From 284d5df5716aad3c729d1ac4a2a93b8d0ac33ecc Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 14 Apr 2012 17:41:59 +0100 Subject: [PATCH] drm/i915: Silence the change of LVDS sync polarity When the change to start adjusting the sync polarity of the LVDS mode was introduced in commit aa9b500ddf1a6318e7cf8b1754696edddae86db9 Author: Bryan Freed Date: Wed Jan 12 13:43:19 2011 -0800 drm/i915: Honour LVDS sync polarity from EDID we made the change in state verbose so that we could quickly spot any regressions that made have also been introduced with it. As there do not appear to have been any, remove the extra logging. v2: Remove the no longer used variables. Signed-off-by: Chris Wilson Acked-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 37 ++++++---------------------- 1 file changed, 7 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index aa647c654f85..4c844c68ec80 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3416,7 +3416,7 @@ static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, struct drm_i915_private *dev_priv = dev->dev_private; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); int pipe = intel_crtc->pipe; - u32 temp, lvds_sync = 0; + u32 temp; temp = I915_READ(LVDS); temp |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; @@ -3446,22 +3446,11 @@ static void intel_update_lvds(struct drm_crtc *crtc, intel_clock_t *clock, else temp &= ~LVDS_ENABLE_DITHER; } + temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) - lvds_sync |= LVDS_HSYNC_POLARITY; + temp |= LVDS_HSYNC_POLARITY; if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) - lvds_sync |= LVDS_VSYNC_POLARITY; - if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) - != lvds_sync) { - char flags[2] = "-+"; - DRM_INFO("Changing LVDS panel from " - "(%chsync, %cvsync) to (%chsync, %cvsync)\n", - flags[!(temp & LVDS_HSYNC_POLARITY)], - flags[!(temp & LVDS_VSYNC_POLARITY)], - flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], - flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); - temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); - temp |= lvds_sync; - } + temp |= LVDS_VSYNC_POLARITY; I915_WRITE(LVDS, temp); } @@ -4012,7 +4001,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, int ret; struct fdi_m_n m_n = {0}; u32 temp; - u32 lvds_sync = 0; int target_clock, pixel_multiplier, lane, link_bw, factor; unsigned int pipe_bpp; bool dither; @@ -4305,22 +4293,11 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc, * appropriately here, but we need to look more thoroughly into how * panels behave in the two modes. */ + temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) - lvds_sync |= LVDS_HSYNC_POLARITY; + temp |= LVDS_HSYNC_POLARITY; if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) - lvds_sync |= LVDS_VSYNC_POLARITY; - if ((temp & (LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY)) - != lvds_sync) { - char flags[2] = "-+"; - DRM_INFO("Changing LVDS panel from " - "(%chsync, %cvsync) to (%chsync, %cvsync)\n", - flags[!(temp & LVDS_HSYNC_POLARITY)], - flags[!(temp & LVDS_VSYNC_POLARITY)], - flags[!(lvds_sync & LVDS_HSYNC_POLARITY)], - flags[!(lvds_sync & LVDS_VSYNC_POLARITY)]); - temp &= ~(LVDS_HSYNC_POLARITY | LVDS_VSYNC_POLARITY); - temp |= lvds_sync; - } + temp |= LVDS_VSYNC_POLARITY; I915_WRITE(PCH_LVDS, temp); }