spi: mpfs: fix controller deregistration

Make sure to deregister the controller before disabling underlying
resources like interrupts during driver unbind.

Fixes: 9ac8d17 ("spi: add support for microchip fpga spi controllers")
Cc: stable@vger.kernel.org	# 6.0
Cc: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260409120419.388546-21-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: jhovold

drivers/spi/spi-mpfs.c

@@ -574,7 +574,7 @@ static int mpfs_spi_probe(struct platform_device *pdev)
 
 	mpfs_spi_init(host, spi);
 
-	ret = devm_spi_register_controller(&pdev->dev, host);
+	ret = spi_register_controller(host);
 	if (ret) {
 		mpfs_spi_disable_ints(spi);
 		mpfs_spi_disable(spi);
@@ -592,6 +592,8 @@ static void mpfs_spi_remove(struct platform_device *pdev)
 	struct spi_controller *host  = platform_get_drvdata(pdev);
 	struct mpfs_spi *spi = spi_controller_get_devdata(host);
 
+	spi_unregister_controller(host);
+
 	mpfs_spi_disable_ints(spi);
 	mpfs_spi_disable(spi);
 }