drm/xe/display: add notes about how early a few functions can be called

xe_display_driver_probe_defer() and xe_display_driver_set_hooks() get
called before either struct xe_device or struct intel_display
exist. Make a note of that.

Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://lore.kernel.org/r/937ea1e16e970a6f6944b94c6a9c216d36e728d1.1747397638.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index c35444637620fd74a6f46ef07df298942e0e4665..8b2aa7dc6e076270579d3d9fd7787b2b59c93bb7 100644 (file)
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -48,6 +48,8 @@ static bool has_display(struct xe_device *xe)
  *                                early on
  * @pdev: PCI device
  *
+ * Note: This is called before xe or display device creation.
+ *
  * Returns: true if probe needs to be deferred, false otherwise
  */
 bool xe_display_driver_probe_defer(struct pci_dev *pdev)
@@ -65,6 +67,8 @@ bool xe_display_driver_probe_defer(struct pci_dev *pdev)
  * Set features and function hooks in @driver that are needed for driving the
  * display IP. This sets the driver's capability of driving display, regardless
  * if the device has it enabled
+ *
+ * Note: This is called before xe or display device creation.
  */
 void xe_display_driver_set_hooks(struct drm_driver *driver)
 {