diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-12-07 09:20:40 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-01-05 13:45:30 +1000 |
| commit | 5bcf719b7db0f9366cedaf102b081f99b1c325ae (patch) | |
| tree | 6929d42e1d61a3b1bd7b130a37a80b99718e14aa /drivers/gpu/drm/drm_fops.c | |
| parent | 8d608aa6295242fe4c4b6105b8c59c6a5b232d89 (diff) | |
| download | kernel_samsung_smdk4412-5bcf719b7db0f9366cedaf102b081f99b1c325ae.zip kernel_samsung_smdk4412-5bcf719b7db0f9366cedaf102b081f99b1c325ae.tar.gz kernel_samsung_smdk4412-5bcf719b7db0f9366cedaf102b081f99b1c325ae.tar.bz2 | |
drm/switcheroo: track state of switch in drivers.
We need to track the state of the switch in drivers, so that after s/r
we don't resume the card we've explicitly switched off before. Also
don't allow a userspace open to occur if we've switched the gpu off.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fops.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index a39794b..2ec7d48 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -236,6 +236,8 @@ static int drm_open_helper(struct inode *inode, struct file *filp, return -EBUSY; /* No exclusive opens */ if (!drm_cpu_valid()) return -EINVAL; + if (dev->switch_power_state != DRM_SWITCH_POWER_ON) + return -EINVAL; DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id); |