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drm/i915: Don't save/restore hardware status page address register 

It's cleaned before saving and re-initialized after restoring.
So don't need to save/restore it. And also new chip has new address
for hardware status page register, don't write to old address.

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Zhenyu Wang 2011-03-02 13:52:37 +08:00 committed by Chris Wilson
parent 4cbf74ccf8
commit a7a75c8f70
2 changed files with 0 additions and 7 deletions
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1
drivers/gpu/drm/i915/i915_drv.h
View File

@ -383,7 +383,6 @@ typedef struct drm_i915_private {
u32 saveDSPACNTR;
u32 saveDSPBCNTR;
u32 saveDSPARB;
u32 saveHWS;
u32 savePIPEACONF;
u32 savePIPEBCONF;
u32 savePIPEASRC;

6
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -796,9 +796,6 @@ int i915_save_state(struct drm_device *dev)
pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
/* Hardware status page */
dev_priv->saveHWS = I915_READ(HWS_PGA);
i915_save_display(dev);
/* Interrupt state */
@ -845,9 +842,6 @@ int i915_restore_state(struct drm_device *dev)
pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
/* Hardware status page */
I915_WRITE(HWS_PGA, dev_priv->saveHWS);
i915_restore_display(dev);
/* Interrupt state */