Merge tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Core Framework:
   - Document (kerneldoc) core mfd_add_devices() API

  New Drivers:
   - Altera SOCFPGA System Manager
   - Maxim MAX77650/77651 PMIC
   - Maxim MAX77663 PMIC
   - ST Multi-Function eXpander (STMFX)

  New Device Support:
   - LEDs support in Intel Cherry Trail Whiskey Cove PMIC
   - RTC support in SAMSUNG Electronics S2MPA01 PMIC
   - SAM9X60 support in Atmel HLCDC (High-end LCD Controller)
   - USB X-Powers AXP 8xx PMICs
   - Integrated Sensor Hub (ISH) in ChromeOS EC
   - USB PD Logger in ChromeOS EC
   - AXP223 in X-Powers AXP series PMICs
   - Power Supply in X-Powers AXP 803 PMICs
   - Comet Lake in Intel Low Power Subsystem
   - Fingerprint MCU in ChromeOS EC
   - Touchpad MCU in ChromeOS EC
   - Move TI LM3532 support to LED

  New Functionality:
   - max77650, max77620: Add/extend DT support
   - max77620 power-off
   - syscon clocking
   - croc_ec host sleep event

  Fix-ups:
   - Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs
   - Remove unused functionality; rk808, da9063-*
   - SPDX conversion; da9063-*, atmel-*,
   - Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr
   - Fix-up DT bindings; ti-lmu, cirrus,lochnagar
   - Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb

  Bug Fixes:
   - Fix incorrect defined values; max77620, da9063
   - Fix device initialisation; twl6040
   - Reset device on init; intel-lpss
   - Fix build warnings when !OF; sun6i-prcm
   - Register OF match tables; tps65912-spi
   - Fix DMI matching; intel_quark_i2c_gpio"

* tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (65 commits)
  mfd: Use dev_get_drvdata() directly
  mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device
  mfd: cros_ec: Instantiate properly CrOS FP MCU device
  mfd: cros_ec: Update the EC feature codes
  mfd: intel-lpss: Add Intel Comet Lake PCI IDs
  mfd: lochnagar: Add links to binding docs for sound and hwmon
  mfd: ab8500-debugfs: Fix a typo ("deubgfs")
  mfd: imx6sx: Add MQS register definition for iomuxc gpr
  dt-bindings: mfd: LMU: Fix lm3632 dt binding example
  mfd: intel_quark_i2c_gpio: Adjust IOT2000 matching
  mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
  mfd: tps65912-spi: Add missing of table registration
  mfd: axp20x: Add USB power supply mfd cell to AXP803
  mfd: sun6i-prcm: Fix build warning for non-OF configurations
  mfd: intel-lpss: Set the device in reset state when init
  platform/chrome: Add support for v1 of host sleep event
  mfd: cros_ec: Add host_sleep_event_v1 command
  mfd: cros_ec: Instantiate the CrOS USB PD logger driver
  mfd: cs47l90: Make DAC_AEC_CONTROL_2 readable
  mfd: cs47l35: Make DAC_AEC_CONTROL_2 readable
  ...

drivers/input/misc/Kconfig

@@ -190,6 +190,15 @@ config INPUT_M68K_BEEP
 	tristate "M68k Beeper support"
 	depends on M68K
 
+config INPUT_MAX77650_ONKEY
+	tristate "Maxim MAX77650 ONKEY support"
+	depends on MFD_MAX77650
+	help
+	  Support the ONKEY of the MAX77650 PMIC as an input device.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called max77650-onkey.
+
 config INPUT_MAX77693_HAPTIC
 	tristate "MAXIM MAX77693/MAX77843 haptic controller support"
 	depends on (MFD_MAX77693 || MFD_MAX77843) && PWM

drivers/input/misc/Makefile

@@ -44,6 +44,7 @@ obj-$(CONFIG_INPUT_IXP4XX_BEEPER)	+= ixp4xx-beeper.o
 obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
 obj-$(CONFIG_INPUT_KXTJ9)		+= kxtj9.o
 obj-$(CONFIG_INPUT_M68K_BEEP)		+= m68kspkr.o
+obj-$(CONFIG_INPUT_MAX77650_ONKEY)	+= max77650-onkey.o
 obj-$(CONFIG_INPUT_MAX77693_HAPTIC)	+= max77693-haptic.o
 obj-$(CONFIG_INPUT_MAX8925_ONKEY)	+= max8925_onkey.o
 obj-$(CONFIG_INPUT_MAX8997_HAPTIC)	+= max8997_haptic.o

drivers/input/misc/max77650-onkey.c

@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (C) 2018 BayLibre SAS
+// Author: Bartosz Golaszewski <bgolaszewski@baylibre.com>
+//
+// ONKEY driver for MAXIM 77650/77651 charger/power-supply.
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/max77650.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#define MAX77650_ONKEY_MODE_MASK	BIT(3)
+#define MAX77650_ONKEY_MODE_PUSH	0x00
+#define MAX77650_ONKEY_MODE_SLIDE	BIT(3)
+
+struct max77650_onkey {
+	struct input_dev *input;
+	unsigned int code;
+};
+
+static irqreturn_t max77650_onkey_falling(int irq, void *data)
+{
+	struct max77650_onkey *onkey = data;
+
+	input_report_key(onkey->input, onkey->code, 0);
+	input_sync(onkey->input);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t max77650_onkey_rising(int irq, void *data)
+{
+	struct max77650_onkey *onkey = data;
+
+	input_report_key(onkey->input, onkey->code, 1);
+	input_sync(onkey->input);
+
+	return IRQ_HANDLED;
+}
+
+static int max77650_onkey_probe(struct platform_device *pdev)
+{
+	int irq_r, irq_f, error, mode;
+	struct max77650_onkey *onkey;
+	struct device *dev, *parent;
+	struct regmap *map;
+	unsigned int type;
+
+	dev = &pdev->dev;
+	parent = dev->parent;
+
+	map = dev_get_regmap(parent, NULL);
+	if (!map)
+		return -ENODEV;
+
+	onkey = devm_kzalloc(dev, sizeof(*onkey), GFP_KERNEL);
+	if (!onkey)
+		return -ENOMEM;
+
+	error = device_property_read_u32(dev, "linux,code", &onkey->code);
+	if (error)
+		onkey->code = KEY_POWER;
+
+	if (device_property_read_bool(dev, "maxim,onkey-slide")) {
+		mode = MAX77650_ONKEY_MODE_SLIDE;
+		type = EV_SW;
+	} else {
+		mode = MAX77650_ONKEY_MODE_PUSH;
+		type = EV_KEY;
+	}
+
+	error = regmap_update_bits(map, MAX77650_REG_CNFG_GLBL,
+				   MAX77650_ONKEY_MODE_MASK, mode);
+	if (error)
+		return error;
+
+	irq_f = platform_get_irq_byname(pdev, "nEN_F");
+	if (irq_f < 0)
+		return irq_f;
+
+	irq_r = platform_get_irq_byname(pdev, "nEN_R");
+	if (irq_r < 0)
+		return irq_r;
+
+	onkey->input = devm_input_allocate_device(dev);
+	if (!onkey->input)
+		return -ENOMEM;
+
+	onkey->input->name = "max77650_onkey";
+	onkey->input->phys = "max77650_onkey/input0";
+	onkey->input->id.bustype = BUS_I2C;
+	input_set_capability(onkey->input, type, onkey->code);
+
+	error = devm_request_any_context_irq(dev, irq_f, max77650_onkey_falling,
+					     IRQF_ONESHOT, "onkey-down", onkey);
+	if (error < 0)
+		return error;
+
+	error = devm_request_any_context_irq(dev, irq_r, max77650_onkey_rising,
+					     IRQF_ONESHOT, "onkey-up", onkey);
+	if (error < 0)
+		return error;
+
+	return input_register_device(onkey->input);
+}
+
+static struct platform_driver max77650_onkey_driver = {
+	.driver = {
+		.name = "max77650-onkey",
+	},
+	.probe = max77650_onkey_probe,
+};
+module_platform_driver(max77650_onkey_driver);
+
+MODULE_DESCRIPTION("MAXIM 77650/77651 ONKEY driver");
+MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>");
+MODULE_LICENSE("GPL v2");