kernel/linux.git/drivers/gpu/drm/drm_sysfs.c, branch v5.15.89

drm/sysfs: Convert sysfs sprintf/snprintf family to sysfs_emit

2021-03-23T11:41:39+00:00

Fix the following coccicheck warning: drivers/gpu/drm/drm_sysfs.c:172:8-16: WARNING: use scnprintf or sprintf drivers/gpu/drm/drm_sysfs.c:185:8-16: WARNING: use scnprintf or sprintf drivers/gpu/drm/drm_sysfs.c:159:8-16: WARNING: use scnprintf or sprintf Signed-off-by: Tian Tao Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1616375978-12151-1-git-send-email-tiantao6@hisilicon.com

drm/connector: notify userspace on hotplug after register complete

2020-06-03T08:24:23+00:00

drm connector notifies userspace on hotplug event prematurely before late_register and mode_object register completes. This leads to a race between userspace and kernel on updating the IDR list. So, move the notification to end of connector register. Signed-off-by: Jeykumar Sankaran Signed-off-by: Steve Cohen Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/1591155451-10393-1-git-send-email-jsanka@codeaurora.org

drm: sysfs: Use scnprintf() for avoiding potential buffer overflow

2020-03-11T13:54:09+00:00

Since snprintf() returns the would-be-output size instead of the actual output size, the succeeding calls may go beyond the given buffer limit. Fix it by replacing with scnprintf(). Signed-off-by: Takashi Iwai Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20200311073540.7108-1-tiwai@suse.de

drm/hdcp: optimizing the srm handling

2020-03-04T01:03:00+00:00

As we are not using the sysfs infrastructure anymore, link to it is removed. And global srm data and mutex to protect it are removed, with required handling at revocation check function. v2: srm_data is dropped and few more comments are addressed. v3: ptr passing around is fixed with functional testing. v4: fix htmldoc [lkp] Signed-off-by: Ramalingam C Suggested-by: Sean Paul Reviewed-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20200212102942.26568-2-ramalingam.c@intel.com

drm: uevent for connector status change

2019-08-06T07:46:54+00:00

DRM API for generating uevent for a status changes of connector's property. This uevent will have following details related to the status change: HOTPLUG=1, CONNECTOR= and PROPERTY= Pekka have completed the Weston DRM-backend review in https://gitlab.freedesktop.org/wayland/weston/merge_requests/48 and the UAPI for HDCP 2.2 looks good. The userspace is accepted in Weston. v2: Minor fixes at KDoc comments [Daniel] v3: Check the property is really attached with connector [Daniel] v4: Typos and string length suggestions are addressed [Sean] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Sean Paul Acked-by: Pekka Paalanen Acked-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/320961/?series=57232&rev=14

drm: Add ddc link in sysfs created by drm_connector

2019-07-31T14:26:33+00:00

Add generic code which creates symbolic links in sysfs, pointing to ddc interface used by a particular video output. For example: ls -l /sys/class/drm/card0-HDMI-A-1/ddc lrwxrwxrwx 1 root root 0 Jun 24 10:42 /sys/class/drm/card0-HDMI-A-1/ddc \ -> ../../../../soc/13880000.i2c/i2c-2 This makes it easy for user to associate a display with its ddc adapter and use e.g. ddcutil to control the chosen monitor. This patch adds an i2c_adapter pointer to struct drm_connector. Particular drivers can then use it instead of using their own private instance. If a connector contains a ddc, then create a symbolic link in sysfs. Signed-off-by: Andrzej Pietrasiewicz Acked-by: Daniel Vetter Reviewed-by: Andrzej Hajda Reviewed-by: Emil Velikov Reviewed-by: Sam Ravnborg Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/d470def6cd661b777faeee67b5838a4623c4010e.1564161140.git.andrzej.p@collabora.com

Merge v5.2-rc5 into drm-next

2019-06-19T10:07:29+00:00

Maarten needs -rc4 backmerged so he can pull in the fbcon notifier removal topic branch into drm-misc-next. Signed-off-by: Daniel Vetter

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428

2019-06-05T15:37:16+00:00

Based on 1 normalized pattern(s): this file is released under the gplv2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 68 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Armijn Hemel Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190114.292346262@linutronix.de Signed-off-by: Greg Kroah-Hartman

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

2019-05-28T07:39:08+00:00

This picks up rc2 for us as well. Signed-off-by: Maarten Lankhorst

drm: drop use of drmP.h in drm/*

2019-05-27T16:07:03+00:00

The use of the drmP.h header file is deprecated. Remove use from all files in drm/* so people do not look there and follow a bad example. Build tested allyesconfig,allmodconfig on x86, arm etc. Including alpha that is as always more challenging than the rest. Signed-off-by: Sam Ravnborg Acked-by: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org