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38 lines
875 B
Diff
38 lines
875 B
Diff
--- a/arch/mips/bcm63xx/boards/board_common.c
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+++ b/arch/mips/bcm63xx/boards/board_common.c
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@@ -143,6 +143,18 @@ void __init device_tree_init(void)
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unflatten_and_copy_device_tree();
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}
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+
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+int board_of_device_present(const char *alias)
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+{
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+ bool present;
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+ struct device_node *np;
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+
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+ np = of_find_node_by_path(alias);
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+ present = of_device_is_available(np);
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+ of_node_put(np);
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+
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+ return present;
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+}
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#endif
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static struct gpio_led_platform_data bcm63xx_led_data;
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--- a/arch/mips/bcm63xx/boards/board_common.h
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+++ b/arch/mips/bcm63xx/boards/board_common.h
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@@ -15,4 +15,13 @@ void board_bcm963xx_init(void);
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static inline void board_bcm963xx_init(void) { }
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#endif
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+#if defined(CONFIG_OF)
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+int board_of_device_present(const char *alias);
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+#else
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+static inline void board_of_device_present(const char *alias)
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+{
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+ return 0;
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+}
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+#endif
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+
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#endif /* __BOARD_COMMON_H */
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