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authorWenjing Liu <wenjing.liu@amd.com>2022-12-12 13:52:57 -0500
committerAlex Deucher <alexander.deucher@amd.com>2023-01-13 14:57:40 -0500
commita98cdd8c485600a2cfc15508a38c13c49b551fb1 (patch)
treece743a2a2a846fc831a63ec3f05c211274c7f331 /drivers/gpu/drm/amd/display/dc/dc_link.h
parent4370f72e3845a1741c6db8ba149c483f57352fd5 (diff)
drm/amd/display: refactor ddc logic from dc_link_ddc to link_ddc
[why] 1. Move dd_link_ddc functions to link_ddc. 2. Move link ddc functions declaration exposed in dc to link.h 3. Move link ddc functions declaration exposed in dm to dc_link.h 4. Remove i2caux_interface.h file Tested-by: Daniel Wheeler <Daniel.Wheeler@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dc_link.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h
index fbd6f11a63db..d0d2d964d601 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_link.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_link.h
@@ -31,6 +31,7 @@
#include "grph_object_defs.h"
struct link_resource;
+enum aux_return_code_type;
enum dc_link_fec_state {
dc_link_fec_not_ready,
@@ -591,4 +592,13 @@ unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link);
/* Destruct the mst topology of the link and reset the allocated payload table */
bool reset_cur_dp_mst_topology(struct dc_link *link);
+
+/* Attempt to transfer the given aux payload. This function does not perform
+ * retries or handle error states. The reply is returned in the payload->reply
+ * and the result through operation_result. Returns the number of bytes
+ * transferred,or -1 on a failure.
+ */
+int dc_link_aux_transfer_raw(struct ddc_service *ddc,
+ struct aux_payload *payload,
+ enum aux_return_code_type *operation_result);
#endif /* DC_LINK_H_ */