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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-08-12 23:48:55 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-08-16 19:49:47 +0300 |
| commit | b3c6c8bfe378309f8185d591579a3cb3aa2fe2e8 (patch) | |
| tree | cc1f2e998723db9c12cb2d167255b5b8ffab3690 /drivers/gpu/drm/drm_connector.c | |
| parent | 46444537479fa836969b441198e3144026c69541 (diff) | |
| download | linux-b3c6c8bfe378309f8185d591579a3cb3aa2fe2e8.tar.xz | |
drm: document drm_display_info
We seem to have a bit a mess in how to describe the bus formats, with
a multitude of competing ways. Might be best to consolidate it all and
use MEDIA_BUS_FMT_ also for the hdmi color formats and high color
modes.
Also move all the display_info related functions into drm_connector.c
(there's only one) to group it all together. I did decided against
also moving the edid related display info functions, they seem to fit
better in drm_edid.c. Instead sprinkle a few cross references around.
While at that reduce the kerneldoc for static functions, there's not
point in documenting internals with that much detail really.
v2: Fix typo and move misplaced hunk (Sean).
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-19-git-send-email-daniel.vetter@ffwll.ch
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
| -rw-r--r-- | drivers/gpu/drm/drm_connector.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 6a0551744d13..26bb78c76481 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -506,6 +506,40 @@ static const struct drm_prop_enum_list drm_dpms_enum_list[] = { }; DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) +/** + * drm_display_info_set_bus_formats - set the supported bus formats + * @info: display info to store bus formats in + * @formats: array containing the supported bus formats + * @num_formats: the number of entries in the fmts array + * + * Store the supported bus formats in display info structure. + * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for + * a full list of available formats. + */ +int drm_display_info_set_bus_formats(struct drm_display_info *info, + const u32 *formats, + unsigned int num_formats) +{ + u32 *fmts = NULL; + + if (!formats && num_formats) + return -EINVAL; + + if (formats && num_formats) { + fmts = kmemdup(formats, sizeof(*formats) * num_formats, + GFP_KERNEL); + if (!fmts) + return -ENOMEM; + } + + kfree(info->bus_formats); + info->bus_formats = fmts; + info->num_bus_formats = num_formats; + + return 0; +} +EXPORT_SYMBOL(drm_display_info_set_bus_formats); + /* Optional connector properties. */ static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { { DRM_MODE_SCALE_NONE, "None" }, |