sunxi: Clean up inclusions of asm/arch/gpio.h

As part of migrating to DM_GPIO and DM_PINCTRL, eventually we will
remove the asm/arch/gpio.h header. In preparation, clean up the various
files that include it.

Some files did not contain any GPIO code at all, so this header was
completely unused.

A few files contained only legacy platform-specific GPIO code for
setting up pin muxes. They were left unchanged, as that code will be
completely removed by the DM_PINCTRL migration.

The remaining files contain some combination of DM_GPIO and legacy GPIO
code. For those, switch to including asm/gpio.h (if it wasn't included
already). Right now, this header provides both sets of functions,
because ARCH_SUNXI selects GPIO_EXTRA_HEADER. This will still be the
right header to include once the DM_GPIO migration is complete and
GPIO_EXTRA_HEADER is no longer needed.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c
index d9b04f7..373cb56 100644
--- a/arch/arm/mach-sunxi/board.c
+++ b/arch/arm/mach-sunxi/board.c
@@ -21,7 +21,6 @@
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/spl.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/timer.h>
diff --git a/arch/arm/mach-sunxi/clock.c b/arch/arm/mach-sunxi/clock.c
index f591aff..de7e875 100644
--- a/arch/arm/mach-sunxi/clock.c
+++ b/arch/arm/mach-sunxi/clock.c
@@ -10,7 +10,6 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/prcm.h>
 #include <asm/arch/gtbus.h>
 #include <asm/arch/sys_proto.h>
diff --git a/arch/arm/mach-sunxi/clock_sun4i.c b/arch/arm/mach-sunxi/clock_sun4i.c
index 57ee018..4716097 100644
--- a/arch/arm/mach-sunxi/clock_sun4i.c
+++ b/arch/arm/mach-sunxi/clock_sun4i.c
@@ -12,7 +12,6 @@
 #include <common.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/sys_proto.h>
 
 #ifdef CONFIG_SPL_BUILD
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index 6ba7bf5..65cb3a6 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -25,7 +25,6 @@
 #include <asm/arch/cpu.h>
 #include <asm/arch/display.h>
 #include <asm/arch/dram.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
 #include <asm/arch/prcm.h>
 #include <asm/arch/spl.h>
diff --git a/board/sunxi/gmac.c b/board/sunxi/gmac.c
index d8fdf772..1fa54ed 100644
--- a/board/sunxi/gmac.c
+++ b/board/sunxi/gmac.c
@@ -4,7 +4,6 @@
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
 
 void eth_init_board(void)
 {
diff --git a/drivers/gpio/axp_gpio.c b/drivers/gpio/axp_gpio.c
index 73058cf..35585dc 100644
--- a/drivers/gpio/axp_gpio.c
+++ b/drivers/gpio/axp_gpio.c
@@ -6,7 +6,6 @@
  */
 
 #include <common.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/pmic_bus.h>
 #include <asm/gpio.h>
 #include <axp_pmic.h>
diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c
index c5d73d0..bf7d82f 100644
--- a/drivers/gpio/sunxi_gpio.c
+++ b/drivers/gpio/sunxi_gpio.c
@@ -14,7 +14,6 @@
 #include <errno.h>
 #include <fdtdec.h>
 #include <malloc.h>
-#include <asm/arch/gpio.h>
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <dm/device-internal.h>
diff --git a/drivers/mmc/sunxi_mmc.c b/drivers/mmc/sunxi_mmc.c
index aaab0cf..c170c16 100644
--- a/drivers/mmc/sunxi_mmc.c
+++ b/drivers/mmc/sunxi_mmc.c
@@ -15,12 +15,11 @@
 #include <mmc.h>
 #include <clk.h>
 #include <reset.h>
+#include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/cpu.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/mmc.h>
-#include <asm-generic/gpio.h>
 #include <linux/delay.h>
 
 #ifndef CCM_MMC_CTRL_MODE_SEL_NEW
diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index a6eb82b..2e24d12 100644
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -14,9 +14,9 @@
 #include <log.h>
 #include <asm/cache.h>
 #include <asm/global_data.h>
+#include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
 #include <common.h>
 #include <clk.h>
 #include <dm.h>
@@ -31,9 +31,6 @@
 #include <reset.h>
 #include <dt-bindings/pinctrl/sun4i-a10.h>
 #include <wait_bit.h>
-#if CONFIG_IS_ENABLED(DM_GPIO)
-#include <asm-generic/gpio.h>
-#endif
 
 #define MDIO_CMD_MII_BUSY		BIT(0)
 #define MDIO_CMD_MII_WRITE		BIT(1)
diff --git a/drivers/power/axp809.c b/drivers/power/axp809.c
index 6323492..0396502 100644
--- a/drivers/power/axp809.c
+++ b/drivers/power/axp809.c
@@ -13,7 +13,6 @@
 #include <common.h>
 #include <command.h>
 #include <errno.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/pmic_bus.h>
 #include <axp_pmic.h>
 
diff --git a/drivers/power/axp818.c b/drivers/power/axp818.c
index 0531707..2dc7364 100644
--- a/drivers/power/axp818.c
+++ b/drivers/power/axp818.c
@@ -13,7 +13,6 @@
 #include <common.h>
 #include <command.h>
 #include <errno.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/pmic_bus.h>
 #include <axp_pmic.h>
 
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c
index fea4105..7e62e3f 100644
--- a/drivers/usb/musb-new/sunxi.c
+++ b/drivers/usb/musb-new/sunxi.c
@@ -25,8 +25,6 @@
 #include <reset.h>
 #include <asm/arch/cpu.h>
 #include <asm/arch/clock.h>
-#include <asm/arch/gpio.h>
-#include <asm-generic/gpio.h>
 #include <dm/device_compat.h>
 #include <dm/lists.h>
 #include <dm/root.h>
diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c
index 4361a58..128888f 100644
--- a/drivers/video/sunxi/sunxi_display.c
+++ b/drivers/video/sunxi/sunxi_display.c
@@ -17,7 +17,6 @@
 
 #include <asm/arch/clock.h>
 #include <asm/arch/display.h>
-#include <asm/arch/gpio.h>
 #include <asm/arch/lcdc.h>
 #include <asm/arch/pwm.h>
 #include <asm/arch/tve.h>
diff --git a/drivers/video/sunxi/sunxi_lcd.c b/drivers/video/sunxi/sunxi_lcd.c
index 7a9eba1..8b9c3b2 100644
--- a/drivers/video/sunxi/sunxi_lcd.c
+++ b/drivers/video/sunxi/sunxi_lcd.c
@@ -15,7 +15,6 @@
 #include <asm/io.h>
 #include <asm/arch/clock.h>
 #include <asm/arch/lcdc.h>
-#include <asm/arch/gpio.h>
 #include <asm/global_data.h>
 #include <asm/gpio.h>