From fdefa58a5097b397ce2d3f6b6f8caa14aacfb70d Mon Sep 17 00:00:00 2001 From: Archit Taneja Date: Fri, 31 Jul 2015 16:21:43 +0530 Subject: 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 Signed-off-by: Daniel Vetter --- drivers/gpu/drm/drm_fb_helper.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers') 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) { -- cgit v1.2.3