From 9558d15dc2df1bf699b92836f815a5e70c76f17a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Fri, 13 May 2016 23:41:20 +0300 Subject: [PATCH] drm/i915: Fix BXT min_pixclk after state readout MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit 4e5ca60fd35a ("drm/i915: Use ilk_max_pixel_rate() for BXT cdclk calculation") tried to change BXT to use ilk_max_pixel_rate() to compute the pipe pixel rate. I failed to notice that there was another place in the state readout code that needs the same treatment. So let's change that one too. Should probably just change things to always compuyte the pipe pixel rates, instead of just doing on platforms that can change cdclk dynamically. But for now let's just move BXT fully over to the side that uses ilk_pipe_pixel_rate(). Cc: Jani Nikula Fixes: 4e5ca60fd35a ("drm/i915: Use ilk_max_pixel_rate() for BXT cdclk calculation") Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1463172100-24715-2-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Imre Deak --- drivers/gpu/drm/i915/intel_display.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 60ffbfd..9e7bc1d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15128,18 +15128,16 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev) if (crtc_state->base.active) { dev_priv->active_crtcs |= 1 << crtc->pipe; - if (IS_BROADWELL(dev_priv)) { + if (IS_BROXTON(dev_priv) || IS_BROADWELL(dev_priv)) pixclk = ilk_pipe_pixel_rate(crtc_state); - - /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ - if (crtc_state->ips_enabled) - pixclk = DIV_ROUND_UP(pixclk * 100, 95); - } else if (IS_VALLEYVIEW(dev_priv) || - IS_CHERRYVIEW(dev_priv) || - IS_BROXTON(dev_priv)) + else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) pixclk = crtc_state->base.adjusted_mode.crtc_clock; else WARN_ON(dev_priv->display.modeset_calc_cdclk); + + /* pixel rate mustn't exceed 95% of cdclk with IPS on BDW */ + if (IS_BROADWELL(dev_priv) && crtc_state->ips_enabled) + pixclk = DIV_ROUND_UP(pixclk * 100, 95); } dev_priv->min_pixclk[crtc->pipe] = pixclk; -- 2.7.4