spi: omap3: add support for more word lengths

[oweals/u-boot.git] / drivers / spi / spi.c

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index ea39d1a1eea628fe54a8cd92dd05f23e34ea92fc..b76a26cef053fea6528098db03172f113d87b007 100644 (file)
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -8,6 +8,18 @@
 #include <malloc.h>
 #include <spi.h>
 
+int spi_set_wordlen(struct spi_slave *slave, unsigned int wordlen)
+{
+       if (wordlen == 0 || wordlen > 32) {
+               printf("spi: invalid wordlen %d\n", wordlen);
+               return -1;
+       }
+
+       slave->wordlen = wordlen;
+
+       return 0;
+}
+
 void *spi_do_alloc_slave(int offset, int size, unsigned int bus,
                         unsigned int cs)
 {
@@ -20,6 +32,7 @@ void *spi_do_alloc_slave(int offset, int size, unsigned int bus,
                slave = (struct spi_slave *)(ptr + offset);
                slave->bus = bus;
                slave->cs = cs;
+               slave->wordlen = SPI_DEFAULT_WORDLEN;
        }
 
        return ptr;