[PATCH] drm/amdgpu: skip TV/CV in display parsing

[PATCH] drm/amdgpu: skip TV/CV in display parsing

[Alex Deucher]

No asics supported by amdgpu support analog TV.

Workaround for bug:
https://bugs.freedesktop.org/show_bug.cgi?id=97460

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
index 1514223..fe872b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
@@ -321,6 +321,13 @@ bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *
 			    (le16_to_cpu(path->usConnObjectId) &
 			     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
 
+			/* Skip TV/CV support */
+			if ((le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_TV1_SUPPORT) ||
+			    (le16_to_cpu(path->usDeviceTag) ==
+			     ATOM_DEVICE_CV_SUPPORT))
+				continue;
+
 			if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
 				DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
 					  con_obj_id, le16_to_cpu(path->usDeviceTag));
-- 
2.5.5

Re: [PATCH] drm/amdgpu: skip TV/CV in display parsing

[Christian König]

Am 24.08.2016 um 19:06 schrieb Alex Deucher:
> No asics supported by amdgpu support analog TV.
>
> Workaround for bug:
> https://bugs.freedesktop.org/show_bug.cgi?id=97460
>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Why in the world would any BIOS amdgpu has to deal with have such entries?

Anyway patch is Reviewed-by: Christian König <christian.koenig@amd.com>.

> Cc: stable@vger.kernel.org
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> index 1514223..fe872b8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> @@ -321,6 +321,13 @@ bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *
>   			    (le16_to_cpu(path->usConnObjectId) &
>   			     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
>   
> +			/* Skip TV/CV support */
> +			if ((le16_to_cpu(path->usDeviceTag) ==
> +			     ATOM_DEVICE_TV1_SUPPORT) ||
> +			    (le16_to_cpu(path->usDeviceTag) ==
> +			     ATOM_DEVICE_CV_SUPPORT))
> +				continue;
> +
>   			if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
>   				DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
>   					  con_obj_id, le16_to_cpu(path->usDeviceTag));

Re: [PATCH] drm/amdgpu: skip TV/CV in display parsing

[Christian König]

Am 24.08.2016 um 19:06 schrieb Alex Deucher:
> No asics supported by amdgpu support analog TV.
>
> Workaround for bug:
> https://bugs.freedesktop.org/show_bug.cgi?id=97460
>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Why in the world would any BIOS amdgpu has to deal with have such entries?

Anyway patch is Reviewed-by: Christian König <christian.koenig@amd.com>.

> Cc: stable@vger.kernel.org
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 7 +++++++
>   1 file changed, 7 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> index 1514223..fe872b8 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
> @@ -321,6 +321,13 @@ bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *
>   			    (le16_to_cpu(path->usConnObjectId) &
>   			     OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
>   
> +			/* Skip TV/CV support */
> +			if ((le16_to_cpu(path->usDeviceTag) ==
> +			     ATOM_DEVICE_TV1_SUPPORT) ||
> +			    (le16_to_cpu(path->usDeviceTag) ==
> +			     ATOM_DEVICE_CV_SUPPORT))
> +				continue;
> +
>   			if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
>   				DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
>   					  con_obj_id, le16_to_cpu(path->usDeviceTag));


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