Commit 90a392c6 authored Jun 30, 2016 by Chris Wilson

drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()

By using the out-of-line intel_wait_for_register() not only do we can
efficiency from using the hybrid wait_for() contained within, but we
avoid code bloat from the numerous inlined loops, in total (all patches):

text data bss dec hex filename
1078551 4557 416 1083524 108884 drivers/gpu/drm/i915/i915.ko
1070775 4557 416 1075748 106a24 drivers/gpu/drm/i915/i915.ko

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-36-git-send-email-chris@chris-wilson.co.uk

parent 0698cf60

drivers/gpu/drm/i915/intel_dsi_pll.c

+5 −2

Original line number	Diff line number	Diff line
		@@ -234,8 +234,11 @@ static void bxt_disable_dsi_pll(struct intel_encoder *encoder)
		* PLL lock should deassert within 200us.
		* Wait up to 1ms before timing out.
		*/
		if (wait_for((I915_READ(BXT_DSI_PLL_ENABLE)
		& BXT_DSI_PLL_LOCKED) == 0, 1))
		if (intel_wait_for_register(dev_priv,
		BXT_DSI_PLL_ENABLE,
		BXT_DSI_PLL_LOCKED,
		0,
		1))
		DRM_ERROR("Timeout waiting for PLL lock deassertion\n");
		}