linux-stable.git/drivers/gpu/drm/drm_debugfs.c, branch linux-4.9.y

drm/debugfs: fix plain echo to connector "force" attribute

2020-08-21T09:01:58+00:00

[ Upstream commit c704b17071c4dc571dca3af4e4151dac51de081a ]

Using plain echo to set the "force" connector attribute fails with
-EINVAL, because echo appends a newline to the output.

Replace strcmp with sysfs_streq to also accept strings that end with a
newline.

v2: use sysfs_streq instead of stripping trailing whitespace

Signed-off-by: Michael Tretter 
Reviewed-by: Jani Nikula 
Signed-off-by: Emil Velikov 
Link: https://patchwork.freedesktop.org/patch/msgid/20170817104307.17124-1-m.tretter@pengutronix.de
Signed-off-by: Sasha Levin

gpu: use %pd

2016-08-08T03:38:48+00:00

Signed-off-by: Al Viro

drm: Nuke legacy maps debugfs files

2016-06-16T08:16:11+00:00

GEM stopped using those a while ago, and no one should ever
need to use them again to debug legacy horror show drivers.

Nuke it all. Aside: It would kinda be nice if we'd have some
generic debugfs dumps for at least kms ...

Acked-by: Chris Wilson 
Acked-by: Emil Velikov 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/1465930269-7883-2-git-send-email-daniel.vetter@ffwll.ch

drm: Move piles of functions from drmP.h to drm_internal.h

2014-09-12T09:16:29+00:00

This way drivers can't grow crazy ideas any more, and it also
helps a bit in reviewing EXPORT_SYMBOLS.

v2: Even more stuff. Unfortunately we can't move drm_vm_open_locked
because exynos does some horrible stuff with it.

Signed-off-by: Daniel Vetter

drm: drop DRM_DEBUG_CODE

2014-09-10T07:41:20+00:00

DRM_DEBUG_CODE is currently always set, so distributions enable it. The
only reason to keep support in code is if developers wanted to disable
debug support. Sounds unlikely.

All the DRM_DEBUG() printks are still guarded by a drm_debug read. So if
its cacheline is read once, they're discarded pretty fast.. There should
hardly be any performance penalty, it's even guarded by unlikely().

Signed-off-by: David Herrmann 
Reviewed-by: Thierry Reding 
Signed-off-by: Dave Airlie

drm/debugfs: add an "edid_override" file per connector

2014-06-19T06:56:28+00:00

Add a file to debugfs for each connector to allow the EDID to be
overridden.

v2: Copy ubuf before accessing it and reject invalid length data. (David
    Herrmann)
    Ensure override_edid is reset when a new EDID value is written.
    (David Herrmann)
    Fix the debugfs file permissions. (David Herrmann)

Signed-off-by: Thomas Wood 
Reviewed-by: Alex Deucher 
Signed-off-by: Daniel Vetter

drm/debugfs: add a "force" file per connector

2014-06-19T06:56:01+00:00

Add a file to debugfs for each connector to enable modification of the
"force" connector attribute. This allows connectors to be enabled or
disabled for testing and debugging purposes.

v2: Add stricter value checking and clean up debugfs_entry if file
    creation fails in drm_debugfs_connector_add. (David Herrmann)

Signed-off-by: Thomas Wood 
Reviewed-by: Alex Deucher 
Signed-off-by: Daniel Vetter

drm: Make drm_debugfs_list const

2013-11-06T02:05:21+00:00

Signed-off-by: Damien Lespiau 
Reviewed-by: Ville Syrjälä 
Signed-off-by: Dave Airlie

drm: Constify struct drm_info_list * arguments

2013-11-06T02:04:13+00:00

Those functions are just reading data from those pointers.

Signed-off-by: Damien Lespiau 
Reviewed-by: Ville Syrjälä 
Signed-off-by: Dave Airlie

UAPI: (Scripted) Convert #include "..." to #include in drivers/gpu/

2012-10-02T17:01:07+00:00

Convert #include "..." to #include  in drivers/gpu/.

Signed-off-by: David Howells 
Acked-by: Dave Airlie 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones