diff options
| -rw-r--r-- | linux-core/drm_crtc.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c index e8f42feb..f6c675c5 100644 --- a/linux-core/drm_crtc.c +++ b/linux-core/drm_crtc.c @@ -134,6 +134,15 @@ bool drm_crtc_in_use(struct drm_crtc *crtc) } EXPORT_SYMBOL(drm_crtc_in_use); +/* + * Detailed mode info for a standard 640x480@60Hz monitor + */ +static struct drm_display_mode std_mode[] = { + { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25200, 640, 656, + 752, 800, 0, 480, 490, 492, 525, 0, + V_NHSYNC | V_NVSYNC) }, /* 640x480@60Hz */ +}; + void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY) { struct drm_output *output; @@ -175,8 +184,22 @@ void drm_crtc_probe_output_modes(struct drm_device *dev, int maxX, int maxY) drm_mode_prune_invalid(dev, &output->modes, TRUE); if (list_empty(&output->modes)) { + struct drm_display_mode *newmode; + DRM_DEBUG("No valid modes found on %s\n", output->name); - continue; + + /* Should we do this here ??? + * When no valid EDID modes are available we end up + * here and bailed in the past, now we add a standard + * 640x480@60Hz mode and carry on. + */ + newmode = drm_mode_duplicate(dev, &std_mode[0]); + drm_mode_probed_add(output, newmode); + drm_mode_list_concat(&output->probed_modes, + &output->modes); + + DRM_DEBUG("Adding standard 640x480 @ 60Hz to %s\n", + output->name); } drm_mode_sort(&output->modes); @@ -310,13 +333,11 @@ bool drm_set_desired_modes(struct drm_device *dev) } } /* Skip disabled crtcs */ - if (!output) + if (!output) { + DRM_DEBUG("skipping disabled crtc\n"); continue; - - memset(&crtc->mode, 0, sizeof(crtc->mode)); - if (!crtc->desired_mode->crtc_hdisplay) { - } + if (!drm_crtc_set_mode(crtc, crtc->desired_mode, crtc->desired_x, crtc->desired_y)) return false; |