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OpenCloudOS-Kernel
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Merge remote-tracking branch 'spi/topic/core' into spi-next

This commit is contained in:
Mark Brown 2015-11-04 11:02:02 +00:00
parent 5ba838c97b 243f07be24
commit 3e7018def4
1 changed files with 15 additions and 8 deletions
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23
drivers/spi/spi.c
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@ -270,15 +270,24 @@ EXPORT_SYMBOL_GPL(spi_bus_type);
static int spi_drv_probe(struct device *dev)
{
const struct spi_driver *sdrv = to_spi_driver(dev->driver);
struct spi_device *spi = to_spi_device(dev);
int ret;
ret = of_clk_set_defaults(dev->of_node, false);
if (ret)
return ret;
if (dev->of_node) {
spi->irq = of_irq_get(dev->of_node, 0);
if (spi->irq == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (spi->irq < 0)
spi->irq = 0;
}
ret = dev_pm_domain_attach(dev, true);
if (ret != -EPROBE_DEFER) {
ret = sdrv->probe(to_spi_device(dev));
ret = sdrv->probe(spi);
if (ret)
dev_pm_domain_detach(dev, true);
}
@ -597,7 +606,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable)
if (spi->mode & SPI_CS_HIGH)
enable = !enable;
if (spi->cs_gpio >= 0)
if (gpio_is_valid(spi->cs_gpio))
gpio_set_value(spi->cs_gpio, !enable);
else if (spi->master->set_cs)
spi->master->set_cs(spi, !enable);
@ -1433,9 +1442,6 @@ of_register_spi_device(struct spi_master *master, struct device_node *nc)
}
spi->max_speed_hz = value;
/* IRQ */
spi->irq = irq_of_parse_and_map(nc, 0);
/* Store a pointer to the node in the device structure */
of_node_get(nc);
spi->dev.of_node = nc;
@ -1949,7 +1955,7 @@ static int __spi_validate_bits_per_word(struct spi_master *master, u8 bits_per_w
int spi_setup(struct spi_device *spi)
{
unsigned bad_bits, ugly_bits;
int status = 0;
int status;
/* check mode to prevent that DUAL and QUAD set at the same time
*/
@ -1986,8 +1992,9 @@ int spi_setup(struct spi_device *spi)
if (!spi->bits_per_word)
spi->bits_per_word = 8;
if (__spi_validate_bits_per_word(spi->master, spi->bits_per_word))
return -EINVAL;
status = __spi_validate_bits_per_word(spi->master, spi->bits_per_word);
if (status)
return status;
if (!spi->max_speed_hz)
spi->max_speed_hz = spi->master->max_speed_hz;