修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/arch/powerpc/platforms/pseries/of_helpers.c
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@@ -45,14 +45,14 @@
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 int of_read_drc_info_cell(struct property **prop, const __be32 **curval,
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 			struct of_drc_info *data)
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 {
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-	const char *p;
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+	const char *p = (char *)(*curval);
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 	const __be32 *p2;
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 	if (!data)
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 		return -EINVAL;
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 	/* Get drc-type:encode-string */
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-	p = data->drc_type = (char*) (*curval);
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+	data->drc_type = (char *)p;
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 	p = of_prop_next_string(*prop, p);
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 	if (!p)
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 		return -EINVAL;
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@@ -65,9 +65,7 @@
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 	/* Get drc-index-start:encode-int */
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 	p2 = (const __be32 *)p;
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-	p2 = of_prop_next_u32(*prop, p2, &data->drc_index_start);
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-	if (!p2)
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-		return -EINVAL;
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+	data->drc_index_start = be32_to_cpu(*p2);
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 	/* Get drc-name-suffix-start:encode-int */
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 	p2 = of_prop_next_u32(*prop, p2, &data->drc_name_suffix_start);
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@@ -90,7 +88,7 @@
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 		return -EINVAL;
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 	/* Should now know end of current entry */
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-	(*curval) = (void *)p2;
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+	(*curval) = (void *)(++p2);
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 	data->last_drc_index = data->drc_index_start +
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 		((data->num_sequential_elems - 1) * data->sequential_inc);
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