26 #define RX_BIT_CHAN(chan)	BIT(chan)  argument
28 #define TX_BIT_CHAN(chan)	BIT(TX_BIT_SHIFT + (chan))  argument
39 static int stm32_ipcc_request(struct mbox_chan *chan)  in stm32_ipcc_request()  argument
41 	struct stm32_ipcc *ipcc = dev_get_priv(chan->dev);  in stm32_ipcc_request()
43 	debug("%s(chan=%p)\n", __func__, chan);  in stm32_ipcc_request()
45 	if (chan->id >= ipcc->n_chans) {  in stm32_ipcc_request()
47 		      __func__, chan->id);  in stm32_ipcc_request()
54 static int stm32_ipcc_free(struct mbox_chan *chan)  in stm32_ipcc_free()  argument
56 	debug("%s(chan=%p)\n", __func__, chan);  in stm32_ipcc_free()
61 static int stm32_ipcc_send(struct mbox_chan *chan, const void *data)  in stm32_ipcc_send()  argument
63 	struct stm32_ipcc *ipcc = dev_get_priv(chan->dev);  in stm32_ipcc_send()
65 	debug("%s(chan=%p, data=%p)\n", __func__, chan, data);  in stm32_ipcc_send()
67 	if (readl(ipcc->reg_proc + IPCC_XTOYSR) & BIT(chan->id))  in stm32_ipcc_send()
71 	setbits_le32(ipcc->reg_proc + IPCC_XSCR, TX_BIT_CHAN(chan->id));  in stm32_ipcc_send()
76 static int stm32_ipcc_recv(struct mbox_chan *chan, void *data)  in stm32_ipcc_recv()  argument
78 	struct stm32_ipcc *ipcc = dev_get_priv(chan->dev);  in stm32_ipcc_recv()
82 	debug("%s(chan=%p, data=%p)\n", __func__, chan, data);  in stm32_ipcc_recv()
88 	if (!(val & BIT(chan->id)))  in stm32_ipcc_recv()
91 	setbits_le32(ipcc->reg_proc + IPCC_XSCR, RX_BIT_CHAN(chan->id));  in stm32_ipcc_recv()