From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> 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@xxxxxxxxx> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_display.c | 3 ++- drivers/gpu/drm/i915/display/intel_hdmi.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 1b7d26b9e985..407afd5888ed 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -4504,7 +4504,8 @@ 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; diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 09f85afeb2d4..7816b2a33fee 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -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) -- 2.35.1
