* @client: Pointer to the I2C client device
+ * @wake_capable: Set to true if the IRQ is wake capable
*
* Find the IRQ number used by a specific client device.
*
* Return: The IRQ number or an error code.
*/
- int i2c_acpi_get_irq(struct i2c_client *client)
+ int i2c_acpi_get_irq(struct i2c_client *client, bool *wake_capable)
{
struct acpi_device *adev = ACPI_COMPANION(&client->dev);
struct list_head resource_list;
- int irq = -ENOENT;
+ struct i2c_acpi_irq_context irq_ctx = {
+ .irq = -ENOENT,
+ };
int ret;
INIT_LIST_HEAD(&resource_list);
ret = acpi_dev_get_resources(adev, &resource_list,
- i2c_acpi_add_resource, &irq);
+ i2c_acpi_add_irq_resource, &irq_ctx);
if (ret < 0)
return ret;
acpi_dev_free_resource_list(&resource_list);
- if (irq == -ENOENT)
- irq = acpi_dev_gpio_irq_get(adev, 0);
+ if (irq_ctx.irq == -ENOENT)
+ irq_ctx.irq = acpi_dev_gpio_irq_wake_get(adev, 0, &irq_ctx.wake_capable);
+
+ if (irq_ctx.irq < 0)
+ return irq_ctx.irq;
+
+ if (wake_capable)
+ *wake_capable = irq_ctx.wake_capable;
- return irq;
+ return irq_ctx.irq;
}
static int i2c_acpi_get_info(struct acpi_device *adev,
if (irq == -EINVAL || irq == -ENODATA)
irq = of_irq_get(dev->of_node, 0);
} else if (ACPI_COMPANION(dev)) {
- irq = i2c_acpi_get_irq(client);
+ bool wake_capable;
+
+ irq = i2c_acpi_get_irq(client, &wake_capable);
+ if (irq > 0 && wake_capable)
+ client->flags |= I2C_CLIENT_WAKE;
}
if (irq == -EPROBE_DEFER) {
status = irq;
driver = to_i2c_driver(dev->driver);
if (driver->remove) {
- int status;
-
dev_dbg(dev, "remove\n");
- status = driver->remove(client);
- if (status)
- dev_warn(dev, "remove failed (%pe), will be ignored\n", ERR_PTR(status));
+ driver->remove(client);
}
devres_release_group(&client->dev, client->devres_group_id);
for_each_acpi_consumer_dev(adev, consumer) {
sensor_name = devm_kasprintf(dev, GFP_KERNEL, I2C_DEV_NAME_FORMAT,
acpi_dev_name(consumer));
- if (!sensor_name)
+ if (!sensor_name) {
+ acpi_dev_put(consumer);
return -ENOMEM;
+ }
(*clk_pdata)->consumers[i].consumer_dev_name = sensor_name;
i++;
}
- acpi_dev_put(consumer);
-
return n_consumers;
}
return ret;
}
-static int skl_int3472_tps68470_remove(struct i2c_client *client)
+static void skl_int3472_tps68470_remove(struct i2c_client *client)
{
const struct int3472_tps68470_board_data *board_data;
int i;
for (i = 0; i < board_data->n_gpiod_lookups; i++)
gpiod_remove_lookup_table(board_data->tps68470_gpio_lookup_tables[i]);
}
-
- return 0;
}
static const struct acpi_device_id int3472_device_id[] = {
struct resource_win *win);
bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
struct resource_win *win);
- unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
+ unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable, u8 wake_capable);
unsigned int acpi_dev_get_irq_type(int triggering, int polarity);
bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
struct resource *res);
struct acpi_s2idle_dev_ops {
struct list_head list_node;
void (*prepare)(void);
+ void (*check)(void);
void (*restore)(void);
};
int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
struct acpi_resource_gpio **agpio);
bool acpi_gpio_get_io_resource(struct acpi_resource *ares,
struct acpi_resource_gpio **agpio);
- int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name, int index);
+ int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name, int index,
+ bool *wake_capable);
#else
static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares,
struct acpi_resource_gpio **agpio)
{
return false;
}
- static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev,
- const char *name, int index)
+ static inline int acpi_dev_gpio_irq_wake_get_by(struct acpi_device *adev, const char *name,
+ int index, bool *wake_capable)
{
return -ENXIO;
}
#endif
+ static inline int acpi_dev_gpio_irq_wake_get(struct acpi_device *adev, int index,
+ bool *wake_capable)
+ {
+ return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, wake_capable);
+ }
+
+ static inline int acpi_dev_gpio_irq_get_by(struct acpi_device *adev, const char *name,
+ int index)
+ {
+ return acpi_dev_gpio_irq_wake_get_by(adev, name, index, NULL);
+ }
+
static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
{
- return acpi_dev_gpio_irq_get_by(adev, NULL, index);
+ return acpi_dev_gpio_irq_wake_get_by(adev, NULL, index, NULL);
}
/* Device properties */
#define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
#define IORESOURCE_IRQ_LOWLEVEL (1<<3)
#define IORESOURCE_IRQ_SHAREABLE (1<<4)
- #define IORESOURCE_IRQ_OPTIONAL (1<<5)
+ #define IORESOURCE_IRQ_OPTIONAL (1<<5)
+ #define IORESOURCE_IRQ_WAKECAPABLE (1<<6)
/* PnP DMA specific bits (IORESOURCE_BITS) */
#define IORESOURCE_DMA_TYPE_MASK (3<<0)
#define DEFINE_RES_MEM(_start, _size) \
DEFINE_RES_MEM_NAMED((_start), (_size), NULL)
+#define DEFINE_RES_REG_NAMED(_start, _size, _name) \
+ DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_REG)
+#define DEFINE_RES_REG(_start, _size) \
+ DEFINE_RES_REG_NAMED((_start), (_size), NULL)
+
#define DEFINE_RES_IRQ_NAMED(_irq, _name) \
DEFINE_RES_NAMED((_irq), 1, (_name), IORESOURCE_IRQ)
#define DEFINE_RES_IRQ(_irq) \
projects / linux.git / commitdiff