diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_hdmi.c | 42 |
1 files changed, 27 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 27bfa0bba77e..f26431a4c73d 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1864,6 +1864,32 @@ static int intel_hdmi_port_clock(int clock, int bpc) } static enum drm_mode_status +intel_hdmi_mode_clock_valid(struct intel_hdmi *hdmi, int clock, bool has_hdmi_sink) +{ + struct drm_device *dev = intel_hdmi_to_dev(hdmi); + struct drm_i915_private *dev_priv = to_i915(dev); + enum drm_mode_status status; + + /* check if we can do 8bpc */ + status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 8), + true, has_hdmi_sink); + + if (has_hdmi_sink) { + /* if we can't do 8bpc we may still be able to do 12bpc */ + if (status != MODE_OK && !HAS_GMCH(dev_priv)) + status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 12), + true, has_hdmi_sink); + + /* if we can't do 8,12bpc we may still be able to do 10bpc */ + if (status != MODE_OK && DISPLAY_VER(dev_priv) >= 11) + status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 10), + true, has_hdmi_sink); + } + + return status; +} + +static enum drm_mode_status intel_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { @@ -1893,21 +1919,7 @@ intel_hdmi_mode_valid(struct drm_connector *connector, if (drm_mode_is_420_only(&connector->display_info, mode)) clock /= 2; - /* check if we can do 8bpc */ - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 8), - true, has_hdmi_sink); - - if (has_hdmi_sink) { - /* if we can't do 8bpc we may still be able to do 12bpc */ - if (status != MODE_OK && !HAS_GMCH(dev_priv)) - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 12), - true, has_hdmi_sink); - - /* if we can't do 8,12bpc we may still be able to do 10bpc */ - if (status != MODE_OK && DISPLAY_VER(dev_priv) >= 11) - status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 10), - true, has_hdmi_sink); - } + status = intel_hdmi_mode_clock_valid(hdmi, clock, has_hdmi_sink); if (status != MODE_OK) return status; |