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Commit 2953da15 authored by Alex Deucher's avatar Alex Deucher Committed by Christian König
Browse files

drm/radeon/dp: move sink power control to a separate function 



This will be used elsewhere.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarChristian König <christian.koenig@amd.com>
parent f3381dfc

drivers/gpu/drm/radeon/atombios_dp.c

+21 −5
Original line number Diff line number Diff line
@@ -603,6 +603,26 @@ bool radeon_dp_needs_link_train(struct radeon_connector *radeon_connector) 
	return true;

}



void radeon_dp_set_rx_power_state(struct drm_connector *connector,

				  u8 power_state)

{

	struct radeon_connector *radeon_connector = to_radeon_connector(connector);

	struct radeon_connector_atom_dig *dig_connector;



	if (!radeon_connector->con_priv)

		return;



	dig_connector = radeon_connector->con_priv;



	/* power up/down the sink */

	if (dig_connector->dpcd[0] >= 0x11) {

		radeon_write_dpcd_reg(radeon_connector,

				   DP_SET_POWER, power_state);

		usleep_range(1000, 2000);

	}

}





struct radeon_dp_link_train_info {

	struct radeon_device *rdev;

	struct drm_encoder *encoder;
@@ -673,11 +693,7 @@ static int radeon_dp_link_train_init(struct radeon_dp_link_train_info *dp_info) 
	u8 tmp;



	/* power up the sink */

	if (dp_info->dpcd[0] >= 0x11) {

		radeon_write_dpcd_reg(dp_info->radeon_connector,

				      DP_SET_POWER, DP_SET_POWER_D0);

		usleep_range(1000, 2000);

	}

	radeon_dp_set_rx_power_state(dp_info->connector, DP_SET_POWER_D0);



	/* possibly enable downspread on the sink */

	if (dp_info->dpcd[3] & 0x1)

drivers/gpu/drm/radeon/radeon_mode.h

+2 −0
Original line number Diff line number Diff line
@@ -690,6 +690,8 @@ extern u8 radeon_dp_getsinktype(struct radeon_connector *radeon_connector); 
extern bool radeon_dp_getdpcd(struct radeon_connector *radeon_connector);

extern int radeon_dp_get_panel_mode(struct drm_encoder *encoder,

				    struct drm_connector *connector);

extern void radeon_dp_set_rx_power_state(struct drm_connector *connector,

					 u8 power_state);

extern void atombios_dig_encoder_setup(struct drm_encoder *encoder, int action, int panel_mode);

extern void radeon_atom_encoder_init(struct radeon_device *rdev);

extern void radeon_atom_disp_eng_pll_init(struct radeon_device *rdev);