Commit 2b230ea3 authored by Zeyu Fan's avatar Zeyu Fan Committed by Alex Deucher
Browse files

drm/amd/display: Add query_ddc_data function 



Signed-off-by: default avatarZeyu Fan <Zeyu.Fan@amd.com>
Reviewed-by: default avatarCharlene Liu <Charlene.Liu@amd.com>
Acked-by: default avatarHarry Wentland <Harry.Wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 70063a59

drivers/gpu/drm/amd/display/dc/core/dc.c

+25 −0
Original line number Diff line number Diff line
@@ -1725,6 +1725,31 @@ bool dc_read_dpcd( 
	return r == DDC_RESULT_SUCESSFULL;

}



bool dc_query_ddc_data(

		struct dc *dc,

		uint32_t link_index,

		uint32_t address,

		uint8_t *write_buf,

		uint32_t write_size,

		uint8_t *read_buf,

		uint32_t read_size) {



	struct core_dc *core_dc = DC_TO_CORE(dc);



	struct core_link *link = core_dc->links[link_index];



	bool result = dal_ddc_service_query_ddc_data(

			link->ddc,

			address,

			write_buf,

			write_size,

			read_buf,

			read_size);



	return result;

}





bool dc_write_dpcd(

		struct dc *dc,

		uint32_t link_index,

drivers/gpu/drm/amd/display/dc/dc.h

+10 −1
Original line number Diff line number Diff line
@@ -722,6 +722,15 @@ bool dc_write_dpcd( 
		const uint8_t *data,

		uint32_t size);



bool dc_query_ddc_data(

		struct dc *dc,

		uint32_t link_index,

		uint32_t address,

		uint8_t *write_buf,

		uint32_t write_size,

		uint8_t *read_buf,

		uint32_t read_size);



bool dc_submit_i2c(

		struct dc *dc,

		uint32_t link_index,