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drm: Move the legacy kms disable_all helper to crtc helpers

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It's not a core function, and the matching atomic functions are also
not in the core. Plus the suspend/resume helper is also already there.

Needs a tiny bit of open-coding, but less midlayer beats that I think.

v2: Rebase onto ast (which gained a new user).

Cc: Sam Bobroff <sbobroff@linux.ibm.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: Rex Zhu <Rex.Zhu@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Shaoyun Liu <Shaoyun.Liu@amd.com>
Cc: Monk Liu <Monk.Liu@amd.com>
Cc: nouveau@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Link: https://patchwork.freedesktop.org/patch/msgid/20181217194303.14397-4-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter
2018-12-17 20:43:00 +01:00
parent 324bb707d2
commit c2d88e06bc
8 changed files with 40 additions and 37 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/gpu/drm/drm_crtc.c
View File

@@ -104,37 +104,6 @@ int drm_crtc_force_disable(struct drm_crtc *crtc)
return drm_mode_set_config_internal(&set);
}
/**
* drm_crtc_force_disable_all - Forcibly turn off all enabled CRTCs
* @dev: DRM device whose CRTCs to turn off
*
* Drivers may want to call this on unload to ensure that all displays are
* unlit and the GPU is in a consistent, low power state. Takes modeset locks.
*
* Note: This should only be used by non-atomic legacy drivers. For an atomic
* version look at drm_atomic_helper_shutdown().
*
* Returns:
* Zero on success, error code on failure.
*/
int drm_crtc_force_disable_all(struct drm_device *dev)
{
struct drm_crtc *crtc;
int ret = 0;
drm_modeset_lock_all(dev);
drm_for_each_crtc(crtc, dev)
if (crtc->enabled) {
ret = drm_crtc_force_disable(crtc);
if (ret)
goto out;
}
out:
drm_modeset_unlock_all(dev);
return ret;
}
EXPORT_SYMBOL(drm_crtc_force_disable_all);
static unsigned int drm_num_crtcs(struct drm_device *dev)
{
unsigned int num = 0;