p977: support 5v en power control for otg and hdmi

arch/arm/boot/dts/rk3288-p977.dts

@@ -8,6 +8,13 @@
 		status = "okay";
 	};
 
+	5v_power_en {
+        compatible = "5v_en";
+		5ven,pin =<&gpio7 GPIO_B4 GPIO_ACTIVE_HIGH>;	// 5v power for otg and hdmi
+		status = "okay";	
+	};
+
+
     wireless-wlan {
         compatible = "wlan-platdata";
 
@@ -223,7 +230,7 @@
 };
 
 &spi1 {
-	status = "okay";
+	status = "disabled";
 	max-freq = <48000000>;
 	/*
 	spi_test@10 {

drivers/misc/Kconfig

@@ -531,6 +531,14 @@ config SRAM
 	  the genalloc API. It is supposed to be used for small on-chip SRAM
 	  areas found on many SoCs.
 
+config 5V_EN
+	bool "5v en power control for otg and hdmi"
+	default y
+	help
+	  This driver is control enable 5v power when startup and disable it
+	  when suspend and no insert otg. if your board is control this power
+	  by a gpio please select it. 
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"

drivers/misc/Makefile

@@ -55,3 +55,5 @@ obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
 obj-y += inv_mpu/
 obj-$(CONFIG_SRAM)		+= sram.o
+
+obj-$(CONFIG_5V_EN)	+= 5v_en.o