1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
2ba6c3ce9SSimon Glass /*
3ba6c3ce9SSimon Glass * Copyright (c) 2011 The Chromium OS Authors.
4ba6c3ce9SSimon Glass */
5ba6c3ce9SSimon Glass
6ba6c3ce9SSimon Glass #include <common.h>
70efc0249SSimon Glass #include <fdtdec.h>
8ba6c3ce9SSimon Glass #include <malloc.h>
9ba6c3ce9SSimon Glass #include <spi.h>
10ba6c3ce9SSimon Glass
spi_set_wordlen(struct spi_slave * slave,unsigned int wordlen)115753d09bSNikita Kiryanov int spi_set_wordlen(struct spi_slave *slave, unsigned int wordlen)
125753d09bSNikita Kiryanov {
135753d09bSNikita Kiryanov if (wordlen == 0 || wordlen > 32) {
14547bcc3dSMario Six printf("spi: invalid wordlen %u\n", wordlen);
155753d09bSNikita Kiryanov return -1;
165753d09bSNikita Kiryanov }
175753d09bSNikita Kiryanov
185753d09bSNikita Kiryanov slave->wordlen = wordlen;
195753d09bSNikita Kiryanov
205753d09bSNikita Kiryanov return 0;
215753d09bSNikita Kiryanov }
225753d09bSNikita Kiryanov
spi_do_alloc_slave(int offset,int size,unsigned int bus,unsigned int cs)23ba6c3ce9SSimon Glass void *spi_do_alloc_slave(int offset, int size, unsigned int bus,
24ba6c3ce9SSimon Glass unsigned int cs)
25ba6c3ce9SSimon Glass {
26547bcc3dSMario Six u8 *ptr;
27ba6c3ce9SSimon Glass
28ba6c3ce9SSimon Glass ptr = malloc(size);
29ba6c3ce9SSimon Glass if (ptr) {
30547bcc3dSMario Six struct spi_slave *slave;
31547bcc3dSMario Six
32ba6c3ce9SSimon Glass memset(ptr, '\0', size);
33ba6c3ce9SSimon Glass slave = (struct spi_slave *)(ptr + offset);
34ba6c3ce9SSimon Glass slave->bus = bus;
35ba6c3ce9SSimon Glass slave->cs = cs;
365753d09bSNikita Kiryanov slave->wordlen = SPI_DEFAULT_WORDLEN;
37ba6c3ce9SSimon Glass }
38ba6c3ce9SSimon Glass
39ba6c3ce9SSimon Glass return ptr;
40ba6c3ce9SSimon Glass }
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