change system file

hc

2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771

 kernel/drivers/bus/fsl-mc/mc-io.c
..
..
@@ -82,7 +82,7 @@
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 	mc_io->portal_phys_addr = mc_portal_phys_addr;
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 	mc_io->portal_size = mc_portal_size;
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 	if (flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)
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-		spin_lock_init(&mc_io->spinlock);
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+		raw_spin_lock_init(&mc_io->spinlock);
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 	else
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 		mutex_init(&mc_io->mutex);
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..
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@@ -97,12 +97,12 @@
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 		return -EBUSY;
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 	}
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-	mc_portal_virt_addr = devm_ioremap_nocache(dev,
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+	mc_portal_virt_addr = devm_ioremap(dev,
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 						   mc_portal_phys_addr,
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 						   mc_portal_size);
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 	if (!mc_portal_virt_addr) {
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 		dev_err(dev,
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-			"devm_ioremap_nocache failed for MC portal %pa\n",
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+			"devm_ioremap failed for MC portal %pa\n",
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 			&mc_portal_phys_addr);
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 		return -ENXIO;
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 	}
..
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@@ -214,9 +214,19 @@
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 	if (error < 0)
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 		goto error_cleanup_resource;
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+	dpmcp_dev->consumer_link = device_link_add(&mc_dev->dev,
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+						   &dpmcp_dev->dev,
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+						   DL_FLAG_AUTOREMOVE_CONSUMER);
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+	if (!dpmcp_dev->consumer_link) {
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+		error = -EINVAL;
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+		goto error_cleanup_mc_io;
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+	}
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+
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 	*new_mc_io = mc_io;
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 	return 0;
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+error_cleanup_mc_io:
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+	fsl_destroy_mc_io(mc_io);
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 error_cleanup_resource:
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 	fsl_mc_resource_free(resource);
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 	return error;
..
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@@ -249,6 +259,8 @@
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 	fsl_destroy_mc_io(mc_io);
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 	fsl_mc_resource_free(resource);
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+
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+	dpmcp_dev->consumer_link = NULL;
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 }
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 EXPORT_SYMBOL_GPL(fsl_mc_portal_free);
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