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drm/connector: Add documentation for drm_cmdline_mode

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The struct drm_cmdline_mode holds the result of the command line parsers.
However, it wasn't documented so far, so let's do that.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/963c893c16c6a25fc469b53c726f493d99bdc578.1560783090.git-series.maxime.ripard@bootlin.com
This commit is contained in:
Maxime Ripard 2019-06-19 12:17:48 +02:00
parent c936843f06
commit 772cd52c55
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 84 additions and 2 deletions
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86
include/drm/drm_connector.h
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@ -923,18 +923,100 @@ struct drm_connector_funcs {
const struct drm_connector_state *state);
};
/* mode specified on the command line */
/**
* struct drm_cmdline_mode - DRM Mode passed through the kernel command-line
*
* Each connector can have an initial mode with additional options
* passed through the kernel command line. This structure allows to
* express those parameters and will be filled by the command-line
* parser.
*/
struct drm_cmdline_mode {
/**
* @specified:
*
* Has a mode been read from the command-line?
*/
bool specified;
/**
* @refresh_specified:
*
* Did the mode have a preferred refresh rate?
*/
bool refresh_specified;
/**
* @bpp_specified:
*
* Did the mode have a preferred BPP?
*/
bool bpp_specified;
int xres, yres;
/**
* @xres:
*
* Active resolution on the X axis, in pixels.
*/
int xres;
/**
* @yres:
*
* Active resolution on the Y axis, in pixels.
*/
int yres;
/**
* @bpp:
*
* Bits per pixels for the mode.
*/
int bpp;
/**
* @refresh:
*
* Refresh rate, in Hertz.
*/
int refresh;
/**
* @rb:
*
* Do we need to use reduced blanking?
*/
bool rb;
/**
* @interlace:
*
* The mode is interlaced.
*/
bool interlace;
/**
* @cvt:
*
* The timings will be calculated using the VESA Coordinated
* Video Timings instead of looking up the mode from a table.
*/
bool cvt;
/**
* @margins:
*
* Add margins to the mode calculation (1.8% of xres rounded
* down to 8 pixels and 1.8% of yres).
*/
bool margins;
/**
* @force:
*
* Ignore the hotplug state of the connector, and force its
* state to one of the DRM_FORCE_* values.
*/
enum drm_connector_force force;
};