fpga: fpga-mgr: altera-pr-ip: Simplify registration

Simplify registration using new devm_fpga_mgr_register() API.

Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20201115195127.284487-11-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/fpga/altera-pr-ip-core-plat.c

@@ -28,15 +28,6 @@ static int alt_pr_platform_probe(struct platform_device *pdev)
 	return alt_pr_register(dev, reg_base);
 }
 
-static int alt_pr_platform_remove(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-
-	alt_pr_unregister(dev);
-
-	return 0;
-}
-
 static const struct of_device_id alt_pr_of_match[] = {
 	{ .compatible = "altr,a10-pr-ip", },
 	{},
@@ -46,7 +37,6 @@ MODULE_DEVICE_TABLE(of, alt_pr_of_match);
 
 static struct platform_driver alt_pr_platform_driver = {
 	.probe = alt_pr_platform_probe,
-	.remove = alt_pr_platform_remove,
 	.driver = {
 		.name	= "alt_a10_pr_ip",
 		.of_match_table = alt_pr_of_match,

drivers/fpga/altera-pr-ip-core.c

@@ -195,9 +195,7 @@ int alt_pr_register(struct device *dev, void __iomem *reg_base)
 	if (!mgr)
 		return -ENOMEM;
 
-	dev_set_drvdata(dev, mgr);
-
-	return fpga_mgr_register(mgr);
+	return devm_fpga_mgr_register(dev, mgr);
 }
 EXPORT_SYMBOL_GPL(alt_pr_register);