spi: Use void pointers for data in simple SPI I/O operations
Currently the simple SPI I/O operations all take pointers to u8 * buffers
to operate on. This creates needless type compatibility issues and the
underlying spi_transfer structure uses void pointers anyway so convert the
API over to take void pointers too.
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index b4d7710..bb4f5fb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -581,7 +581,7 @@
* Callable only from contexts that can sleep.
*/
static inline int
-spi_write(struct spi_device *spi, const u8 *buf, size_t len)
+spi_write(struct spi_device *spi, const void *buf, size_t len)
{
struct spi_transfer t = {
.tx_buf = buf,
@@ -605,7 +605,7 @@
* Callable only from contexts that can sleep.
*/
static inline int
-spi_read(struct spi_device *spi, u8 *buf, size_t len)
+spi_read(struct spi_device *spi, void *buf, size_t len)
{
struct spi_transfer t = {
.rx_buf = buf,
@@ -620,8 +620,8 @@
/* this copies txbuf and rxbuf data; for small transfers only! */
extern int spi_write_then_read(struct spi_device *spi,
- const u8 *txbuf, unsigned n_tx,
- u8 *rxbuf, unsigned n_rx);
+ const void *txbuf, unsigned n_tx,
+ void *rxbuf, unsigned n_rx);
/**
* spi_w8r8 - SPI synchronous 8 bit write followed by 8 bit read
