1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <malloc.h> 9 #include <spi.h> 10 11 int spi_set_wordlen(struct spi_slave *slave, unsigned int wordlen) 12 { 13 if (wordlen == 0 || wordlen > 32) { 14 printf("spi: invalid wordlen %d\n", wordlen); 15 return -1; 16 } 17 18 slave->wordlen = wordlen; 19 20 return 0; 21 } 22 23 void *spi_do_alloc_slave(int offset, int size, unsigned int bus, 24 unsigned int cs) 25 { 26 struct spi_slave *slave; 27 void *ptr; 28 29 ptr = malloc(size); 30 if (ptr) { 31 memset(ptr, '\0', size); 32 slave = (struct spi_slave *)(ptr + offset); 33 slave->bus = bus; 34 slave->cs = cs; 35 slave->wordlen = SPI_DEFAULT_WORDLEN; 36 } 37 38 return ptr; 39 } 40