35 	struct rpi_firmware *fw = container_of(cl, struct rpi_firmware, cl);  in response_callback()  local
36 	complete(&fw->c);  in response_callback()
44 rpi_firmware_transaction(struct rpi_firmware *fw, u32 chan, u32 data)  in rpi_firmware_transaction()  argument
52 	reinit_completion(&fw->c);  in rpi_firmware_transaction()
53 	ret = mbox_send_message(fw->chan, &message);  in rpi_firmware_transaction()
55 		wait_for_completion(&fw->c);  in rpi_firmware_transaction()
58 		dev_err(fw->cl.dev, "mbox_send_message returned %d\n", ret);  in rpi_firmware_transaction()
79 int rpi_firmware_property_list(struct rpi_firmware *fw,  in rpi_firmware_property_list()  argument
91 	buf = dma_alloc_coherent(fw->cl.dev, PAGE_ALIGN(size), &bus_addr,  in rpi_firmware_property_list()
105 	ret = rpi_firmware_transaction(fw, MBOX_CHAN_PROPERTY, bus_addr);  in rpi_firmware_property_list()
115 		dev_err(fw->cl.dev, "Request 0x%08x returned status 0x%08x\n",  in rpi_firmware_property_list()
120 	dma_free_coherent(fw->cl.dev, PAGE_ALIGN(size), buf, bus_addr);  in rpi_firmware_property_list()
140 int rpi_firmware_property(struct rpi_firmware *fw,  in rpi_firmware_property()  argument
157 	ret = rpi_firmware_property_list(fw, &data, sizeof(data));  in rpi_firmware_property()
167 rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)  in rpi_firmware_print_firmware_revision()  argument
170 	int ret = rpi_firmware_property(fw,  in rpi_firmware_print_firmware_revision()
179 		dev_info(fw->cl.dev,  in rpi_firmware_print_firmware_revision()
189 	struct rpi_firmware *fw;  in rpi_firmware_probe()  local
191 	fw = devm_kzalloc(dev, sizeof(*fw), GFP_KERNEL);  in rpi_firmware_probe()
192 	if (!fw)  in rpi_firmware_probe()
195 	fw->cl.dev = dev;  in rpi_firmware_probe()
196 	fw->cl.rx_callback = response_callback;  in rpi_firmware_probe()
197 	fw->cl.tx_block = true;  in rpi_firmware_probe()
199 	fw->chan = mbox_request_channel(&fw->cl, 0);  in rpi_firmware_probe()
200 	if (IS_ERR(fw->chan)) {  in rpi_firmware_probe()
201 		int ret = PTR_ERR(fw->chan);  in rpi_firmware_probe()
207 	init_completion(&fw->c);  in rpi_firmware_probe()
209 	platform_set_drvdata(pdev, fw);  in rpi_firmware_probe()
211 	rpi_firmware_print_firmware_revision(fw);  in rpi_firmware_probe()
218 	struct rpi_firmware *fw = platform_get_drvdata(pdev);  in rpi_firmware_remove()  local
220 	mbox_free_channel(fw->chan);  in rpi_firmware_remove()