pwm: Move PUV3 PWM driver to PWM framework

This commit moves the driver to drivers/pwm and converts it to the new
PWM framework.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Tested-by: Qin Rui <qinrui@mprc.pku.edu.cn>
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 99a7381..d954c72 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -1,6 +1,6 @@
 menuconfig PWM
 	bool "Pulse-Width Modulation (PWM) Support"
-	depends on !MACH_JZ4740 && !PUV3_PWM
+	depends on !MACH_JZ4740
 	help
 	  Generic Pulse-Width Modulation (PWM) support.
 
@@ -76,6 +76,15 @@
 	  To compile this driver as a module, choose M here: the module
 	  will be called pwm-mxs.
 
+config PWM_PUV3
+	tristate "PKUnity NetBook-0916 PWM support"
+	depends on ARCH_PUV3
+	help
+	  Generic PWM framework driver for PKUnity NetBook-0916.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called pwm-puv3.
+
 config PWM_PXA
 	tristate "PXA PWM support"
 	depends on ARCH_PXA