diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 84a4a809793..81118893264 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -37,6 +37,7 @@ #include "drm_fourcc.h" #include "drm_crtc_helper.h" #include "drm_fb_helper.h" +#include "drm_edid.h" static bool drm_kms_helper_poll = true; module_param_named(poll, drm_kms_helper_poll, bool, 0600); @@ -44,12 +45,12 @@ module_param_named(poll, drm_kms_helper_poll, bool, 0600); static void drm_mode_validate_flag(struct drm_connector *connector, int flags) { - struct drm_display_mode *mode, *t; + struct drm_display_mode *mode; if (flags == (DRM_MODE_FLAG_DBLSCAN | DRM_MODE_FLAG_INTERLACE)) return; - list_for_each_entry_safe(mode, t, &connector->modes, head) { + list_for_each_entry(mode, &connector->modes, head) { if ((mode->flags & DRM_MODE_FLAG_INTERLACE) && !(flags & DRM_MODE_FLAG_INTERLACE)) mode->status = MODE_NO_INTERLACE; @@ -87,7 +88,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, uint32_t maxX, uint32_t maxY) { struct drm_device *dev = connector->dev; - struct drm_display_mode *mode, *t; + struct drm_display_mode *mode; struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; int count = 0; @@ -96,7 +97,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, drm_get_connector_name(connector)); /* set all modes to the unverified state */ - list_for_each_entry_safe(mode, t, &connector->modes, head) + list_for_each_entry(mode, &connector->modes, head) mode->status = MODE_UNVERIFIED; if (connector->force) { @@ -118,7 +119,12 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, goto prune; } - count = (*connector_funcs->get_modes)(connector); +#ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE + count = drm_load_edid_firmware(connector); + if (count == 0) +#endif + count = (*connector_funcs->get_modes)(connector); + if (count == 0 && connector->status == connector_status_connected) count = drm_add_modes_noedid(connector, 1024, 768); if (count == 0) @@ -136,7 +142,7 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, mode_flags |= DRM_MODE_FLAG_DBLSCAN; drm_mode_validate_flag(connector, mode_flags); - list_for_each_entry_safe(mode, t, &connector->modes, head) { + list_for_each_entry(mode, &connector->modes, head) { if (mode->status == MODE_OK) mode->status = connector_funcs->mode_valid(connector, mode); @@ -152,7 +158,7 @@ prune: DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id, drm_get_connector_name(connector)); - list_for_each_entry_safe(mode, t, &connector->modes, head) { + list_for_each_entry(mode, &connector->modes, head) { mode->vrefresh = drm_mode_vrefresh(mode); drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); @@ -352,6 +358,8 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, return true; adjusted_mode = drm_mode_duplicate(dev, mode); + if (!adjusted_mode) + return false; saved_hwmode = crtc->hwmode; saved_mode = crtc->mode; |