修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/pseries/ibmebus.c
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@@ -40,13 +40,14 @@
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 #include <linux/export.h>
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 #include <linux/console.h>
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 #include <linux/kobject.h>
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-#include <linux/dma-mapping.h>
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+#include <linux/dma-map-ops.h>
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 #include <linux/interrupt.h>
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 #include <linux/of.h>
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 #include <linux/slab.h>
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 #include <linux/stat.h>
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 #include <linux/of_platform.h>
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 #include <asm/ibmebus.h>
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+#include <asm/machdep.h>
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 static struct device ibmebus_bus_device = { /* fake "parent" device */
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 	.init_name = "ibmebus",
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@@ -147,13 +148,13 @@
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 	.unmap_page         = ibmebus_unmap_page,
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 };
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-static int ibmebus_match_path(struct device *dev, void *data)
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+static int ibmebus_match_path(struct device *dev, const void *data)
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 {
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 	struct device_node *dn = to_platform_device(dev)->dev.of_node;
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 	return (of_find_node_by_path(data) == dn);
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 }
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-static int ibmebus_match_node(struct device *dev, void *data)
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+static int ibmebus_match_node(struct device *dev, const void *data)
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 {
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 	return to_platform_device(dev)->dev.of_node == data;
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 }
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@@ -261,8 +262,7 @@
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 	return out;
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 }
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-static ssize_t ibmebus_store_probe(struct bus_type *bus,
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-				   const char *buf, size_t count)
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+static ssize_t probe_store(struct bus_type *bus, const char *buf, size_t count)
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 {
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 	struct device_node *dn = NULL;
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 	struct device *dev;
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@@ -298,10 +298,9 @@
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 		return rc;
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 	return count;
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 }
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-static BUS_ATTR(probe, 0200, NULL, ibmebus_store_probe);
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+static BUS_ATTR_WO(probe);
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-static ssize_t ibmebus_store_remove(struct bus_type *bus,
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-				    const char *buf, size_t count)
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+static ssize_t remove_store(struct bus_type *bus, const char *buf, size_t count)
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 {
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 	struct device *dev;
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 	char *path;
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@@ -325,7 +324,7 @@
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 		return -ENODEV;
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 	}
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 }
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-static BUS_ATTR(remove, 0200, NULL, ibmebus_store_remove);
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+static BUS_ATTR_WO(remove);
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 static struct attribute *ibmbus_bus_attrs[] = {
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 	&bus_attr_probe.attr,
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@@ -404,7 +403,7 @@
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 	struct platform_device *ofdev;
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 	ofdev = to_platform_device(dev);
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-	return sprintf(buf, "%s\n", ofdev->dev.of_node->name);
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+	return sprintf(buf, "%pOFn\n", ofdev->dev.of_node);
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 }
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 static DEVICE_ATTR_RO(name);
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@@ -452,6 +451,7 @@
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 	if (err) {
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 		printk(KERN_WARNING "%s: device_register returned %i\n",
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 		       __func__, err);
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+		put_device(&ibmebus_bus_device);
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 		bus_unregister(&ibmebus_bus_type);
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 		return err;
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@@ -466,4 +466,4 @@
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 	return 0;
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 }
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-postcore_initcall(ibmebus_bus_init);
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+machine_postcore_initcall(pseries, ibmebus_bus_init);