27 	struct imx_sc_ipc *sc_ipc;  member
106 	struct imx_sc_ipc *sc_ipc = sc_chan->sc_ipc;  in imx_scu_rx_callback()  local
112 		sc_ipc->rx_size = hdr->size;  in imx_scu_rx_callback()
113 		dev_dbg(sc_ipc->dev, "msg rx size %u\n", sc_ipc->rx_size);  in imx_scu_rx_callback()
114 		if (sc_ipc->rx_size > 4)  in imx_scu_rx_callback()
115 			dev_warn(sc_ipc->dev, "RPC does not support receiving over 4 words: %u\n",  in imx_scu_rx_callback()
116 				 sc_ipc->rx_size);  in imx_scu_rx_callback()
119 	sc_ipc->msg[sc_chan->idx] = *data;  in imx_scu_rx_callback()
120 	sc_ipc->count++;  in imx_scu_rx_callback()
122 	dev_dbg(sc_ipc->dev, "mu %u msg %u 0x%x\n", sc_chan->idx,  in imx_scu_rx_callback()
123 		sc_ipc->count, *data);  in imx_scu_rx_callback()
125 	if ((sc_ipc->rx_size != 0) && (sc_ipc->count == sc_ipc->rx_size))  in imx_scu_rx_callback()
126 		complete(&sc_ipc->done);  in imx_scu_rx_callback()
129 static int imx_scu_ipc_write(struct imx_sc_ipc *sc_ipc, void *msg)  in imx_scu_ipc_write()  argument
141 	dev_dbg(sc_ipc->dev, "RPC SVC %u FUNC %u SIZE %u\n", hdr->svc,  in imx_scu_ipc_write()
145 		sc_chan = &sc_ipc->chans[i % 4];  in imx_scu_ipc_write()
157 int imx_scu_call_rpc(struct imx_sc_ipc *sc_ipc, void *msg, bool have_resp)  in imx_scu_call_rpc()  argument
162 	if (WARN_ON(!sc_ipc || !msg))  in imx_scu_call_rpc()
165 	mutex_lock(&sc_ipc->lock);  in imx_scu_call_rpc()
166 	reinit_completion(&sc_ipc->done);  in imx_scu_call_rpc()
168 	sc_ipc->msg = msg;  in imx_scu_call_rpc()
169 	sc_ipc->count = 0;  in imx_scu_call_rpc()
170 	ret = imx_scu_ipc_write(sc_ipc, msg);  in imx_scu_call_rpc()
172 		dev_err(sc_ipc->dev, "RPC send msg failed: %d\n", ret);  in imx_scu_call_rpc()
177 		if (!wait_for_completion_timeout(&sc_ipc->done,  in imx_scu_call_rpc()
179 			dev_err(sc_ipc->dev, "RPC send msg timeout\n");  in imx_scu_call_rpc()
180 			mutex_unlock(&sc_ipc->lock);  in imx_scu_call_rpc()
190 	mutex_unlock(&sc_ipc->lock);  in imx_scu_call_rpc()
192 	dev_dbg(sc_ipc->dev, "RPC SVC done\n");  in imx_scu_call_rpc()
201 	struct imx_sc_ipc *sc_ipc;  in imx_scu_probe()  local
208 	sc_ipc = devm_kzalloc(dev, sizeof(*sc_ipc), GFP_KERNEL);  in imx_scu_probe()
209 	if (!sc_ipc)  in imx_scu_probe()
221 		sc_chan = &sc_ipc->chans[i];  in imx_scu_probe()
228 		sc_chan->sc_ipc = sc_ipc;  in imx_scu_probe()
244 	sc_ipc->dev = dev;  in imx_scu_probe()
245 	mutex_init(&sc_ipc->lock);  in imx_scu_probe()
246 	init_completion(&sc_ipc->done);  in imx_scu_probe()
248 	imx_sc_ipc_handle = sc_ipc;  in imx_scu_probe()