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drm/i915/dp: Reuse intel_hdmi_tmds_clock() 

Reuse intel_hdmi_tmds_clock() for DP->HDMI TMDS clock calculations.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211015133921.4609-9-ville.syrjala@linux.intel.com
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
This commit is contained in:
Ville Syrjälä 2021-10-15 16:39:09 +03:00
parent 5d488786a3
commit 0c63fd3d96
3 changed files with 7 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -886,9 +886,8 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
return MODE_CLOCK_HIGH;
/* Assume 8bpc for the DP++/HDMI/DVI TMDS clock check */
tmds_clock = target_clock;
if (drm_mode_is_420_only(info, mode))
tmds_clock /= 2;
tmds_clock = intel_hdmi_tmds_clock(target_clock, 8,
drm_mode_is_420_only(info, mode));
if (intel_dp->dfp.min_tmds_clock &&
tmds_clock < intel_dp->dfp.min_tmds_clock)
@ -1139,21 +1138,12 @@ static bool intel_dp_hdmi_ycbcr420(struct intel_dp *intel_dp,
intel_dp->dfp.ycbcr_444_to_420);
}
static int intel_dp_hdmi_tmds_clock(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state, int bpc)
{
int clock = crtc_state->hw.adjusted_mode.crtc_clock * bpc / 8;
if (intel_dp_hdmi_ycbcr420(intel_dp, crtc_state))
clock /= 2;
return clock;
}
static bool intel_dp_hdmi_tmds_clock_valid(struct intel_dp *intel_dp,
const struct intel_crtc_state *crtc_state, int bpc)
{
int tmds_clock = intel_dp_hdmi_tmds_clock(intel_dp, crtc_state, bpc);
int clock = crtc_state->hw.adjusted_mode.crtc_clock;
int tmds_clock = intel_hdmi_tmds_clock(clock, bpc,
intel_dp_hdmi_ycbcr420(intel_dp, crtc_state));
if (intel_dp->dfp.min_tmds_clock &&
tmds_clock < intel_dp->dfp.min_tmds_clock)

2
drivers/gpu/drm/i915/display/intel_hdmi.c
View File

@ -1869,7 +1869,7 @@ hdmi_port_clock_valid(struct intel_hdmi *hdmi,
return MODE_OK;
}
static int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output)
int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output)
{
/* YCBCR420 TMDS rate requirement is half the pixel clock */
if (ycbcr420_output)

1
drivers/gpu/drm/i915/display/intel_hdmi.h
View File

@ -46,6 +46,7 @@ bool intel_hdmi_limited_color_range(const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state);
bool intel_hdmi_bpc_possible(const struct intel_crtc_state *crtc_state,
int bpc, bool has_hdmi_sink, bool ycbcr420_output);
int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output);
int intel_hdmi_dsc_get_bpp(int src_fractional_bpp, int slice_width,
int num_slices, int output_format, bool hdmi_all_bpp,
int hdmi_max_chunk_bytes);