On Mon, Jul 10, 2017 at 04:48:47PM +0530, Shashank Sharma wrote:
> We have an existing function to prepare AVI infoframes for HDMI,
> this patch moves that function from HDMI layer, to DDI layer, so
> that we can reuse the function for DP(LSPCON) displays too.
>
> This patch:
> - Moves the intel_hdmi_set_avi_infoframes function in ddi layer.
> - Adds code to accommodate LSPCON in the same function.
> - Links this function as AVI infoframe setup function for LSPCON.
>
> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
> Cc: Imre Deak <imre.d...@intel.com>
> Signed-off-by: Shashank Sharma <shashank.sha...@intel.com>
> ---
> drivers/gpu/drm/i915/intel_ddi.c | 89
> ++++++++++++++++++++++++++++++++++---
> drivers/gpu/drm/i915/intel_drv.h | 9 ++++
> drivers/gpu/drm/i915/intel_hdmi.c | 52 +++-------------------
> drivers/gpu/drm/i915/intel_lspcon.c | 1 +
> 4 files changed, 99 insertions(+), 52 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c
> b/drivers/gpu/drm/i915/intel_ddi.c
> index 80e96f1..f691710 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -2003,8 +2003,76 @@ static void intel_ddi_clk_select(struct intel_encoder
> *encoder,
> }
> }
>
> +void intel_ddi_set_avi_infoframe(struct drm_encoder *encoder,
> + const struct intel_crtc_state *crtc_state)
NAK. Please look at my 'move infoframe stuff into intel_dig_port' series
if you need infoframes with DP. IIRC you already reviewed part of that.
> +{
> + int ret;
> + union hdmi_infoframe frame;
> + struct drm_connector *connector;
> + struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
> + struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
> + const struct drm_display_mode *adjusted_mode =
> + &crtc_state->base.adjusted_mode;
> + enum intel_output_type type = to_intel_encoder(encoder)->type;
> + bool is_hdmi2_sink = false;
> + bool rgb_qrange_selectable = false;
> + enum hdmi_colorspace colorspace = crtc_state->ycbcr420 ?
> + HDMI_COLORSPACE_YUV420 :
> + HDMI_COLORSPACE_RGB;
> + bool rgb_qrange_limited = crtc_state->limited_color_range ?
> + HDMI_QUANTIZATION_RANGE_LIMITED :
> + HDMI_QUANTIZATION_RANGE_FULL;
> +
> + switch (type) {
> + case INTEL_OUTPUT_HDMI:
> + connector = &intel_hdmi->attached_connector->base;
> + is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
> + rgb_qrange_selectable = intel_hdmi->rgb_quant_range_selectable;
> + break;
> +
> + case INTEL_OUTPUT_DP:
> + /* We are here means its a LSPCON device, still be paranoid */
> + if (!crtc_state->lspcon_active) {
> + DRM_ERROR("No LSPCON, why am I here ?\n");
> + return;
> + }
> +
> + connector = &intel_dp->attached_connector->base;
> + is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
> + if (crtc_state->ycbcr420)
> + rgb_qrange_limited = true;
> + break;
> +
> + default:
> + DRM_ERROR("No other encoder allowed\n");
> + return;
> + }
> +
> + ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
> + adjusted_mode,
> + is_hdmi2_sink);
> + if (ret < 0) {
> + DRM_ERROR("couldn't fill AVI infoframe\n");
> + return;
> + }
> +
> + ret = drm_hdmi_avi_infoframe_set_colorspace(&frame.avi,
> + adjusted_mode,
> + colorspace);
> + if (ret < 0) {
> + DRM_ERROR("couldn't fill AVI colorspace\n");
> + return;
> + }
> +
> + drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode,
> + rgb_qrange_limited,
> + rgb_qrange_selectable);
> +
> + intel_write_infoframe(encoder, crtc_state, &frame);
> +}
> +
> static void intel_ddi_pre_enable_dp(struct intel_encoder *encoder,
> - int link_rate, uint32_t lane_count,
> + const struct intel_crtc_state *pipe_config,
> struct intel_shared_dpll *pll,
> bool link_mst)
> {
> @@ -2012,6 +2080,8 @@ static void intel_ddi_pre_enable_dp(struct
> intel_encoder *encoder,
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> enum port port = intel_ddi_get_encoder_port(encoder);
> struct intel_digital_port *dig_port = enc_to_dig_port(&encoder->base);
> + int link_rate = pipe_config->port_clock;
> + uint32_t lane_count = pipe_config->lane_count;
>
> WARN_ON(link_mst && (port == PORT_A || port == PORT_E));
>
> @@ -2030,6 +2100,14 @@ static void intel_ddi_pre_enable_dp(struct
> intel_encoder *encoder,
> intel_dp_start_link_train(intel_dp);
> if (port != PORT_A || INTEL_GEN(dev_priv) >= 9)
> intel_dp_stop_link_train(intel_dp);
> +
> + if (pipe_config->lspcon_active) {
> + struct drm_encoder *drm_encoder = &encoder->base;
> + struct intel_lspcon *lspcon = enc_to_intel_lspcon(drm_encoder);
> +
> + if (lspcon->set_infoframes)
> + lspcon->set_infoframes(&encoder->base, pipe_config);
> + }
> }
>
> static void intel_ddi_pre_enable_hdmi(struct intel_encoder *encoder,
> @@ -2072,8 +2150,7 @@ static void intel_ddi_pre_enable(struct intel_encoder
> *encoder,
>
> if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) {
> intel_ddi_pre_enable_dp(encoder,
> - pipe_config->port_clock,
> - pipe_config->lane_count,
> + pipe_config,
> pipe_config->shared_dpll,
> intel_crtc_has_type(pipe_config,
>
> INTEL_OUTPUT_DP_MST));
> @@ -2628,17 +2705,17 @@ void intel_ddi_init(struct drm_i915_private
> *dev_priv, enum port port)
> }
>
> if (init_lspcon) {
> - if (lspcon_init(intel_dig_port))
> - /* TODO: handle hdmi info frame part */
> + if (lspcon_init(intel_dig_port)) {
> DRM_DEBUG_KMS("LSPCON init success on port %c\n",
> port_name(port));
> - else
> + } else {
> /*
> * LSPCON init faied, but DP init was success, so
> * lets try to drive as DP++ port.
> */
> DRM_ERROR("LSPCON init failed on port %c\n",
> port_name(port));
> + }
> }
>
> return;
> diff --git a/drivers/gpu/drm/i915/intel_drv.h
> b/drivers/gpu/drm/i915/intel_drv.h
> index 40d56f2..fad9a53 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1075,6 +1075,10 @@ struct intel_lspcon {
> bool active;
> enum drm_lspcon_mode mode;
> enum lspcon_vendor vendor;
> +
> + /* AVI IF setup function for LSPCON */
> + void (*set_infoframes)(struct drm_encoder *encoder,
> + const struct intel_crtc_state *crtc_state);
> };
>
> struct intel_digital_port {
> @@ -1320,6 +1324,8 @@ u8 intel_ddi_dp_voltage_max(struct intel_encoder
> *encoder);
>
> unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
> int plane, unsigned int height);
> +void intel_ddi_set_avi_infoframe(struct drm_encoder *encoder,
> + const struct intel_crtc_state *crtc_state);
>
> /* intel_audio.c */
> void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
> @@ -1690,6 +1696,9 @@ void intel_hdmi_handle_sink_scrambling(struct
> intel_encoder *intel_encoder,
> struct drm_connector *connector,
> bool high_tmds_clock_ratio,
> bool scrambling);
> +void intel_write_infoframe(struct drm_encoder *encoder,
> + const struct intel_crtc_state *crtc_state,
> + union hdmi_infoframe *frame);
> void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool
> enable);
> bool intel_hdmi_ycbcr420_config(struct drm_connector *connector,
> struct intel_crtc_state *config,
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c
> b/drivers/gpu/drm/i915/intel_hdmi.c
> index a08ab99..7cab86a 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -430,7 +430,7 @@ static bool hsw_infoframe_enabled(struct drm_encoder
> *encoder,
> * trick them by giving an offset into the buffer and moving back the header
> * bytes by one.
> */
> -static void intel_write_infoframe(struct drm_encoder *encoder,
> +void intel_write_infoframe(struct drm_encoder *encoder,
> const struct intel_crtc_state *crtc_state,
> union hdmi_infoframe *frame)
> {
> @@ -453,46 +453,6 @@ static void intel_write_infoframe(struct drm_encoder
> *encoder,
> intel_hdmi->write_infoframe(encoder, crtc_state, frame->any.type,
> buffer, len);
> }
>
> -static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
> - const struct intel_crtc_state
> *crtc_state)
> -{
> - struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
> - const struct drm_display_mode *adjusted_mode =
> - &crtc_state->base.adjusted_mode;
> - struct drm_connector *connector = &intel_hdmi->attached_connector->base;
> - bool is_hdmi2_sink = connector->display_info.hdmi.scdc.supported;
> - enum hdmi_colorspace colorspace = HDMI_COLORSPACE_RGB;
> - union hdmi_infoframe frame;
> - int ret;
> -
> - ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
> - adjusted_mode,
> - is_hdmi2_sink);
> - if (ret < 0) {
> - DRM_ERROR("couldn't fill AVI infoframe\n");
> - return;
> - }
> -
> - if (crtc_state->ycbcr420)
> - colorspace = HDMI_COLORSPACE_YUV420;
> -
> - ret = drm_hdmi_avi_infoframe_set_colorspace(&frame.avi,
> - adjusted_mode,
> - colorspace);
> - if (ret < 0) {
> - DRM_ERROR("couldn't fill AVI colorspace\n");
> - return;
> - }
> -
> - drm_hdmi_avi_infoframe_quant_range(&frame.avi, adjusted_mode,
> - crtc_state->limited_color_range ?
> - HDMI_QUANTIZATION_RANGE_LIMITED :
> - HDMI_QUANTIZATION_RANGE_FULL,
> -
> intel_hdmi->rgb_quant_range_selectable);
> -
> - intel_write_infoframe(encoder, crtc_state, &frame);
> -}
> -
> static void intel_hdmi_set_spd_infoframe(struct drm_encoder *encoder,
> const struct intel_crtc_state
> *crtc_state)
> {
> @@ -582,7 +542,7 @@ static void g4x_set_infoframes(struct drm_encoder
> *encoder,
> I915_WRITE(reg, val);
> POSTING_READ(reg);
>
> - intel_hdmi_set_avi_infoframe(encoder, crtc_state);
> + intel_ddi_set_avi_infoframe(encoder, crtc_state);
> intel_hdmi_set_spd_infoframe(encoder, crtc_state);
> intel_hdmi_set_hdmi_infoframe(encoder, crtc_state);
> }
> @@ -723,7 +683,7 @@ static void ibx_set_infoframes(struct drm_encoder
> *encoder,
> I915_WRITE(reg, val);
> POSTING_READ(reg);
>
> - intel_hdmi_set_avi_infoframe(encoder, crtc_state);
> + intel_ddi_set_avi_infoframe(encoder, crtc_state);
> intel_hdmi_set_spd_infoframe(encoder, crtc_state);
> intel_hdmi_set_hdmi_infoframe(encoder, crtc_state);
> }
> @@ -766,7 +726,7 @@ static void cpt_set_infoframes(struct drm_encoder
> *encoder,
> I915_WRITE(reg, val);
> POSTING_READ(reg);
>
> - intel_hdmi_set_avi_infoframe(encoder, crtc_state);
> + intel_ddi_set_avi_infoframe(encoder, crtc_state);
> intel_hdmi_set_spd_infoframe(encoder, crtc_state);
> intel_hdmi_set_hdmi_infoframe(encoder, crtc_state);
> }
> @@ -819,7 +779,7 @@ static void vlv_set_infoframes(struct drm_encoder
> *encoder,
> I915_WRITE(reg, val);
> POSTING_READ(reg);
>
> - intel_hdmi_set_avi_infoframe(encoder, crtc_state);
> + intel_ddi_set_avi_infoframe(encoder, crtc_state);
> intel_hdmi_set_spd_infoframe(encoder, crtc_state);
> intel_hdmi_set_hdmi_infoframe(encoder, crtc_state);
> }
> @@ -852,7 +812,7 @@ static void hsw_set_infoframes(struct drm_encoder
> *encoder,
> I915_WRITE(reg, val);
> POSTING_READ(reg);
>
> - intel_hdmi_set_avi_infoframe(encoder, crtc_state);
> + intel_ddi_set_avi_infoframe(encoder, crtc_state);
> intel_hdmi_set_spd_infoframe(encoder, crtc_state);
> intel_hdmi_set_hdmi_infoframe(encoder, crtc_state);
> }
> diff --git a/drivers/gpu/drm/i915/intel_lspcon.c
> b/drivers/gpu/drm/i915/intel_lspcon.c
> index f611b6d..53ddd39 100644
> --- a/drivers/gpu/drm/i915/intel_lspcon.c
> +++ b/drivers/gpu/drm/i915/intel_lspcon.c
> @@ -281,6 +281,7 @@ bool lspcon_init(struct intel_digital_port
> *intel_dig_port)
> }
>
> connector->ycbcr_420_allowed = true;
> + lspcon->set_infoframes = intel_ddi_set_avi_infoframe;
> drm_dp_read_desc(&dp->aux, &dp->desc, drm_dp_is_branch(dp->dpcd));
>
> DRM_DEBUG_KMS("Success: LSPCON init\n");
> --
> 2.7.4
--
Ville Syrjälä
Intel OTC
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