power: reset: xgene-reboot: Use devm_platform_ioremap_resource() helper

Use device life-cycle managed ioremap function to simplify probe and
exit paths.

While here add __iomem to the returned pointer to fix a sparse warning.

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20240212162831.67838-4-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/drivers/power/reset/xgene-reboot.c b/drivers/power/reset/xgene-reboot.c
index c2e5a99940d3754c6625d8033c905aed64abd6fe..6b545a83d88897be8c32a17749aacc5ca47170cf 100644 (file)
--- a/drivers/power/reset/xgene-reboot.c
+++ b/drivers/power/reset/xgene-reboot.c
@@ -22,7 +22,7 @@
 
 struct xgene_reboot_context {
        struct device *dev;
-       void *csr;
+       void __iomem *csr;
        u32 mask;
        struct notifier_block restart_handler;
 };
@@ -54,7 +54,7 @@ static int xgene_reboot_probe(struct platform_device *pdev)
        if (!ctx)
                return -ENOMEM;
 
-       ctx->csr = of_iomap(dev->of_node, 0);
+       ctx->csr = devm_platform_ioremap_resource(pdev, 0);
        if (!ctx->csr) {
                dev_err(dev, "can not map resource\n");
                return -ENODEV;
@@ -67,10 +67,8 @@ static int xgene_reboot_probe(struct platform_device *pdev)
        ctx->restart_handler.notifier_call = xgene_restart_handler;
        ctx->restart_handler.priority = 128;
        err = register_restart_handler(&ctx->restart_handler);
-       if (err) {
-               iounmap(ctx->csr);
+       if (err)
                dev_err(dev, "cannot register restart handler (err=%d)\n", err);
-       }
 
        return err;
 }