drm/i915: Only call udelay() when waiting for clocks to stabilise (8c4223be) · Commits · e / devices / android_kernel_teracube_emerald

drivers/gpu/drm/i915/intel_display.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -1989,8 +1989,8 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
		if ((temp & DPLL_VCO_ENABLE) == 0) {
		I915_WRITE(pch_dpll_reg, temp \| DPLL_VCO_ENABLE);
		I915_READ(pch_dpll_reg);
		}
		udelay(200);
		}

		if (HAS_PCH_CPT(dev)) {
		/* Be sure PCH DPLL SEL is set */
		@@ -2136,8 +2136,6 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
		} else
		DRM_DEBUG_KMS("crtc %d is disabled\n", pipe);

		udelay(100);

		/* Disable PF */
		I915_WRITE(pipe ? PFB_CTL_1 : PFA_CTL_1, 0);
		I915_WRITE(pipe ? PFB_WIN_SZ : PFA_WIN_SZ, 0);