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authorTomeu Vizoso <tomeu.vizoso@collabora.com>2017-03-03 14:39:35 +0100
committerSean Paul <seanpaul@chromium.org>2017-03-06 12:14:27 -0500
commit737d6e339f50dcdbd5a8444d04dede2f0d305361 (patch)
tree5432fabf4d8506b2903db17f2bfb3cdbcea877ea /drivers/gpu/drm
parent79c1da7c3bf74be9b1dae9450ef79f32dd22def6 (diff)
downloadop-kernel-dev-737d6e339f50dcdbd5a8444d04dede2f0d305361.zip
op-kernel-dev-737d6e339f50dcdbd5a8444d04dede2f0d305361.tar.gz
drm/bridge: analogix_dp: add helpers for capture of frame CRCs
Add two simple functions that just take the drm_dp_aux from our struct and calls the corresponding DP helpers with it. v6: Pass to the DP helper the drm_crtc of the current connector (Sean Paul) Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20170303133936.14964-4-tomeu.vizoso@collabora.com
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/bridge/analogix/analogix_dp_core.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index e7cd105..c26997a 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1488,6 +1488,28 @@ int analogix_dp_resume(struct device *dev)
EXPORT_SYMBOL_GPL(analogix_dp_resume);
#endif
+int analogix_dp_start_crc(struct drm_connector *connector)
+{
+ struct analogix_dp_device *dp = to_dp(connector);
+
+ if (!connector->state->crtc) {
+ DRM_ERROR("Connector %s doesn't currently have a CRTC.\n",
+ connector->name);
+ return -EINVAL;
+ }
+
+ return drm_dp_start_crc(&dp->aux, connector->state->crtc);
+}
+EXPORT_SYMBOL_GPL(analogix_dp_start_crc);
+
+int analogix_dp_stop_crc(struct drm_connector *connector)
+{
+ struct analogix_dp_device *dp = to_dp(connector);
+
+ return drm_dp_stop_crc(&dp->aux);
+}
+EXPORT_SYMBOL_GPL(analogix_dp_stop_crc);
+
MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
MODULE_DESCRIPTION("Analogix DP Core Driver");
MODULE_LICENSE("GPL v2");
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