staticchar drm_client_default[16] = CONFIG_DRM_CLIENT_DEFAULT;
module_param_string(active, drm_client_default, sizeof(drm_client_default), 0444);
MODULE_PARM_DESC(active, "Choose which drm client to start, default is "
CONFIG_DRM_CLIENT_DEFAULT);
/** * drm_client_setup() - Setup in-kernel DRM clients * @dev: DRM device * @format: Preferred pixel format for the device. Use NULL, unless * there is clearly a driver-preferred format. * * This function sets up the in-kernel DRM clients. Restore, hotplug * events and teardown are all taken care of. * * Drivers should call drm_client_setup() after registering the new * DRM device with drm_dev_register(). This function is safe to call * even when there are no connectors present. Setup will be retried * on the next hotplug event. * * The clients are destroyed by drm_dev_unregister().
*/ void drm_client_setup(struct drm_device *dev, conststruct drm_format_info *format)
{ if (!drm_core_check_feature(dev, DRIVER_MODESET)) {
drm_dbg(dev, "driver does not support mode-setting, skipping DRM clients\n"); return;
}
#ifdef CONFIG_DRM_FBDEV_EMULATION if (!strcmp(drm_client_default, "fbdev")) { int ret;
ret = drm_fbdev_client_setup(dev, format); if (ret)
drm_warn(dev, "Failed to set up DRM client; error %d\n", ret); return;
} #endif
/** * drm_client_setup_with_fourcc() - Setup in-kernel DRM clients for color mode * @dev: DRM device * @fourcc: Preferred pixel format as 4CC code for the device * * This function sets up the in-kernel DRM clients. It is equivalent * to drm_client_setup(), but expects a 4CC code as second argument.
*/ void drm_client_setup_with_fourcc(struct drm_device *dev, u32 fourcc)
{
drm_client_setup(dev, drm_format_info(fourcc));
}
EXPORT_SYMBOL(drm_client_setup_with_fourcc);
/** * drm_client_setup_with_color_mode() - Setup in-kernel DRM clients for color mode * @dev: DRM device * @color_mode: Preferred color mode for the device * * This function sets up the in-kernel DRM clients. It is equivalent * to drm_client_setup(), but expects a color mode as second argument. * * Do not use this function in new drivers. Prefer drm_client_setup() with a * format of NULL.
*/ void drm_client_setup_with_color_mode(struct drm_device *dev, unsignedint color_mode)
{
u32 fourcc = drm_driver_color_mode_format(dev, color_mode);
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