diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 81 |
1 files changed, 53 insertions, 28 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 7099ff9cf8c5..d31460a9e958 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -147,6 +147,7 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, struct acpi_buffer *params) { acpi_status status; + union acpi_object *obj; union acpi_object atif_arg_elements[2]; struct acpi_object_list atif_arg; struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -169,16 +170,24 @@ static union acpi_object *amdgpu_atif_call(struct amdgpu_atif *atif, status = acpi_evaluate_object(atif->handle, NULL, &atif_arg, &buffer); + obj = (union acpi_object *)buffer.pointer; - /* Fail only if calling the method fails and ATIF is supported */ - if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { + /* Fail if calling the method fails */ + if (ACPI_FAILURE(status)) { DRM_DEBUG_DRIVER("failed to evaluate ATIF got %s\n", acpi_format_exception(status)); - kfree(buffer.pointer); + kfree(obj); return NULL; } - return buffer.pointer; + if (obj->type != ACPI_TYPE_BUFFER) { + DRM_DEBUG_DRIVER("bad object returned from ATIF: %d\n", + obj->type); + kfree(obj); + return NULL; + } + + return obj; } /** @@ -383,6 +392,12 @@ static int amdgpu_atif_query_backlight_caps(struct amdgpu_atif *atif) characteristics.min_input_signal; atif->backlight_caps.max_input_signal = characteristics.max_input_signal; + atif->backlight_caps.ac_level = characteristics.ac_level; + atif->backlight_caps.dc_level = characteristics.dc_level; + atif->backlight_caps.data_points = characteristics.number_of_points; + memcpy(atif->backlight_caps.luminance_data, + characteristics.data_points, + sizeof(atif->backlight_caps.luminance_data)); out: kfree(info); return err; @@ -492,7 +507,6 @@ static int amdgpu_atif_handler(struct amdgpu_device *adev, pm_runtime_get_sync(adev_to_drm(adev)->dev); /* Just fire off a uevent and let userspace tell us what to do */ drm_helper_hpd_irq_event(adev_to_drm(adev)); - pm_runtime_mark_last_busy(adev_to_drm(adev)->dev); pm_runtime_put_autosuspend(adev_to_drm(adev)->dev); } } @@ -789,24 +803,25 @@ int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev, return -EIO; } + kfree(info); return 0; } /** * amdgpu_acpi_smart_shift_update - update dGPU device state to SBIOS * - * @dev: drm_device pointer + * @adev: amdgpu device pointer * @ss_state: current smart shift event * * returns 0 on success, * otherwise return error number. */ -int amdgpu_acpi_smart_shift_update(struct drm_device *dev, enum amdgpu_ss ss_state) +int amdgpu_acpi_smart_shift_update(struct amdgpu_device *adev, + enum amdgpu_ss ss_state) { - struct amdgpu_device *adev = drm_to_adev(dev); int r; - if (!amdgpu_device_supports_smart_shift(dev)) + if (!amdgpu_device_supports_smart_shift(adev)) return 0; switch (ss_state) { @@ -1265,9 +1280,7 @@ void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps) { struct amdgpu_atif *atif = &amdgpu_acpi_priv.atif; - caps->caps_valid = atif->backlight_caps.caps_valid; - caps->min_input_signal = atif->backlight_caps.min_input_signal; - caps->max_input_signal = atif->backlight_caps.max_input_signal; + memcpy(caps, &atif->backlight_caps, sizeof(*caps)); } /** @@ -1518,23 +1531,35 @@ bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) return true; #endif /* CONFIG_AMD_PMC */ } +#endif /* CONFIG_SUSPEND */ -/** - * amdgpu_choose_low_power_state - * - * @adev: amdgpu_device_pointer - * - * Choose the target low power state for the GPU - */ -void amdgpu_choose_low_power_state(struct amdgpu_device *adev) -{ - if (adev->in_runpm) - return; +#if IS_ENABLED(CONFIG_DRM_AMD_ISP) +static const struct acpi_device_id isp_sensor_ids[] = { + { "OMNI5C10" }, + { } +}; - if (amdgpu_acpi_is_s0ix_active(adev)) - adev->in_s0ix = true; - else if (amdgpu_acpi_is_s3_active(adev)) - adev->in_s3 = true; +static int isp_match_acpi_device_ids(struct device *dev, const void *data) +{ + return acpi_match_device(data, dev) ? 1 : 0; } -#endif /* CONFIG_SUSPEND */ +int amdgpu_acpi_get_isp4_dev(struct acpi_device **dev) +{ + struct device *pdev __free(put_device) = NULL; + struct acpi_device *acpi_pdev; + + pdev = bus_find_device(&platform_bus_type, NULL, isp_sensor_ids, + isp_match_acpi_device_ids); + if (!pdev) + return -EINVAL; + + acpi_pdev = ACPI_COMPANION(pdev); + if (!acpi_pdev) + return -ENODEV; + + *dev = acpi_pdev; + + return 0; +} +#endif /* CONFIG_DRM_AMD_ISP */ |