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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-05-18 21:47:38 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-05-21 07:03:31 +1000 |
| commit | fcee59065e58498682c60069cc6fb90694bab27e (patch) | |
| tree | bea115621d1291a80d6bb57c2af3a36e366b84f5 /drivers/gpu/drm/fsl-dcu | |
| parent | fc7fedc20b7c819b9ef003afa16a64dc9e5ac30e (diff) | |
| download | lwn-fcee59065e58498682c60069cc6fb90694bab27e.tar.gz lwn-fcee59065e58498682c60069cc6fb90694bab27e.zip | |
drm: Nuke ->vblank_disable_allowed
This was added in
commit 0a3e67a4caac273a3bfc4ced3da364830b1ab241
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Tue Sep 30 12:14:26 2008 -0700
drm: Rework vblank-wait handling to allow interrupt reduction.
to stay backwards-compatible with old UMS code that didn't even tell
the kernel when it did a modeset, so that the kernel could
save/restore vblank counters. At worst this means vblanks will be
somewhat funky on a setup that very likely no one still runs.
So let's just nuke it.
Plan B would be to set it unconditionally in drm_vblank_init for kms
drivers, instead of in each driver separately. So if this patch breaks
anything please only restore the hunks in drmP.h and drm_irq.c, plus
add a check for DRIVER_MODESET in drm_vblank_init.
Stumbled over this in a discussion on irc with Chris.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/fsl-dcu')
| -rw-r--r-- | drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index 44f6f262d75a..0ec1ad961e0d 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -80,7 +80,6 @@ static int fsl_dcu_load(struct drm_device *dev, unsigned long flags) dev_err(dev->dev, "failed to initialize vblank\n"); goto done; } - dev->vblank_disable_allowed = true; ret = fsl_dcu_drm_irq_init(dev); if (ret < 0) |