diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_switcheroo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_switcheroo.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_switcheroo.c b/drivers/gpu/drm/i915/i915_switcheroo.c index 23777d500cdf..7e0791024282 100644 --- a/drivers/gpu/drm/i915/i915_switcheroo.c +++ b/drivers/gpu/drm/i915/i915_switcheroo.c @@ -5,6 +5,10 @@ #include <linux/vga_switcheroo.h> +#include <drm/drm_print.h> + +#include "display/intel_display_device.h" + #include "i915_driver.h" #include "i915_drv.h" #include "i915_switcheroo.h" @@ -13,12 +17,17 @@ static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state) { struct drm_i915_private *i915 = pdev_to_i915(pdev); + struct intel_display *display = i915 ? i915->display : NULL; pm_message_t pmm = { .event = PM_EVENT_SUSPEND }; if (!i915) { dev_err(&pdev->dev, "DRM not initialized, aborting switch.\n"); return; } + if (!intel_display_device_present(display)) { + dev_err(&pdev->dev, "Device state not initialized, aborting switch.\n"); + return; + } if (state == VGA_SWITCHEROO_ON) { drm_info(&i915->drm, "switched on\n"); @@ -38,13 +47,15 @@ static void i915_switcheroo_set_state(struct pci_dev *pdev, static bool i915_switcheroo_can_switch(struct pci_dev *pdev) { struct drm_i915_private *i915 = pdev_to_i915(pdev); + struct intel_display *display = i915 ? i915->display : NULL; /* * FIXME: open_count is protected by drm_global_mutex but that would lead to * locking inversion with the driver load path. And the access here is * completely racy anyway. So don't bother with locking for now. */ - return i915 && atomic_read(&i915->drm.open_count) == 0; + return i915 && intel_display_device_present(display) && + atomic_read(&i915->drm.open_count) == 0; } static const struct vga_switcheroo_client_ops i915_switcheroo_ops = { |