diff options
Diffstat (limited to 'drivers/gpu/drm/drm_probe_helper.c')
-rw-r--r-- | drivers/gpu/drm/drm_probe_helper.c | 126 |
1 files changed, 117 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_probe_helper.c b/drivers/gpu/drm/drm_probe_helper.c index bcd9611dabfd..95aeeed33cf5 100644 --- a/drivers/gpu/drm/drm_probe_helper.c +++ b/drivers/gpu/drm/drm_probe_helper.c @@ -250,6 +250,12 @@ void drm_kms_helper_poll_enable(struct drm_device *dev) drm_connector_list_iter_begin(dev, &conn_iter); drm_for_each_connector_iter(connector, &conn_iter) { + const struct drm_connector_helper_funcs *funcs = + connector->helper_private; + + if (funcs && funcs->enable_hpd) + funcs->enable_hpd(connector); + if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT)) poll = true; @@ -802,6 +808,30 @@ bool drm_kms_helper_is_poll_worker(void) } EXPORT_SYMBOL(drm_kms_helper_is_poll_worker); +static void drm_kms_helper_poll_disable_fini(struct drm_device *dev, bool fini) +{ + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + + if (!dev->mode_config.poll_enabled) + return; + + if (fini) + dev->mode_config.poll_enabled = false; + + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + const struct drm_connector_helper_funcs *funcs = + connector->helper_private; + + if (funcs && funcs->disable_hpd) + funcs->disable_hpd(connector); + } + drm_connector_list_iter_end(&conn_iter); + + cancel_delayed_work_sync(&dev->mode_config.output_poll_work); +} + /** * drm_kms_helper_poll_disable - disable output polling * @dev: drm_device @@ -818,9 +848,7 @@ EXPORT_SYMBOL(drm_kms_helper_is_poll_worker); */ void drm_kms_helper_poll_disable(struct drm_device *dev) { - if (!dev->mode_config.poll_enabled) - return; - cancel_delayed_work_sync(&dev->mode_config.output_poll_work); + drm_kms_helper_poll_disable_fini(dev, false); } EXPORT_SYMBOL(drm_kms_helper_poll_disable); @@ -858,11 +886,7 @@ EXPORT_SYMBOL(drm_kms_helper_poll_init); */ void drm_kms_helper_poll_fini(struct drm_device *dev) { - if (!dev->mode_config.poll_enabled) - return; - - dev->mode_config.poll_enabled = false; - cancel_delayed_work_sync(&dev->mode_config.output_poll_work); + drm_kms_helper_poll_disable_fini(dev, true); } EXPORT_SYMBOL(drm_kms_helper_poll_fini); @@ -1139,10 +1163,94 @@ int drm_connector_helper_get_modes(struct drm_connector *connector) * EDID. Otherwise, if the EDID is NULL, clear the connector * information. */ - count = drm_edid_connector_update(connector, drm_edid); + drm_edid_connector_update(connector, drm_edid); + + count = drm_edid_connector_add_modes(connector); drm_edid_free(drm_edid); return count; } EXPORT_SYMBOL(drm_connector_helper_get_modes); + +/** + * drm_connector_helper_tv_get_modes - Fills the modes availables to a TV connector + * @connector: The connector + * + * Fills the available modes for a TV connector based on the supported + * TV modes, and the default mode expressed by the kernel command line. + * + * This can be used as the default TV connector helper .get_modes() hook + * if the driver does not need any special processing. + * + * Returns: + * The number of modes added to the connector. + */ +int drm_connector_helper_tv_get_modes(struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *tv_mode_property = + dev->mode_config.tv_mode_property; + struct drm_cmdline_mode *cmdline = &connector->cmdline_mode; + unsigned int ntsc_modes = BIT(DRM_MODE_TV_MODE_NTSC) | + BIT(DRM_MODE_TV_MODE_NTSC_443) | + BIT(DRM_MODE_TV_MODE_NTSC_J) | + BIT(DRM_MODE_TV_MODE_PAL_M); + unsigned int pal_modes = BIT(DRM_MODE_TV_MODE_PAL) | + BIT(DRM_MODE_TV_MODE_PAL_N) | + BIT(DRM_MODE_TV_MODE_SECAM); + unsigned int tv_modes[2] = { UINT_MAX, UINT_MAX }; + unsigned int i, supported_tv_modes = 0; + + if (!tv_mode_property) + return 0; + + for (i = 0; i < tv_mode_property->num_values; i++) + supported_tv_modes |= BIT(tv_mode_property->values[i]); + + if ((supported_tv_modes & ntsc_modes) && + (supported_tv_modes & pal_modes)) { + uint64_t default_mode; + + if (drm_object_property_get_default_value(&connector->base, + tv_mode_property, + &default_mode)) + return 0; + + if (cmdline->tv_mode_specified) + default_mode = cmdline->tv_mode; + + if (BIT(default_mode) & ntsc_modes) { + tv_modes[0] = DRM_MODE_TV_MODE_NTSC; + tv_modes[1] = DRM_MODE_TV_MODE_PAL; + } else { + tv_modes[0] = DRM_MODE_TV_MODE_PAL; + tv_modes[1] = DRM_MODE_TV_MODE_NTSC; + } + } else if (supported_tv_modes & ntsc_modes) { + tv_modes[0] = DRM_MODE_TV_MODE_NTSC; + } else if (supported_tv_modes & pal_modes) { + tv_modes[0] = DRM_MODE_TV_MODE_PAL; + } else { + return 0; + } + + for (i = 0; i < ARRAY_SIZE(tv_modes); i++) { + struct drm_display_mode *mode; + + if (tv_modes[i] == DRM_MODE_TV_MODE_NTSC) + mode = drm_mode_analog_ntsc_480i(dev); + else if (tv_modes[i] == DRM_MODE_TV_MODE_PAL) + mode = drm_mode_analog_pal_576i(dev); + else + break; + if (!mode) + return i; + if (!i) + mode->type |= DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + } + + return i; +} +EXPORT_SYMBOL(drm_connector_helper_tv_get_modes); |