diff options
| author | Mark Brown <broonie@linaro.org> | 2013-09-01 12:49:07 (GMT) |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-09-01 12:49:07 (GMT) |
| commit | 278ac33bbd8b3ff70f9518665c892c1b6f5625b7 (patch) | |
| tree | 5a5a1e6d7ae2d4105774c55d9c5cd0ee25bd6ce1 /drivers/spi/spi.c | |
| parent | 85cac431329bd09f7d30d489591d7af0d658b008 (diff) | |
| parent | a110f93d8b4672c4ad18d911f62b9e861010e83b (diff) | |
| download | linux-278ac33bbd8b3ff70f9518665c892c1b6f5625b7.tar.xz | |
Merge remote-tracking branch 'spi/topic/quad' into spi-next
Diffstat (limited to 'drivers/spi/spi.c')
| -rw-r--r-- | drivers/spi/spi.c | 77 |
1 files changed, 37 insertions, 40 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 6ef349f..9e039c6 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -886,48 +886,44 @@ static void of_register_spi_devices(struct spi_master *master) spi->mode |= SPI_3WIRE; /* Device DUAL/QUAD mode */ - prop = of_get_property(nc, "spi-tx-nbits", &len); - if (!prop || len < sizeof(*prop)) { - dev_err(&master->dev, "%s has no 'spi-tx-nbits' property\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - switch (be32_to_cpup(prop)) { - case SPI_NBITS_SINGLE: - break; - case SPI_NBITS_DUAL: - spi->mode |= SPI_TX_DUAL; - break; - case SPI_NBITS_QUAD: - spi->mode |= SPI_TX_QUAD; - break; - default: - dev_err(&master->dev, "spi-tx-nbits value is not supported\n"); - spi_dev_put(spi); - continue; + prop = of_get_property(nc, "spi-tx-bus-width", &len); + if (prop && len == sizeof(*prop)) { + switch (be32_to_cpup(prop)) { + case SPI_NBITS_SINGLE: + break; + case SPI_NBITS_DUAL: + spi->mode |= SPI_TX_DUAL; + break; + case SPI_NBITS_QUAD: + spi->mode |= SPI_TX_QUAD; + break; + default: + dev_err(&master->dev, + "spi-tx-bus-width %d not supported\n", + be32_to_cpup(prop)); + spi_dev_put(spi); + continue; + } } - prop = of_get_property(nc, "spi-rx-nbits", &len); - if (!prop || len < sizeof(*prop)) { - dev_err(&master->dev, "%s has no 'spi-rx-nbits' property\n", - nc->full_name); - spi_dev_put(spi); - continue; - } - switch (be32_to_cpup(prop)) { - case SPI_NBITS_SINGLE: - break; - case SPI_NBITS_DUAL: - spi->mode |= SPI_RX_DUAL; - break; - case SPI_NBITS_QUAD: - spi->mode |= SPI_RX_QUAD; - break; - default: - dev_err(&master->dev, "spi-rx-nbits value is not supported\n"); - spi_dev_put(spi); - continue; + prop = of_get_property(nc, "spi-rx-bus-width", &len); + if (prop && len == sizeof(*prop)) { + switch (be32_to_cpup(prop)) { + case SPI_NBITS_SINGLE: + break; + case SPI_NBITS_DUAL: + spi->mode |= SPI_RX_DUAL; + break; + case SPI_NBITS_QUAD: + spi->mode |= SPI_RX_QUAD; + break; + default: + dev_err(&master->dev, + "spi-rx-bus-width %d not supported\n", + be32_to_cpup(prop)); + spi_dev_put(spi); + continue; + } } /* Device speed */ @@ -1480,6 +1476,7 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message) return -EINVAL; if (xfer->speed_hz && master->max_speed_hz && xfer->speed_hz > master->max_speed_hz) + return -EINVAL; if (xfer->tx_buf && !xfer->tx_nbits) xfer->tx_nbits = SPI_NBITS_SINGLE; |