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drm/i915: Use drm_hdmi_avi_infoframe_quant_range() for SDVO HDMI as well

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Fill out the AVI infoframe quantization range bits using
drm_hdmi_avi_infoframe_quant_range() for SDVO HDMI encoder as well.

This changes the behaviour slightly as
drm_hdmi_avi_infoframe_quant_range() will set a non-zero Q bit
even when QS==0 iff the Q bit matched the default quantization
range for the given mode. This matches the recommendation in
HDMI 2.0 and is allowed even before that.

v2: Pimp commit msg (DK)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-2-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2019-01-08 19:28:26 +02:00
parent 13d0add333
commit c3735f5c1f
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/i915/intel_sdvo.c
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@ -984,6 +984,8 @@ 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)
{
const struct drm_display_mode *adjusted_mode =
&pipe_config->base.adjusted_mode;
uint8_t sdvo_data[HDMI_INFOFRAME_SIZE(AVI)];
union hdmi_infoframe frame;
int ret;
@ -991,20 +993,19 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
ret = drm_hdmi_avi_infoframe_from_display_mode(&frame.avi,
conn_state->connector,
&pipe_config->base.adjusted_mode);
adjusted_mode);
if (ret < 0) {
DRM_ERROR("couldn't fill AVI infoframe\n");
return false;
}
if (intel_sdvo->rgb_quant_range_selectable) {
if (pipe_config->limited_color_range)
frame.avi.quantization_range =
HDMI_QUANTIZATION_RANGE_LIMITED;
else
frame.avi.quantization_range =
HDMI_QUANTIZATION_RANGE_FULL;
}
drm_hdmi_avi_infoframe_quant_range(&frame.avi,
conn_state->connector,
adjusted_mode,
pipe_config->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_sdvo->rgb_quant_range_selectable);
len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
if (len < 0)