linux-kernel - [PATCH v9 7/9] input: max77693: add max77705 haptic support

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Message-Id: <20241202-starqltechn_integration_upstream-v9-7-a1adc3bae2b8@gmail.com>
Date: Mon, 02 Dec 2024 12:48:00 +0300
From: Dzmitry Sankouski <dsankouski@...il.com>
To: Sebastian Reichel <sre@...nel.org>, 
 Chanwoo Choi <cw00.choi@...sung.com>, Krzysztof Kozlowski <krzk@...nel.org>, 
 Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Pavel Machek <pavel@....cz>, 
 Hans de Goede <hdegoede@...hat.com>, 
 Marek Szyprowski <m.szyprowski@...sung.com>, 
 Sebastian Krzyszkowiak <sebastian.krzyszkowiak@...i.sm>, 
 Purism Kernel Team <kernel@...i.sm>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-input@...r.kernel.org, 
 linux-leds@...r.kernel.org, Dzmitry Sankouski <dsankouski@...il.com>
Subject: [PATCH v9 7/9] input: max77693: add max77705 haptic support

Add support for haptic controller on MAX77705 Multifunction
device.

This driver supports external pwm and LRA (Linear Resonant Actuator) motor.
User can control the haptic device via force feedback framework.

Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Dzmitry Sankouski <dsankouski@...il.com>
---
Changes in v4:
- add max77705 haptic support to max77693 driver
- delete max77705-haptic
---
 drivers/input/misc/Kconfig           |  4 ++--
 drivers/input/misc/Makefile          |  1 +
 drivers/input/misc/max77693-haptic.c | 15 ++++++++++++++-
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 6a852c76331b..b4515c4e5cf6 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -241,11 +241,11 @@ config INPUT_MAX77650_ONKEY
 
 config INPUT_MAX77693_HAPTIC
 	tristate "MAXIM MAX77693/MAX77843 haptic controller support"
-	depends on (MFD_MAX77693 || MFD_MAX77843) && PWM
+	depends on (MFD_MAX77693 || MFD_MAX77705 || MFD_MAX77843) && PWM
 	select INPUT_FF_MEMLESS
 	help
 	  This option enables support for the haptic controller on
-	  MAXIM MAX77693 and MAX77843 chips.
+	  MAXIM MAX77693, MAX77705 and MAX77843 chips.
 
 	  To compile this driver as module, choose M here: the
 	  module will be called max77693-haptic.
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 4f7f736831ba..3e3532b27990 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -53,6 +53,7 @@ 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-$(CONFIG_INPUT_MAX77705_HAPTIC)	+= max77705-haptic.o
 obj-$(CONFIG_INPUT_MAX8925_ONKEY)	+= max8925_onkey.o
 obj-$(CONFIG_INPUT_MAX8997_HAPTIC)	+= max8997_haptic.o
 obj-$(CONFIG_INPUT_MC13783_PWRBUTTON)	+= mc13783-pwrbutton.o
diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 0e646f1b257b..c3b9d33608d7 100644
--- a/drivers/input/misc/max77693-haptic.c
+++ b/drivers/input/misc/max77693-haptic.c
@@ -23,6 +23,7 @@
 #include <linux/mfd/max77693.h>
 #include <linux/mfd/max77693-common.h>
 #include <linux/mfd/max77693-private.h>
+#include <linux/mfd/max77705-private.h>
 #include <linux/mfd/max77843-private.h>
 
 #define MAX_MAGNITUDE_SHIFT	16
@@ -115,6 +116,13 @@ static int max77693_haptic_configure(struct max77693_haptic *haptic,
 			MAX77693_HAPTIC_PWM_DIVISOR_128);
 		config_reg = MAX77693_HAPTIC_REG_CONFIG2;
 		break;
+	case TYPE_MAX77705:
+		value = ((haptic->type << MAX77693_CONFIG2_MODE) |
+			(enable << MAX77693_CONFIG2_MEN) |
+			(haptic->mode << MAX77693_CONFIG2_HTYP) |
+			MAX77693_HAPTIC_PWM_DIVISOR_128);
+		config_reg = MAX77705_PMIC_REG_MCONFIG;
+		break;
 	case TYPE_MAX77843:
 		value = (haptic->type << MCONFIG_MODE_SHIFT) |
 			(enable << MCONFIG_MEN_SHIFT) |
@@ -312,6 +320,9 @@ static int max77693_haptic_probe(struct platform_device *pdev)
 	case TYPE_MAX77693:
 		haptic->regmap_haptic = max77693->regmap_haptic;
 		break;
+	case TYPE_MAX77705:
+		haptic->regmap_haptic = max77693->regmap;
+		break;
 	case TYPE_MAX77843:
 		haptic->regmap_haptic = max77693->regmap;
 		break;
@@ -407,6 +418,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,
 
 static const struct platform_device_id max77693_haptic_id[] = {
 	{ "max77693-haptic", },
+	{ "max77705-haptic", },
 	{ "max77843-haptic", },
 	{},
 };
@@ -414,6 +426,7 @@ MODULE_DEVICE_TABLE(platform, max77693_haptic_id);
 
 static const struct of_device_id of_max77693_haptic_dt_match[] = {
 	{ .compatible = "maxim,max77693-haptic", },
+	{ .compatible = "maxim,max77705-haptic", },
 	{ .compatible = "maxim,max77843-haptic", },
 	{ /* sentinel */ },
 };
@@ -432,5 +445,5 @@ module_platform_driver(max77693_haptic_driver);
 
 MODULE_AUTHOR("Jaewon Kim <jaewon02.kim@...sung.com>");
 MODULE_AUTHOR("Krzysztof Kozlowski <krzk@...nel.org>");
-MODULE_DESCRIPTION("MAXIM 77693/77843 Haptic driver");
+MODULE_DESCRIPTION("MAXIM 77693/77705/77843 Haptic driver");
 MODULE_LICENSE("GPL");

-- 
2.39.5