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drm/i915/sdvo: Precompute HDMI infoframes 

As with regular HDMI encoders, let's precompute the infoframes
(actually just AVI infoframe for the time being) with SDVO HDMI
encoders.

v2: Drop the WARN_ON() from drm_hdmi_avi_infoframe_from_display_mode()
    return since that could genuinely fail due to user asking
    for incompatible aspect ratio
v3: .compute_config() now returns int

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190225174106.2163-7-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2019-02-25 19:41:03 +02:00
parent f2a10d61ca
commit 769be632d4
1 changed files with 45 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/gpu/drm/i915/intel_sdvo.c
View File

@ -978,34 +978,57 @@ static bool intel_sdvo_write_infoframe(struct intel_sdvo *intel_sdvo,
&tx_rate, 1);
}
static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
const struct intel_crtc_state *pipe_config,
const struct drm_connector_state *conn_state)
static bool intel_sdvo_compute_avi_infoframe(struct intel_sdvo *intel_sdvo,
struct intel_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
{
struct hdmi_avi_infoframe *frame = &crtc_state->infoframes.avi.avi;
const struct drm_display_mode *adjusted_mode =
&pipe_config->base.adjusted_mode;
u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
union hdmi_infoframe frame;
&crtc_state->base.adjusted_mode;
int ret;
ssize_t len;
ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
if (!crtc_state->has_hdmi_sink)
return true;
crtc_state->infoframes.enable |=
intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI);
ret = drm_hdmi_avi_infoframe_from_display_mode(frame,
conn_state->connector,
adjusted_mode);
if (ret < 0) {
DRM_ERROR("couldn't fill AVI infoframe\n");
if (ret)
return false;
}
drm_hdmi_avi_infoframe_quant_range(&frame.avi,
drm_hdmi_avi_infoframe_quant_range(frame,
conn_state->connector,
adjusted_mode,
pipe_config->limited_color_range ?
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL);
len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
if (len < 0)
ret = hdmi_avi_infoframe_check(frame);
if (WARN_ON(ret))
return false;
return true;
}
static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
const struct intel_crtc_state *crtc_state)
{
u8 sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
const union hdmi_infoframe *frame = &crtc_state->infoframes.avi;
ssize_t len;
if ((crtc_state->infoframes.enable &
intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_AVI)) == 0)
return true;
if (WARN_ON(frame->any.type != HDMI_INFOFRAME_TYPE_AVI))
return false;
len = hdmi_infoframe_pack_only(frame, sdvo_data, sizeof(sdvo_data));
if (WARN_ON(len < 0))
return false;
return intel_sdvo_write_infoframe(intel_sdvo, SDVO_HBUF_INDEX_AVI_IF,
@ -1193,6 +1216,12 @@ static int intel_sdvo_compute_config(struct intel_encoder *encoder,
if (intel_sdvo_connector->is_hdmi)
adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio;
if (!intel_sdvo_compute_avi_infoframe(intel_sdvo,
pipe_config, conn_state)) {
DRM_DEBUG_KMS("bad AVI infoframe\n");
return -EINVAL;
}
return 0;
}
@ -1315,8 +1344,7 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_HDMI);
intel_sdvo_set_colorimetry(intel_sdvo,
SDVO_COLORIMETRY_RGB256);
intel_sdvo_set_avi_infoframe(intel_sdvo,
crtc_state, conn_state);
intel_sdvo_set_avi_infoframe(intel_sdvo, crtc_state);
} else
intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);