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drm/connector: Add pixel clock to cmdline mode 

We'll need to get the pixel clock to generate proper display modes for
all the current named modes. Let's add it to struct drm_cmdline_mode and
fill it when parsing the named mode.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v9-12-24b168e5bcd5@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard 2022-11-14 14:00:31 +01:00
parent 00dcc4a2d5
commit 0e308efe23
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
2 changed files with 13 additions and 3 deletions
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9
drivers/gpu/drm/drm_modes.c
View File

@ -1752,22 +1752,24 @@ static int drm_mode_parse_cmdline_options(const char *str,
struct drm_named_mode {
const char *name;
unsigned int pixel_clock_khz;
unsigned int xres;
unsigned int yres;
unsigned int flags;
};
#define NAMED_MODE(_name, _x, _y, _flags) \
#define NAMED_MODE(_name, _pclk, _x, _y, _flags) \
{ \
.name = _name, \
.pixel_clock_khz = _pclk, \
.xres = _x, \
.yres = _y, \
.flags = _flags, \
}
static const struct drm_named_mode drm_named_modes[] = {
NAMED_MODE("NTSC", 720, 480, DRM_MODE_FLAG_INTERLACE),
NAMED_MODE("PAL", 720, 576, DRM_MODE_FLAG_INTERLACE),
NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE),
NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE),
};
static int drm_mode_parse_cmdline_named_mode(const char *name,
@ -1808,6 +1810,7 @@ static int drm_mode_parse_cmdline_named_mode(const char *name,
continue;
strcpy(cmdline_mode->name, mode->name);
cmdline_mode->pixel_clock = mode->pixel_clock_khz;
cmdline_mode->xres = mode->xres;
cmdline_mode->yres = mode->yres;
cmdline_mode->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);

7
include/drm/drm_connector.h
View File

@ -1212,6 +1212,13 @@ struct drm_cmdline_mode {
*/
bool bpp_specified;
/**
* @pixel_clock:
*
* Pixel Clock in kHz. Optional.
*/
unsigned int pixel_clock;
/**
* @xres:
*