178 static int br_trans_tx_prepare(struct spi_avmm_bridge *br, bool is_read, u32 reg,  in br_trans_tx_prepare()  argument
199 	header = (struct trans_req_header *)br->trans_buf;  in br_trans_tx_prepare()
209 		if (trans_len > sizeof(br->trans_buf))  in br_trans_tx_prepare()
212 		data = (__le32 *)(br->trans_buf + TRANS_REQ_HD_SIZE);  in br_trans_tx_prepare()
219 	br->trans_len = trans_len;  in br_trans_tx_prepare()
247 static int br_pkt_phy_tx_prepare(struct spi_avmm_bridge *br)  in br_pkt_phy_tx_prepare()  argument
253 	tb = br->trans_buf;  in br_pkt_phy_tx_prepare()
254 	tb_end = tb + br->trans_len;  in br_pkt_phy_tx_prepare()
255 	pb = br->phy_buf;  in br_pkt_phy_tx_prepare()
256 	pb_limit = pb + ARRAY_SIZE(br->phy_buf);  in br_pkt_phy_tx_prepare()
309 	br->phy_len = pb - br->phy_buf;  in br_pkt_phy_tx_prepare()
311 	if (br->word_len == 1)  in br_pkt_phy_tx_prepare()
315 	aligned_phy_len = ALIGN(br->phy_len, br->word_len);  in br_pkt_phy_tx_prepare()
316 	if (aligned_phy_len > sizeof(br->phy_buf))  in br_pkt_phy_tx_prepare()
319 	if (aligned_phy_len == br->phy_len)  in br_pkt_phy_tx_prepare()
324 	memmove(&br->phy_buf[aligned_phy_len - move_size], pb_eop, move_size);  in br_pkt_phy_tx_prepare()
327 	memset(pb_eop, PHY_IDLE, aligned_phy_len - br->phy_len);  in br_pkt_phy_tx_prepare()
330 	br->phy_len = aligned_phy_len;  in br_pkt_phy_tx_prepare()
339 static int br_do_tx(struct spi_avmm_bridge *br)  in br_do_tx()  argument
342 	if (br->swap_words)  in br_do_tx()
343 		br->swap_words(br->phy_buf, br->phy_len);  in br_do_tx()
346 	return spi_write(br->spi, br->phy_buf, br->phy_len);  in br_do_tx()
359 static int br_do_rx_and_pkt_phy_parse(struct spi_avmm_bridge *br)  in br_do_rx_and_pkt_phy_parse()  argument
363 	struct device *dev = &br->spi->dev;  in br_do_rx_and_pkt_phy_parse()
368 	tb_limit = br->trans_buf + ARRAY_SIZE(br->trans_buf);  in br_do_rx_and_pkt_phy_parse()
369 	pb = br->phy_buf;  in br_do_rx_and_pkt_phy_parse()
372 		ret = spi_read(br->spi, pb, br->word_len);  in br_do_rx_and_pkt_phy_parse()
377 		if (br->swap_words)  in br_do_rx_and_pkt_phy_parse()
378 			br->swap_words(pb, br->word_len);  in br_do_rx_and_pkt_phy_parse()
381 		for (i = 0; i < br->word_len; i++) {  in br_do_rx_and_pkt_phy_parse()
412 				tb = br->trans_buf;  in br_do_rx_and_pkt_phy_parse()
458 					br->trans_len = tb - br->trans_buf;  in br_do_rx_and_pkt_phy_parse()
500 static int br_rd_trans_rx_parse(struct spi_avmm_bridge *br,  in br_rd_trans_rx_parse()  argument
503 	unsigned int i, trans_len = br->trans_len;  in br_rd_trans_rx_parse()
509 	data = (__le32 *)br->trans_buf;  in br_rd_trans_rx_parse()
520 static int br_wr_trans_rx_parse(struct spi_avmm_bridge *br,  in br_wr_trans_rx_parse()  argument
523 	unsigned int trans_len = br->trans_len;  in br_wr_trans_rx_parse()
531 	resp = (struct trans_resp_header *)br->trans_buf;  in br_wr_trans_rx_parse()
549 	struct spi_avmm_bridge *br = context;  in do_reg_access()  local
553 	br->trans_len = 0;  in do_reg_access()
554 	br->phy_len = 0;  in do_reg_access()
556 	ret = br_trans_tx_prepare(br, is_read, reg, value, count);  in do_reg_access()
560 	ret = br_pkt_phy_tx_prepare(br);  in do_reg_access()
564 	ret = br_do_tx(br);  in do_reg_access()
568 	ret = br_do_rx_and_pkt_phy_parse(br);  in do_reg_access()
573 		return br_rd_trans_rx_parse(br, value, count);  in do_reg_access()
575 		return br_wr_trans_rx_parse(br, count);  in do_reg_access()
619 	struct spi_avmm_bridge *br;  in spi_avmm_bridge_ctx_gen()  local
633 	br = kzalloc(sizeof(*br), GFP_KERNEL);  in spi_avmm_bridge_ctx_gen()
634 	if (!br)  in spi_avmm_bridge_ctx_gen()
637 	br->spi = spi;  in spi_avmm_bridge_ctx_gen()
638 	br->word_len = spi->bits_per_word / 8;  in spi_avmm_bridge_ctx_gen()
639 	if (br->word_len == 4) {  in spi_avmm_bridge_ctx_gen()
645 		br->swap_words = br_swap_words_32;  in spi_avmm_bridge_ctx_gen()
648 	return br;  in spi_avmm_bridge_ctx_gen()