spi: fsi: Convert to fsi bus probe mechanism

The fsi bus got a dedicated probe function. Make use of that. This fixes
a runtime warning about the driver needing to be converted to the bus
probe method.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Eddie James <eajames@linux.ibm.com>
Link: https://patch.msgid.link/fc2a758ef00844dd5bd614a25b36a4a38355d12d.1765279318.git.u.kleine-koenig@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: ukleinek

drivers/spi/spi-fsi.c

@@ -528,13 +528,13 @@ static size_t fsi_spi_max_transfer_size(struct spi_device *spi)
 	return SPI_FSI_MAX_RX_SIZE;
 }
 
-static int fsi_spi_probe(struct device *dev)
+static int fsi_spi_probe(struct fsi_device *fsi)
 {
 	int rc;
 	struct device_node *np;
 	int num_controllers_registered = 0;
 	struct fsi2spi *bridge;
-	struct fsi_device *fsi = to_fsi_dev(dev);
+	struct device *dev = &fsi->dev;
 
 	rc = fsi_spi_check_mux(fsi, dev);
 	if (rc)
@@ -593,9 +593,9 @@ MODULE_DEVICE_TABLE(fsi, fsi_spi_ids);
 
 static struct fsi_driver fsi_spi_driver = {
 	.id_table = fsi_spi_ids,
+	.probe = fsi_spi_probe,
 	.drv = {
 		.name = "spi-fsi",
-		.probe = fsi_spi_probe,
 	},
 };
 module_fsi_driver(fsi_spi_driver);