From 2cc7aa29143b1276db3e87d2a2d50d3625b77d60 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 29 Apr 2013 13:02:52 +0300 Subject: [PATCH] drm/i915: untie opregion init and asle irq/pipestat enable Stop calling intel_opregion_enable_asle() and consequently intel_enable_asle() on opregion init. It should not be necessary for these reasons: 1) On PCH split platforms, it only enables GSE interrupt, which is enabled in irq postinstall anyway. Moreover, the irq enable uses the wrong bit on IVB+. 2) On gen 2, it would enable a reserved pipestat bit. If there were gen 2 systems with opregion asle support, that is. And the gen 2 irq handler won't handle it anyway. 3) On gen 3-4, the irq postinstall will call intel_opregion_enable_asle() to enable the pipestat. In short, move the asle irq/pipestat enable responsibility to irq postinstall, which already happens to be in place. This should not cause any functional changes, but only do the one line change here for easier bisectability, just in case, and leave all the cleanups this allows to followup patches. Signed-off-by: Jani Nikula Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_opregion.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 5b6d202ec76d..4e697993a3f2 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -427,8 +427,6 @@ void intel_opregion_init(struct drm_device *dev) } if (opregion->asle) { - intel_opregion_enable_asle(dev); - iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche); iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy); } -- 2.34.1