From: Chris Wilson Date: Mon, 9 Aug 2010 16:21:44 +0000 (+0100) Subject: drm/i915/dp: Boost timeout for enabling transcoder to 100ms X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0ad6ef2c587dea59212c4e2ab3ec3b0067500a2a;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/i915/dp: Boost timeout for enabling transcoder to 100ms Adam Hill reported that his Arrandale system required a much longer, up to 200x500us, wait for the panel to initialise or else modesetting would fail. References: https://bugs.freedesktop.org/show_bug.cgi?id=29141 Signed-off-by: Chris Wilson Reported-and-tested-by: Adam Hill --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index cbb509383089..83c85450608e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2069,7 +2069,7 @@ static void ironlake_crtc_dpms(struct drm_crtc *crtc, int mode) I915_WRITE(transconf_reg, temp | TRANS_ENABLE); I915_READ(transconf_reg); - if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 10, 0)) + if (wait_for(I915_READ(transconf_reg) & TRANS_STATE_ENABLE, 100, 1)) DRM_ERROR("failed to enable transcoder\n"); }