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drm/i915: Extract intel_ddi_power_up_lanes() 

Reduce the copypasta by pulling the combo PHY lane
power up stuff into a helper. We'll have a third user soon.

Cc: stable@vger.kernel.org
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210128155948.13678-2-ville.syrjala@linux.intel.com
Reviewed-by: Imre Deak <imre.deak@intel.com>
(cherry picked from commit 5cdf706fb9)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2021-01-28 17:59:45 +02:00 committed by Jani Nikula
parent eaf5bfe37d
commit 425cbd1fce
1 changed files with 19 additions and 16 deletions
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35
drivers/gpu/drm/i915/display/intel_ddi.c
View File

@ -3537,6 +3537,23 @@ static void intel_ddi_disable_fec_state(struct intel_encoder *encoder,
intel_de_posting_read(dev_priv, dp_tp_ctl_reg(encoder, crtc_state));
}
static void intel_ddi_power_up_lanes(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
enum phy phy = intel_port_to_phy(i915, encoder->port);
if (intel_phy_is_combo(i915, phy)) {
bool lane_reversal =
dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
intel_combo_phy_power_up_lanes(i915, phy, false,
crtc_state->lane_count,
lane_reversal);
}
}
static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
@ -3626,14 +3643,7 @@ static void tgl_ddi_pre_enable_dp(struct intel_atomic_state *state,
* 7.f Combo PHY: Configure PORT_CL_DW10 Static Power Down to power up
* the used lanes of the DDI.
*/
if (intel_phy_is_combo(dev_priv, phy)) {
bool lane_reversal =
dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
intel_combo_phy_power_up_lanes(dev_priv, phy, false,
crtc_state->lane_count,
lane_reversal);
}
intel_ddi_power_up_lanes(encoder, crtc_state);
/*
* 7.g Configure and enable DDI_BUF_CTL
@ -3718,14 +3728,7 @@ static void hsw_ddi_pre_enable_dp(struct intel_atomic_state *state,
else
intel_prepare_dp_ddi_buffers(encoder, crtc_state);
if (intel_phy_is_combo(dev_priv, phy)) {
bool lane_reversal =
dig_port->saved_port_bits & DDI_BUF_PORT_REVERSAL;
intel_combo_phy_power_up_lanes(dev_priv, phy, false,
crtc_state->lane_count,
lane_reversal);
}
intel_ddi_power_up_lanes(encoder, crtc_state);
intel_ddi_init_dp_buf_reg(encoder, crtc_state);
if (!is_mst)