drivers: hierarchize drivers Kconfig menu

The menuconfig for drivers are getting more and more cluttered
and unreadable because too many entries are displayed in a single
flat menu.  Use hierarchic menu for each category.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Update to apply again in a few places, drop USB hunk]
Signed-off-by: Tom Rini <trini@konsulko.com>

drivers/core/Kconfig

@@ -1,3 +1,5 @@
+menu "Generic Driver Options"
+
 config DM
 	bool "Enable Driver Model"
 	help
@@ -102,3 +104,5 @@ config DEBUG_DEVRES
 	  debug resource management for a managed device.
 
 	  If you are unsure about this, Say N here.
+
+endmenu

drivers/crypto/Kconfig

@@ -1 +1,5 @@
+menu "Hardware crypto devices"
+
 source drivers/crypto/fsl/Kconfig
+
+endmenu

drivers/demo/Kconfig

@@ -1,3 +1,5 @@
+menu "Demo for driver model"
+
 config DM_DEMO
 	bool "Enable demo uclass support"
 	depends on DM
@@ -24,3 +26,5 @@ config DM_DEMO_SHAPE
 	  a shape when the 'demo hello' command is executed which targets
 	  this device. It can be used to help understand how driver model
 	  works.
+
+endmenu

drivers/gpio/Kconfig

@@ -1,3 +1,9 @@
+#
+# GPIO infrastructure and drivers
+#
+
+menu "GPIO Support"
+
 config DM_GPIO
 	bool "Enable Driver Model for GPIO drivers"
 	depends on DM
@@ -42,3 +48,5 @@ config VYBRID_GPIO
 	default n
 	help
 	  Say yes here to support Vybrid vf610 GPIOs.
+
+endmenu

drivers/i2c/Kconfig

@@ -1,3 +1,9 @@
+#
+# I2C subsystem configuration
+#
+
+menu "I2C support"
+
 config DM_I2C
 	bool "Enable Driver Model for I2C drivers"
 	depends on DM
@@ -99,3 +105,5 @@ config SYS_I2C_UNIPHIER_F
 	  This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.
 
 source "drivers/i2c/muxes/Kconfig"
+
+endmenu

drivers/led/Kconfig

@@ -1,3 +1,5 @@
+menu "LED Support"
+
 config LED
 	bool "Enable LED support"
 	depends on DM
@@ -24,3 +26,5 @@ config LED_GPIO
 	  GPIOs may be on the SoC or some other device which provides GPIOs.
 	  The GPIO driver must used driver model. LEDs are configured using
 	  the device tree.
+
+endmenu

drivers/misc/Kconfig

@@ -1,3 +1,9 @@
+#
+# Multifunction miscellaneous devices
+#
+
+menu "Multifunction device drivers"
+
 config CMD_CROS_EC
 	bool "Enable crosec command"
 	depends on CROS_EC
@@ -82,3 +88,5 @@ config RESET
 	  Each driver can provide a reset method which will be called to
 	  effect a reset. The uclass will try all available drivers when
 	  reset_walk() is called.
+
+endmenu

drivers/rtc/Kconfig

@@ -1,3 +1,9 @@
+#
+# RTC drivers configuration
+#
+
+menu "Real Time Clock"
+
 config DM_RTC
 	bool "Enable Driver Model for RTC drivers"
 	depends on DM
@@ -6,3 +12,5 @@ config DM_RTC
 	  then provides the rtc_get()/rtc_set() interface, delegating to
 	  drivers to perform the actual functions. See rtc.h for a
 	  description of the API.
+
+endmenu

drivers/serial/Kconfig

@@ -1,3 +1,9 @@
+#
+# Serial device configuration
+#
+
+menu "Serial drivers"
+
 config REQUIRE_SERIAL_CONSOLE
 	bool "Require a serial port for console"
 	# Running without a serial console is not supported by the
@@ -139,3 +145,5 @@ config X86_SERIAL
 	  enabled in the device tree with the correct input clock frequency
 	  provided (default 1843200). Enable this to obtain serial console
 	  output.
+
+endmenu

drivers/sound/Kconfig

@@ -1,3 +1,5 @@
+menu "Sound support"
+
 config SOUND
 	bool "Enable sound support"
 	help
@@ -53,3 +55,5 @@ config SOUND_WM8994
 	  Enable the wm8994 audio codec. This is connected via I2S for
 	  audio data and I2C for codec control. At present it only works
 	  with the Samsung I2S driver.
+
+endmenu

drivers/video/Kconfig

@@ -1,3 +1,9 @@
+#
+# Video configuration
+#
+
+menu "Graphics support"
+
 config VIDEO_VESA
 	bool "Enable VESA video driver support"
 	default n
@@ -242,3 +248,5 @@ config VIDEO_TEGRA124
 	   have an eDP display connected.
 
 source "drivers/video/bridge/Kconfig"
+
+endmenu