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drm: Add mode_config .get_format_info() hook

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Allow drivers to return a custom drm_format_info structure for special
fb layouts. We'll use this for the compression control surface in i915.

v2: Fix drm_get_format_info() kernel doc (Laurent)
    Don't pass 'dev' to the new hook (Laurent)
v3: s/compresssion/compression/ (Ben)

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170321181218.10042-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2017-03-21 20:12:16 +02:00
parent 33f673aa55
commit 6a0f9ebfc5
6 changed files with 54 additions and 4 deletions
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2
drivers/gpu/drm/drm_modeset_helper.c
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@@ -78,7 +78,7 @@ void drm_helper_mode_fill_fb_struct(struct drm_device *dev,
int i;
fb->dev = dev;
fb->format = drm_format_info(mode_cmd->pixel_format);
fb->format = drm_get_format_info(dev, mode_cmd);
fb->width = mode_cmd->width;
fb->height = mode_cmd->height;
for (i = 0; i < 4; i++) {