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| author | Dave Airlie <airlied@redhat.com> | 2022-04-12 17:39:45 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-04-12 17:44:27 +1000 |
| commit | b85ffe47c4ec172214a38b7e7087c60582c488f0 (patch) | |
| tree | 128168c955a62a870f7da7cfda94e9299a076486 /drivers/gpu/drm/drm_modes.c | |
| parent | ce522ba9ef7e2d9fb22a39eb3371c0c64e2a433e (diff) | |
| parent | c8d4c18bfbc4ab467188dbe45cc8155759f49d9e (diff) | |
Merge tag 'drm-misc-next-2022-04-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.19:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- atomic: Add atomic_print_state to private objects
- edid: Constify the EDID parsing API, rework of the API
- dma-buf: Add dma_resv_replace_fences, dma_resv_get_singleton, make
dma_resv_excl_fence private
- format: Support monochrome formats
- fbdev: fixes for cfb_imageblit and sys_imageblit, pagelist
corruption fix
- selftests: several small fixes
- ttm: Rework bulk move handling
Driver Changes:
- Switch all relevant drivers to drm_mode_copy or drm_mode_duplicate
- bridge: conversions to devm_drm_of_get_bridge and panel_bridge,
autosuspend for analogix_dp, audio support for it66121, DSI to DPI
support for tc358767, PLL fixes and I2C support for icn6211
- bridge_connector: Enable HPD if supported
- etnaviv: fencing improvements
- gma500: GEM and GTT improvements, connector handling fixes
- komeda: switch to plane reset helper
- mediatek: MIPI DSI improvements
- omapdrm: GEM improvements
- panel: DT bindings fixes for st7735r, few fixes for ssd130x, new
panels: ltk035c5444t, B133UAN01, NV3052C
- qxl: Allow to run on arm64
- sysfb: Kconfig rework, support for VESA graphic mode selection
- vc4: Add a tracepoint for CL submissions, HDMI YUV output,
HDMI and clock improvements
- virtio: Remove restriction of non-zero blob_flags,
- vmwgfx: support for CursorMob and CursorBypass 4, various
improvements and small fixes
[airlied: fixup conflict with newvision panel callbacks]
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220407085940.pnflvjojs4qw4b77@houat
Diffstat (limited to 'drivers/gpu/drm/drm_modes.c')
| -rw-r--r-- | drivers/gpu/drm/drm_modes.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index 3f819c7a021b..6e7e10f16ec0 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -942,6 +942,23 @@ void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode * EXPORT_SYMBOL(drm_mode_copy); /** + * drm_mode_init - initialize the mode from another mode + * @dst: mode to overwrite + * @src: mode to copy + * + * Copy an existing mode into another mode, zeroing the + * list head of the destination mode. Typically used + * to guarantee the list head is not left with stack + * garbage in on-stack modes. + */ +void drm_mode_init(struct drm_display_mode *dst, const struct drm_display_mode *src) +{ + memset(dst, 0, sizeof(*dst)); + drm_mode_copy(dst, src); +} +EXPORT_SYMBOL(drm_mode_init); + +/** * drm_mode_duplicate - allocate and duplicate an existing mode * @dev: drm_device to allocate the duplicated mode for * @mode: mode to duplicate |