184 static int br_trans_tx_prepare(struct spi_avmm_bridge *br, bool is_read, u32 reg,  in br_trans_tx_prepare()  argument
205 	header = (struct trans_req_header *)br->trans_buf;  in br_trans_tx_prepare()
215 		if (trans_len > sizeof(br->trans_buf))  in br_trans_tx_prepare()
218 		data = (__le32 *)(br->trans_buf + TRANS_REQ_HD_SIZE);  in br_trans_tx_prepare()
225 	br->trans_len = trans_len;  in br_trans_tx_prepare()
253 static int br_pkt_phy_tx_prepare(struct spi_avmm_bridge *br)  in br_pkt_phy_tx_prepare()  argument
259 	tb = br->trans_buf;  in br_pkt_phy_tx_prepare()
260 	tb_end = tb + br->trans_len;  in br_pkt_phy_tx_prepare()
261 	pb = br->phy_buf;  in br_pkt_phy_tx_prepare()
262 	pb_limit = pb + ARRAY_SIZE(br->phy_buf);  in br_pkt_phy_tx_prepare()
315 	br->phy_len = pb - br->phy_buf;  in br_pkt_phy_tx_prepare()
317 	if (br->word_len == 1)  in br_pkt_phy_tx_prepare()
321 	aligned_phy_len = ALIGN(br->phy_len, br->word_len);  in br_pkt_phy_tx_prepare()
322 	if (aligned_phy_len > sizeof(br->phy_buf))  in br_pkt_phy_tx_prepare()
325 	if (aligned_phy_len == br->phy_len)  in br_pkt_phy_tx_prepare()
330 	memmove(&br->phy_buf[aligned_phy_len - move_size], pb_eop, move_size);  in br_pkt_phy_tx_prepare()
333 	memset(pb_eop, PHY_IDLE, aligned_phy_len - br->phy_len);  in br_pkt_phy_tx_prepare()
336 	br->phy_len = aligned_phy_len;  in br_pkt_phy_tx_prepare()
345 static int br_do_tx(struct spi_avmm_bridge *br)  in br_do_tx()  argument
348 	if (br->swap_words)  in br_do_tx()
349 		br->swap_words(br->phy_buf, br->phy_len);  in br_do_tx()
352 	return spi_write(br->spi, br->phy_buf, br->phy_len);  in br_do_tx()
365 static int br_do_rx_and_pkt_phy_parse(struct spi_avmm_bridge *br)  in br_do_rx_and_pkt_phy_parse()  argument
369 	struct device *dev = &br->spi->dev;  in br_do_rx_and_pkt_phy_parse()
374 	tb_limit = br->trans_buf + ARRAY_SIZE(br->trans_buf);  in br_do_rx_and_pkt_phy_parse()
375 	pb = br->phy_buf;  in br_do_rx_and_pkt_phy_parse()
378 		ret = spi_read(br->spi, pb, br->word_len);  in br_do_rx_and_pkt_phy_parse()
383 		if (br->swap_words)  in br_do_rx_and_pkt_phy_parse()
384 			br->swap_words(pb, br->word_len);  in br_do_rx_and_pkt_phy_parse()
387 		for (i = 0; i < br->word_len; i++) {  in br_do_rx_and_pkt_phy_parse()
418 				tb = br->trans_buf;  in br_do_rx_and_pkt_phy_parse()
464 					br->trans_len = tb - br->trans_buf;  in br_do_rx_and_pkt_phy_parse()
506 static int br_rd_trans_rx_parse(struct spi_avmm_bridge *br,  in br_rd_trans_rx_parse()  argument
509 	unsigned int i, trans_len = br->trans_len;  in br_rd_trans_rx_parse()
515 	data = (__le32 *)br->trans_buf;  in br_rd_trans_rx_parse()
526 static int br_wr_trans_rx_parse(struct spi_avmm_bridge *br,  in br_wr_trans_rx_parse()  argument
529 	unsigned int trans_len = br->trans_len;  in br_wr_trans_rx_parse()
537 	resp = (struct trans_resp_header *)br->trans_buf;  in br_wr_trans_rx_parse()
555 	struct spi_avmm_bridge *br = context;  in do_reg_access()  local
559 	br->trans_len = 0;  in do_reg_access()
560 	br->phy_len = 0;  in do_reg_access()
562 	ret = br_trans_tx_prepare(br, is_read, reg, value, count);  in do_reg_access()
566 	ret = br_pkt_phy_tx_prepare(br);  in do_reg_access()
570 	ret = br_do_tx(br);  in do_reg_access()
574 	ret = br_do_rx_and_pkt_phy_parse(br);  in do_reg_access()
579 		return br_rd_trans_rx_parse(br, value, count);  in do_reg_access()
581 		return br_wr_trans_rx_parse(br, count);  in do_reg_access()
625 	struct spi_avmm_bridge *br;  in spi_avmm_bridge_ctx_gen()  local
639 	br = kzalloc(sizeof(*br), GFP_KERNEL);  in spi_avmm_bridge_ctx_gen()
640 	if (!br)  in spi_avmm_bridge_ctx_gen()
643 	br->spi = spi;  in spi_avmm_bridge_ctx_gen()
644 	br->word_len = spi->bits_per_word / 8;  in spi_avmm_bridge_ctx_gen()
645 	if (br->word_len == 4) {  in spi_avmm_bridge_ctx_gen()
651 		br->swap_words = br_swap_words_32;  in spi_avmm_bridge_ctx_gen()
654 	return br;  in spi_avmm_bridge_ctx_gen()