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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-01-23 14:35:24 (GMT)
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-03-13 11:48:40 (GMT)
commit8bd441b27e85834533df26a7f1c2c9289303c5ef (patch)
treee9ced9c2d5f7f9ddaf53e1012b1ddd9763dbb867 /drivers/gpu/drm/drm_modes.c
parent63951385052f7974155fa38f962f0f4e9847f90a (diff)
downloadlinux-8bd441b27e85834533df26a7f1c2c9289303c5ef.tar.xz
drm: move drm_mode related functions into drm_modes.c
Makes more sense and gives better grouping in the DocBook function reference sections. To make this possible we need to expose two functions from drm_crtc.c though. To avoid further namespace pollution in the system wide headers create a new internal header for such drm internal symbols. I expect that longer-term we'll add tons more, but since my goal here is to polish the kerneldoc that's for another day. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
-rw-r--r--drivers/gpu/drm/drm_modes.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index be86fed..197167d 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -38,6 +38,8 @@
#include <video/of_videomode.h>
#include <video/videomode.h>
+#include "drm_crtc_internal.h"
+
/**
* drm_mode_debug_printmodeline - print a mode to dmesg
* @mode: mode to print
@@ -57,6 +59,66 @@ void drm_mode_debug_printmodeline(const struct drm_display_mode *mode)
EXPORT_SYMBOL(drm_mode_debug_printmodeline);
/**
+ * drm_mode_create - create a new display mode
+ * @dev: DRM device
+ *
+ * Create a new drm_display_mode, give it an ID, and return it.
+ *
+ * RETURNS:
+ * Pointer to new mode on success, NULL on error.
+ */
+struct drm_display_mode *drm_mode_create(struct drm_device *dev)
+{
+ struct drm_display_mode *nmode;
+
+ nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
+ if (!nmode)
+ return NULL;
+
+ if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
+ kfree(nmode);
+ return NULL;
+ }
+
+ return nmode;
+}
+EXPORT_SYMBOL(drm_mode_create);
+
+/**
+ * drm_mode_destroy - remove a mode
+ * @dev: DRM device
+ * @mode: mode to remove
+ *
+ * Free @mode's unique identifier, then free it.
+ */
+void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
+{
+ if (!mode)
+ return;
+
+ drm_mode_object_put(dev, &mode->base);
+
+ kfree(mode);
+}
+EXPORT_SYMBOL(drm_mode_destroy);
+
+/**
+ * drm_mode_probed_add - add a mode to a connector's probed mode list
+ * @connector: connector the new mode
+ * @mode: mode data
+ *
+ * Add @mode to @connector's mode list for later use.
+ */
+void drm_mode_probed_add(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ WARN_ON(!mutex_is_locked(&connector->dev->mode_config.mutex));
+
+ list_add_tail(&mode->head, &connector->probed_modes);
+}
+EXPORT_SYMBOL(drm_mode_probed_add);
+
+/**
* drm_cvt_mode -create a modeline based on CVT algorithm
* @dev: DRM device
* @hdisplay: hdisplay size