108 	/* If overlay has a list of bridges, use it. */  in of_fpga_region_get_bridges()
109 	br = of_parse_phandle(info->overlay, "fpga-bridges", 0);  in of_fpga_region_get_bridges()
112 		np = info->overlay;  in of_fpga_region_get_bridges()
145  * @overlay: device node of the overlay
147  * If the overlay adds child FPGA regions, they are not allowed to have
152 static int child_regions_with_firmware(struct device_node *overlay)  in child_regions_with_firmware()  argument
158 	of_node_get(overlay);  in child_regions_with_firmware()
160 	child_region = of_find_matching_node(overlay, fpga_region_of_match);  in child_regions_with_firmware()
181  * of_fpga_region_parse_ov - parse and check overlay applied to region
184  * @overlay: overlay applied to the FPGA region
186  * Given an overlay applied to an FPGA region, parse the FPGA image specific
187  * info in the overlay and do some checking.
190  *   NULL if overlay doesn't direct us to program the FPGA.
192  *   error code for invalid overlay.
196 			struct device_node *overlay)  in of_fpga_region_parse_ov()  argument
204 		dev_err(dev, "Region already has overlay applied.\n");  in of_fpga_region_parse_ov()
209 	 * Reject overlay if child FPGA Regions added in the overlay have  in of_fpga_region_parse_ov()
213 	ret = child_regions_with_firmware(overlay);  in of_fpga_region_parse_ov()
221 	info->overlay = overlay;  in of_fpga_region_parse_ov()
223 	/* Read FPGA region properties from the overlay */  in of_fpga_region_parse_ov()
224 	if (of_property_read_bool(overlay, "partial-fpga-config"))  in of_fpga_region_parse_ov()
227 	if (of_property_read_bool(overlay, "external-fpga-config"))  in of_fpga_region_parse_ov()
230 	if (of_property_read_bool(overlay, "encrypted-fpga-config"))  in of_fpga_region_parse_ov()
233 	if (!of_property_read_string(overlay, "firmware-name",  in of_fpga_region_parse_ov()
241 	of_property_read_u32(overlay, "region-unfreeze-timeout-us",  in of_fpga_region_parse_ov()
244 	of_property_read_u32(overlay, "region-freeze-timeout-us",  in of_fpga_region_parse_ov()
247 	of_property_read_u32(overlay, "config-complete-timeout-us",  in of_fpga_region_parse_ov()
250 	/* If overlay is not programming the FPGA, don't need FPGA image info */  in of_fpga_region_parse_ov()
257 	 * If overlay informs us FPGA was externally programmed, specifying  in of_fpga_region_parse_ov()
273  * of_fpga_region_notify_pre_apply - pre-apply overlay notification
275  * @region: FPGA region that the overlay was applied to
276  * @nd: overlay notification data
278  * Called when an overlay targeted to an FPGA Region is about to be applied.
279  * Parses the overlay for properties that influence how the FPGA will be
281  * If the checks fail, overlay is rejected and does not get added to the
293 	info = of_fpga_region_parse_ov(region, nd->overlay);  in of_fpga_region_notify_pre_apply()
297 	/* If overlay doesn't program the FPGA, accept it anyway. */  in of_fpga_region_notify_pre_apply()
302 		dev_err(dev, "Region already has overlay applied.\n");  in of_fpga_region_notify_pre_apply()
309 		/* error; reject overlay */  in of_fpga_region_notify_pre_apply()
318  * of_fpga_region_notify_post_remove - post-remove overlay notification
320  * @region: FPGA region that was targeted by the overlay that was removed
321  * @nd: overlay notification data
323  * Called after an overlay has been removed if the overlay's target was a