diff options
Diffstat (limited to 'drivers/gpu/drm/drm_probe_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_probe_helper.c | 95 |
1 files changed, 75 insertions, 20 deletions
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index bf2dd1f46b6c..4f75a1cfd820 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -37,6 +37,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_edid.h> #include <drm/drm_fourcc.h> +#include <drm/drm_managed.h> #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> @@ -566,8 +567,8 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector, drm_modeset_acquire_init(&ctx, 0); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s]\n", connector->base.id, + connector->name); retry: ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx); @@ -610,11 +611,10 @@ retry: * check here, and if anything changed start the hotplug code. */ if (old_status != connector->status) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n", - connector->base.id, - connector->name, - drm_get_connector_status_name(old_status), - drm_get_connector_status_name(connector->status)); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s\n", + connector->base.id, connector->name, + drm_get_connector_status_name(old_status), + drm_get_connector_status_name(connector->status)); /* * The hotplug event code might call into the fb @@ -637,8 +637,8 @@ retry: drm_kms_helper_poll_enable(dev); if (connector->status == connector_status_disconnected) { - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n", - connector->base.id, connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] disconnected\n", + connector->base.id, connector->name); drm_connector_update_edid_property(connector, NULL); drm_mode_prune_invalid(dev, &connector->modes, false); goto exit; @@ -696,11 +696,13 @@ exit: drm_mode_sort(&connector->modes); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id, - connector->name); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] probed modes:\n", + connector->base.id, connector->name); + list_for_each_entry(mode, &connector->modes, head) { drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); - drm_mode_debug_printmodeline(mode); + drm_dbg_kms(dev, "Probed mode: " DRM_MODE_FMT "\n", + DRM_MODE_ARG(mode)); } return count; @@ -833,14 +835,12 @@ static void output_poll_execute(struct work_struct *work) old = drm_get_connector_status_name(old_status); new = drm_get_connector_status_name(connector->status); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] " - "status updated from %s to %s\n", - connector->base.id, - connector->name, - old, new); - DRM_DEBUG_KMS("[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", - connector->base.id, connector->name, - old_epoch_counter, connector->epoch_counter); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s\n", + connector->base.id, connector->name, + old, new); + drm_dbg_kms(dev, "[CONNECTOR:%d:%s] epoch counter %llu -> %llu\n", + connector->base.id, connector->name, + old_epoch_counter, connector->epoch_counter); changed = true; } @@ -951,6 +951,32 @@ void drm_kms_helper_poll_fini(struct drm_device *dev) } EXPORT_SYMBOL(drm_kms_helper_poll_fini); +static void drm_kms_helper_poll_init_release(struct drm_device *dev, void *res) +{ + drm_kms_helper_poll_fini(dev); +} + +/** + * drmm_kms_helper_poll_init - initialize and enable output polling + * @dev: drm_device + * + * This function initializes and then also enables output polling support for + * @dev similar to drm_kms_helper_poll_init(). Polling will automatically be + * cleaned up when the DRM device goes away. + * + * See drm_kms_helper_poll_init() for more information. + * + * Returns: + * 0 on success, or a negative errno code otherwise. + */ +int drmm_kms_helper_poll_init(struct drm_device *dev) +{ + drm_kms_helper_poll_init(dev); + + return drmm_add_action_or_reset(dev, drm_kms_helper_poll_init_release, dev); +} +EXPORT_SYMBOL(drmm_kms_helper_poll_init); + static bool check_connector_changed(struct drm_connector *connector) { struct drm_device *dev = connector->dev; @@ -1279,3 +1305,32 @@ int drm_connector_helper_tv_get_modes(struct drm_connector *connector) return i; } EXPORT_SYMBOL(drm_connector_helper_tv_get_modes); + +/** + * drm_connector_helper_detect_from_ddc - Read EDID and detect connector status. + * @connector: The connector + * @ctx: Acquire context + * @force: Perform screen-destructive operations, if necessary + * + * Detects the connector status by reading the EDID using drm_probe_ddc(), + * which requires connector->ddc to be set. Returns connector_status_connected + * on success or connector_status_disconnected on failure. + * + * Returns: + * The connector status as defined by enum drm_connector_status. + */ +int drm_connector_helper_detect_from_ddc(struct drm_connector *connector, + struct drm_modeset_acquire_ctx *ctx, + bool force) +{ + struct i2c_adapter *ddc = connector->ddc; + + if (!ddc) + return connector_status_unknown; + + if (drm_probe_ddc(ddc)) + return connector_status_connected; + + return connector_status_disconnected; +} +EXPORT_SYMBOL(drm_connector_helper_detect_from_ddc); |