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Merge branches 'spi-core' and 'spi-tegra' into spi-next

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This commit is contained in:
Mark Brown
2012-11-09 16:47:00 +00:00
parent fad8f9c0b2 caae070c48 24bc897161
commit 19f15f0efd
2 changed files with 15 additions and 6 deletions
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5
drivers/spi/spi-tegra20-slink.c
View File

@ -727,8 +727,7 @@ static int tegra_slink_start_transfer_one(struct spi_device *spi,
unsigned long command;
unsigned long command2;
bits_per_word = t->bits_per_word ? t->bits_per_word :
spi->bits_per_word;
bits_per_word = t->bits_per_word;
speed = t->speed_hz ? t->speed_hz : spi->max_speed_hz;
if (!speed)
speed = tspi->spi_max_frequency;
@ -1110,8 +1109,8 @@ const struct tegra_slink_chip_data tegra20_spi_cdata = {
};
static struct of_device_id tegra_slink_of_match[] __devinitconst = {
{ .compatible = "nvidia,tegra20-slink", .data = &tegra20_spi_cdata, },
{ .compatible = "nvidia,tegra30-slink", .data = &tegra30_spi_cdata, },
{ .compatible = "nvidia,tegra20-slink", .data = &tegra20_spi_cdata, },
{}
};
MODULE_DEVICE_TABLE(of, tegra_slink_of_match);

16
drivers/spi/spi.c
View File

@ -1156,7 +1156,7 @@ EXPORT_SYMBOL_GPL(spi_busnum_to_master);
int spi_setup(struct spi_device *spi)
{
unsigned bad_bits;
int status;
int status = 0;
/* help drivers fail *cleanly* when they need options
* that aren't supported with their current master
@ -1171,7 +1171,8 @@ int spi_setup(struct spi_device *spi)
if (!spi->bits_per_word)
spi->bits_per_word = 8;
status = spi->master->setup(spi);
if (spi->master->setup)
status = spi->master->setup(spi);
dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s"
"%u bits/w, %u Hz max --> %d\n",
@ -1190,6 +1191,7 @@ EXPORT_SYMBOL_GPL(spi_setup);
static int __spi_async(struct spi_device *spi, struct spi_message *message)
{
struct spi_master *master = spi->master;
struct spi_transfer *xfer;
/* Half-duplex links include original MicroWire, and ones with
* only one data pin like SPI_3WIRE (switches direction) or where
@ -1198,7 +1200,6 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message)
*/
if ((master->flags & SPI_MASTER_HALF_DUPLEX)
|| (spi->mode & SPI_3WIRE)) {
struct spi_transfer *xfer;
unsigned flags = master->flags;
list_for_each_entry(xfer, &message->transfers, transfer_list) {
@ -1211,6 +1212,15 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message)
}
}
/**
* Set transfer bits_per_word as spi device default if it is not
* set for this transfer.
*/
list_for_each_entry(xfer, &message->transfers, transfer_list) {
if (!xfer->bits_per_word)
xfer->bits_per_word = spi->bits_per_word;
}
message->spi = spi;
message->status = -EINPROGRESS;
return master->transfer(spi, message);