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drm/i915: Use intel_hdmi_port_clock() more

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Replace the hand rolled intel_hdmi_port_clock() stuff
with the real thing.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210204020846.2094-2-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
This commit is contained in:
Ville Syrjälä 2021-02-04 04:08:46 +02:00
parent 6499f925dd
commit 3c4442aa22
1 changed files with 14 additions and 13 deletions
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27
drivers/gpu/drm/i915/display/intel_hdmi.c
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@ -2233,6 +2233,16 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi,
return MODE_OK;
}
static int intel_hdmi_port_clock(int clock, int bpc)
{
/*
* Need to adjust the port link by:
* 1.5x for 12bpc
* 1.25x for 10bpc
*/
return clock * bpc / 8;
}
static enum drm_mode_status
intel_hdmi_mode_valid(struct drm_connector *connector,
struct drm_display_mode *mode)
@ -2264,17 +2274,18 @@ intel_hdmi_mode_valid(struct drm_connector *connector,
clock /= 2;
/* check if we can do 8bpc */
status = hdmi_port_clock_valid(hdmi, clock, true, has_hdmi_sink);
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, clock * 3 / 2,
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_GEN(dev_priv) >= 11)
status = hdmi_port_clock_valid(hdmi, clock * 5 / 4,
status = hdmi_port_clock_valid(hdmi, intel_hdmi_port_clock(clock, 10),
true, has_hdmi_sink);
}
if (status != MODE_OK)
@ -2382,16 +2393,6 @@ intel_hdmi_ycbcr420_config(struct intel_crtc_state *crtc_state,
return intel_pch_panel_fitting(crtc_state, conn_state);
}
static int intel_hdmi_port_clock(int clock, int bpc)
{
/*
* Need to adjust the port link by:
* 1.5x for 12bpc
* 1.25x for 10bpc
*/
return clock * bpc / 8;
}
static int intel_hdmi_compute_bpc(struct intel_encoder *encoder,
struct intel_crtc_state *crtc_state,
int clock)