From 4d8a62eac3caad710ef030aab25248d56693a8f1 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Fri, 3 May 2013 11:49:51 +0200 Subject: [PATCH] drm/i915: fix up adjusted_mode tracking for interlaced modes With the hw state readout&check code it's important that the values we keep around are the canonical ones. Unfortunately when adding the pipe timings readout support I've missed that the write side adjusts the timings in the pipe config. Fix this up and so prevent the unsightly WARN noise in dmesg. This regression has been introduced in commit 1bd1bd806037af04dd1d7bdd39b2b04090c10d2c Author: Daniel Vetter Date: Mon Apr 29 21:56:12 2013 +0200 drm/i915: hw state readout support for pipe timings Reported-by: Paulo Zanoni Cc: Mika Kuoppala Reviewed-by: Paulo Zanoni Tested-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index de8be75..3a691a1 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4675,12 +4675,17 @@ static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, struct drm_i915_private *dev_priv = dev->dev_private; enum pipe pipe = intel_crtc->pipe; enum transcoder cpu_transcoder = intel_crtc->config.cpu_transcoder; - uint32_t vsyncshift; + uint32_t vsyncshift, crtc_vtotal, crtc_vblank_end; + + /* We need to be careful not to changed the adjusted mode, for otherwise + * the hw state checker will get angry at the mismatch. */ + crtc_vtotal = adjusted_mode->crtc_vtotal; + crtc_vblank_end = adjusted_mode->crtc_vblank_end; if (!IS_GEN2(dev) && adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { /* the chip adds 2 halflines automatically */ - adjusted_mode->crtc_vtotal -= 1; - adjusted_mode->crtc_vblank_end -= 1; + crtc_vtotal -= 1; + crtc_vblank_end -= 1; vsyncshift = adjusted_mode->crtc_hsync_start - adjusted_mode->crtc_htotal / 2; } else { @@ -4702,10 +4707,10 @@ static void intel_set_pipe_timings(struct intel_crtc *intel_crtc, I915_WRITE(VTOTAL(cpu_transcoder), (adjusted_mode->crtc_vdisplay - 1) | - ((adjusted_mode->crtc_vtotal - 1) << 16)); + ((crtc_vtotal - 1) << 16)); I915_WRITE(VBLANK(cpu_transcoder), (adjusted_mode->crtc_vblank_start - 1) | - ((adjusted_mode->crtc_vblank_end - 1) << 16)); + ((crtc_vblank_end - 1) << 16)); I915_WRITE(VSYNC(cpu_transcoder), (adjusted_mode->crtc_vsync_start - 1) | ((adjusted_mode->crtc_vsync_end - 1) << 16)); -- 2.7.4