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Message-Id: <20190902095309.18574-6-enric.balletbo@collabora.com>
Date:   Mon,  2 Sep 2019 11:53:04 +0200
From:   Enric Balletbo i Serra <enric.balletbo@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     Jonathan Corbet <corbet@....net>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Will Deacon <will.deacon@....com>,
        MyungJoo Ham <myungjoo.ham@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Sebastian Reichel <sre@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Collabora kernel ML <kernel@...labora.com>, arnd@...db.de,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Gwendal Grignou <gwendal@...omium.org>
Subject: [PATCH v7 05/10] mfd / platform: cros_ec: Rename config to a better name

The cros-ec-dev is a multifunction device that now doesn't implement any
chardev communication interface. MFD_CROS_EC_CHARDEV doesn't look
a good name to describe that device and can cause confusion. Hence
rename it to CROS_EC_DEV.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@...labora.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Gwendal Grignou <gwendal@...omium.org>
Tested-by: Gwendal Grignou <gwendal@...omium.org>
Acked-for-MFD-by: Lee Jones <lee.jones@...aro.org>
---

Changes in v7:
- Add a transitional config option to help bisectability (Arnd, Lee)

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/mfd/Kconfig             | 17 ++++++++++-------
 drivers/mfd/Makefile            |  2 +-
 drivers/platform/chrome/Kconfig | 32 +++++++++++++++++++++-----------
 3 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1079aff13f54..5a2590bf05e4 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -211,15 +211,18 @@ config MFD_AXP20X_RSB
 	  components like regulators or the PEK (Power Enable Key) under the
 	  corresponding menus.
 
-config MFD_CROS_EC_CHARDEV
-	tristate "Chrome OS Embedded Controller userspace device interface"
-	depends on CROS_EC
+config MFD_CROS_EC_DEV
+	tristate "ChromeOS Embedded Controller multifunction device"
 	select MFD_CORE
-	---help---
-	  This driver adds support to talk with the ChromeOS EC from userspace.
+	depends on CROS_EC
+	default CROS_EC
+	help
+	  Select this to get support for ChromeOS Embedded Controller
+	  sub-devices. This driver will instantiate additional drivers such
+	  as RTC, USBPD, etc. but you have to select the individual drivers.
 
-	  If you have a supported Chromebook, choose Y or M here.
-	  The module will be called cros_ec_dev.
+	  To compile this driver as a module, choose M here: the module will be
+	  called cros-ec-dev.
 
 config MFD_MADERA
 	tristate "Cirrus Logic Madera codecs"
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b7ea093dd097..331beadaec36 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -13,7 +13,7 @@ obj-$(CONFIG_MFD_ASIC3)		+= asic3.o tmio_core.o
 obj-$(CONFIG_ARCH_BCM2835)	+= bcm2835-pm.o
 obj-$(CONFIG_MFD_BCM590XX)	+= bcm590xx.o
 obj-$(CONFIG_MFD_BD9571MWV)	+= bd9571mwv.o
-obj-$(CONFIG_MFD_CROS_EC_CHARDEV) += cros_ec_dev.o
+obj-$(CONFIG_MFD_CROS_EC_DEV)	+= cros_ec_dev.o
 obj-$(CONFIG_MFD_EXYNOS_LPASS)	+= exynos-lpass.o
 
 obj-$(CONFIG_HTC_PASIC3)	+= htc-pasic3.o
diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index bd3524bd6b37..ee5f08ea57b6 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -3,6 +3,16 @@
 # Platform support for Chrome OS hardware (Chromebooks and Chromeboxes)
 #
 
+config MFD_CROS_EC
+	tristate "Platform support for Chrome hardware (transitional)"
+	select CHROME_PLATFORMS
+	select CROS_EC
+	select CONFIG_MFD_CROS_EC_DEV
+	depends on X86 || ARM || ARM64 || COMPILE_TEST
+	help
+	  This is a transitional Kconfig option and will be removed after
+	  everyone enables the parts individually.
+
 menuconfig CHROME_PLATFORMS
 	bool "Platform support for Chrome hardware"
 	depends on X86 || ARM || ARM64 || COMPILE_TEST
@@ -87,7 +97,7 @@ config CROS_EC_RPMSG
 
 config CROS_EC_ISHTP
 	tristate "ChromeOS Embedded Controller (ISHTP)"
-	depends on MFD_CROS_EC
+	depends on CROS_EC
 	depends on INTEL_ISH_HID
 	help
 	  If you say Y here, you get support for talking to the ChromeOS EC
@@ -138,8 +148,8 @@ config CROS_KBD_LED_BACKLIGHT
 
 config CROS_EC_CHARDEV
 	tristate "ChromeOS EC miscdevice"
-	depends on MFD_CROS_EC_CHARDEV
-	default MFD_CROS_EC_CHARDEV
+	depends on MFD_CROS_EC_DEV
+	default MFD_CROS_EC_DEV
 	help
 	  This driver adds file operations support to talk with the
 	  ChromeOS EC from userspace via a character device.
@@ -149,8 +159,8 @@ config CROS_EC_CHARDEV
 
 config CROS_EC_LIGHTBAR
 	tristate "Chromebook Pixel's lightbar support"
-	depends on MFD_CROS_EC_CHARDEV
-	default MFD_CROS_EC_CHARDEV
+	depends on MFD_CROS_EC_DEV
+	default MFD_CROS_EC_DEV
 	help
 	  This option exposes the Chromebook Pixel's lightbar to
 	  userspace.
@@ -160,8 +170,8 @@ config CROS_EC_LIGHTBAR
 
 config CROS_EC_VBC
 	tristate "ChromeOS EC vboot context support"
-	depends on MFD_CROS_EC_CHARDEV && OF
-	default MFD_CROS_EC_CHARDEV
+	depends on MFD_CROS_EC_DEV && OF
+	default MFD_CROS_EC_DEV
 	help
 	  This option exposes the ChromeOS EC vboot context nvram to
 	  userspace.
@@ -171,8 +181,8 @@ config CROS_EC_VBC
 
 config CROS_EC_DEBUGFS
 	tristate "Export ChromeOS EC internals in DebugFS"
-	depends on MFD_CROS_EC_CHARDEV && DEBUG_FS
-	default MFD_CROS_EC_CHARDEV
+	depends on MFD_CROS_EC_DEV && DEBUG_FS
+	default MFD_CROS_EC_DEV
 	help
 	  This option exposes the ChromeOS EC device internals to
 	  userspace.
@@ -182,8 +192,8 @@ config CROS_EC_DEBUGFS
 
 config CROS_EC_SYSFS
 	tristate "ChromeOS EC control and information through sysfs"
-	depends on MFD_CROS_EC_CHARDEV && SYSFS
-	default MFD_CROS_EC_CHARDEV
+	depends on MFD_CROS_EC_DEV && SYSFS
+	default MFD_CROS_EC_DEV
 	help
 	  This option exposes some sysfs attributes to control and get
 	  information from ChromeOS EC.
-- 
2.20.1

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