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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/1467297225-21379-35-git-send-email-chris@chris-wilson.co.uk
hifive-unleashed-5.1
Chris Wilson 2016-06-30 15:33:18 +01:00
parent 2af05078d6
commit 0698cf6048
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/intel_dsi.c
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@ -679,8 +679,9 @@ static void intel_dsi_clear_device_ready(struct intel_encoder *encoder)
/* Wait till Clock lanes are in LP-00 state for MIPI Port A
* only. MIPI Port C has no similar bit for checking
*/
if (wait_for(((I915_READ(port_ctrl) & AFE_LATCHOUT)
== 0x00000), 30))
if (intel_wait_for_register(dev_priv,
port_ctrl, AFE_LATCHOUT, 0,
30))
DRM_ERROR("DSI LP not going Low\n");
/* Disable MIPI PHY transparent latch */