summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorArchit Taneja <architt@codeaurora.org>2015-07-31 16:21:43 +0530
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-08-06 14:12:56 +0200
commitfdefa58a5097b397ce2d3f6b6f8caa14aacfb70d (patch)
tree01d2c449583c926a927455060bf9fca257418074
parent742547b73d27e7bce2d0dd0f1b95692436f30950 (diff)
drm/fb_helper: Create a wrapper for fb_set_suspend
Some drm drivers call fb_set_suspend. Create a drm_fb_helper function that wraps around these calls. This is part of an effort to prevent drm drivers from calling fbdev functions directly, in order to make fbdev emulation a top level drm option. v3: - Fixed kerneldoc errors v2: - Added kerneldocs - Added a check for non-NULL fb_helper before proceeding. This will make the helpers work when we have a module param for fbdev emulation - Follow the drm way of aligning of arguments in func definitions Signed-off-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
-rw-r--r--drivers/gpu/drm/drm_fb_helper.c14
-rw-r--r--include/drm/drm_fb_helper.h2
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index e63350114c06..c1cb7537a18f 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -877,6 +877,20 @@ void drm_fb_helper_cfb_imageblit(struct fb_info *info,
}
EXPORT_SYMBOL(drm_fb_helper_cfb_imageblit);
+/**
+ * drm_fb_helper_set_suspend - wrapper around fb_set_suspend
+ * @fb_helper: driver-allocated fbdev helper
+ * @state: desired state, zero to resume, non-zero to suspend
+ *
+ * A wrapper around fb_set_suspend implemented by fbdev core
+ */
+void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, int state)
+{
+ if (fb_helper && fb_helper->fbdev)
+ fb_set_suspend(fb_helper->fbdev, state);
+}
+EXPORT_SYMBOL(drm_fb_helper_set_suspend);
+
static int setcolreg(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, u16 regno, struct fb_info *info)
{
diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h
index 180290e62918..ef32500e07fc 100644
--- a/include/drm/drm_fb_helper.h
+++ b/include/drm/drm_fb_helper.h
@@ -166,6 +166,8 @@ void drm_fb_helper_cfb_copyarea(struct fb_info *info,
void drm_fb_helper_cfb_imageblit(struct fb_info *info,
const struct fb_image *image);
+void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, int state);
+
int drm_fb_helper_setcmap(struct fb_cmap *cmap, struct fb_info *info);
int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper);