diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-06 11:48:50 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-05-06 11:48:50 +0100 |
| commit | 3086c9f6482101b3c06935cdfb4d4b56adb60097 (patch) | |
| tree | 30b40b82f5f6d26982886a2aea5585cfdb4ac9ef /drivers/spi | |
| parent | c1be5a5b1b355d40e6cf79cc979eb66dafa24ad1 (diff) | |
| parent | 0d2d0cc5216db678070efc911ef47f4cb53b4aad (diff) | |
| download | op-kernel-dev-3086c9f6482101b3c06935cdfb4d4b56adb60097.zip op-kernel-dev-3086c9f6482101b3c06935cdfb4d4b56adb60097.tar.gz | |
Merge branch 'spi/merge' of git://git.secretlab.ca/git/linux into spi-fix-grant
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-atmel.c | 4 | ||||
| -rw-r--r-- | drivers/spi/spi-davinci.c | 2 | ||||
| -rw-r--r-- | drivers/spi/spi.c | 9 |
3 files changed, 9 insertions, 6 deletions
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 656d137..80f5867 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -847,8 +847,8 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg) } /* FIXME implement these protocol options!! */ - if (xfer->speed_hz) { - dev_dbg(&spi->dev, "no protocol options yet\n"); + if (xfer->speed_hz < spi->max_speed_hz) { + dev_dbg(&spi->dev, "can't change speed in transfer\n"); return -ENOPROTOOPT; } diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c index 8234d22..6287c83 100644 --- a/drivers/spi/spi-davinci.c +++ b/drivers/spi/spi-davinci.c @@ -784,7 +784,7 @@ static const struct of_device_id davinci_spi_of_match[] = { }, { }, }; -MODULE_DEVICE_TABLE(of, davini_spi_of_match); +MODULE_DEVICE_TABLE(of, davinci_spi_of_match); /** * spi_davinci_get_pdata - Get platform data from DTS binding diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 004b10f..3738e7c 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -334,7 +334,7 @@ struct spi_device *spi_alloc_device(struct spi_master *master) spi->dev.parent = &master->dev; spi->dev.bus = &spi_bus_type; spi->dev.release = spidev_release; - spi->cs_gpio = -EINVAL; + spi->cs_gpio = -ENOENT; device_initialize(&spi->dev); return spi; } @@ -1067,8 +1067,11 @@ static int of_spi_register_master(struct spi_master *master) nb = of_gpio_named_count(np, "cs-gpios"); master->num_chipselect = max(nb, (int)master->num_chipselect); - if (nb < 1) + /* Return error only for an incorrectly formed cs-gpios property */ + if (nb == 0 || nb == -ENOENT) return 0; + else if (nb < 0) + return nb; cs = devm_kzalloc(&master->dev, sizeof(int) * master->num_chipselect, @@ -1079,7 +1082,7 @@ static int of_spi_register_master(struct spi_master *master) return -ENOMEM; for (i = 0; i < master->num_chipselect; i++) - cs[i] = -EINVAL; + cs[i] = -ENOENT; for (i = 0; i < nb; i++) cs[i] = of_get_named_gpio(np, "cs-gpios", i); |
