diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/dptf/dptf_pch_fivr.c | 51 | ||||
| -rw-r--r-- | drivers/acpi/resource.c | 9 |
2 files changed, 44 insertions, 16 deletions
diff --git a/drivers/acpi/dptf/dptf_pch_fivr.c b/drivers/acpi/dptf/dptf_pch_fivr.c index 5fca18296bf6..550b9081fcbc 100644 --- a/drivers/acpi/dptf/dptf_pch_fivr.c +++ b/drivers/acpi/dptf/dptf_pch_fivr.c @@ -9,6 +9,42 @@ #include <linux/module.h> #include <linux/platform_device.h> +struct pch_fivr_resp { + u64 status; + u64 result; +}; + +static int pch_fivr_read(acpi_handle handle, char *method, struct pch_fivr_resp *fivr_resp) +{ + struct acpi_buffer resp = { sizeof(struct pch_fivr_resp), fivr_resp}; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer format = { sizeof("NN"), "NN" }; + union acpi_object *obj; + acpi_status status; + int ret = -EFAULT; + + status = acpi_evaluate_object(handle, method, NULL, &buffer); + if (ACPI_FAILURE(status)) + return ret; + + obj = buffer.pointer; + if (!obj || obj->type != ACPI_TYPE_PACKAGE) + goto release_buffer; + + status = acpi_extract_package(obj, &format, &resp); + if (ACPI_FAILURE(status)) + goto release_buffer; + + if (fivr_resp->status) + goto release_buffer; + + ret = 0; + +release_buffer: + kfree(buffer.pointer); + return ret; +} + /* * Presentation of attributes which are defined for INT1045 * They are: @@ -23,15 +59,14 @@ static ssize_t name##_show(struct device *dev,\ char *buf)\ {\ struct acpi_device *acpi_dev = dev_get_drvdata(dev);\ - unsigned long long val;\ - acpi_status status;\ + struct pch_fivr_resp fivr_resp;\ + int status;\ \ - status = acpi_evaluate_integer(acpi_dev->handle, #method,\ - NULL, &val);\ - if (ACPI_SUCCESS(status))\ - return sprintf(buf, "%d\n", (int)val);\ - else\ - return -EINVAL;\ + status = pch_fivr_read(acpi_dev->handle, #method, &fivr_resp);\ + if (status)\ + return status;\ +\ + return sprintf(buf, "%llu\n", fivr_resp.result);\ } #define PCH_FIVR_STORE(name, method) \ diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index dc01fb550b28..ee78a210c606 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -423,13 +423,6 @@ static void acpi_dev_get_irqresource(struct resource *res, u32 gsi, } } -static bool irq_is_legacy(struct acpi_resource_irq *irq) -{ - return irq->triggering == ACPI_EDGE_SENSITIVE && - irq->polarity == ACPI_ACTIVE_HIGH && - irq->shareable == ACPI_EXCLUSIVE; -} - /** * acpi_dev_resource_interrupt - Extract ACPI interrupt resource information. * @ares: Input ACPI resource object. @@ -468,7 +461,7 @@ bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index, } acpi_dev_get_irqresource(res, irq->interrupts[index], irq->triggering, irq->polarity, - irq->shareable, irq_is_legacy(irq)); + irq->shareable, true); break; case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: ext_irq = &ares->data.extended_irq; |