diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 11d8414edbbe..44912ecebc1a 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -35,9 +35,12 @@ #include "i915_trace.h" #include "intel_drv.h" +#include <linux/apple-gmux.h> #include <linux/console.h> #include <linux/module.h> #include <linux/pm_runtime.h> +#include <linux/vgaarb.h> +#include <linux/vga_switcheroo.h> #include <drm/drm_crtc_helper.h> static struct drm_driver driver; @@ -969,6 +972,15 @@ static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (PCI_FUNC(pdev->devfn)) return -ENODEV; + /* + * apple-gmux is needed on dual GPU MacBook Pro + * to probe the panel if we're the inactive GPU. + */ + if (IS_ENABLED(CONFIG_VGA_ARB) && IS_ENABLED(CONFIG_VGA_SWITCHEROO) && + apple_gmux_present() && pdev != vga_default_device() && + !vga_switcheroo_handler_flags()) + return -EPROBE_DEFER; + return drm_get_pci_dev(pdev, ent, &driver); } |