Hi,
I'm trying to use the drivers/spi/mpc52xx_psc_spi.c as an open firmware device
(ARCH=powerpc). This device needs some platform specific data (the devices
connected to the SPI bus and how to drive the chipselects to these devices).
The driver itself get a "struct of_device *op" in his probe function and
does something like this:
struct fsl_spi_platform_data *pdata = op->dev.platform_data;
My question is: How is the correct way to bring the platform specific data
into this device structure? Is there a way to do it in the OFTree (dts file)?
Or in a way like this?
static struct fsl_spi_platform_data my_spi_master_info = {
[....]
}
static int __init my_platform_register_spi(void)
{
struct device_node *np = NULL;
struct of_device *of_dev;
if ((np = of_find_compatible_node(np, "spi", "mpc5200-psc-spi")) ==
NULL) {
printk("couldn't find of tree node\n");
return -1;
}
if ((of_dev = of_find_device_by_node(np)) == NULL) {
printk("couldn't find device by node\n");
return -1;
}
of_dev->dev.platform_data = &my_spi_master_info;
return 0;
}
Or is there any other way?
Regards
Juergen
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