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| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2014-07-22 14:09:10 +0400 |
|---|---|---|
| committer | Boris Brezillon <boris.brezillon@free-electrons.com> | 2015-01-21 11:45:34 +0300 |
| commit | b5571e9df66c1bfb81a4a7947726c3d627d3cb41 (patch) | |
| tree | b44ddd56185242f88141dc8e666c73af54b73668 /drivers/gpu/drm/drm_crtc.c | |
| parent | fc83975348ebce07793e6b9f780edc3cbcffa9fc (diff) | |
| download | linux-b5571e9df66c1bfb81a4a7947726c3d627d3cb41.tar.xz | |
drm: add bus_formats and num_bus_formats fields to drm_display_info
Add bus_formats and num_bus_formats fields and
drm_display_info_set_bus_formats helper function to specify the bus
formats supported by a given display.
This information can be used by display controller drivers to configure
the output interface appropriately (i.e. RGB565, RGB666 or RGB888 on raw
RGB or LVDS busses).
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index caec5c3634bb..df90048de92e 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -762,6 +762,40 @@ static void drm_mode_remove(struct drm_connector *connector, } /** + * drm_display_info_set_bus_formats - set the supported bus formats + * @info: display info to store bus formats in + * @fmts: array containing the supported bus formats + * @nfmts: 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 (!formats) + 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); + +/** * drm_connector_get_cmdline_mode - reads the user's cmdline mode * @connector: connector to quwery * @@ -923,6 +957,7 @@ void drm_connector_cleanup(struct drm_connector *connector) ida_remove(&drm_connector_enum_list[connector->connector_type].ida, connector->connector_type_id); + kfree(connector->display_info.bus_formats); drm_mode_object_put(dev, &connector->base); kfree(connector->name); connector->name = NULL; |