diff --git a/arch/arm/configs/rk2926_m713_defconfig b/arch/arm/configs/rk2926_m713_defconfig
index 7129a42e739a..3279495883c7 100644
--- a/arch/arm/configs/rk2926_m713_defconfig
+++ b/arch/arm/configs/rk2926_m713_defconfig
@@ -248,10 +248,12 @@ CONFIG_GSENSOR_DEVICE=y
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C=y
 # CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
 CONFIG_I2C0_CONTROLLER_RK30=y
 CONFIG_I2C1_CONTROLLER_RK30=y
 CONFIG_I2C2_CONTROLLER_RK30=y
 CONFIG_ADC_RK30=y
+CONFIG_GPIO_SYSFS=y
 CONFIG_EXPANDED_GPIO_NUM=0
 CONFIG_EXPANDED_GPIO_IRQ_NUM=0
 CONFIG_SPI_FPGA_GPIO_NUM=0
@@ -367,6 +369,7 @@ CONFIG_USB_SERIAL_OPTION=y
 CONFIG_USB_GADGET=y
 CONFIG_USB20_HOST=y
 CONFIG_USB20_OTG=y
+CONFIG_DWC_OTG_BOTH_HOST_SLAVE=y
 CONFIG_MMC=y
 CONFIG_MMC_UNSAFE_RESUME=y
 CONFIG_MMC_EMBEDDED_SDIO=y
diff --git a/arch/arm/mach-rk30/board-rk3066b-m701.c b/arch/arm/mach-rk30/board-rk3066b-m701.c
index fb3b4ffc4371..17cd332f1f54 100755
--- a/arch/arm/mach-rk30/board-rk3066b-m701.c
+++ b/arch/arm/mach-rk30/board-rk3066b-m701.c
@@ -246,9 +246,13 @@ static int rk29_backlight_io_deinit(void)
 {
 	int ret = 0;
 #ifdef  LCD_DISP_ON_PIN
+	gpio_direction_output(BL_EN_PIN, 0);
+	gpio_set_value(BL_EN_PIN, !BL_EN_VALUE);
 	gpio_free(BL_EN_PIN);
 #endif
 	rk30_mux_api_set(PWM_MUX_NAME, PWM_MUX_MODE_GPIO);
+	gpio_request(PWM_GPIO, NULL);
+	gpio_direction_output(PWM_GPIO, GPIO_LOW);
 	return ret;
 }