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[2/4] platform device: introduce helper macro initcall_platform_driver()

Message ID 1380518035-5319-3-git-send-email-hanjun.guo@linaro.org
State New
Headers show

Commit Message

Hanjun Guo Sept. 30, 2013, 5:13 a.m. UTC 
Introduce a helper macro initcall_platform_driver() which based on
initcall_driver() for platform driver to eliminate boilerplate code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
---
 include/linux/platform_device.h |   11 +++++++++++
 1 file changed, 11 insertions(+)
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Patch

diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index ce8e4ff..0f37f9d 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -218,6 +218,17 @@  static inline void platform_set_drvdata(struct platform_device *pdev,
 	module_driver(__platform_driver, platform_driver_register, \
 			platform_driver_unregister)
 
+/* initcall_platform_driver() - Helper macro for drivers that don't do
+ * anything special in build-in module xxx_initcall/exit. This eliminates
+ * a lot of boilerplate. Each driver may only use this macro once, and
+ * calling it replaces xxx_initcall() and module_exit()
+ * @__type: initcall type
+ * @__platform_driver: platform driver struct
+ */
+#define initcall_platform_driver(__type, __platform_driver) \
+	initcall_driver(__type, __platform_driver, platform_driver_register, \
+			latform_driver_unregister)
+
 /* module_platform_driver_probe() - Helper macro for drivers that don't do
  * anything special in module init/exit.  This eliminates a lot of
  * boilerplate.  Each module may only use this macro once, and