553,6 → 553,32 |
} |
EXPORT_SYMBOL(drm_mode_height); |
|
/** drm_mode_hsync - get the hsync of a mode |
* @mode: mode |
* |
* LOCKING: |
* None. |
* |
* Return @modes's hsync rate in kHz, rounded to the nearest int. |
*/ |
int drm_mode_hsync(struct drm_display_mode *mode) |
{ |
unsigned int calc_val; |
|
if (mode->hsync) |
return mode->hsync; |
|
if (mode->htotal < 0) |
return 0; |
|
calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */ |
calc_val += 500; /* round to 1000Hz */ |
calc_val /= 1000; /* truncate to kHz */ |
|
return calc_val; |
} |
EXPORT_SYMBOL(drm_mode_hsync); |
|
/** |
* drm_mode_vrefresh - get the vrefresh of a mode |
* @mode: mode |
560,7 → 586,7 |
* LOCKING: |
* None. |
* |
* Return @mode's vrefresh rate or calculate it if necessary. |
* Return @mode's vrefresh rate in Hz or calculate it if necessary. |
* |
* FIXME: why is this needed? shouldn't vrefresh be set already? |
* |