On Tue, 10 Oct 2017, Ville Syrjala <[email protected]> wrote:
> From: Ville Syrjälä <[email protected]>
>
> Untangle intel_enable_ddi() by splitting it into DP and HDMI specific
> variants.
>
> v2: Keep using intel_ddi_get_encoder_port() for now
>
> Signed-off-by: Ville Syrjälä <[email protected]>
> ---
> drivers/gpu/drm/i915/intel_ddi.c | 86
> +++++++++++++++++++++++-----------------
> 1 file changed, 49 insertions(+), 37 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> b/drivers/gpu/drm/i915/intel_ddi.c
> index 49cf8d9d2bc1..18bf06c7e43f 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2369,45 +2369,57 @@ void intel_ddi_fdi_post_disable(struct intel_encoder
> *encoder,
> I915_WRITE(FDI_RX_CTL(PIPE_A), val);
> }
>
> -static void intel_enable_ddi(struct intel_encoder *intel_encoder,
> - const struct intel_crtc_state *pipe_config,
> +static void intel_enable_ddi_dp(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> +{
> + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> + struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> + enum port port = intel_ddi_get_encoder_port(encoder);
> +
> + if (port == PORT_A && INTEL_GEN(dev_priv) < 9)
> + intel_dp_stop_link_train(intel_dp);
> +
> + intel_edp_backlight_on(crtc_state, conn_state);
> + intel_psr_enable(intel_dp, crtc_state);
This is broken without edp check.
BR,
Jani.
> + intel_edp_drrs_enable(intel_dp, crtc_state);
> +
> + if (crtc_state->has_audio)
> + intel_audio_codec_enable(encoder, crtc_state, conn_state);
> +}
> +
> +static void intel_enable_ddi_hdmi(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> +{
> + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> + struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base);
> + enum port port = intel_ddi_get_encoder_port(encoder);
> +
> + intel_hdmi_handle_sink_scrambling(encoder,
> + conn_state->connector,
> +
> crtc_state->hdmi_high_tmds_clock_ratio,
> + crtc_state->hdmi_scrambling);
> +
> + /* In HDMI/DVI mode, the port width, and swing/emphasis values
> + * are ignored so nothing special needs to be done besides
> + * enabling the port.
> + */
> + I915_WRITE(DDI_BUF_CTL(port),
> + dig_port->saved_port_bits | DDI_BUF_CTL_ENABLE);
> +
> + if (crtc_state->has_audio)
> + intel_audio_codec_enable(encoder, crtc_state, conn_state);
> +}
> +
> +static void intel_enable_ddi(struct intel_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> const struct drm_connector_state *conn_state)
> {
> - struct drm_encoder *encoder = &intel_encoder->base;
> - struct drm_i915_private *dev_priv = to_i915(encoder->dev);
> - enum port port = intel_ddi_get_encoder_port(intel_encoder);
> - int type = intel_encoder->type;
> -
> - if (type == INTEL_OUTPUT_HDMI) {
> - struct intel_digital_port *intel_dig_port =
> - enc_to_dig_port(encoder);
> - bool clock_ratio = pipe_config->hdmi_high_tmds_clock_ratio;
> - bool scrambling = pipe_config->hdmi_scrambling;
> -
> - intel_hdmi_handle_sink_scrambling(intel_encoder,
> - conn_state->connector,
> - clock_ratio, scrambling);
> -
> - /* In HDMI/DVI mode, the port width, and swing/emphasis values
> - * are ignored so nothing special needs to be done besides
> - * enabling the port.
> - */
> - I915_WRITE(DDI_BUF_CTL(port),
> - intel_dig_port->saved_port_bits |
> - DDI_BUF_CTL_ENABLE);
> - } else if (type == INTEL_OUTPUT_EDP) {
> - struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
> -
> - if (port == PORT_A && INTEL_GEN(dev_priv) < 9)
> - intel_dp_stop_link_train(intel_dp);
> -
> - intel_edp_backlight_on(pipe_config, conn_state);
> - intel_psr_enable(intel_dp, pipe_config);
> - intel_edp_drrs_enable(intel_dp, pipe_config);
> - }
> -
> - if (pipe_config->has_audio)
> - intel_audio_codec_enable(intel_encoder, pipe_config,
> conn_state);
> + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI))
> + intel_enable_ddi_hdmi(encoder, crtc_state, conn_state);
> + else
> + intel_enable_ddi_dp(encoder, crtc_state, conn_state);
> }
>
> static void intel_disable_ddi_dp(struct intel_encoder *encoder,
--
Jani Nikula, Intel Open Source Technology Center
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