[PATCH 2/3] usb: phy: generic: use forward declarations instead of #includes

[Bjorn Helgaas]

In drivers/usb/phy/phy-generic.h, use forward declarations for struct
regulator and struct gpio_desc instead of including
linux/regulator/consumer.h and linux/gpio/consumer.h.

phy-generic.c is included three places (phy-am335x.c, phy-generic.c,
phy-keystone.c).  Of these, phy-am335x.c and phy-generic.c already include
regulator/consumer.h and phy-keystone.c doesn't need it; only phy-generic.c
uses gpiod_*() interfaces, and it already includes gpio/consumer.h.

This is a little more efficient and ensures that users of the regulator and
gpio interfaces include the relevant header files directly rather than
accidentally getting them via drivers/usb/phy/phy-generic.h.

Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
---
 drivers/usb/phy/phy-generic.h |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h
index 0d0eadd..cc4f1bd 100644
--- a/drivers/usb/phy/phy-generic.h
+++ b/drivers/usb/phy/phy-generic.h
@@ -2,8 +2,9 @@
 #define _PHY_GENERIC_H_
 
 #include <linux/usb/usb_phy_generic.h>
-#include <linux/gpio/consumer.h>
-#include <linux/regulator/consumer.h>
+
+struct regulator;
+struct gpio_desc;
 
 struct usb_phy_generic {
 	struct usb_phy phy;