diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2016-08-31 17:29:51 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-09-14 15:10:41 -0400 |
| commit | 5756b1558eabdfb087aa9896250c6decd12bf872 (patch) | |
| tree | 90ba5cd4908e69a745763056a0811bb05e63ed80 /drivers/gpu/drm/radeon/radeon_fb.c | |
| parent | 7c1fa1db54549a75250763c68afb150418085db1 (diff) | |
drm/radeon: handle runtime pm in fbcon (v2)
Ported from nouveau.
v2: re-enable runtime autosuspend in the error case
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_fb.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_fb.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index 0e3143acb565..6b2537d913e8 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -26,6 +26,7 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/fb.h> +#include <linux/pm_runtime.h> #include <drm/drmP.h> #include <drm/drm_crtc.h> @@ -47,8 +48,35 @@ struct radeon_fbdev { struct radeon_device *rdev; }; +static int +radeonfb_open(struct fb_info *info, int user) +{ + struct radeon_fbdev *rfbdev = info->par; + struct radeon_device *rdev = rfbdev->rdev; + int ret = pm_runtime_get_sync(rdev->ddev->dev); + if (ret < 0 && ret != -EACCES) { + pm_runtime_mark_last_busy(rdev->ddev->dev); + pm_runtime_put_autosuspend(rdev->ddev->dev); + return ret; + } + return 0; +} + +static int +radeonfb_release(struct fb_info *info, int user) +{ + struct radeon_fbdev *rfbdev = info->par; + struct radeon_device *rdev = rfbdev->rdev; + + pm_runtime_mark_last_busy(rdev->ddev->dev); + pm_runtime_put_autosuspend(rdev->ddev->dev); + return 0; +} + static struct fb_ops radeonfb_ops = { .owner = THIS_MODULE, + .fb_open = radeonfb_open, + .fb_release = radeonfb_release, .fb_check_var = drm_fb_helper_check_var, .fb_set_par = drm_fb_helper_set_par, .fb_fillrect = drm_fb_helper_cfb_fillrect, |