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| author | Michał Mirosław <mirq-linux@rere.qmqm.pl> | 2018-09-07 19:47:07 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2018-09-07 22:07:49 +0200 |
| commit | c9527f0de508b1ce625a4c80fc0a3a796a720aab (patch) | |
| tree | 110d614a2f43c2b58dcd8357fb15fcfbcfe0e982 | |
| parent | d3147adcfd95d21a0509ff4f2a87a671a3392e65 (diff) | |
| download | lwn-c9527f0de508b1ce625a4c80fc0a3a796a720aab.tar.gz lwn-c9527f0de508b1ce625a4c80fc0a3a796a720aab.zip | |
drm/fb-helper: document remove*_conflicting_framebuffers()
Copy remove*_conflicting_framebuffers() kerneldocs from fbdev code
to make DRM developers' life easier.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/f70c1cc4a4f77dd9bad58fc7ca344609c0a91fa7.1536342228.git.mirq-linux@rere.qmqm.pl
| -rw-r--r-- | include/drm/drm_fb_helper.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 8b6ab3200a2c..bb9acea61369 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -604,6 +604,16 @@ drm_fbdev_generic_setup(struct drm_device *dev, unsigned int preferred_bpp) #endif +/** + * drm_fb_helper_remove_conflicting_framebuffers - remove firmware-configured framebuffers + * @a: memory range, users of which are to be removed + * @name: requesting driver name + * @primary: also kick vga16fb if present + * + * This function removes framebuffer devices (initialized by firmware/bootloader) + * which use memory range described by @a. If @a is NULL all such devices are + * removed. + */ static inline int drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary) @@ -615,6 +625,18 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a, #endif } +/** + * drm_fb_helper_remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices + * @pdev: PCI device + * @resource_id: index of PCI BAR configuring framebuffer memory + * @name: requesting driver name + * + * This function removes framebuffer devices (eg. initialized by firmware) + * using memory range configured for @pdev's BAR @resource_id. + * + * The function assumes that PCI device with shadowed ROM drives a primary + * display and so kicks out vga16fb. + */ static inline int drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int resource_id, |