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drm/amd/display: Added documentation for some DC interface functions 

Signed-off-by: Yasir Al Shekerchi <YasirAl.Shekerchi@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yasir Al Shekerchi 2018-05-04 16:53:03 -04:00 committed by Alex Deucher
parent 43610a9be1
commit a27f199677
3 changed files with 43 additions and 0 deletions
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16
drivers/gpu/drm/amd/display/dc/core/dc.c
View File

@ -169,6 +169,22 @@ static bool create_links(
return false;
}
/**
*****************************************************************************
* Function: dc_stream_adjust_vmin_vmax
*
* @brief
* Looks up the pipe context of dc_stream_state and updates the
* vertical_total_min and vertical_total_max of the DRR, Dynamic Refresh
* Rate, which is a power-saving feature that targets reducing panel
* refresh rate while the screen is static
*
* @param [in] dc: dc reference
* @param [in] stream: Initial dc stream state
* @param [in] adjust: Updated parameters for vertical_total_min and
* vertical_total_max
*****************************************************************************
*/
bool dc_stream_adjust_vmin_vmax(struct dc *dc,
struct dc_stream_state **streams, int num_streams,
int vmin, int vmax)

16
drivers/gpu/drm/amd/display/dc/core/dc_link.c
View File

@ -2433,6 +2433,22 @@ void core_link_set_avmute(struct pipe_ctx *pipe_ctx, bool enable)
core_dc->hwss.set_avmute(pipe_ctx, enable);
}
/**
*****************************************************************************
* Function: dc_link_enable_hpd_filter
*
* @brief
* If enable is true, programs HPD filter on associated HPD line using
* delay_on_disconnect/delay_on_connect values dependent on
* link->connector_signal
*
* If enable is false, programs HPD filter on associated HPD line with no
* delays on connect or disconnect
*
* @param [in] link: pointer to the dc link
* @param [in] enable: boolean specifying whether to enable hbd
*****************************************************************************
*/
void dc_link_enable_hpd_filter(struct dc_link *link, bool enable)
{
struct gpio *hpd;

11
drivers/gpu/drm/amd/display/dc/core/dc_surface.c
View File

@ -84,6 +84,17 @@ struct dc_plane_state *dc_create_plane_state(struct dc *dc)
return plane_state;
}
/**
*****************************************************************************
* Function: dc_plane_get_status
*
* @brief
* Looks up the pipe context of plane_state and updates the pending status
* of the pipe context. Then returns plane_state->status
*
* @param [in] plane_state: pointer to the plane_state to get the status of
*****************************************************************************
*/
const struct dc_plane_status *dc_plane_get_status(
const struct dc_plane_state *plane_state)
{