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document drm_mode_duplicate and fix vrefresh calculation (off by 1000 error)

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Jesse Barnes 2007-04-07 19:24:53 -07:00
parent 13d4ea90c0
commit 491ed9e4c2
1 changed files with 8 additions and 1 deletions
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9
linux-core/drm_modes.c
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@ -75,7 +75,7 @@ int drm_mode_vrefresh(struct drm_display_mode *mode)
if (mode->vrefresh > 0) if (mode->vrefresh > 0)
refresh = mode->vrefresh; refresh = mode->vrefresh;
else if (mode->htotal > 0 && mode->vtotal > 0) { else if (mode->htotal > 0 && mode->vtotal > 0) {
refresh = ((mode->clock * 1000) * 1000) / mode->htotal / mode->vtotal; refresh = (mode->clock * 1000) / mode->htotal / mode->vtotal;
if (mode->flags & V_INTERLACE) if (mode->flags & V_INTERLACE)
refresh *= 2; refresh *= 2;
if (mode->flags & V_DBLSCAN) if (mode->flags & V_DBLSCAN)
@ -139,6 +139,13 @@ void drm_mode_set_crtcinfo(struct drm_display_mode *p, int adjust_flags)
EXPORT_SYMBOL(drm_mode_set_crtcinfo); EXPORT_SYMBOL(drm_mode_set_crtcinfo);
/**
* drm_mode_duplicate - allocate and duplicate an existing mode
* @m: mode to duplicate
*
* Just allocate a new mode, copy the existing mode into it, and return
* a pointer to it. Used to create new instances of established modes.
*/
struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, struct drm_display_mode *mode) struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, struct drm_display_mode *mode)
{ {
struct drm_display_mode *nmode; struct drm_display_mode *nmode;