static void au1550_spi_bits_handlers_set(struct au1550_spi *hw, int bpw);
-/**
+/*
* compute BRG and DIV bits to setup spi clock based on main input clock rate
* that was specified in platform data structure
* according to au1550 datasheet:
return 0;
}
+/* the spi->mode bits understood by this driver: */
+#define MODEBITS (SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST)
+
static int au1550_spi_setup(struct spi_device *spi)
{
struct au1550_spi *hw = spi_master_get_devdata(spi->master);
return -EINVAL;
}
+ if (spi->mode & ~MODEBITS) {
+ dev_dbg(&spi->dev, "setup: unsupported mode bits %x\n",
+ spi->mode & ~MODEBITS);
+ return -EINVAL;
+ }
+
if (spi->max_speed_hz == 0)
spi->max_speed_hz = hw->freq_max;
if (spi->max_speed_hz > hw->freq_max
return hw->txrx_bufs(spi, t);
}
-static irqreturn_t au1550_spi_irq(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t au1550_spi_irq(int irq, void *dev)
{
struct au1550_spi *hw = dev;
return hw->irq_callback(hw);
return 0;
}
+/* work with hotplug and coldplug */
+MODULE_ALIAS("platform:au1550-spi");
+
static struct platform_driver au1550_spi_drv = {
.remove = __exit_p(au1550_spi_remove),
.driver = {