lkml.org 
[lkml]   [2022]   [Aug]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 17/41] drm/connector: Add pixel clock to cmdline mode
Date
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.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 5e898699b532..73d01e755496 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2208,22 +2208,24 @@ 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,
@@ -2265,6 +2267,7 @@ 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);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 7d3881f35e7c..bb39d2bb806e 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1352,6 +1352,13 @@ struct drm_cmdline_mode {
*/
bool bpp_specified;

+ /**
+ * @pixel_clock:
+ *
+ * Pixel Clock in kHz. Optional.
+ */
+ unsigned int pixel_clock;
+
/**
* @xres:
*
--
b4 0.10.0-dev-65ba7

\
 
 \ /
  Last update: 2022-08-29 15:16    [W:0.268 / U:2.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site