Merge tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for Ampere Computing SMpro
   - Add support for TI TPS65219 PMIC

  New Functionality:
   - Add support for multiple devices of the same type; rk808

  Fix-ups:
   - Convert a bunch of I2C class drivers over to .probe_new()
   - Remove superfluous includes; mc13xxx-*, palmas, timberdale
   - Use correct includes for GPIO handling; madera-core
   - Convert to GPIOD; twl6040
   - Remove unused platform data handling; twl6040
   - Device Tree changes; many
   - Remove unused drivers; dm355evm_msp, davinci_voicecodec, htc-i2cpld
   - Add support for modules; palmas
   - Enable COMPILE_TEST support; intel_soc_pmic*
   - Trivial: spelling / whitespace fixes; mc13xxx-spi
   - Replace old PM helpers with new ones; many
   - Convert deprecated mask_invert usage to unmask_base; many
   - Use devm_*() calls; qcom_rpm
   - MAINTAINER fix-ups
   - Make use of improved / replaced APIs; palmas, fsl-imx25-tsadc,
     stm32-lptimer, qcom_rpm, rohm-*

  Bug Fixes:
   - Add bounds / error checking; mt6360-core
   - No sleeping inside critical sections; axp20x
   - Fix missing dependencies; ROHM_BD957XMUF
   - Repair error paths; qcom-pm8008"

* tag 'mfd-next-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (161 commits)
  dt-bindings: mfd: da9062: Correct file name for watchdog
  mfd: pm8008: Fix return value check in pm8008_probe()
  mfd: rohm: Use dev_err_probe()
  mfd: Drop obsolete dependencies on COMPILE_TEST
  dt-bindings: mfd: da9062: Move IRQ to optional properties
  mfd: qcom_rpm: Use devm_of_platform_populate() to simplify code
  mfd: qcom_rpm: Fix an error handling path in qcom_rpm_probe()
  mfd: stm32-lptimer: Use devm_platform_get_and_ioremap_resource()
  mfd: rohm-bd9576: Convert to i2c's .probe_new()
  mfd: fsl-imx25-tsadc: Use devm_platform_get_and_ioremap_resource()
  dt-bindings: Fix maintainer email for a few ROHM ICs
  mfd: palmas: Use device_get_match_data() to simplify the code
  Input: Add tps65219 interrupt driven powerbutton
  mfd: tps65219: Add driver for TI TPS65219 PMIC
  mfd: bd957x: Fix Kconfig dependency on REGMAP_IRQ
  mfd: wcd934x: Convert irq chip to config regs
  mfd: tps65090: Replace irqchip mask_invert with unmask_base
  mfd: sun4i-gpadc: Replace irqchip mask_invert with unmask_base
  mfd: stpmic1: Fix swapped mask/unmask in irq chip
  mfd: sprd-sc27xx-spi: Replace irqchip mask_invert with unmask_base
  ...

1 files changed, 148 insertions, 0 deletions

diff --git a/drivers/input/misc/tps65219-pwrbutton.c b/drivers/input/misc/tps65219-pwrbutton.c
new file mode 100644
index 000000000000..245134bdb59e
--- /dev/null
+++ b/drivers/input/misc/tps65219-pwrbutton.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for TPS65219 Push Button
+//
+// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps65219.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct tps65219_pwrbutton {
+	struct device *dev;
+	struct input_dev *idev;
+	char phys[32];
+};
+
+static irqreturn_t tps65219_pb_push_irq(int irq, void *_pwr)
+{
+	struct tps65219_pwrbutton *pwr = _pwr;
+
+	input_report_key(pwr->idev, KEY_POWER, 1);
+	pm_wakeup_event(pwr->dev, 0);
+	input_sync(pwr->idev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t tps65219_pb_release_irq(int irq, void *_pwr)
+{
+	struct tps65219_pwrbutton *pwr = _pwr;
+
+	input_report_key(pwr->idev, KEY_POWER, 0);
+	input_sync(pwr->idev);
+
+	return IRQ_HANDLED;
+}
+
+static int tps65219_pb_probe(struct platform_device *pdev)
+{
+	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+	struct device *dev = &pdev->dev;
+	struct tps65219_pwrbutton *pwr;
+	struct input_dev *idev;
+	int error;
+	int push_irq;
+	int release_irq;
+
+	pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
+	if (!pwr)
+		return -ENOMEM;
+
+	idev = devm_input_allocate_device(dev);
+	if (!idev)
+		return -ENOMEM;
+
+	idev->name = pdev->name;
+	snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0",
+		 pdev->name);
+	idev->phys = pwr->phys;
+	idev->id.bustype = BUS_I2C;
+
+	input_set_capability(idev, EV_KEY, KEY_POWER);
+
+	pwr->dev = dev;
+	pwr->idev = idev;
+	device_init_wakeup(dev, true);
+
+	push_irq = platform_get_irq(pdev, 0);
+	if (push_irq < 0)
+		return -EINVAL;
+
+	release_irq = platform_get_irq(pdev, 1);
+	if (release_irq < 0)
+		return -EINVAL;
+
+	error = devm_request_threaded_irq(dev, push_irq, NULL,
+					  tps65219_pb_push_irq,
+					  IRQF_ONESHOT,
+					  dev->init_name, pwr);
+	if (error) {
+		dev_err(dev, "failed to request push IRQ #%d: %d\n", push_irq,
+			error);
+		return error;
+	}
+
+	error = devm_request_threaded_irq(dev, release_irq, NULL,
+					  tps65219_pb_release_irq,
+					  IRQF_ONESHOT,
+					  dev->init_name, pwr);
+	if (error) {
+		dev_err(dev, "failed to request release IRQ #%d: %d\n",
+			release_irq, error);
+		return error;
+	}
+
+	error = input_register_device(idev);
+	if (error) {
+		dev_err(dev, "Can't register power button: %d\n", error);
+		return error;
+	}
+
+	/* Enable interrupts for the pushbutton */
+	regmap_clear_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+			  TPS65219_REG_MASK_INT_FOR_PB_MASK);
+
+	/* Set PB/EN/VSENSE pin to be a pushbutton */
+	regmap_update_bits(tps->regmap, TPS65219_REG_MFP_2_CONFIG,
+			   TPS65219_MFP_2_EN_PB_VSENSE_MASK, TPS65219_MFP_2_PB);
+
+	return 0;
+}
+
+static int tps65219_pb_remove(struct platform_device *pdev)
+{
+	struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+
+	/* Disable interrupt for the pushbutton */
+	return regmap_update_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+				  TPS65219_REG_MASK_INT_FOR_PB_MASK,
+				  TPS65219_REG_MASK_INT_FOR_PB_MASK);
+}
+
+static const struct platform_device_id tps65219_pwrbtn_id_table[] = {
+	{ "tps65219-pwrbutton", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65219_pwrbtn_id_table);
+
+static struct platform_driver tps65219_pb_driver = {
+	.probe = tps65219_pb_probe,
+	.remove = tps65219_pb_remove,
+	.driver = {
+		.name = "tps65219_pwrbutton",
+	},
+	.id_table = tps65219_pwrbtn_id_table,
+};
+module_platform_driver(tps65219_pb_driver);
+
+MODULE_DESCRIPTION("TPS65219 Power Button");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Markus Schneider-Pargmann <msp@baylibre.com");