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| author | Mahesh Kumar <mahesh1.kumar@intel.com> | 2018-07-13 15:59:33 +0200 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2018-08-13 14:00:20 +0200 |
| commit | d5cc15a0c66e207d5a7f1b92f32899cc8f380468 (patch) | |
| tree | 1263869c956b0df19e6c9e75d2cc3da4a365aac1 /include/drm/drm_crtc.h | |
| parent | drm/virtio: Replace drm_dev_unref with drm_dev_put (diff) | |
| download | linux-d5cc15a0c66e207d5a7f1b92f32899cc8f380468.tar.xz linux-d5cc15a0c66e207d5a7f1b92f32899cc8f380468.zip | |
drm: crc: Introduce verify_crc_source callback
This patch adds a new callback function "verify_crc_source" which will
be used during setting the crc source in control node. This will help
in avoiding setting of wrong string for source.
Changes since V1:
- do not yet verify_crc_source during open.
Changes since V1:
- improve callback description
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Cc: dri-devel@lists.freedesktop.org
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180713135942.25061-2-mahesh1.kumar@intel.com
Diffstat (limited to 'include/drm/drm_crtc.h')
| -rw-r--r-- | include/drm/drm_crtc.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 92e7fc7f05a4..9dcbce93aeae 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -746,6 +746,22 @@ struct drm_crtc_funcs { */ int (*set_crc_source)(struct drm_crtc *crtc, const char *source, size_t *values_cnt); + /** + * @verify_crc_source: + * + * verifies the source of CRC checksums of frames before setting the + * source for CRC and during crc open. Source parameter can be NULL + * while disabling crc source. + * + * This callback is optional if the driver does not support any CRC + * generation functionality. + * + * RETURNS: + * + * 0 on success or a negative error code on failure. + */ + int (*verify_crc_source)(struct drm_crtc *crtc, const char *source, + size_t *values_cnt); /** * @atomic_print_state: |