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path: root/drivers/gpu/drm/drm_kms_helper_common.c
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2019-05-27drm: drop use of drmP.h in drm/*Sam Ravnborg1-1/+2
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 <sam@ravnborg.org> Acked-by: Daniel Vetter <daniel@ffwll.ch> 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> Link: https://patchwork.freedesktop.org/patch/msgid/20190526173535.32701-8-sam@ravnborg.org
2019-03-04drm: fix spelling mistake "intead" -> "instead"Colin Ian King1-1/+1
There is a spelling mistake in a DRM_NOTE message. Fix this. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sean Paul <seanpaul@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20190217225554.17742-1-colin.king@canonical.com
2017-09-19drm: add backwards compatibility support for drm_kms_helper.edid_firmwareJani Nikula1-0/+28
Add drm_kms_helper.edid_firmware module parameter with param ops hooks to set drm.edid_firmware instead, for backwards compatibility. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170918182003.22238-2-jani.nikula@intel.com
2017-03-09drm: Remove drmP.h include from drm_kms_helper_common.cDaniel Vetter1-2/+1
An easy one as a drive-by. Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-6-daniel.vetter@ffwll.ch
2016-08-16drm: Don't export dp-aux devnode functionsDaniel Vetter1-1/+2
They're only used internally within the dp helpers. Also nuke the kerneldoc (we only document the driver interface in the drm shared functions). And move the header file from the public include/ directory to the source files into drm_crtc_helper_internal.h, similar to how we already have drm_crtc_internal.h. While at it also move drm_fb_helper_modinit since that belongs in there, too. I noticed this all since I spotted kerneldoc which wasn't pulled into the rst templates. v2: Update Copyright date. Cc: Sean Paul <seanpaul@chromium.org> Cc: Rafael Antognolli <rafael.antognolli@intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-16-git-send-email-daniel.vetter@ffwll.ch
2016-02-12drm/dp: Add a drm_aux-dev module for reading/writing dpcd registers.Rafael Antognolli1-1/+14
This module is heavily based on i2c-dev. Once loaded, it provides one dev node per DP AUX channel, named drm_dp_auxN, where N is an integer. It's possible to know which connector owns this aux channel by looking at the respective sysfs /sys/class/drm_aux_dev/drm_dp_auxN/connector, if the connector device pointer was correctly set in the aux helper struct. Two main operations are provided on the registers read and write. The address of the register to be read or written is given using lseek. The seek position is updated upon read or write. v2: - lseek is used to select the register to read/write - read/write are used instead of ioctl - no blocking_notifier is used, just a direct callback v3: - use drm_dp_aux_dev prefix for public functions - chardev is named drm_dp_auxN - read/write don't allocate a buffer anymore, and transfer up to 16 bytes a time - remove notifier list from the implementation - option on menuconfig is now a boolean - add inline stub functions to avoid breakage when this option is disabled v4: - fix build system changes - actually disable this module when not selected. v5: - Use kref to avoid device closing while still in use - Don't use list, use an idr for storing aux_dev - Remove "connector" attribute - set aux.dev to the connector drm_connector device, instead of drm_device v6: - Use atomic_t for usage count - Use a mutex instead of spinlock for idr lock - Destroy chardev immediately on unregister - other minor suggestions from Ville v7: - style fixes - error handling fixes v8: - more error handling fixes v9: - remove module_init and module_exit, and add drm_dp_aux_dev_init/exit to drm_kms_helper_init/exit. Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1453417821-2811-3-git-send-email-rafael.antognolli@intel.com
2016-02-12drm/kms_helper: Add a common place to call init and exit functions.Rafael Antognolli1-0/+47
The module_init and module_exit functions will start here, and call the subsequent init's and exit's. v10: - Keep __init on drm_fb_helper init function. - Move MODULE_* macros to the common file. Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1453417821-2811-2-git-send-email-rafael.antognolli@intel.com