UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: Round TMDS clock to nearest 

Use round-to-nearest behavour when calculating the TMDS clock.
Matches what we do for most other clock related things.

Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-18-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2022-09-07 12:10:57 +03:00
parent c46af5621a
commit f2c9df1010
2 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -4505,7 +4505,8 @@ int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
dotclock = intel_dotclock_calculate(pipe_config->port_clock,
&pipe_config->dp_m_n);
else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
dotclock = DIV_ROUND_CLOSEST(pipe_config->port_clock * 24,
pipe_config->pipe_bpp);
else
dotclock = pipe_config->port_clock;

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

@ -1892,7 +1892,7 @@ int intel_hdmi_tmds_clock(int clock, int bpc, bool ycbcr420_output)
* 1.5x for 12bpc
* 1.25x for 10bpc
*/
return clock * bpc / 8;
return DIV_ROUND_CLOSEST(clock * bpc, 8);
}
static bool intel_hdmi_source_bpc_possible(struct drm_i915_private *i915, int bpc)