There is this description in this page software-dl.ti.com/.../SPI.html .
There is this souce code in $kernel/drivers/spi/spi-omap2-mcspi.c .
static int omap2_mcspi_probe(struct platform_device *pdev)
{
struct spi_master *master;
const struct omap2_mcspi_platform_config *pdata;
struct omap2_mcspi *mcspi;
struct resource *r;
int status = 0, i;
u32 regs_offset = 0;
struct device_node *node = pdev->dev.of_node;
const struct of_device_id *match;
if (of_property_read_bool(node, "spi-slave"))
master = spi_alloc_slave(&pdev->dev, sizeof(*mcspi));
else
master = spi_alloc_master(&pdev->dev, sizeof(*mcspi));
if (!master)
return -ENOMEM;
There is this document in $kernel/Documentation/devicetree/bindings/spi/spi-controller.yaml .
spi-slave:
$ref: /schemas/types.yaml#/definitions/flag
description:
The SPI controller acts as a slave, instead of a master.
I'd like to know whether SPI slave mode is suppoted by spi-omap2-mcspi.c, or not. Could you teach me that ?
