From 3cf460bd683df848c3df90b9bd6c28bc86acea8a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 15 Oct 2021 16:39:02 +0300 Subject: [PATCH] drm/i915/hdmi: Split intel_hdmi_bpc_possible() to source vs. sink pair MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit intel_hdmi_bpc_possible() is used by the DP code as well where the native HDMI source limits do not apply. So let's split this into a pair of functions: one for the source vs. one for the sink. This is basically reverting some of commit 41828125acd6 ("drm/i915: Move platform checks into intel_hdmi_bpc_possible()") slightly, but in a nicer form. I guess I forgot at the time that the DP side uses this too. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20211015133921.4609-2-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_hdmi.c | 38 +++++++++++++++++++++---------- 1 file changed, 26 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index d2e61f6c..d719649 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -1873,18 +1873,29 @@ static int intel_hdmi_port_clock(int clock, int bpc) return clock * bpc / 8; } -static bool intel_hdmi_bpc_possible(struct drm_connector *connector, - int bpc, bool has_hdmi_sink, bool ycbcr420_output) +static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bpc) +{ + switch (bpc) { + case 12: + return !HAS_GMCH(i915); + case 10: + return DISPLAY_VER(i915) >= 11; + case 8: + return true; + default: + MISSING_CASE(bpc); + return false; + } +} + +static bool intel_hdmi_sink_bpc_possible(struct drm_connector *connector, + int bpc, bool has_hdmi_sink, bool ycbcr420_output) { - struct drm_i915_private *i915 = to_i915(connector->dev); const struct drm_display_info *info = &connector->display_info; const struct drm_hdmi_info *hdmi = &info->hdmi; switch (bpc) { case 12: - if (HAS_GMCH(i915)) - return false; - if (!has_hdmi_sink) return false; @@ -1893,9 +1904,6 @@ static bool intel_hdmi_bpc_possible(struct drm_connector *connector, else return info->edid_hdmi_dc_modes & DRM_EDID_HDMI_DC_36; case 10: - if (DISPLAY_VER(i915) < 11) - return false; - if (!has_hdmi_sink) return false; @@ -1915,6 +1923,7 @@ static enum drm_mode_status intel_hdmi_mode_clock_valid(struct drm_connector *connector, int clock, bool has_hdmi_sink, bool ycbcr420_output) { + struct drm_i915_private *i915 = to_i915(connector->dev); struct intel_hdmi *hdmi = intel_attached_hdmi(to_intel_connector(connector)); enum drm_mode_status status; @@ -1927,13 +1936,15 @@ intel_hdmi_mode_clock_valid(struct drm_connector *connector, int clock, /* if we can't do 8bpc we may still be able to do 12bpc */ if (status != MODE_OK && - intel_hdmi_bpc_possible(connector, 12, has_hdmi_sink, ycbcr420_output)) + intel_hdmi_source_bpc_possible(i915, 12) && + intel_hdmi_sink_bpc_possible(connector, 12, has_hdmi_sink, ycbcr420_output)) 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 && - intel_hdmi_bpc_possible(connector, 10, has_hdmi_sink, ycbcr420_output)) + intel_hdmi_source_bpc_possible(i915, 10) && + intel_hdmi_sink_bpc_possible(connector, 10, has_hdmi_sink, ycbcr420_output)) status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 10), true, has_hdmi_sink); @@ -1999,7 +2010,7 @@ bool intel_hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state, if (connector_state->crtc != crtc_state->uapi.crtc) continue; - if (!intel_hdmi_bpc_possible(connector, bpc, has_hdmi_sink, ycbcr420_output)) + if (!intel_hdmi_sink_bpc_possible(connector, bpc, has_hdmi_sink, ycbcr420_output)) return false; } @@ -2014,6 +2025,9 @@ static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state, const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + if (!intel_hdmi_source_bpc_possible(dev_priv, bpc)) + return false; + /* * HDMI deep color affects the clocks, so it's only possible * when not cloning with other encoder types. -- 2.7.4