From c2223ddcfe64864c9a6541c0ffe22d96255597e0 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Thu, 27 Jun 2019 10:24:07 +0100 Subject: [PATCH] i2c: acpi: Use available IRQ helper functions Use the available IRQ helper functions, most of the functions have additional helpful side affects like configuring the trigger type of the IRQ. Reviewed-by: Andy Shevchenko Signed-off-by: Charles Keepax Reviewed-by: Mika Westerberg Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-core-acpi.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index 9646875..d3474d1 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -137,13 +137,23 @@ static int i2c_acpi_do_lookup(struct acpi_device *adev, return 0; } +static int i2c_acpi_add_resource(struct acpi_resource *ares, void *data) +{ + int *irq = data; + struct resource r; + + if (*irq <= 0 && acpi_dev_resource_interrupt(ares, 0, &r)) + *irq = i2c_dev_irq_from_resources(&r, 1); + + return 1; /* No need to add resource to the list */ +} + static int i2c_acpi_get_info(struct acpi_device *adev, struct i2c_board_info *info, struct i2c_adapter *adapter, acpi_handle *adapter_handle) { struct list_head resource_list; - struct resource_entry *entry; struct i2c_acpi_lookup lookup; int ret; @@ -176,17 +186,11 @@ static int i2c_acpi_get_info(struct acpi_device *adev, /* Then fill IRQ number if any */ INIT_LIST_HEAD(&resource_list); - ret = acpi_dev_get_resources(adev, &resource_list, NULL, NULL); + ret = acpi_dev_get_resources(adev, &resource_list, + i2c_acpi_add_resource, &info->irq); if (ret < 0) return -EINVAL; - resource_list_for_each_entry(entry, &resource_list) { - if (resource_type(entry->res) == IORESOURCE_IRQ) { - info->irq = entry->res->start; - break; - } - } - acpi_dev_free_resource_list(&resource_list); acpi_set_modalias(adev, dev_name(&adev->dev), info->type, -- 2.7.4