From 20dc9a897a736105af739346fd6517dec6142b5d Mon Sep 17 00:00:00 2001 From: Jie Luo Date: Tue, 24 Jun 2008 10:38:31 -0700 Subject: [PATCH] DRM: enable bus mastering on i915 at resume time commit ea7b44c8e6baa1a4507f05ba2c0009ac21c3fe0b upstream On 9xx chips, bus mastering needs to be enabled at resume time for much of the chip to function. With this patch, vblank interrupts will work as expected on resume, along with other chip functions. Fixes kernel bugzilla #10844. Signed-off-by: Jie Luo Signed-off-by: Jesse Barnes Signed-off-by: Linus Torvalds Signed-off-by: Greg Kroah-Hartman --- drivers/char/drm/i915_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/drm/i915_drv.c b/drivers/char/drm/i915_drv.c index b2b451dc4460..becab51d0e30 100644 --- a/drivers/char/drm/i915_drv.c +++ b/drivers/char/drm/i915_drv.c @@ -385,6 +385,7 @@ static int i915_resume(struct drm_device *dev) pci_restore_state(dev->pdev); if (pci_enable_device(dev->pdev)) return -1; + pci_set_master(dev->pdev); pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); -- 2.47.3