From: Ville Syrjälä Date: Wed, 7 Sep 2022 09:10:57 +0000 (+0300) Subject: drm/i915: Round TMDS clock to nearest X-Git-Tag: block-6.1-2022-13-10~35^2~12^2~27 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=f2c9df101095bfef7682caec8a5fa7d4f3b29182;p=linux-block.git 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 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-18-ville.syrjala@linux.intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index c57b5b1d6940..b0261d0e5228 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -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; 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)