[PATCH 1/2] drm/fb-helper: Clarify drm_fb_helper_restore_fbdev_mode*()

From: Geert Uytterhoeven
Date: Tue Aug 04 2015 - 09:22:48 EST


From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

As of commit 5ea1f752ae04be40 ("drm: add
drm_fb_helper_restore_fbdev_mode_unlocked()"),
drm_fb_helper_restore_fbdev_mode() is no longer public, and drivers
should call drm_fb_helper_restore_fbdev_mode_unlocked() from their
->lastclose callbacks instead.

Update the documentation to reflect this, and absorb the one liner
drm_fb_helper_restore_fbdev_mode() into its single caller.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
drivers/gpu/drm/drm_fb_helper.c | 21 +++------------------
1 file changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index e4bbb53096029718..7278c23ea98b9918 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -56,8 +56,8 @@ static LIST_HEAD(kernel_fb_helper_list);
* Teardown is done with drm_fb_helper_fini().
*
* At runtime drivers should restore the fbdev console by calling
- * drm_fb_helper_restore_fbdev_mode() from their ->lastclose callback. They
- * should also notify the fb helper code from updates to the output
+ * drm_fb_helper_restore_fbdev_mode_unlocked() from their ->lastclose callback.
+ * They should also notify the fb helper code from updates to the output
* configuration by calling drm_fb_helper_hotplug_event(). For easier
* integration with the output polling code in drm_crtc_helper.c the modeset
* code provides a ->output_poll_changed callback.
@@ -354,21 +354,6 @@ static bool restore_fbdev_mode(struct drm_fb_helper *fb_helper)
}
return error;
}
-/**
- * drm_fb_helper_restore_fbdev_mode - restore fbdev configuration
- * @fb_helper: fbcon to restore
- *
- * This should be called from driver's drm ->lastclose callback
- * when implementing an fbcon on top of kms using this helper. This ensures that
- * the user isn't greeted with a black screen when e.g. X dies.
- *
- * Use this variant if you need to bypass locking (panic), or already
- * hold all modeset locks. Otherwise use drm_fb_helper_restore_fbdev_mode_unlocked()
- */
-static bool drm_fb_helper_restore_fbdev_mode(struct drm_fb_helper *fb_helper)
-{
- return restore_fbdev_mode(fb_helper);
-}

/**
* drm_fb_helper_restore_fbdev_mode_unlocked - restore fbdev configuration
@@ -417,7 +402,7 @@ static bool drm_fb_helper_force_kernel_mode(void)
continue;

drm_modeset_lock_all(dev);
- ret = drm_fb_helper_restore_fbdev_mode(helper);
+ ret = restore_fbdev_mode(helper);
if (ret)
error = true;
drm_modeset_unlock_all(dev);
--
1.9.1

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