[PATCH v6 00/20] mfd: adp5585: support keymap events and drop legacy Input driver

[PATCH v6 00/20] mfd: adp5585: support keymap events and drop legacy Input driver

[Nuno Sá via B4 Relay]

Hi all,

Here it goes v6. Lee, note that I did not added changelog for changing
the the git subject on MFD patches.

Thanks!
- Nuno Sá

---
- Link to v5: https://lore.kernel.org/r/20250614-dev-adp5589-fw-v5-0-7e9d84906268@analog.com
- Link to v4: https://lore.kernel.org/r/20250521-dev-adp5589-fw-v4-0-f2c988d7a7a0@analog.com
- Link to v3: https://lore.kernel.org/r/20250512-dev-adp5589-fw-v3-0-092b14b79a88@analog.com
- Link to v2: https://lore.kernel.org/r/20250415-dev-adp5589-fw-v2-0-3a799c3ed812@analog.com
- Link to v1: https://lore.kernel.org/r/20250313-dev-adp5589-fw-v1-0-20e80d4bd4ea@analog.com

---
Nuno Sá (20):
      dt-bindings: mfd: adp5585: ease on the required properties
      mfd: adp5585: Only add devices given in FW
      mfd: adp5585: Enable oscilator during probe
      mfd: adp5585: Make use of MFD_CELL_NAME()
      dt-bindings: mfd: adp5585: document adp5589 I/O expander
      mfd: adp5585: Refactor how regmap defaults are handled
      mfd: adp5585: Add support for adp5589
      mfd: adp5585: Add a per chip reg struture
      gpio: adp5585: add support for the adp5589 expander
      pwm: adp5585: add support for adp5589
      dt-bindings: mfd: adp5585: add properties for input events
      mfd: adp5585: Add support for event handling
      mfd: adp5585: Support reset and unlock events
      mfd: adp5585: Add support for input devices
      gpio: adp5585: support gpi events
      Input: adp5585: Add Analog Devices ADP5585/89 support
      Input: adp5589: remove the driver
      mfd: adp5585: Support getting vdd regulator
      dt-bindings: mfd: adp5585: document reset gpio
      mfd: adp5585: Add support for a reset pin

 .../devicetree/bindings/mfd/adi,adp5585.yaml       |  240 ++++-
 .../devicetree/bindings/trivial-devices.yaml       |    2 -
 MAINTAINERS                                        |    1 +
 drivers/gpio/Kconfig                               |    1 +
 drivers/gpio/gpio-adp5585.c                        |  364 ++++++-
 drivers/input/keyboard/Kconfig                     |   21 +-
 drivers/input/keyboard/Makefile                    |    2 +-
 drivers/input/keyboard/adp5585-keys.c              |  371 +++++++
 drivers/input/keyboard/adp5589-keys.c              | 1066 --------------------
 drivers/mfd/adp5585.c                              |  741 +++++++++++++-
 drivers/pwm/pwm-adp5585.c                          |   78 +-
 include/linux/mfd/adp5585.h                        |  118 ++-
 12 files changed, 1797 insertions(+), 1208 deletions(-)
---
base-commit: 407f60a151df3c44397e5afc0111eb9b026c38d3
change-id: 20250311-dev-adp5589-fw-e04cfd945286
--

Thanks!
- Nuno Sá

[PATCH v6 01/20] dt-bindings: mfd: adp5585: ease on the required properties

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

It is not mandatory to use all the capabilities of the device. One can
very well only use it as a gpio controller without the PWM support. This
will be even more evident when support for the matrix keymap is added.
Hence drop the requirements for PWM and GPIO.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 Documentation/devicetree/bindings/mfd/adi,adp5585.yaml | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
index ee2272f754a339569c793102928ddd13249f8fee..e30e22f964f78519b2ec207e9415e4897db5c702 100644
--- a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
+++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
@@ -52,9 +52,6 @@ patternProperties:
 required:
   - compatible
   - reg
-  - gpio-controller
-  - "#gpio-cells"
-  - "#pwm-cells"
 
 allOf:
   - if:

-- 
2.50.0

[PATCH v6 02/20] mfd: adp5585: Only add devices given in FW

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Not all devices (features) of the adp5585 device are mandatory to be
used in all platforms. Hence, check what's given in FW and dynamically
create the mfd_cell array to be given to devm_mfd_add_devices().

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c | 38 +++++++++++++++++++++++++++++---------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 160e0b38106a6d78f7d4b7c866cb603d96ea673e..53a46734f2d022ec54b3efc2ebbf389357f8d85a 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -17,7 +17,13 @@
 #include <linux/regmap.h>
 #include <linux/types.h>
 
-static const struct mfd_cell adp5585_devs[] = {
+enum {
+	ADP5585_DEV_GPIO,
+	ADP5585_DEV_PWM,
+	ADP5585_DEV_MAX
+};
+
+static const struct mfd_cell adp5585_devs[ADP5585_DEV_MAX] = {
 	{ .name = "adp5585-gpio", },
 	{ .name = "adp5585-pwm", },
 };
@@ -110,6 +116,27 @@ static const struct regmap_config adp5585_regmap_configs[] = {
 	},
 };
 
+static int adp5585_add_devices(struct device *dev)
+{
+	int ret;
+
+	if (device_property_present(dev, "#pwm-cells")) {
+		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
+					   &adp5585_devs[ADP5585_DEV_PWM], 1, NULL, 0, NULL);
+		if (ret)
+			return dev_err_probe(dev, ret, "Failed to add PWM device\n");
+	}
+
+	if (device_property_present(dev, "#gpio-cells")) {
+		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
+					   &adp5585_devs[ADP5585_DEV_GPIO], 1, NULL, 0, NULL);
+		if (ret)
+			return dev_err_probe(dev, ret, "Failed to add GPIO device\n");
+	}
+
+	return 0;
+}
+
 static int adp5585_i2c_probe(struct i2c_client *i2c)
 {
 	const struct regmap_config *regmap_config;
@@ -138,14 +165,7 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return dev_err_probe(&i2c->dev, -ENODEV,
 				     "Invalid device ID 0x%02x\n", id);
 
-	ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
-				   adp5585_devs, ARRAY_SIZE(adp5585_devs),
-				   NULL, 0, NULL);
-	if (ret)
-		return dev_err_probe(&i2c->dev, ret,
-				     "Failed to add child devices\n");
-
-	return 0;
+	return adp5585_add_devices(&i2c->dev);
 }
 
 static int adp5585_suspend(struct device *dev)

-- 
2.50.0

[PATCH v6 03/20] mfd: adp5585: Enable oscilator during probe

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Make sure to enable the oscillator in the top device. This will allow to
not control this in the child PWM device as that would not work with
future support for keyboard matrix where the oscillator needs to be
always enabled (and so cannot be disabled by disabling PWM).

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c     | 19 +++++++++++++++++++
 drivers/pwm/pwm-adp5585.c |  5 -----
 2 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 53a46734f2d022ec54b3efc2ebbf389357f8d85a..e4a75ae9b2696d5ca8dfe7882660ed08bcd5ba2d 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -137,6 +137,13 @@ static int adp5585_add_devices(struct device *dev)
 	return 0;
 }
 
+static void adp5585_osc_disable(void *data)
+{
+	const struct adp5585_dev *adp5585 = data;
+
+	regmap_write(adp5585->regmap, ADP5585_GENERAL_CFG, 0);
+}
+
 static int adp5585_i2c_probe(struct i2c_client *i2c)
 {
 	const struct regmap_config *regmap_config;
@@ -165,6 +172,18 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return dev_err_probe(&i2c->dev, -ENODEV,
 				     "Invalid device ID 0x%02x\n", id);
 
+	/*
+	 * Enable the internal oscillator, as it's shared between multiple
+	 * functions.
+	 */
+	ret = regmap_set_bits(adp5585->regmap, ADP5585_GENERAL_CFG, ADP5585_OSC_EN);
+	if (ret)
+		return ret;
+
+	ret = devm_add_action_or_reset(&i2c->dev, adp5585_osc_disable, adp5585);
+	if (ret)
+		return ret;
+
 	return adp5585_add_devices(&i2c->dev);
 }
 
diff --git a/drivers/pwm/pwm-adp5585.c b/drivers/pwm/pwm-adp5585.c
index 40472ac5db6410a33e4f790fe8e6c23b517502be..c8821035b7c1412a55a642e6e8a46b66e693a5af 100644
--- a/drivers/pwm/pwm-adp5585.c
+++ b/drivers/pwm/pwm-adp5585.c
@@ -62,7 +62,6 @@ static int pwm_adp5585_apply(struct pwm_chip *chip,
 	int ret;
 
 	if (!state->enabled) {
-		regmap_clear_bits(regmap, ADP5585_GENERAL_CFG, ADP5585_OSC_EN);
 		regmap_clear_bits(regmap, ADP5585_PWM_CFG, ADP5585_PWM_EN);
 		return 0;
 	}
@@ -100,10 +99,6 @@ static int pwm_adp5585_apply(struct pwm_chip *chip,
 	if (ret)
 		return ret;
 
-	ret = regmap_set_bits(regmap, ADP5585_GENERAL_CFG, ADP5585_OSC_EN);
-	if (ret)
-		return ret;
-
 	return regmap_set_bits(regmap, ADP5585_PWM_CFG, ADP5585_PWM_EN);
 }
 

-- 
2.50.0

Re: [PATCH v6 03/20] mfd: adp5585: Enable oscilator during probe

[Uwe Kleine-König]

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Hello,

just one comment that I saw while skimming over this series in my
mailbox:

$Subject ~= s/oscilator/oscillator/

Best regards
Uwe

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[PATCH v6 04/20] mfd: adp5585: Make use of MFD_CELL_NAME()

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Use the helper macro. No functional change intended...

Whilst we're at it, now seems like a good time to update the Copyright.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index e4a75ae9b2696d5ca8dfe7882660ed08bcd5ba2d..c764f481875831ff55bccb8cdc59421719afbedd 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -4,6 +4,7 @@
  *
  * Copyright 2022 NXP
  * Copyright 2024 Ideas on Board Oy
+ * Copyright 2025 Analog Devices Inc.
  */
 
 #include <linux/array_size.h>
@@ -24,8 +25,8 @@ enum {
 };
 
 static const struct mfd_cell adp5585_devs[ADP5585_DEV_MAX] = {
-	{ .name = "adp5585-gpio", },
-	{ .name = "adp5585-pwm", },
+	MFD_CELL_NAME("adp5585-gpio"),
+	MFD_CELL_NAME("adp5585-pwm"),
 };
 
 static const struct regmap_range adp5585_volatile_ranges[] = {

-- 
2.50.0

[PATCH v6 05/20] dt-bindings: mfd: adp5585: document adp5589 I/O expander

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The ADP5589 is a 19 I/O port expander with built-in keypad matrix decoder,
programmable logic, reset generator, and PWM generator.

We can't really have adp5589 devices fallback to adp5585 (which have
less pins) because there are some significant differences in the register
map.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 .../devicetree/bindings/mfd/adi,adp5585.yaml       | 47 +++++++++++++++++-----
 .../devicetree/bindings/trivial-devices.yaml       |  2 -
 2 files changed, 38 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
index e30e22f964f78519b2ec207e9415e4897db5c702..9471af28419d820424745315ffb2129f7dd37581 100644
--- a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
+++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
@@ -15,14 +15,21 @@ description:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - adi,adp5585-00  # Default
-          - adi,adp5585-01  # 11 GPIOs
-          - adi,adp5585-02  # No pull-up resistors by default on special pins
-          - adi,adp5585-03  # Alternate I2C address
-          - adi,adp5585-04  # Pull-down resistors on all pins by default
-      - const: adi,adp5585
+    oneOf:
+      - items:
+          - enum:
+              - adi,adp5585-00  # Default
+              - adi,adp5585-01  # 11 GPIOs
+              - adi,adp5585-02  # No pull-up resistors by default on special pins
+              - adi,adp5585-03  # Alternate I2C address
+              - adi,adp5585-04  # Pull-down resistors on all pins by default
+          - const: adi,adp5585
+      - items:
+          - enum:
+              - adi,adp5589-00  # Default
+              - adi,adp5589-01  # R4 defaulted to RESET1 output
+              - adi,adp5589-02  # Pull-down resistors by default on special pins
+          - const: adi,adp5589
 
   reg:
     maxItems: 1
@@ -62,7 +69,17 @@ allOf:
     then:
       properties:
         gpio-reserved-ranges: false
-    else:
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,adp5585-00
+              - adi,adp5585-02
+              - adi,adp5585-03
+              - adi,adp5585-04
+    then:
       properties:
         gpio-reserved-ranges:
           maxItems: 1
@@ -71,6 +88,18 @@ allOf:
               - const: 5
               - const: 1
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - adi,adp5589-00
+              - adi,adp5589-01
+              - adi,adp5589-02
+    then:
+      properties:
+        gpio-reserved-ranges: false
+
 additionalProperties: false
 
 examples:
diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml
index 8da408107e55483affedb7e697eb79e8c8902ed9..208fe4242672d9da66799c2742a9381938737232 100644
--- a/Documentation/devicetree/bindings/trivial-devices.yaml
+++ b/Documentation/devicetree/bindings/trivial-devices.yaml
@@ -39,8 +39,6 @@ properties:
           - ad,adm9240
             # AD5110 - Nonvolatile Digital Potentiometer
           - adi,ad5110
-            # Analog Devices ADP5589 Keypad Decoder and I/O Expansion
-          - adi,adp5589
             # Analog Devices LT7182S Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher
           - adi,lt7182s
             # AMS iAQ-Core VOC Sensor

-- 
2.50.0

[PATCH v6 06/20] mfd: adp5585: Refactor how regmap defaults are handled

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The only thing changing between variants is the regmap default
registers. Hence, instead of having a regmap configuration for every
variant (duplicating lots of fields), add a chip info type of structure
with a regmap ID to identify which defaults to use and populate
regmap_config at runtime given a template plus the id. Also note that
between variants, the defaults can be the same which means the chip info
structure can be used in more than one compatible.

This will also make it simpler adding new chips with more variants.

Also note that the chip info structures are deliberately not const as
they will also contain lots of members that are the same between the
different devices variants and so we will fill those at runtime.

Changes in v6:
 - Use sizeof(*regmap_config);
 - Remove unneeded comment.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 80 +++++++++++++++++++++++----------------------
 include/linux/mfd/adp5585.h | 11 +++++++
 2 files changed, 52 insertions(+), 39 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index c764f481875831ff55bccb8cdc59421719afbedd..4d92b63629289c816bc46b70d3171ce16b1ee33e 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -81,42 +81,36 @@ static const u8 adp5585_regmap_defaults_04[ADP5585_MAX_REG + 1] = {
 	/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00,
 };
 
-enum adp5585_regmap_type {
-	ADP5585_REGMAP_00,
-	ADP5585_REGMAP_02,
-	ADP5585_REGMAP_04,
+static const u8 *adp5585_regmap_defaults[ADP5585_MAX] = {
+	[ADP5585_00] = adp5585_regmap_defaults_00,
+	[ADP5585_01] = adp5585_regmap_defaults_00,
+	[ADP5585_02] = adp5585_regmap_defaults_02,
+	[ADP5585_03] = adp5585_regmap_defaults_00,
+	[ADP5585_04] = adp5585_regmap_defaults_04,
 };
 
-static const struct regmap_config adp5585_regmap_configs[] = {
-	[ADP5585_REGMAP_00] = {
-		.reg_bits = 8,
-		.val_bits = 8,
-		.max_register = ADP5585_MAX_REG,
-		.volatile_table = &adp5585_volatile_regs,
-		.cache_type = REGCACHE_MAPLE,
-		.reg_defaults_raw = adp5585_regmap_defaults_00,
-		.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_00),
-	},
-	[ADP5585_REGMAP_02] = {
-		.reg_bits = 8,
-		.val_bits = 8,
-		.max_register = ADP5585_MAX_REG,
-		.volatile_table = &adp5585_volatile_regs,
-		.cache_type = REGCACHE_MAPLE,
-		.reg_defaults_raw = adp5585_regmap_defaults_02,
-		.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_02),
-	},
-	[ADP5585_REGMAP_04] = {
-		.reg_bits = 8,
-		.val_bits = 8,
-		.max_register = ADP5585_MAX_REG,
-		.volatile_table = &adp5585_volatile_regs,
-		.cache_type = REGCACHE_MAPLE,
-		.reg_defaults_raw = adp5585_regmap_defaults_04,
-		.num_reg_defaults_raw = sizeof(adp5585_regmap_defaults_04),
-	},
+static const struct regmap_config adp5585_regmap_config_template = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = ADP5585_MAX_REG,
+	.volatile_table = &adp5585_volatile_regs,
+	.cache_type = REGCACHE_MAPLE,
+	.num_reg_defaults_raw = ADP5585_MAX_REG + 1,
 };
 
+static struct regmap_config *adp5585_fill_regmap_config(const struct adp5585_dev *adp5585)
+{
+	struct regmap_config *regmap_config;
+
+	regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
+				     sizeof(*regmap_config), GFP_KERNEL);
+	if (!regmap_config)
+		return ERR_PTR(-ENOMEM);
+
+	regmap_config->reg_defaults_raw = adp5585_regmap_defaults[adp5585->variant];
+	return regmap_config;
+}
+
 static int adp5585_add_devices(struct device *dev)
 {
 	int ret;
@@ -147,7 +141,7 @@ static void adp5585_osc_disable(void *data)
 
 static int adp5585_i2c_probe(struct i2c_client *i2c)
 {
-	const struct regmap_config *regmap_config;
+	struct regmap_config *regmap_config;
 	struct adp5585_dev *adp5585;
 	unsigned int id;
 	int ret;
@@ -157,8 +151,16 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return -ENOMEM;
 
 	i2c_set_clientdata(i2c, adp5585);
+	adp5585->dev = &i2c->dev;
+
+	adp5585->variant = (enum adp5585_variant)(uintptr_t)i2c_get_match_data(i2c);
+	if (!adp5585->variant)
+		return -ENODEV;
+
+	regmap_config = adp5585_fill_regmap_config(adp5585);
+	if (IS_ERR(regmap_config))
+		return PTR_ERR(regmap_config);
 
-	regmap_config = i2c_get_match_data(i2c);
 	adp5585->regmap = devm_regmap_init_i2c(i2c, regmap_config);
 	if (IS_ERR(adp5585->regmap))
 		return dev_err_probe(&i2c->dev, PTR_ERR(adp5585->regmap),
@@ -212,19 +214,19 @@ static DEFINE_SIMPLE_DEV_PM_OPS(adp5585_pm, adp5585_suspend, adp5585_resume);
 static const struct of_device_id adp5585_of_match[] = {
 	{
 		.compatible = "adi,adp5585-00",
-		.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
+		.data = (void *)ADP5585_00,
 	}, {
 		.compatible = "adi,adp5585-01",
-		.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
+		.data = (void *)ADP5585_01,
 	}, {
 		.compatible = "adi,adp5585-02",
-		.data = &adp5585_regmap_configs[ADP5585_REGMAP_02],
+		.data = (void *)ADP5585_02,
 	}, {
 		.compatible = "adi,adp5585-03",
-		.data = &adp5585_regmap_configs[ADP5585_REGMAP_00],
+		.data = (void *)ADP5585_03,
 	}, {
 		.compatible = "adi,adp5585-04",
-		.data = &adp5585_regmap_configs[ADP5585_REGMAP_04],
+		.data = (void *)ADP5585_04,
 	},
 	{ /* sentinel */ }
 };
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 016033cd68e46757aca86d21dd37025fd354b801..c56af8d8d76c4ebc0ede1ee4769ca059de29f53c 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -119,8 +119,19 @@
 
 struct regmap;
 
+enum adp5585_variant {
+	ADP5585_00 = 1,
+	ADP5585_01,
+	ADP5585_02,
+	ADP5585_03,
+	ADP5585_04,
+	ADP5585_MAX
+};
+
 struct adp5585_dev {
+	struct device *dev;
 	struct regmap *regmap;
+	enum adp5585_variant variant;
 };
 
 #endif

-- 
2.50.0

[PATCH v6 07/20] mfd: adp5585: Add support for adp5589

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The ADP5589 is a 19 I/O port expander with built-in keypad matrix decoder,
programmable logic, reset generator, and PWM generator.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 123 ++++++++++++++++++++++++++++++++++++++++----
 include/linux/mfd/adp5585.h |  10 ++++
 2 files changed, 124 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 4d92b63629289c816bc46b70d3171ce16b1ee33e..00996571ef900bece2d634cd9d05394fa04d550a 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -29,6 +29,11 @@ static const struct mfd_cell adp5585_devs[ADP5585_DEV_MAX] = {
 	MFD_CELL_NAME("adp5585-pwm"),
 };
 
+static const struct mfd_cell adp5589_devs[] = {
+	MFD_CELL_NAME("adp5589-gpio"),
+	MFD_CELL_NAME("adp5589-pwm"),
+};
+
 static const struct regmap_range adp5585_volatile_ranges[] = {
 	regmap_reg_range(ADP5585_ID, ADP5585_GPI_STATUS_B),
 };
@@ -38,6 +43,15 @@ static const struct regmap_access_table adp5585_volatile_regs = {
 	.n_yes_ranges = ARRAY_SIZE(adp5585_volatile_ranges),
 };
 
+static const struct regmap_range adp5589_volatile_ranges[] = {
+	regmap_reg_range(ADP5585_ID, ADP5589_GPI_STATUS_C),
+};
+
+static const struct regmap_access_table adp5589_volatile_regs = {
+	.yes_ranges = adp5589_volatile_ranges,
+	.n_yes_ranges = ARRAY_SIZE(adp5589_volatile_ranges),
+};
+
 /*
  * Chip variants differ in the default configuration of pull-up and pull-down
  * resistors, and therefore have different default register values:
@@ -81,12 +95,54 @@ static const u8 adp5585_regmap_defaults_04[ADP5585_MAX_REG + 1] = {
 	/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00,
 };
 
+static const u8 adp5589_regmap_defaults_00[ADP5589_MAX_REG + 1] = {
+	/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x18 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x48 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 adp5589_regmap_defaults_01[ADP5589_MAX_REG + 1] = {
+	/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x18 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
+	/* 0x40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x48 */ 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00,
+};
+
+static const u8 adp5589_regmap_defaults_02[ADP5589_MAX_REG + 1] = {
+	/* 0x00 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x08 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x10 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x18 */ 0x00, 0x41, 0x01, 0x00, 0x11, 0x04, 0x00, 0x00,
+	/* 0x20 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x28 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x30 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x38 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x40 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	/* 0x48 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+};
+
 static const u8 *adp5585_regmap_defaults[ADP5585_MAX] = {
 	[ADP5585_00] = adp5585_regmap_defaults_00,
 	[ADP5585_01] = adp5585_regmap_defaults_00,
 	[ADP5585_02] = adp5585_regmap_defaults_02,
 	[ADP5585_03] = adp5585_regmap_defaults_00,
 	[ADP5585_04] = adp5585_regmap_defaults_04,
+	[ADP5589_00] = adp5589_regmap_defaults_00,
+	[ADP5589_01] = adp5589_regmap_defaults_01,
+	[ADP5589_02] = adp5589_regmap_defaults_02,
 };
 
 static const struct regmap_config adp5585_regmap_config_template = {
@@ -98,33 +154,69 @@ static const struct regmap_config adp5585_regmap_config_template = {
 	.num_reg_defaults_raw = ADP5585_MAX_REG + 1,
 };
 
-static struct regmap_config *adp5585_fill_regmap_config(const struct adp5585_dev *adp5585)
+static const struct regmap_config adp5589_regmap_config_template = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = ADP5589_MAX_REG,
+	.volatile_table = &adp5589_volatile_regs,
+	.cache_type = REGCACHE_MAPLE,
+	.num_reg_defaults_raw = ADP5589_MAX_REG + 1,
+};
+
+static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp5585)
 {
 	struct regmap_config *regmap_config;
 
-	regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
-				     sizeof(*regmap_config), GFP_KERNEL);
+	switch (adp5585->variant) {
+	case ADP5585_00:
+	case ADP5585_01:
+	case ADP5585_02:
+	case ADP5585_03:
+	case ADP5585_04:
+		adp5585->id = ADP5585_MAN_ID_VALUE;
+		regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
+					     sizeof(*regmap_config), GFP_KERNEL);
+		break;
+	case ADP5589_00:
+	case ADP5589_01:
+	case ADP5589_02:
+		adp5585->id = ADP5589_MAN_ID_VALUE;
+		regmap_config = devm_kmemdup(adp5585->dev, &adp5589_regmap_config_template,
+					     sizeof(*regmap_config), GFP_KERNEL);
+		break;
+	default:
+		return ERR_PTR(-ENODEV);
+	}
+
 	if (!regmap_config)
 		return ERR_PTR(-ENOMEM);
 
 	regmap_config->reg_defaults_raw = adp5585_regmap_defaults[adp5585->variant];
+
 	return regmap_config;
 }
 
-static int adp5585_add_devices(struct device *dev)
+static int adp5585_add_devices(const struct adp5585_dev *adp5585)
 {
+	struct device *dev = adp5585->dev;
+	const struct mfd_cell *cells;
 	int ret;
 
+	if (adp5585->id == ADP5585_MAN_ID_VALUE)
+		cells = adp5585_devs;
+	else
+		cells = adp5589_devs;
+
 	if (device_property_present(dev, "#pwm-cells")) {
 		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
-					   &adp5585_devs[ADP5585_DEV_PWM], 1, NULL, 0, NULL);
+					   &cells[ADP5585_DEV_PWM], 1, NULL, 0, NULL);
 		if (ret)
 			return dev_err_probe(dev, ret, "Failed to add PWM device\n");
 	}
 
 	if (device_property_present(dev, "#gpio-cells")) {
 		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
-					   &adp5585_devs[ADP5585_DEV_GPIO], 1, NULL, 0, NULL);
+					   &cells[ADP5585_DEV_GPIO], 1, NULL, 0, NULL);
 		if (ret)
 			return dev_err_probe(dev, ret, "Failed to add GPIO device\n");
 	}
@@ -157,7 +249,7 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 	if (!adp5585->variant)
 		return -ENODEV;
 
-	regmap_config = adp5585_fill_regmap_config(adp5585);
+	regmap_config = adp5585_fill_variant_config(adp5585);
 	if (IS_ERR(regmap_config))
 		return PTR_ERR(regmap_config);
 
@@ -171,7 +263,8 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return dev_err_probe(&i2c->dev, ret,
 				     "Failed to read device ID\n");
 
-	if ((id & ADP5585_MAN_ID_MASK) != ADP5585_MAN_ID_VALUE)
+	id &= ADP5585_MAN_ID_MASK;
+	if (id != adp5585->id)
 		return dev_err_probe(&i2c->dev, -ENODEV,
 				     "Invalid device ID 0x%02x\n", id);
 
@@ -187,7 +280,7 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 	if (ret)
 		return ret;
 
-	return adp5585_add_devices(&i2c->dev);
+	return adp5585_add_devices(adp5585);
 }
 
 static int adp5585_suspend(struct device *dev)
@@ -227,6 +320,18 @@ static const struct of_device_id adp5585_of_match[] = {
 	}, {
 		.compatible = "adi,adp5585-04",
 		.data = (void *)ADP5585_04,
+	}, {
+		.compatible = "adi,adp5589-00",
+		.data = (void *)ADP5589_00,
+	}, {
+		.compatible = "adi,adp5589-01",
+		.data = (void *)ADP5589_01,
+	}, {
+		.compatible = "adi,adp5589-02",
+		.data = (void *)ADP5589_02,
+	}, {
+		.compatible = "adi,adp5589",
+		.data = (void *)ADP5589_00,
 	},
 	{ /* sentinel */ }
 };
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index c56af8d8d76c4ebc0ede1ee4769ca059de29f53c..70e58122a36a7321dc95d095b806f06fa57c97c9 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -117,6 +117,12 @@
 #define ADP5585_BANK(n)			((n) >= 6 ? 1 : 0)
 #define ADP5585_BIT(n)			((n) >= 6 ? BIT((n) - 6) : BIT(n))
 
+/* ADP5589 */
+#define		ADP5589_MAN_ID_VALUE		0x10
+#define ADP5589_GPI_STATUS_C		0x18
+#define ADP5589_INT_EN			0x4e
+#define ADP5589_MAX_REG			ADP5589_INT_EN
+
 struct regmap;
 
 enum adp5585_variant {
@@ -125,6 +131,9 @@ enum adp5585_variant {
 	ADP5585_02,
 	ADP5585_03,
 	ADP5585_04,
+	ADP5589_00,
+	ADP5589_01,
+	ADP5589_02,
 	ADP5585_MAX
 };
 
@@ -132,6 +141,7 @@ struct adp5585_dev {
 	struct device *dev;
 	struct regmap *regmap;
 	enum adp5585_variant variant;
+	unsigned int id;
 };
 
 #endif

-- 
2.50.0

[PATCH v6 08/20] mfd: adp5585: Add a per chip reg struture

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

There are some differences in the register map between the devices.
Hence, add a register structure per device. This will be needed in
following patches.

On top of that adp5585_fill_regmap_config() is renamed and reworked so
that the current struct adp5585_info act as template (they indeed
contain all the different data between variants) which can then be
complemented depending on the device (as identified by the id register).
This is done like this since a lot of the data is pretty much the same
between variants of the same device.

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 10 ++++++++++
 include/linux/mfd/adp5585.h |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 00996571ef900bece2d634cd9d05394fa04d550a..ae12372bdde9141034b28731e22758948438cb31 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -163,6 +163,14 @@ static const struct regmap_config adp5589_regmap_config_template = {
 	.num_reg_defaults_raw = ADP5589_MAX_REG + 1,
 };
 
+static const struct adp5585_regs adp5585_regs = {
+	.ext_cfg = ADP5585_PIN_CONFIG_C,
+};
+
+static const struct adp5585_regs adp5589_regs = {
+	.ext_cfg = ADP5589_PIN_CONFIG_D,
+};
+
 static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp5585)
 {
 	struct regmap_config *regmap_config;
@@ -174,6 +182,7 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	case ADP5585_03:
 	case ADP5585_04:
 		adp5585->id = ADP5585_MAN_ID_VALUE;
+		adp5585->regs = &adp5585_regs;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
 					     sizeof(*regmap_config), GFP_KERNEL);
 		break;
@@ -181,6 +190,7 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	case ADP5589_01:
 	case ADP5589_02:
 		adp5585->id = ADP5589_MAN_ID_VALUE;
+		adp5585->regs = &adp5589_regs;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5589_regmap_config_template,
 					     sizeof(*regmap_config), GFP_KERNEL);
 		break;
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 70e58122a36a7321dc95d095b806f06fa57c97c9..6ecb90a6276c0f8f2c983c62c7268505d74b6583 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -120,6 +120,7 @@
 /* ADP5589 */
 #define		ADP5589_MAN_ID_VALUE		0x10
 #define ADP5589_GPI_STATUS_C		0x18
+#define ADP5589_PIN_CONFIG_D		0x4C
 #define ADP5589_INT_EN			0x4e
 #define ADP5589_MAX_REG			ADP5589_INT_EN
 
@@ -137,9 +138,14 @@ enum adp5585_variant {
 	ADP5585_MAX
 };
 
+struct adp5585_regs {
+	unsigned int ext_cfg;
+};
+
 struct adp5585_dev {
 	struct device *dev;
 	struct regmap *regmap;
+	const struct adp5585_regs *regs;
 	enum adp5585_variant variant;
 	unsigned int id;
 };

-- 
2.50.0

[PATCH v6 09/20] gpio: adp5585: add support for the adp5589 expander

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Support the adp5589 I/O expander which supports up to 19 pins. We need
to add a chip_info based struct since accessing register "banks"
and "bits" differs between devices.

Also some register addresses are different.

While at it move ADP558X_GPIO_MAX defines to the main header file and
rename them. That information will be needed by the top level device in
a following change.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/gpio/gpio-adp5585.c | 151 ++++++++++++++++++++++++++++++++++----------
 include/linux/mfd/adp5585.h |  18 +++---
 2 files changed, 126 insertions(+), 43 deletions(-)

diff --git a/drivers/gpio/gpio-adp5585.c b/drivers/gpio/gpio-adp5585.c
index d5c0f1b267c82a5002b50cbb7a108166439e4785..cdf107742579cb44d73cc030646358ba5a23fd97 100644
--- a/drivers/gpio/gpio-adp5585.c
+++ b/drivers/gpio/gpio-adp5585.c
@@ -4,6 +4,7 @@
  *
  * Copyright 2022 NXP
  * Copyright 2024 Ideas on Board Oy
+ * Copyright 2025 Analog Devices, Inc.
  */
 
 #include <linux/device.h>
@@ -14,57 +15,106 @@
 #include <linux/regmap.h>
 #include <linux/types.h>
 
-#define ADP5585_GPIO_MAX	11
+/*
+ * Bank 0 covers pins "GPIO 1/R0" to "GPIO 6/R5", numbered 0 to 5 by the
+ * driver, and bank 1 covers pins "GPIO 7/C0" to "GPIO 11/C4", numbered 6 to
+ * 10. Some variants of the ADP5585 don't support "GPIO 6/R5". As the driver
+ * uses identical GPIO numbering for all variants to avoid confusion, GPIO 5 is
+ * marked as reserved in the device tree for variants that don't support it.
+ */
+#define ADP5585_BANK(n)			((n) >= 6 ? 1 : 0)
+#define ADP5585_BIT(n)			((n) >= 6 ? BIT((n) - 6) : BIT(n))
+
+/*
+ * Bank 0 covers pins "GPIO 1/R0" to "GPIO 8/R7", numbered 0 to 7 by the
+ * driver, bank 1 covers pins "GPIO 9/C0" to "GPIO 16/C7", numbered 8 to
+ * 15 and bank 3 covers pins "GPIO 17/C8" to "GPIO 19/C10", numbered 16 to 18.
+ */
+#define ADP5589_BANK(n)			((n) >> 3)
+#define ADP5589_BIT(n)			BIT((n) & 0x7)
+
+struct adp5585_gpio_chip {
+	int (*bank)(unsigned int off);
+	int (*bit)(unsigned int off);
+	unsigned int max_gpio;
+	unsigned int debounce_dis_a;
+	unsigned int rpull_cfg_a;
+	unsigned int gpo_data_a;
+	unsigned int gpo_out_a;
+	unsigned int gpio_dir_a;
+	unsigned int gpi_stat_a;
+	bool has_bias_hole;
+};
 
 struct adp5585_gpio_dev {
 	struct gpio_chip gpio_chip;
+	const struct adp5585_gpio_chip *info;
 	struct regmap *regmap;
 };
 
+static int adp5585_gpio_bank(unsigned int off)
+{
+	return ADP5585_BANK(off);
+}
+
+static int adp5585_gpio_bit(unsigned int off)
+{
+	return ADP5585_BIT(off);
+}
+
+static int adp5589_gpio_bank(unsigned int off)
+{
+	return ADP5589_BANK(off);
+}
+
+static int adp5589_gpio_bit(unsigned int off)
+{
+	return ADP5589_BIT(off);
+}
+
 static int adp5585_gpio_get_direction(struct gpio_chip *chip, unsigned int off)
 {
 	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
 	unsigned int val;
 
-	regmap_read(adp5585_gpio->regmap, ADP5585_GPIO_DIRECTION_A + bank, &val);
+	regmap_read(adp5585_gpio->regmap, info->gpio_dir_a + info->bank(off), &val);
 
-	return val & bit ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
+	return val & info->bit(off) ? GPIO_LINE_DIRECTION_OUT : GPIO_LINE_DIRECTION_IN;
 }
 
 static int adp5585_gpio_direction_input(struct gpio_chip *chip, unsigned int off)
 {
 	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
 
-	return regmap_clear_bits(adp5585_gpio->regmap,
-				 ADP5585_GPIO_DIRECTION_A + bank, bit);
+	return regmap_clear_bits(adp5585_gpio->regmap, info->gpio_dir_a + info->bank(off),
+				 info->bit(off));
 }
 
 static int adp5585_gpio_direction_output(struct gpio_chip *chip, unsigned int off, int val)
 {
 	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	unsigned int bank = info->bank(off);
+	unsigned int bit = info->bit(off);
 	int ret;
 
-	ret = regmap_update_bits(adp5585_gpio->regmap,
-				 ADP5585_GPO_DATA_OUT_A + bank, bit,
-				 val ? bit : 0);
+	ret = regmap_update_bits(adp5585_gpio->regmap, info->gpo_data_a + bank,
+				 bit, val ? bit : 0);
 	if (ret)
 		return ret;
 
-	return regmap_set_bits(adp5585_gpio->regmap,
-			       ADP5585_GPIO_DIRECTION_A + bank, bit);
+	return regmap_set_bits(adp5585_gpio->regmap, info->gpio_dir_a + bank,
+			       bit);
 }
 
 static int adp5585_gpio_get_value(struct gpio_chip *chip, unsigned int off)
 {
 	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	unsigned int bank = info->bank(off);
+	unsigned int bit = info->bit(off);
 	unsigned int reg;
 	unsigned int val;
 
@@ -79,8 +129,8 @@ static int adp5585_gpio_get_value(struct gpio_chip *chip, unsigned int off)
 	 * .direction_input(), .direction_output() or .set() operations racing
 	 * with this.
 	 */
-	regmap_read(adp5585_gpio->regmap, ADP5585_GPIO_DIRECTION_A + bank, &val);
-	reg = val & bit ? ADP5585_GPO_DATA_OUT_A : ADP5585_GPI_STATUS_A;
+	regmap_read(adp5585_gpio->regmap, info->gpio_dir_a + bank, &val);
+	reg = val & bit ? info->gpo_data_a : info->gpi_stat_a;
 	regmap_read(adp5585_gpio->regmap, reg + bank, &val);
 
 	return !!(val & bit);
@@ -90,17 +140,17 @@ static int adp5585_gpio_set_value(struct gpio_chip *chip, unsigned int off,
 				  int val)
 {
 	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	unsigned int bit = adp5585_gpio->info->bit(off);
 
-	return regmap_update_bits(adp5585_gpio->regmap,
-				  ADP5585_GPO_DATA_OUT_A + bank,
+	return regmap_update_bits(adp5585_gpio->regmap, info->gpo_data_a + info->bank(off),
 				  bit, val ? bit : 0);
 }
 
 static int adp5585_gpio_set_bias(struct adp5585_gpio_dev *adp5585_gpio,
 				 unsigned int off, unsigned int bias)
 {
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
 	unsigned int bit, reg, mask, val;
 
 	/*
@@ -108,8 +158,10 @@ static int adp5585_gpio_set_bias(struct adp5585_gpio_dev *adp5585_gpio,
 	 * consecutive registers ADP5585_RPULL_CONFIG_*, with a hole of 4 bits
 	 * after R5.
 	 */
-	bit = off * 2 + (off > 5 ? 4 : 0);
-	reg = ADP5585_RPULL_CONFIG_A + bit / 8;
+	bit = off * 2;
+	if (info->has_bias_hole)
+		bit += (off > 5 ? 4 : 0);
+	reg = info->rpull_cfg_a + bit / 8;
 	mask = ADP5585_Rx_PULL_CFG_MASK << (bit % 8);
 	val = bias << (bit % 8);
 
@@ -119,22 +171,22 @@ static int adp5585_gpio_set_bias(struct adp5585_gpio_dev *adp5585_gpio,
 static int adp5585_gpio_set_drive(struct adp5585_gpio_dev *adp5585_gpio,
 				  unsigned int off, enum pin_config_param drive)
 {
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	unsigned int bit = adp5585_gpio->info->bit(off);
 
 	return regmap_update_bits(adp5585_gpio->regmap,
-				  ADP5585_GPO_OUT_MODE_A + bank, bit,
+				  info->gpo_out_a + info->bank(off), bit,
 				  drive == PIN_CONFIG_DRIVE_OPEN_DRAIN ? bit : 0);
 }
 
 static int adp5585_gpio_set_debounce(struct adp5585_gpio_dev *adp5585_gpio,
 				     unsigned int off, unsigned int debounce)
 {
-	unsigned int bank = ADP5585_BANK(off);
-	unsigned int bit = ADP5585_BIT(off);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	unsigned int bit = adp5585_gpio->info->bit(off);
 
 	return regmap_update_bits(adp5585_gpio->regmap,
-				  ADP5585_DEBOUNCE_DIS_A + bank, bit,
+				  info->debounce_dis_a + info->bank(off), bit,
 				  debounce ? 0 : bit);
 }
 
@@ -175,6 +227,7 @@ static int adp5585_gpio_set_config(struct gpio_chip *chip, unsigned int off,
 static int adp5585_gpio_probe(struct platform_device *pdev)
 {
 	struct adp5585_dev *adp5585 = dev_get_drvdata(pdev->dev.parent);
+	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct adp5585_gpio_dev *adp5585_gpio;
 	struct device *dev = &pdev->dev;
 	struct gpio_chip *gc;
@@ -186,6 +239,10 @@ static int adp5585_gpio_probe(struct platform_device *pdev)
 
 	adp5585_gpio->regmap = adp5585->regmap;
 
+	adp5585_gpio->info = (const struct adp5585_gpio_chip *)id->driver_data;
+	if (!adp5585_gpio->info)
+		return -ENODEV;
+
 	device_set_of_node_from_dev(dev, dev->parent);
 
 	gc = &adp5585_gpio->gpio_chip;
@@ -199,7 +256,7 @@ static int adp5585_gpio_probe(struct platform_device *pdev)
 	gc->can_sleep = true;
 
 	gc->base = -1;
-	gc->ngpio = ADP5585_GPIO_MAX;
+	gc->ngpio = adp5585_gpio->info->max_gpio;
 	gc->label = pdev->name;
 	gc->owner = THIS_MODULE;
 
@@ -211,8 +268,34 @@ static int adp5585_gpio_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct adp5585_gpio_chip adp5585_gpio_chip_info = {
+	.bank = adp5585_gpio_bank,
+	.bit = adp5585_gpio_bit,
+	.debounce_dis_a = ADP5585_DEBOUNCE_DIS_A,
+	.rpull_cfg_a = ADP5585_RPULL_CONFIG_A,
+	.gpo_data_a = ADP5585_GPO_DATA_OUT_A,
+	.gpo_out_a = ADP5585_GPO_OUT_MODE_A,
+	.gpio_dir_a = ADP5585_GPIO_DIRECTION_A,
+	.gpi_stat_a = ADP5585_GPI_STATUS_A,
+	.max_gpio = ADP5585_PIN_MAX,
+	.has_bias_hole = true,
+};
+
+static const struct adp5585_gpio_chip adp5589_gpio_chip_info = {
+	.bank = adp5589_gpio_bank,
+	.bit = adp5589_gpio_bit,
+	.debounce_dis_a = ADP5589_DEBOUNCE_DIS_A,
+	.rpull_cfg_a = ADP5589_RPULL_CONFIG_A,
+	.gpo_data_a = ADP5589_GPO_DATA_OUT_A,
+	.gpo_out_a = ADP5589_GPO_OUT_MODE_A,
+	.gpio_dir_a = ADP5589_GPIO_DIRECTION_A,
+	.gpi_stat_a = ADP5589_GPI_STATUS_A,
+	.max_gpio = ADP5589_PIN_MAX,
+};
+
 static const struct platform_device_id adp5585_gpio_id_table[] = {
-	{ "adp5585-gpio" },
+	{ "adp5585-gpio", (kernel_ulong_t)&adp5585_gpio_chip_info },
+	{ "adp5589-gpio", (kernel_ulong_t)&adp5589_gpio_chip_info },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(platform, adp5585_gpio_id_table);
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 6ecb90a6276c0f8f2c983c62c7268505d74b6583..d26f722cf31af5416eefecab5e542e66b01321f6 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -107,23 +107,23 @@
 
 #define ADP5585_MAX_REG			ADP5585_INT_EN
 
-/*
- * Bank 0 covers pins "GPIO 1/R0" to "GPIO 6/R5", numbered 0 to 5 by the
- * driver, and bank 1 covers pins "GPIO 7/C0" to "GPIO 11/C4", numbered 6 to
- * 10. Some variants of the ADP5585 don't support "GPIO 6/R5". As the driver
- * uses identical GPIO numbering for all variants to avoid confusion, GPIO 5 is
- * marked as reserved in the device tree for variants that don't support it.
- */
-#define ADP5585_BANK(n)			((n) >= 6 ? 1 : 0)
-#define ADP5585_BIT(n)			((n) >= 6 ? BIT((n) - 6) : BIT(n))
+#define ADP5585_PIN_MAX			11
 
 /* ADP5589 */
 #define		ADP5589_MAN_ID_VALUE		0x10
+#define ADP5589_GPI_STATUS_A		0x16
 #define ADP5589_GPI_STATUS_C		0x18
+#define ADP5589_RPULL_CONFIG_A		0x19
+#define ADP5589_DEBOUNCE_DIS_A		0x27
+#define ADP5589_GPO_DATA_OUT_A		0x2a
+#define ADP5589_GPO_OUT_MODE_A		0x2d
+#define		ADP5589_GPIO_DIRECTION_A	0x30
 #define ADP5589_PIN_CONFIG_D		0x4C
 #define ADP5589_INT_EN			0x4e
 #define ADP5589_MAX_REG			ADP5589_INT_EN
 
+#define ADP5589_PIN_MAX			19
+
 struct regmap;
 
 enum adp5585_variant {

-- 
2.50.0

[PATCH v6 10/20] pwm: adp5585: add support for adp5589

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Add support for the adp5589 I/O expander. From a PWM point of view it is
pretty similar to adp5585. Main difference is the address
of registers meaningful for configuring the PWM.

Acked-by: Uwe Kleine-König <ukleinek@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/pwm/pwm-adp5585.c   | 73 ++++++++++++++++++++++++++++++++++-----------
 include/linux/mfd/adp5585.h |  3 ++
 2 files changed, 59 insertions(+), 17 deletions(-)

diff --git a/drivers/pwm/pwm-adp5585.c b/drivers/pwm/pwm-adp5585.c
index c8821035b7c1412a55a642e6e8a46b66e693a5af..58f83f16134c0bb66f5a20c041622bf4e3905668 100644
--- a/drivers/pwm/pwm-adp5585.c
+++ b/drivers/pwm/pwm-adp5585.c
@@ -32,21 +32,33 @@
 #define ADP5585_PWM_MIN_PERIOD_NS	(2ULL * NSEC_PER_SEC / ADP5585_PWM_OSC_FREQ_HZ)
 #define ADP5585_PWM_MAX_PERIOD_NS	(2ULL * 0xffff * NSEC_PER_SEC / ADP5585_PWM_OSC_FREQ_HZ)
 
+struct adp5585_pwm_chip {
+	unsigned int pwm_cfg;
+	unsigned int pwm_offt_low;
+	unsigned int pwm_ont_low;
+};
+
+struct adp5585_pwm {
+	const struct adp5585_pwm_chip *info;
+	struct regmap *regmap;
+	unsigned int ext_cfg;
+};
+
 static int pwm_adp5585_request(struct pwm_chip *chip, struct pwm_device *pwm)
 {
-	struct regmap *regmap = pwmchip_get_drvdata(chip);
+	struct adp5585_pwm *adp5585_pwm = pwmchip_get_drvdata(chip);
 
 	/* Configure the R3 pin as PWM output. */
-	return regmap_update_bits(regmap, ADP5585_PIN_CONFIG_C,
+	return regmap_update_bits(adp5585_pwm->regmap, adp5585_pwm->ext_cfg,
 				  ADP5585_R3_EXTEND_CFG_MASK,
 				  ADP5585_R3_EXTEND_CFG_PWM_OUT);
 }
 
 static void pwm_adp5585_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
-	struct regmap *regmap = pwmchip_get_drvdata(chip);
+	struct adp5585_pwm *adp5585_pwm = pwmchip_get_drvdata(chip);
 
-	regmap_update_bits(regmap, ADP5585_PIN_CONFIG_C,
+	regmap_update_bits(adp5585_pwm->regmap, adp5585_pwm->ext_cfg,
 			   ADP5585_R3_EXTEND_CFG_MASK,
 			   ADP5585_R3_EXTEND_CFG_GPIO4);
 }
@@ -55,14 +67,16 @@ static int pwm_adp5585_apply(struct pwm_chip *chip,
 			     struct pwm_device *pwm,
 			     const struct pwm_state *state)
 {
-	struct regmap *regmap = pwmchip_get_drvdata(chip);
+	struct adp5585_pwm *adp5585_pwm = pwmchip_get_drvdata(chip);
+	const struct adp5585_pwm_chip *info = adp5585_pwm->info;
+	struct regmap *regmap = adp5585_pwm->regmap;
 	u64 period, duty_cycle;
 	u32 on, off;
 	__le16 val;
 	int ret;
 
 	if (!state->enabled) {
-		regmap_clear_bits(regmap, ADP5585_PWM_CFG, ADP5585_PWM_EN);
+		regmap_clear_bits(regmap, info->pwm_cfg, ADP5585_PWM_EN);
 		return 0;
 	}
 
@@ -83,41 +97,43 @@ static int pwm_adp5585_apply(struct pwm_chip *chip,
 	off = div_u64(period, NSEC_PER_SEC / ADP5585_PWM_OSC_FREQ_HZ) - on;
 
 	val = cpu_to_le16(off);
-	ret = regmap_bulk_write(regmap, ADP5585_PWM_OFFT_LOW, &val, 2);
+	ret = regmap_bulk_write(regmap, info->pwm_offt_low, &val, 2);
 	if (ret)
 		return ret;
 
 	val = cpu_to_le16(on);
-	ret = regmap_bulk_write(regmap, ADP5585_PWM_ONT_LOW, &val, 2);
+	ret = regmap_bulk_write(regmap, info->pwm_ont_low, &val, 2);
 	if (ret)
 		return ret;
 
 	/* Enable PWM in continuous mode and no external AND'ing. */
-	ret = regmap_update_bits(regmap, ADP5585_PWM_CFG,
+	ret = regmap_update_bits(regmap, info->pwm_cfg,
 				 ADP5585_PWM_IN_AND | ADP5585_PWM_MODE |
 				 ADP5585_PWM_EN, ADP5585_PWM_EN);
 	if (ret)
 		return ret;
 
-	return regmap_set_bits(regmap, ADP5585_PWM_CFG, ADP5585_PWM_EN);
+	return regmap_set_bits(regmap, info->pwm_cfg, ADP5585_PWM_EN);
 }
 
 static int pwm_adp5585_get_state(struct pwm_chip *chip,
 				 struct pwm_device *pwm,
 				 struct pwm_state *state)
 {
-	struct regmap *regmap = pwmchip_get_drvdata(chip);
+	struct adp5585_pwm *adp5585_pwm = pwmchip_get_drvdata(chip);
+	const struct adp5585_pwm_chip *info = adp5585_pwm->info;
+	struct regmap *regmap = adp5585_pwm->regmap;
 	unsigned int on, off;
 	unsigned int val;
 	__le16 on_off;
 	int ret;
 
-	ret = regmap_bulk_read(regmap, ADP5585_PWM_OFFT_LOW, &on_off, 2);
+	ret = regmap_bulk_read(regmap, info->pwm_offt_low, &on_off, 2);
 	if (ret)
 		return ret;
 	off = le16_to_cpu(on_off);
 
-	ret = regmap_bulk_read(regmap, ADP5585_PWM_ONT_LOW, &on_off, 2);
+	ret = regmap_bulk_read(regmap, info->pwm_ont_low, &on_off, 2);
 	if (ret)
 		return ret;
 	on = le16_to_cpu(on_off);
@@ -127,7 +143,7 @@ static int pwm_adp5585_get_state(struct pwm_chip *chip,
 
 	state->polarity = PWM_POLARITY_NORMAL;
 
-	regmap_read(regmap, ADP5585_PWM_CFG, &val);
+	regmap_read(regmap, info->pwm_cfg, &val);
 	state->enabled = !!(val & ADP5585_PWM_EN);
 
 	return 0;
@@ -142,18 +158,28 @@ static const struct pwm_ops adp5585_pwm_ops = {
 
 static int adp5585_pwm_probe(struct platform_device *pdev)
 {
+	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct device *dev = &pdev->dev;
 	struct adp5585_dev *adp5585 = dev_get_drvdata(dev->parent);
+	struct adp5585_pwm *adp5585_pwm;
 	struct pwm_chip *chip;
 	int ret;
 
-	chip = devm_pwmchip_alloc(dev, ADP5585_PWM_CHAN_NUM, 0);
+	chip = devm_pwmchip_alloc(dev, ADP5585_PWM_CHAN_NUM,
+				  sizeof(*adp5585_pwm));
 	if (IS_ERR(chip))
 		return PTR_ERR(chip);
 
+	adp5585_pwm = pwmchip_get_drvdata(chip);
+	adp5585_pwm->regmap = adp5585->regmap;
+	adp5585_pwm->ext_cfg = adp5585->regs->ext_cfg;
+
+	adp5585_pwm->info = (const struct adp5585_pwm_chip *)id->driver_data;
+	if (!adp5585_pwm->info)
+		return -ENODEV;
+
 	device_set_of_node_from_dev(dev, dev->parent);
 
-	pwmchip_set_drvdata(chip, adp5585->regmap);
 	chip->ops = &adp5585_pwm_ops;
 
 	ret = devm_pwmchip_add(dev, chip);
@@ -163,8 +189,21 @@ static int adp5585_pwm_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct adp5585_pwm_chip adp5589_pwm_chip_info = {
+	.pwm_cfg = ADP5585_PWM_CFG,
+	.pwm_offt_low = ADP5585_PWM_OFFT_LOW,
+	.pwm_ont_low = ADP5585_PWM_ONT_LOW,
+};
+
+static const struct adp5585_pwm_chip adp5585_pwm_chip_info = {
+	.pwm_cfg = ADP5589_PWM_CFG,
+	.pwm_offt_low = ADP5589_PWM_OFFT_LOW,
+	.pwm_ont_low = ADP5589_PWM_ONT_LOW,
+};
+
 static const struct platform_device_id adp5585_pwm_id_table[] = {
-	{ "adp5585-pwm" },
+	{ "adp5585-pwm", (kernel_ulong_t)&adp5585_pwm_chip_info },
+	{ "adp5589-pwm", (kernel_ulong_t)&adp5589_pwm_chip_info },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(platform, adp5585_pwm_id_table);
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index d26f722cf31af5416eefecab5e542e66b01321f6..77f7c74f084dde01e11816fb7ed099721b6ed78d 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -118,6 +118,9 @@
 #define ADP5589_GPO_DATA_OUT_A		0x2a
 #define ADP5589_GPO_OUT_MODE_A		0x2d
 #define		ADP5589_GPIO_DIRECTION_A	0x30
+#define ADP5589_PWM_OFFT_LOW		0x3e
+#define ADP5589_PWM_ONT_LOW		0x40
+#define ADP5589_PWM_CFG			0x42
 #define ADP5589_PIN_CONFIG_D		0x4C
 #define ADP5589_INT_EN			0x4e
 #define ADP5589_MAX_REG			ADP5589_INT_EN

-- 
2.50.0

[PATCH v6 11/20] dt-bindings: mfd: adp5585: add properties for input events

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Add properties related to input events. These devices can act as
keyboards and can support events either via a keymap Matrix or through
GPIs. Note that the device needs to be an interrupt controller for GPIs
based events.

We specifically need a property specifying the pins used by the keymap
matrix since these devices have no requirement for rows and columns to be
contiguous without holes which is enforced by the standard input
properties.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 .../devicetree/bindings/mfd/adi,adp5585.yaml       | 188 ++++++++++++++++++++-
 1 file changed, 186 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
index 9471af28419d820424745315ffb2129f7dd37581..b3bf2ed586104303fd078bd06683e4f0d3383575 100644
--- a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
+++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
@@ -49,6 +49,84 @@ properties:
   "#pwm-cells":
     const: 3
 
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+  poll-interval:
+    enum: [10, 20, 30, 40]
+    default: 10
+
+  adi,keypad-pins:
+    description: Specifies the pins used for the keypad matrix.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+
+  adi,unlock-events:
+    description:
+      Specifies a maximum of 2 events that can be used to unlock the keypad.
+      If this property is set, the keyboard will be locked and only unlocked
+      after these keys/gpis are pressed. The value 127 serves as a wildcard which
+      means any key can be used for unlocking.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+    items:
+      anyOf:
+        - minimum: 1
+          maximum: 88
+        - minimum: 97
+          maximum: 115
+        - const: 127
+
+  adi,unlock-trigger-sec:
+    description:
+      Defines the time in which the second unlock event must occur after the
+      first unlock event has occurred.
+    maximum: 7
+    default: 0
+
+  adi,reset1-events:
+    description:
+      Defines the trigger events (key/gpi presses) that can generate reset
+      conditions one the reset1 block.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 3
+
+  adi,reset2-events:
+    description:
+      Defines the trigger events (key/gpi presses) that can generate reset
+      conditions one the reset2 block.
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    minItems: 1
+    maxItems: 2
+
+  adi,reset1-active-high:
+    description: Sets the reset1 signal as active high.
+    type: boolean
+
+  adi,reset2-active-high:
+    description: Sets the reset2 signal as active high.
+    type: boolean
+
+  adi,rst-passthrough-enable:
+    description: Allows the RST pin to override (OR with) the reset1 signal.
+    type: boolean
+
+  adi,reset-trigger-ms:
+    description:
+      Defines the length of time that the reset events must be active before a
+      reset signal is generated. All events must be active at the same time for
+      the same duration.
+    enum: [0, 1000, 1500, 2000, 2500, 3000, 3500, 4000]
+    default: 0
+
+  adi,reset-pulse-width-us:
+    description: Defines the pulse width of the reset signals.
+    enum: [500, 1000, 2000, 10000]
+    default: 500
+
 patternProperties:
   "-hog(-[0-9]+)?$":
     type: object
@@ -56,11 +134,28 @@ patternProperties:
     required:
       - gpio-hog
 
+dependencies:
+  linux,keymap:
+    - adi,keypad-pins
+    - interrupts
+  interrupt-controller:
+    - interrupts
+  adi,unlock-trigger-sec:
+    - adi,unlock-events
+  adi,reset1-active-high:
+    - adi,reset1-events
+  adi,rst-passtrough-enable:
+    - adi,reset1-events
+  adi,reset2-active-high:
+    - adi,reset2-events
+
 required:
   - compatible
   - reg
 
 allOf:
+  - $ref: /schemas/input/matrix-keymap.yaml#
+  - $ref: /schemas/input/input.yaml#
   - if:
       properties:
         compatible:
@@ -68,8 +163,29 @@ allOf:
             const: adi,adp5585-01
     then:
       properties:
+        adi,unlock-events: false
+        adi,unlock-trigger-sec: false
         gpio-reserved-ranges: false
-
+        adi,keypad-pins:
+          minItems: 2
+          maxItems: 11
+          items:
+            minimum: 0
+            maximum: 10
+        adi,reset1-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 30
+              - minimum: 37
+                maximum: 47
+        adi,reset2-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 30
+              - minimum: 37
+                maximum: 47
   - if:
       properties:
         compatible:
@@ -81,6 +197,25 @@ allOf:
               - adi,adp5585-04
     then:
       properties:
+        adi,unlock-events: false
+        adi,unlock-trigger-sec: false
+        adi,keypad-pins:
+          minItems: 2
+          maxItems: 10
+          items:
+            enum: [0, 1, 2, 3, 4, 6, 7, 8, 9, 10]
+        adi,reset1-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 25
+              - enum: [37, 38, 39, 40, 41, 43, 44, 45, 46, 47]
+        adi,reset2-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 25
+              - enum: [37, 38, 39, 40, 41, 43, 44, 45, 46, 47]
         gpio-reserved-ranges:
           maxItems: 1
           items:
@@ -99,11 +234,33 @@ allOf:
     then:
       properties:
         gpio-reserved-ranges: false
+        adi,keypad-pins:
+          minItems: 2
+          maxItems: 19
+          items:
+            minimum: 0
+            maximum: 18
+        adi,reset1-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 88
+              - minimum: 97
+                maximum: 115
+        adi,reset2-events:
+          items:
+            anyOf:
+              - minimum: 1
+                maximum: 88
+              - minimum: 97
+                maximum: 115
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/input/input.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
     i2c {
         #address-cells = <1>;
         #size-cells = <0>;
@@ -119,6 +276,33 @@ examples:
             gpio-reserved-ranges = <5 1>;
 
             #pwm-cells = <3>;
+
+            interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-parent = <&gpio>;
+
+            adi,reset1-events = <1 43>;
+            adi,reset2-events = <2 3>;
+            adi,reset-trigger-ms = <2000>;
+
+            /*
+             * col0, col1, col2
+             * row0, row1, row2
+             */
+            adi,keypad-pins = <0 1 2 6 7 8>;
+
+            linux,keymap = <
+                MATRIX_KEY(0x00, 0x00, KEY_1)
+                MATRIX_KEY(0x00, 0x01, KEY_2)
+                MATRIX_KEY(0x00, 0x02, KEY_3)
+
+                MATRIX_KEY(0x01, 0x00, KEY_A)
+                MATRIX_KEY(0x01, 0x01, KEY_B)
+                MATRIX_KEY(0x01, 0x02, KEY_C)
+
+                MATRIX_KEY(0x02, 0x00, BTN_1)
+                MATRIX_KEY(0x02, 0x01, BTN_2)
+                MATRIX_KEY(0x02, 0x02, BTN_3)
+            >;
         };
     };
 

-- 
2.50.0

[PATCH v6 12/20] mfd: adp5585: Add support for event handling

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

These devices are capable of generate FIFO based events based on KEY or
GPI presses. Add support for handling these events. This is in
preparation of adding full support for keymap and gpis based events.

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 176 ++++++++++++++++++++++++++++++++++++++++++--
 include/linux/mfd/adp5585.h |  18 +++++
 2 files changed, 186 insertions(+), 8 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index ae12372bdde9141034b28731e22758948438cb31..ae2448697ef48fe84303de54dac1f49aab1da6d5 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/array_size.h>
+#include <linux/bitfield.h>
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
@@ -165,10 +166,16 @@ static const struct regmap_config adp5589_regmap_config_template = {
 
 static const struct adp5585_regs adp5585_regs = {
 	.ext_cfg = ADP5585_PIN_CONFIG_C,
+	.int_en = ADP5585_INT_EN,
+	.gen_cfg = ADP5585_GENERAL_CFG,
+	.poll_ptime_cfg = ADP5585_POLL_PTIME_CFG,
 };
 
 static const struct adp5585_regs adp5589_regs = {
 	.ext_cfg = ADP5589_PIN_CONFIG_D,
+	.int_en = ADP5589_INT_EN,
+	.gen_cfg = ADP5589_GENERAL_CFG,
+	.poll_ptime_cfg = ADP5589_POLL_PTIME_CFG,
 };
 
 static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp5585)
@@ -241,6 +248,146 @@ static void adp5585_osc_disable(void *data)
 	regmap_write(adp5585->regmap, ADP5585_GENERAL_CFG, 0);
 }
 
+static void adp5585_report_events(struct adp5585_dev *adp5585, int ev_cnt)
+{
+	unsigned int i;
+
+	for (i = 0; i < ev_cnt; i++) {
+		unsigned long key_val, key_press;
+		unsigned int key;
+		int ret;
+
+		ret = regmap_read(adp5585->regmap, ADP5585_FIFO_1 + i, &key);
+		if (ret)
+			return;
+
+		key_val = FIELD_GET(ADP5585_KEY_EVENT_MASK, key);
+		key_press = FIELD_GET(ADP5585_KEV_EV_PRESS_MASK, key);
+
+		blocking_notifier_call_chain(&adp5585->event_notifier, key_val, (void *)key_press);
+	}
+}
+
+static irqreturn_t adp5585_irq(int irq, void *data)
+{
+	struct adp5585_dev *adp5585 = data;
+	unsigned int status, ev_cnt;
+	int ret;
+
+	ret = regmap_read(adp5585->regmap, ADP5585_INT_STATUS, &status);
+	if (ret)
+		return IRQ_HANDLED;
+
+	if (status & ADP5585_OVRFLOW_INT)
+		dev_err_ratelimited(adp5585->dev, "Event overflow error\n");
+
+	if (!(status & ADP5585_EVENT_INT))
+		goto out_irq;
+
+	ret = regmap_read(adp5585->regmap, ADP5585_STATUS, &ev_cnt);
+	if (ret)
+		goto out_irq;
+
+	ev_cnt = FIELD_GET(ADP5585_EC_MASK, ev_cnt);
+	if (!ev_cnt)
+		goto out_irq;
+
+	adp5585_report_events(adp5585, ev_cnt);
+out_irq:
+	regmap_write(adp5585->regmap, ADP5585_INT_STATUS, status);
+	return IRQ_HANDLED;
+}
+
+static int adp5585_setup(struct adp5585_dev *adp5585)
+{
+	const struct adp5585_regs *regs = adp5585->regs;
+	unsigned int reg_val, i;
+	int ret;
+
+	/* Clear any possible event by reading all the FIFO entries */
+	for (i = 0; i < ADP5585_EV_MAX; i++) {
+		ret = regmap_read(adp5585->regmap, ADP5585_FIFO_1 + i, &reg_val);
+		if (ret)
+			return ret;
+	}
+
+	ret = regmap_write(adp5585->regmap, regs->poll_ptime_cfg, adp5585->ev_poll_time);
+	if (ret)
+		return ret;
+
+	/*
+	 * Enable the internal oscillator, as it's shared between multiple
+	 * functions.
+	 */
+	ret = regmap_write(adp5585->regmap, regs->gen_cfg,
+			   ADP5585_OSC_FREQ_500KHZ | ADP5585_INT_CFG | ADP5585_OSC_EN);
+	if (ret)
+		return ret;
+
+	return devm_add_action_or_reset(adp5585->dev, adp5585_osc_disable, adp5585);
+}
+
+static int adp5585_parse_fw(struct adp5585_dev *adp5585)
+{
+	unsigned int prop_val;
+	int ret;
+
+	ret = device_property_read_u32(adp5585->dev, "poll-interval", &prop_val);
+	if (!ret) {
+		adp5585->ev_poll_time = prop_val / 10 - 1;
+		/*
+		 * ev_poll_time is the raw value to be written on the register and 0 to 3 are the
+		 * valid values.
+		 */
+		if (adp5585->ev_poll_time > 3)
+			return dev_err_probe(adp5585->dev, -EINVAL,
+					     "Invalid value(%u) for poll-interval\n", prop_val);
+	}
+
+	return 0;
+}
+
+static void adp5585_irq_disable(void *data)
+{
+	struct adp5585_dev *adp5585 = data;
+
+	regmap_write(adp5585->regmap, adp5585->regs->int_en, 0);
+}
+
+static int adp5585_irq_enable(struct i2c_client *i2c,
+			      struct adp5585_dev *adp5585)
+{
+	const struct adp5585_regs *regs = adp5585->regs;
+	unsigned int stat;
+	int ret;
+
+	if (i2c->irq <= 0)
+		return 0;
+
+	ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, adp5585_irq,
+					IRQF_ONESHOT, i2c->name, adp5585);
+	if (ret)
+		return ret;
+
+	/*
+	 * Clear any possible outstanding interrupt before enabling them. We do that by reading
+	 * the status register and writing back the same value.
+	 */
+	ret = regmap_read(adp5585->regmap, ADP5585_INT_STATUS, &stat);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(adp5585->regmap, ADP5585_INT_STATUS, stat);
+	if (ret)
+		return ret;
+
+	ret = regmap_write(adp5585->regmap, regs->int_en, ADP5585_OVRFLOW_IEN | ADP5585_EVENT_IEN);
+	if (ret)
+		return ret;
+
+	return devm_add_action_or_reset(&i2c->dev, adp5585_irq_disable, adp5585);
+}
+
 static int adp5585_i2c_probe(struct i2c_client *i2c)
 {
 	struct regmap_config *regmap_config;
@@ -254,6 +401,8 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 
 	i2c_set_clientdata(i2c, adp5585);
 	adp5585->dev = &i2c->dev;
+	adp5585->irq = i2c->irq;
+	BLOCKING_INIT_NOTIFIER_HEAD(&adp5585->event_notifier);
 
 	adp5585->variant = (enum adp5585_variant)(uintptr_t)i2c_get_match_data(i2c);
 	if (!adp5585->variant)
@@ -278,25 +427,28 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return dev_err_probe(&i2c->dev, -ENODEV,
 				     "Invalid device ID 0x%02x\n", id);
 
-	/*
-	 * Enable the internal oscillator, as it's shared between multiple
-	 * functions.
-	 */
-	ret = regmap_set_bits(adp5585->regmap, ADP5585_GENERAL_CFG, ADP5585_OSC_EN);
+	ret = adp5585_parse_fw(adp5585);
 	if (ret)
 		return ret;
 
-	ret = devm_add_action_or_reset(&i2c->dev, adp5585_osc_disable, adp5585);
+	ret = adp5585_setup(adp5585);
 	if (ret)
 		return ret;
 
-	return adp5585_add_devices(adp5585);
+	ret = adp5585_add_devices(adp5585);
+	if (ret)
+		return ret;
+
+	return adp5585_irq_enable(i2c, adp5585);
 }
 
 static int adp5585_suspend(struct device *dev)
 {
 	struct adp5585_dev *adp5585 = dev_get_drvdata(dev);
 
+	if (adp5585->irq)
+		disable_irq(adp5585->irq);
+
 	regcache_cache_only(adp5585->regmap, true);
 
 	return 0;
@@ -305,11 +457,19 @@ static int adp5585_suspend(struct device *dev)
 static int adp5585_resume(struct device *dev)
 {
 	struct adp5585_dev *adp5585 = dev_get_drvdata(dev);
+	int ret;
 
 	regcache_cache_only(adp5585->regmap, false);
 	regcache_mark_dirty(adp5585->regmap);
 
-	return regcache_sync(adp5585->regmap);
+	ret = regcache_sync(adp5585->regmap);
+	if (ret)
+		return ret;
+
+	if (adp5585->irq)
+		enable_irq(adp5585->irq);
+
+	return 0;
 }
 
 static DEFINE_SIMPLE_DEV_PM_OPS(adp5585_pm, adp5585_suspend, adp5585_resume);
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 77f7c74f084dde01e11816fb7ed099721b6ed78d..43a33a3d3f5a1b4fe3a9c46335d29dee6e9d60f5 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -10,13 +10,20 @@
 #define __MFD_ADP5585_H_
 
 #include <linux/bits.h>
+#include <linux/notifier.h>
 
 #define ADP5585_ID			0x00
 #define		ADP5585_MAN_ID_VALUE		0x20
 #define		ADP5585_MAN_ID_MASK		GENMASK(7, 4)
+#define		ADP5585_REV_ID_MASK		GENMASK(3, 0)
 #define ADP5585_INT_STATUS		0x01
+#define		ADP5585_OVRFLOW_INT		BIT(2)
+#define		ADP5585_EVENT_INT		BIT(0)
 #define ADP5585_STATUS			0x02
+#define		ADP5585_EC_MASK			GENMASK(4, 0)
 #define ADP5585_FIFO_1			0x03
+#define		ADP5585_KEV_EV_PRESS_MASK	BIT(7)
+#define		ADP5585_KEY_EVENT_MASK		GENMASK(6, 0)
 #define ADP5585_FIFO_2			0x04
 #define ADP5585_FIFO_3			0x05
 #define ADP5585_FIFO_4			0x06
@@ -32,6 +39,7 @@
 #define ADP5585_FIFO_14			0x10
 #define ADP5585_FIFO_15			0x11
 #define ADP5585_FIFO_16			0x12
+#define		ADP5585_EV_MAX			(ADP5585_FIFO_16 - ADP5585_FIFO_1 + 1)
 #define ADP5585_GPI_INT_STAT_A		0x13
 #define ADP5585_GPI_INT_STAT_B		0x14
 #define ADP5585_GPI_STATUS_A		0x15
@@ -104,6 +112,8 @@
 #define		ADP5585_INT_CFG			BIT(1)
 #define		ADP5585_RST_CFG			BIT(0)
 #define ADP5585_INT_EN			0x3c
+#define		ADP5585_OVRFLOW_IEN		BIT(2)
+#define		ADP5585_EVENT_IEN		BIT(0)
 
 #define ADP5585_MAX_REG			ADP5585_INT_EN
 
@@ -121,7 +131,9 @@
 #define ADP5589_PWM_OFFT_LOW		0x3e
 #define ADP5589_PWM_ONT_LOW		0x40
 #define ADP5589_PWM_CFG			0x42
+#define ADP5589_POLL_PTIME_CFG		0x48
 #define ADP5589_PIN_CONFIG_D		0x4C
+#define ADP5589_GENERAL_CFG		0x4d
 #define ADP5589_INT_EN			0x4e
 #define ADP5589_MAX_REG			ADP5589_INT_EN
 
@@ -142,15 +154,21 @@ enum adp5585_variant {
 };
 
 struct adp5585_regs {
+	unsigned int gen_cfg;
 	unsigned int ext_cfg;
+	unsigned int int_en;
+	unsigned int poll_ptime_cfg;
 };
 
 struct adp5585_dev {
 	struct device *dev;
 	struct regmap *regmap;
 	const struct adp5585_regs *regs;
+	struct blocking_notifier_head event_notifier;
 	enum adp5585_variant variant;
 	unsigned int id;
+	int irq;
+	unsigned int ev_poll_time;
 };
 
 #endif

-- 
2.50.0

[PATCH v6 13/20] mfd: adp5585: Support reset and unlock events

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The ADP558x family of devices can be programmed to respond to some
especial events, In case of the unlock events, one can lock the keypad
and use KEYS or GPIs events to unlock it. For the reset events, one can
again use a combinations of GPIs/KEYs in order to generate an event that
will trigger the device to generate an output reset pulse.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 274 +++++++++++++++++++++++++++++++++++++++++++-
 include/linux/mfd/adp5585.h |  40 +++++++
 2 files changed, 312 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index ae2448697ef48fe84303de54dac1f49aab1da6d5..30014deee41fa9d0b0f663dccd2ecb24af999376 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -169,6 +169,9 @@ static const struct adp5585_regs adp5585_regs = {
 	.int_en = ADP5585_INT_EN,
 	.gen_cfg = ADP5585_GENERAL_CFG,
 	.poll_ptime_cfg = ADP5585_POLL_PTIME_CFG,
+	.reset_cfg = ADP5585_RESET_CFG,
+	.reset1_event_a = ADP5585_RESET1_EVENT_A,
+	.reset2_event_a = ADP5585_RESET2_EVENT_A,
 };
 
 static const struct adp5585_regs adp5589_regs = {
@@ -176,8 +179,54 @@ static const struct adp5585_regs adp5589_regs = {
 	.int_en = ADP5589_INT_EN,
 	.gen_cfg = ADP5589_GENERAL_CFG,
 	.poll_ptime_cfg = ADP5589_POLL_PTIME_CFG,
+	.reset_cfg = ADP5589_RESET_CFG,
+	.reset1_event_a = ADP5589_RESET1_EVENT_A,
+	.reset2_event_a = ADP5589_RESET2_EVENT_A,
 };
 
+static int adp5585_validate_event(const struct adp5585_dev *adp5585, unsigned int ev)
+{
+	if (adp5585->has_pin6) {
+		if (ev >= ADP5585_ROW5_KEY_EVENT_START && ev <= ADP5585_ROW5_KEY_EVENT_END)
+			return 0;
+		if (ev >= ADP5585_GPI_EVENT_START && ev <= ADP5585_GPI_EVENT_END)
+			return 0;
+
+		return dev_err_probe(adp5585->dev, -EINVAL,
+				     "Invalid unlock/reset event(%u) for this device\n", ev);
+	}
+
+	if (ev >= ADP5585_KEY_EVENT_START && ev <= ADP5585_KEY_EVENT_END)
+		return 0;
+	if (ev >= ADP5585_GPI_EVENT_START && ev <= ADP5585_GPI_EVENT_END) {
+		/*
+		 * Some variants of the adp5585 do not have the Row 5
+		 * (meaning pin 6 or GPIO 6) available. Instead that pin serves
+		 * as a reset pin. So, we need to make sure no event is
+		 * configured for it.
+		 */
+		if (ev == (ADP5585_GPI_EVENT_START + 5))
+			return dev_err_probe(adp5585->dev, -EINVAL,
+					     "Invalid unlock/reset event(%u). R5 not available\n",
+					     ev);
+		return 0;
+	}
+
+	return dev_err_probe(adp5585->dev, -EINVAL,
+			     "Invalid unlock/reset event(%u) for this device\n", ev);
+}
+
+static int adp5589_validate_event(const struct adp5585_dev *adp5585, unsigned int ev)
+{
+	if (ev >= ADP5589_KEY_EVENT_START && ev <= ADP5589_KEY_EVENT_END)
+		return 0;
+	if (ev >= ADP5589_GPI_EVENT_START && ev <= ADP5589_GPI_EVENT_END)
+		return 0;
+
+	return dev_err_probe(adp5585->dev, -EINVAL,
+			     "Invalid unlock/reset event(%u) for this device\n", ev);
+}
+
 static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp5585)
 {
 	struct regmap_config *regmap_config;
@@ -190,6 +239,8 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	case ADP5585_04:
 		adp5585->id = ADP5585_MAN_ID_VALUE;
 		adp5585->regs = &adp5585_regs;
+		if (adp5585->variant == ADP5585_01)
+			adp5585->has_pin6 = true;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
 					     sizeof(*regmap_config), GFP_KERNEL);
 		break;
@@ -198,6 +249,8 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	case ADP5589_02:
 		adp5585->id = ADP5589_MAN_ID_VALUE;
 		adp5585->regs = &adp5589_regs;
+		adp5585->has_unlock = true;
+		adp5585->has_pin6 = true;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5589_regmap_config_template,
 					     sizeof(*regmap_config), GFP_KERNEL);
 		break;
@@ -213,6 +266,167 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	return regmap_config;
 }
 
+static int adp5585_parse_ev_array(const struct adp5585_dev *adp5585, const char *prop, u32 *events,
+				  u32 *n_events, u32 max_evs, bool reset_ev)
+{
+	struct device *dev = adp5585->dev;
+	unsigned int ev;
+	int ret;
+
+	/*
+	 * The device has the capability of handling special events through GPIs or a Keypad:
+	 *  unlock events: Unlock the keymap until one of the configured events is detected.
+	 *  reset events: Generate a reset pulse when one of the configured events is detected.
+	 */
+	ret = device_property_count_u32(dev, prop);
+	if (ret < 0)
+		return 0;
+
+	*n_events = ret;
+
+	if (!adp5585->has_unlock && !reset_ev)
+		return dev_err_probe(dev, -EOPNOTSUPP, "Unlock keys not supported\n");
+
+	if (*n_events > max_evs)
+		return dev_err_probe(dev, -EINVAL,
+				     "Invalid number of keys(%u > %u) for %s\n",
+				     *n_events, max_evs, prop);
+
+	ret = device_property_read_u32_array(dev, prop, events, *n_events);
+	if (ret)
+		return ret;
+
+	for (ev = 0; ev < *n_events; ev++) {
+		if (!reset_ev && events[ev] == ADP5589_UNLOCK_WILDCARD)
+			continue;
+
+		if (adp5585->id == ADP5585_MAN_ID_VALUE)
+			ret = adp5585_validate_event(adp5585, events[ev]);
+		else
+			ret = adp5589_validate_event(adp5585, events[ev]);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int adp5585_unlock_ev_parse(struct adp5585_dev *adp5585)
+{
+	struct device *dev = adp5585->dev;
+	int ret;
+
+	ret = adp5585_parse_ev_array(adp5585, "adi,unlock-events", adp5585->unlock_keys,
+				     &adp5585->nkeys_unlock, ARRAY_SIZE(adp5585->unlock_keys),
+				     false);
+	if (ret)
+		return ret;
+	if (!adp5585->nkeys_unlock)
+		return 0;
+
+	ret = device_property_read_u32(dev, "adi,unlock-trigger-sec", &adp5585->unlock_time);
+	if (!ret) {
+		if (adp5585->unlock_time > ADP5585_MAX_UNLOCK_TIME_SEC)
+			return dev_err_probe(dev, -EINVAL,
+					     "Invalid unlock time(%u > %d)\n",
+					     adp5585->unlock_time,
+					     ADP5585_MAX_UNLOCK_TIME_SEC);
+	}
+
+	return 0;
+}
+
+static int adp5585_reset_ev_parse(struct adp5585_dev *adp5585)
+{
+	struct device *dev = adp5585->dev;
+	u32 prop_val;
+	int ret;
+
+	ret = adp5585_parse_ev_array(adp5585, "adi,reset1-events", adp5585->reset1_keys,
+				     &adp5585->nkeys_reset1,
+				     ARRAY_SIZE(adp5585->reset1_keys), true);
+	if (ret)
+		return ret;
+
+	ret = adp5585_parse_ev_array(adp5585, "adi,reset2-events",
+				     adp5585->reset2_keys,
+				     &adp5585->nkeys_reset2,
+				     ARRAY_SIZE(adp5585->reset2_keys), true);
+	if (ret)
+		return ret;
+
+	if (!adp5585->nkeys_reset1 && !adp5585->nkeys_reset2)
+		return 0;
+
+	if (adp5585->nkeys_reset1 && device_property_read_bool(dev, "adi,reset1-active-high"))
+		adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET1_POL, 1);
+
+	if (adp5585->nkeys_reset2 && device_property_read_bool(dev, "adi,reset2-active-high"))
+		adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET2_POL, 1);
+
+	if (device_property_read_bool(dev, "adi,rst-passthrough-enable"))
+		adp5585->reset_cfg |= FIELD_PREP(ADP5585_RST_PASSTHRU_EN, 1);
+
+	ret = device_property_read_u32(dev, "adi,reset-trigger-ms", &prop_val);
+	if (!ret) {
+		switch (prop_val) {
+		case 0:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 0);
+			break;
+		case 1000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 1);
+			break;
+		case 1500:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 2);
+			break;
+		case 2000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 3);
+			break;
+		case 2500:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 4);
+			break;
+		case 3000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 5);
+			break;
+		case 3500:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 6);
+			break;
+		case 4000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_RESET_TRIG_TIME, 7);
+			break;
+		default:
+			return dev_err_probe(dev, -EINVAL,
+					     "Invalid value(%u) for adi,reset-trigger-ms\n",
+					     prop_val);
+		}
+	}
+
+	ret = device_property_read_u32(dev, "adi,reset-pulse-width-us", &prop_val);
+	if (!ret) {
+		switch (prop_val) {
+		case 500:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_PULSE_WIDTH, 0);
+			break;
+		case 1000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_PULSE_WIDTH, 1);
+			break;
+		case 2000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_PULSE_WIDTH, 2);
+			break;
+		case 10000:
+			adp5585->reset_cfg |= FIELD_PREP(ADP5585_PULSE_WIDTH, 3);
+			break;
+		default:
+			return dev_err_probe(dev, -EINVAL,
+					     "Invalid value(%u) for adi,reset-pulse-width-us\n",
+					     prop_val);
+		}
+		return ret;
+	}
+
+	return 0;
+}
+
 static int adp5585_add_devices(const struct adp5585_dev *adp5585)
 {
 	struct device *dev = adp5585->dev;
@@ -301,9 +515,61 @@ static irqreturn_t adp5585_irq(int irq, void *data)
 static int adp5585_setup(struct adp5585_dev *adp5585)
 {
 	const struct adp5585_regs *regs = adp5585->regs;
-	unsigned int reg_val, i;
+	unsigned int reg_val = 0, i;
 	int ret;
 
+	/* Configure the device with reset and unlock events */
+	for (i = 0; i < adp5585->nkeys_unlock; i++) {
+		ret = regmap_write(adp5585->regmap, ADP5589_UNLOCK1 + i,
+				   adp5585->unlock_keys[i] | ADP5589_UNLOCK_EV_PRESS);
+		if (ret)
+			return ret;
+	}
+
+	if (adp5585->nkeys_unlock) {
+		ret = regmap_update_bits(adp5585->regmap, ADP5589_UNLOCK_TIMERS,
+					 ADP5589_UNLOCK_TIMER, adp5585->unlock_time);
+		if (ret)
+			return ret;
+
+		ret = regmap_set_bits(adp5585->regmap, ADP5589_LOCK_CFG, ADP5589_LOCK_EN);
+		if (ret)
+			return ret;
+	}
+
+	for (i = 0; i < adp5585->nkeys_reset1; i++) {
+		ret = regmap_write(adp5585->regmap, regs->reset1_event_a + i,
+				   adp5585->reset1_keys[i] | ADP5585_RESET_EV_PRESS);
+		if (ret)
+			return ret;
+	}
+
+	for (i = 0; i < adp5585->nkeys_reset2; i++) {
+		ret = regmap_write(adp5585->regmap, regs->reset2_event_a + i,
+				   adp5585->reset2_keys[i] | ADP5585_RESET_EV_PRESS);
+		if (ret)
+			return ret;
+	}
+
+	if (adp5585->nkeys_reset1 || adp5585->nkeys_reset2) {
+		ret = regmap_write(adp5585->regmap, regs->reset_cfg, adp5585->reset_cfg);
+		if (ret)
+			return ret;
+
+		/* If there's a reset1 event, then R4 is used as an output for the reset signal */
+		if (adp5585->nkeys_reset1)
+			reg_val = ADP5585_R4_EXTEND_CFG_RESET1;
+		/* If there's a reset2 event, then C4 is used as an output for the reset signal */
+		if (adp5585->nkeys_reset2)
+			reg_val |= ADP5585_C4_EXTEND_CFG_RESET2;
+
+		ret = regmap_update_bits(adp5585->regmap, regs->ext_cfg,
+					 ADP5585_C4_EXTEND_CFG_MASK | ADP5585_R4_EXTEND_CFG_MASK,
+					 reg_val);
+		if (ret)
+			return ret;
+	}
+
 	/* Clear any possible event by reading all the FIFO entries */
 	for (i = 0; i < ADP5585_EV_MAX; i++) {
 		ret = regmap_read(adp5585->regmap, ADP5585_FIFO_1 + i, &reg_val);
@@ -344,7 +610,11 @@ static int adp5585_parse_fw(struct adp5585_dev *adp5585)
 					     "Invalid value(%u) for poll-interval\n", prop_val);
 	}
 
-	return 0;
+	ret = adp5585_unlock_ev_parse(adp5585);
+	if (ret)
+		return ret;
+
+	return adp5585_reset_ev_parse(adp5585);
 }
 
 static void adp5585_irq_disable(void *data)
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 43a33a3d3f5a1b4fe3a9c46335d29dee6e9d60f5..db483ef9693a41d29a36910952e7a0bc54f86631 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -68,6 +68,7 @@
 #define ADP5585_GPIO_DIRECTION_A	0x27
 #define ADP5585_GPIO_DIRECTION_B	0x28
 #define ADP5585_RESET1_EVENT_A		0x29
+#define		ADP5585_RESET_EV_PRESS		BIT(7)
 #define ADP5585_RESET1_EVENT_B		0x2a
 #define ADP5585_RESET1_EVENT_C		0x2b
 #define ADP5585_RESET2_EVENT_A		0x2c
@@ -118,6 +119,13 @@
 #define ADP5585_MAX_REG			ADP5585_INT_EN
 
 #define ADP5585_PIN_MAX			11
+#define ADP5585_MAX_UNLOCK_TIME_SEC	7
+#define ADP5585_KEY_EVENT_START		1
+#define ADP5585_KEY_EVENT_END		25
+#define ADP5585_GPI_EVENT_START		37
+#define ADP5585_GPI_EVENT_END		47
+#define ADP5585_ROW5_KEY_EVENT_START	1
+#define ADP5585_ROW5_KEY_EVENT_END	30
 
 /* ADP5589 */
 #define		ADP5589_MAN_ID_VALUE		0x10
@@ -128,6 +136,20 @@
 #define ADP5589_GPO_DATA_OUT_A		0x2a
 #define ADP5589_GPO_OUT_MODE_A		0x2d
 #define		ADP5589_GPIO_DIRECTION_A	0x30
+#define ADP5589_UNLOCK1			0x33
+#define		ADP5589_UNLOCK_EV_PRESS		BIT(7)
+#define ADP5589_UNLOCK_TIMERS		0x36
+#define		ADP5589_UNLOCK_TIMER		GENMASK(2, 0)
+#define ADP5589_LOCK_CFG		0x37
+#define		ADP5589_LOCK_EN			BIT(0)
+#define ADP5589_RESET1_EVENT_A		0x38
+#define ADP5589_RESET2_EVENT_A		0x3B
+#define ADP5589_RESET_CFG		0x3D
+#define		ADP5585_RESET2_POL		BIT(7)
+#define		ADP5585_RESET1_POL		BIT(6)
+#define		ADP5585_RST_PASSTHRU_EN		BIT(5)
+#define		ADP5585_RESET_TRIG_TIME		GENMASK(4, 2)
+#define		ADP5585_PULSE_WIDTH		GENMASK(1, 0)
 #define ADP5589_PWM_OFFT_LOW		0x3e
 #define ADP5589_PWM_ONT_LOW		0x40
 #define ADP5589_PWM_CFG			0x42
@@ -138,6 +160,11 @@
 #define ADP5589_MAX_REG			ADP5589_INT_EN
 
 #define ADP5589_PIN_MAX			19
+#define ADP5589_KEY_EVENT_START		1
+#define ADP5589_KEY_EVENT_END		88
+#define ADP5589_GPI_EVENT_START		97
+#define ADP5589_GPI_EVENT_END		115
+#define ADP5589_UNLOCK_WILDCARD		127
 
 struct regmap;
 
@@ -158,6 +185,9 @@ struct adp5585_regs {
 	unsigned int ext_cfg;
 	unsigned int int_en;
 	unsigned int poll_ptime_cfg;
+	unsigned int reset_cfg;
+	unsigned int reset1_event_a;
+	unsigned int reset2_event_a;
 };
 
 struct adp5585_dev {
@@ -167,8 +197,18 @@ struct adp5585_dev {
 	struct blocking_notifier_head event_notifier;
 	enum adp5585_variant variant;
 	unsigned int id;
+	bool has_unlock;
+	bool has_pin6;
 	int irq;
 	unsigned int ev_poll_time;
+	unsigned int unlock_time;
+	unsigned int unlock_keys[2];
+	unsigned int nkeys_unlock;
+	unsigned int reset1_keys[3];
+	unsigned int nkeys_reset1;
+	unsigned int reset2_keys[2];
+	unsigned int nkeys_reset2;
+	u8 reset_cfg;
 };
 
 #endif

-- 
2.50.0

[PATCH v6 14/20] mfd: adp5585: Add support for input devices

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The ADP558x family supports a built in keypad matrix decoder which can
be added as an Input device. In order to both support the Input and the
GPIO device, we need to create a bitmap of the supported pins and track
their usage since they can either be used as GPIOs (GPIs) or as part of
the keymap.

We also need to mark special pins busy in case some features are being
used (ex: pwm or reset events).

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c       | 31 +++++++++++++++++++++++++++++++
 include/linux/mfd/adp5585.h | 10 ++++++++++
 2 files changed, 41 insertions(+)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 30014deee41fa9d0b0f663dccd2ecb24af999376..8f0fd737442611e00e61ea992dd6437dbaf31292 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -22,17 +22,20 @@
 enum {
 	ADP5585_DEV_GPIO,
 	ADP5585_DEV_PWM,
+	ADP5585_DEV_INPUT,
 	ADP5585_DEV_MAX
 };
 
 static const struct mfd_cell adp5585_devs[ADP5585_DEV_MAX] = {
 	MFD_CELL_NAME("adp5585-gpio"),
 	MFD_CELL_NAME("adp5585-pwm"),
+	MFD_CELL_NAME("adp5585-keys"),
 };
 
 static const struct mfd_cell adp5589_devs[] = {
 	MFD_CELL_NAME("adp5589-gpio"),
 	MFD_CELL_NAME("adp5589-pwm"),
+	MFD_CELL_NAME("adp5589-keys"),
 };
 
 static const struct regmap_range adp5585_volatile_ranges[] = {
@@ -172,6 +175,7 @@ static const struct adp5585_regs adp5585_regs = {
 	.reset_cfg = ADP5585_RESET_CFG,
 	.reset1_event_a = ADP5585_RESET1_EVENT_A,
 	.reset2_event_a = ADP5585_RESET2_EVENT_A,
+	.pin_cfg_a = ADP5585_PIN_CONFIG_A,
 };
 
 static const struct adp5585_regs adp5589_regs = {
@@ -182,6 +186,7 @@ static const struct adp5585_regs adp5589_regs = {
 	.reset_cfg = ADP5589_RESET_CFG,
 	.reset1_event_a = ADP5589_RESET1_EVENT_A,
 	.reset2_event_a = ADP5589_RESET2_EVENT_A,
+	.pin_cfg_a = ADP5589_PIN_CONFIG_A,
 };
 
 static int adp5585_validate_event(const struct adp5585_dev *adp5585, unsigned int ev)
@@ -239,6 +244,8 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 	case ADP5585_04:
 		adp5585->id = ADP5585_MAN_ID_VALUE;
 		adp5585->regs = &adp5585_regs;
+		adp5585->n_pins = ADP5585_PIN_MAX;
+		adp5585->reset2_out = ADP5585_RESET2_OUT;
 		if (adp5585->variant == ADP5585_01)
 			adp5585->has_pin6 = true;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5585_regmap_config_template,
@@ -251,6 +258,8 @@ static struct regmap_config *adp5585_fill_variant_config(struct adp5585_dev *adp
 		adp5585->regs = &adp5589_regs;
 		adp5585->has_unlock = true;
 		adp5585->has_pin6 = true;
+		adp5585->n_pins = ADP5589_PIN_MAX;
+		adp5585->reset2_out = ADP5589_RESET2_OUT;
 		regmap_config = devm_kmemdup(adp5585->dev, &adp5589_regmap_config_template,
 					     sizeof(*regmap_config), GFP_KERNEL);
 		break;
@@ -439,6 +448,8 @@ static int adp5585_add_devices(const struct adp5585_dev *adp5585)
 		cells = adp5589_devs;
 
 	if (device_property_present(dev, "#pwm-cells")) {
+		/* Make sure the PWM output pin is not used by the GPIO or INPUT devices */
+		__set_bit(ADP5585_PWM_OUT, adp5585->pin_usage);
 		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
 					   &cells[ADP5585_DEV_PWM], 1, NULL, 0, NULL);
 		if (ret)
@@ -452,6 +463,13 @@ static int adp5585_add_devices(const struct adp5585_dev *adp5585)
 			return dev_err_probe(dev, ret, "Failed to add GPIO device\n");
 	}
 
+	if (device_property_present(adp5585->dev, "adi,keypad-pins")) {
+		ret = devm_mfd_add_devices(adp5585->dev, PLATFORM_DEVID_AUTO,
+					   &cells[ADP5585_DEV_INPUT], 1, NULL, 0, NULL);
+		if (ret)
+			return dev_err_probe(dev, ret, "Failed to add input device\n");
+	}
+
 	return 0;
 }
 
@@ -518,6 +536,10 @@ static int adp5585_setup(struct adp5585_dev *adp5585)
 	unsigned int reg_val = 0, i;
 	int ret;
 
+	/* If pin_6 (ROW5/GPI6) is not available, make sure to mark it as "busy" */
+	if (!adp5585->has_pin6)
+		__set_bit(ADP5585_ROW5, adp5585->pin_usage);
+
 	/* Configure the device with reset and unlock events */
 	for (i = 0; i < adp5585->nkeys_unlock; i++) {
 		ret = regmap_write(adp5585->regmap, ADP5589_UNLOCK1 + i,
@@ -542,6 +564,9 @@ static int adp5585_setup(struct adp5585_dev *adp5585)
 				   adp5585->reset1_keys[i] | ADP5585_RESET_EV_PRESS);
 		if (ret)
 			return ret;
+
+		/* Mark that pin as not usable for the INPUT and GPIO devices. */
+		__set_bit(ADP5585_RESET1_OUT, adp5585->pin_usage);
 	}
 
 	for (i = 0; i < adp5585->nkeys_reset2; i++) {
@@ -549,6 +574,8 @@ static int adp5585_setup(struct adp5585_dev *adp5585)
 				   adp5585->reset2_keys[i] | ADP5585_RESET_EV_PRESS);
 		if (ret)
 			return ret;
+
+		__set_bit(adp5585->reset2_out, adp5585->pin_usage);
 	}
 
 	if (adp5585->nkeys_reset1 || adp5585->nkeys_reset2) {
@@ -697,6 +724,10 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 		return dev_err_probe(&i2c->dev, -ENODEV,
 				     "Invalid device ID 0x%02x\n", id);
 
+	adp5585->pin_usage = devm_bitmap_zalloc(&i2c->dev, adp5585->n_pins, GFP_KERNEL);
+	if (!adp5585->pin_usage)
+		return -ENOMEM;
+
 	ret = adp5585_parse_fw(adp5585);
 	if (ret)
 		return ret;
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index db483ef9693a41d29a36910952e7a0bc54f86631..41c5d2e1cc7ca40aa5192296ecc5ff8d737cb3e6 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -126,6 +126,10 @@
 #define ADP5585_GPI_EVENT_END		47
 #define ADP5585_ROW5_KEY_EVENT_START	1
 #define ADP5585_ROW5_KEY_EVENT_END	30
+#define ADP5585_PWM_OUT			3
+#define ADP5585_RESET1_OUT		4
+#define ADP5585_RESET2_OUT		9
+#define ADP5585_ROW5			5
 
 /* ADP5589 */
 #define		ADP5589_MAN_ID_VALUE		0x10
@@ -154,6 +158,7 @@
 #define ADP5589_PWM_ONT_LOW		0x40
 #define ADP5589_PWM_CFG			0x42
 #define ADP5589_POLL_PTIME_CFG		0x48
+#define ADP5589_PIN_CONFIG_A		0x49
 #define ADP5589_PIN_CONFIG_D		0x4C
 #define ADP5589_GENERAL_CFG		0x4d
 #define ADP5589_INT_EN			0x4e
@@ -165,6 +170,7 @@
 #define ADP5589_GPI_EVENT_START		97
 #define ADP5589_GPI_EVENT_END		115
 #define ADP5589_UNLOCK_WILDCARD		127
+#define ADP5589_RESET2_OUT		12
 
 struct regmap;
 
@@ -188,6 +194,7 @@ struct adp5585_regs {
 	unsigned int reset_cfg;
 	unsigned int reset1_event_a;
 	unsigned int reset2_event_a;
+	unsigned int pin_cfg_a;
 };
 
 struct adp5585_dev {
@@ -195,6 +202,9 @@ struct adp5585_dev {
 	struct regmap *regmap;
 	const struct adp5585_regs *regs;
 	struct blocking_notifier_head event_notifier;
+	unsigned long *pin_usage;
+	unsigned int n_pins;
+	unsigned int reset2_out;
 	enum adp5585_variant variant;
 	unsigned int id;
 	bool has_unlock;

-- 
2.50.0

[PATCH v6 15/20] gpio: adp5585: support gpi events

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Add support for adding GPIs to the event FIFO. This is done by adding
irq_chip support. Like this, one can use the input gpio_keys driver as a
"frontend" device and input handler.

As part of this change, we now implement .request() and .free() as we can't
blindly consume all available pins as GPIOs (example: some pins can be
used for forming a keymap matrix).

Also note that the number of pins can now be obtained from the parent,
top level device. Hence the 'max_gpio' variable can be removed.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/gpio/Kconfig        |   1 +
 drivers/gpio/gpio-adp5585.c | 221 +++++++++++++++++++++++++++++++++++++++++++-
 include/linux/mfd/adp5585.h |   2 +
 3 files changed, 220 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 9ae806f45e19c1494d156b7f04b1882be68d3e3f..0b85d07ccb0b8a41f33fd3d930eb74f70787355d 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1259,6 +1259,7 @@ config GPIO_ADP5520
 config GPIO_ADP5585
 	tristate "GPIO Support for ADP5585"
 	depends on MFD_ADP5585
+	select GPIOLIB_IRQCHIP
 	help
 	  This option enables support for the GPIO function found in the Analog
 	  Devices ADP5585.
diff --git a/drivers/gpio/gpio-adp5585.c b/drivers/gpio/gpio-adp5585.c
index cdf107742579cb44d73cc030646358ba5a23fd97..b2c8836c5f8477ebeea516b4eedc7d3d2aad59dd 100644
--- a/drivers/gpio/gpio-adp5585.c
+++ b/drivers/gpio/gpio-adp5585.c
@@ -7,10 +7,15 @@
  * Copyright 2025 Analog Devices, Inc.
  */
 
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/container_of.h>
 #include <linux/device.h>
 #include <linux/gpio/driver.h>
 #include <linux/mfd/adp5585.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/notifier.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/types.h>
@@ -36,20 +41,29 @@
 struct adp5585_gpio_chip {
 	int (*bank)(unsigned int off);
 	int (*bit)(unsigned int off);
-	unsigned int max_gpio;
 	unsigned int debounce_dis_a;
 	unsigned int rpull_cfg_a;
 	unsigned int gpo_data_a;
 	unsigned int gpo_out_a;
 	unsigned int gpio_dir_a;
 	unsigned int gpi_stat_a;
+	unsigned int gpi_int_lvl_a;
+	unsigned int gpi_ev_a;
+	unsigned int gpi_ev_min;
+	unsigned int gpi_ev_max;
 	bool has_bias_hole;
 };
 
 struct adp5585_gpio_dev {
 	struct gpio_chip gpio_chip;
+	struct notifier_block nb;
 	const struct adp5585_gpio_chip *info;
 	struct regmap *regmap;
+	unsigned long irq_mask;
+	unsigned long irq_en;
+	unsigned long irq_active_high;
+	/* used for irqchip bus locking */
+	struct mutex bus_lock;
 };
 
 static int adp5585_gpio_bank(unsigned int off)
@@ -224,12 +238,175 @@ static int adp5585_gpio_set_config(struct gpio_chip *chip, unsigned int off,
 	};
 }
 
+static int adp5585_gpio_request(struct gpio_chip *chip, unsigned int off)
+{
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	struct device *dev = chip->parent;
+	struct adp5585_dev *adp5585 = dev_get_drvdata(dev->parent);
+	const struct adp5585_regs *regs = adp5585->regs;
+	int ret;
+
+	ret = test_and_set_bit(off, adp5585->pin_usage);
+	if (ret)
+		return -EBUSY;
+
+	/* make sure it's configured for GPIO */
+	return regmap_clear_bits(adp5585_gpio->regmap,
+				 regs->pin_cfg_a + info->bank(off),
+				 info->bit(off));
+}
+
+static void adp5585_gpio_free(struct gpio_chip *chip, unsigned int off)
+{
+	struct device *dev = chip->parent;
+	struct adp5585_dev *adp5585 = dev_get_drvdata(dev->parent);
+
+	clear_bit(off, adp5585->pin_usage);
+}
+
+static int adp5585_gpio_key_event(struct notifier_block *nb, unsigned long key,
+				  void *data)
+{
+	struct adp5585_gpio_dev *adp5585_gpio = container_of(nb, struct adp5585_gpio_dev, nb);
+	struct device *dev = adp5585_gpio->gpio_chip.parent;
+	unsigned long key_press = (unsigned long)data;
+	unsigned int irq, irq_type;
+	struct irq_data *irqd;
+	bool active_high;
+	unsigned int off;
+
+	/* make sure the event is for me */
+	if (key < adp5585_gpio->info->gpi_ev_min || key > adp5585_gpio->info->gpi_ev_max)
+		return NOTIFY_DONE;
+
+	off = key - adp5585_gpio->info->gpi_ev_min;
+	active_high = test_bit(off, &adp5585_gpio->irq_active_high);
+
+	irq = irq_find_mapping(adp5585_gpio->gpio_chip.irq.domain, off);
+	if (!irq)
+		return NOTIFY_BAD;
+
+	irqd = irq_get_irq_data(irq);
+	if (!irqd) {
+		dev_err(dev, "Could not get irq(%u) data\n", irq);
+		return NOTIFY_BAD;
+	}
+
+	dev_dbg_ratelimited(dev, "gpio-keys event(%u) press=%lu, a_high=%u\n",
+			    off, key_press, active_high);
+
+	if (!active_high)
+		key_press = !key_press;
+
+	irq_type = irqd_get_trigger_type(irqd);
+
+	if ((irq_type & IRQ_TYPE_EDGE_RISING && key_press) ||
+	    (irq_type & IRQ_TYPE_EDGE_FALLING && !key_press))
+		handle_nested_irq(irq);
+
+	return NOTIFY_STOP;
+}
+
+static void adp5585_irq_bus_lock(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(gc);
+
+	mutex_lock(&adp5585_gpio->bus_lock);
+}
+
+static void adp5585_irq_bus_sync_unlock(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(chip);
+	const struct adp5585_gpio_chip *info = adp5585_gpio->info;
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+	bool active_high = test_bit(hwirq, &adp5585_gpio->irq_active_high);
+	bool enabled = test_bit(hwirq, &adp5585_gpio->irq_en);
+	bool masked = test_bit(hwirq, &adp5585_gpio->irq_mask);
+	unsigned int bank = adp5585_gpio->info->bank(hwirq);
+	unsigned int bit = adp5585_gpio->info->bit(hwirq);
+
+	if (masked && !enabled)
+		goto out_unlock;
+	if (!masked && enabled)
+		goto out_unlock;
+
+	regmap_update_bits(adp5585_gpio->regmap, info->gpi_int_lvl_a + bank, bit,
+			   active_high ? bit : 0);
+	regmap_update_bits(adp5585_gpio->regmap, info->gpi_ev_a + bank, bit,
+			   masked ? 0 : bit);
+	assign_bit(hwirq, &adp5585_gpio->irq_en, !masked);
+
+out_unlock:
+	mutex_unlock(&adp5585_gpio->bus_lock);
+}
+
+static void adp5585_irq_mask(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(gc);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	__set_bit(hwirq, &adp5585_gpio->irq_mask);
+	gpiochip_disable_irq(gc, hwirq);
+}
+
+static void adp5585_irq_unmask(struct irq_data *d)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(gc);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	gpiochip_enable_irq(gc, hwirq);
+	__clear_bit(hwirq, &adp5585_gpio->irq_mask);
+}
+
+static int adp5585_irq_set_type(struct irq_data *d, unsigned int type)
+{
+	struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+	struct adp5585_gpio_dev *adp5585_gpio = gpiochip_get_data(gc);
+	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+
+	if (!(type & IRQ_TYPE_EDGE_BOTH))
+		return -EINVAL;
+
+	assign_bit(hwirq, &adp5585_gpio->irq_active_high,
+		   type == IRQ_TYPE_EDGE_RISING);
+
+	irq_set_handler_locked(d, handle_edge_irq);
+	return 0;
+}
+
+static const struct irq_chip adp5585_irq_chip = {
+	.name = "adp5585",
+	.irq_mask = adp5585_irq_mask,
+	.irq_unmask = adp5585_irq_unmask,
+	.irq_bus_lock = adp5585_irq_bus_lock,
+	.irq_bus_sync_unlock = adp5585_irq_bus_sync_unlock,
+	.irq_set_type = adp5585_irq_set_type,
+	.flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_IMMUTABLE,
+	GPIOCHIP_IRQ_RESOURCE_HELPERS,
+};
+
+static void adp5585_gpio_unreg_notifier(void *data)
+{
+	struct adp5585_gpio_dev *adp5585_gpio = data;
+	struct device *dev = adp5585_gpio->gpio_chip.parent;
+	struct adp5585_dev *adp5585 = dev_get_drvdata(dev->parent);
+
+	blocking_notifier_chain_unregister(&adp5585->event_notifier,
+					   &adp5585_gpio->nb);
+}
+
 static int adp5585_gpio_probe(struct platform_device *pdev)
 {
 	struct adp5585_dev *adp5585 = dev_get_drvdata(pdev->dev.parent);
 	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct adp5585_gpio_dev *adp5585_gpio;
 	struct device *dev = &pdev->dev;
+	struct gpio_irq_chip *girq;
 	struct gpio_chip *gc;
 	int ret;
 
@@ -253,13 +430,43 @@ static int adp5585_gpio_probe(struct platform_device *pdev)
 	gc->get = adp5585_gpio_get_value;
 	gc->set_rv = adp5585_gpio_set_value;
 	gc->set_config = adp5585_gpio_set_config;
+	gc->request = adp5585_gpio_request;
+	gc->free = adp5585_gpio_free;
 	gc->can_sleep = true;
 
 	gc->base = -1;
-	gc->ngpio = adp5585_gpio->info->max_gpio;
+	gc->ngpio = adp5585->n_pins;
 	gc->label = pdev->name;
 	gc->owner = THIS_MODULE;
 
+	if (device_property_present(dev->parent, "interrupt-controller")) {
+		if (!adp5585->irq)
+			return dev_err_probe(dev, -EINVAL,
+					     "Unable to serve as interrupt controller without IRQ\n");
+
+		girq = &adp5585_gpio->gpio_chip.irq;
+		gpio_irq_chip_set_chip(girq, &adp5585_irq_chip);
+		girq->handler = handle_bad_irq;
+		girq->threaded = true;
+
+		adp5585_gpio->nb.notifier_call = adp5585_gpio_key_event;
+		ret = blocking_notifier_chain_register(&adp5585->event_notifier,
+						       &adp5585_gpio->nb);
+		if (ret)
+			return ret;
+
+		ret = devm_add_action_or_reset(dev, adp5585_gpio_unreg_notifier,
+					       adp5585_gpio);
+		if (ret)
+			return ret;
+	}
+
+	/* everything masked by default */
+	adp5585_gpio->irq_mask = ~0UL;
+
+	ret = devm_mutex_init(dev, &adp5585_gpio->bus_lock);
+	if (ret)
+		return ret;
 	ret = devm_gpiochip_add_data(dev, &adp5585_gpio->gpio_chip,
 				     adp5585_gpio);
 	if (ret)
@@ -277,8 +484,11 @@ static const struct adp5585_gpio_chip adp5585_gpio_chip_info = {
 	.gpo_out_a = ADP5585_GPO_OUT_MODE_A,
 	.gpio_dir_a = ADP5585_GPIO_DIRECTION_A,
 	.gpi_stat_a = ADP5585_GPI_STATUS_A,
-	.max_gpio = ADP5585_PIN_MAX,
 	.has_bias_hole = true,
+	.gpi_ev_min = ADP5585_GPI_EVENT_START,
+	.gpi_ev_max = ADP5585_GPI_EVENT_END,
+	.gpi_int_lvl_a = ADP5585_GPI_INT_LEVEL_A,
+	.gpi_ev_a = ADP5585_GPI_EVENT_EN_A,
 };
 
 static const struct adp5585_gpio_chip adp5589_gpio_chip_info = {
@@ -290,7 +500,10 @@ static const struct adp5585_gpio_chip adp5589_gpio_chip_info = {
 	.gpo_out_a = ADP5589_GPO_OUT_MODE_A,
 	.gpio_dir_a = ADP5589_GPIO_DIRECTION_A,
 	.gpi_stat_a = ADP5589_GPI_STATUS_A,
-	.max_gpio = ADP5589_PIN_MAX,
+	.gpi_ev_min = ADP5589_GPI_EVENT_START,
+	.gpi_ev_max = ADP5589_GPI_EVENT_END,
+	.gpi_int_lvl_a = ADP5589_GPI_INT_LEVEL_A,
+	.gpi_ev_a = ADP5589_GPI_EVENT_EN_A,
 };
 
 static const struct platform_device_id adp5585_gpio_id_table[] = {
diff --git a/include/linux/mfd/adp5585.h b/include/linux/mfd/adp5585.h
index 41c5d2e1cc7ca40aa5192296ecc5ff8d737cb3e6..5237da6b4a9f2f3424e5f0c4814c5d08aebf080e 100644
--- a/include/linux/mfd/adp5585.h
+++ b/include/linux/mfd/adp5585.h
@@ -136,6 +136,8 @@
 #define ADP5589_GPI_STATUS_A		0x16
 #define ADP5589_GPI_STATUS_C		0x18
 #define ADP5589_RPULL_CONFIG_A		0x19
+#define ADP5589_GPI_INT_LEVEL_A		0x1e
+#define ADP5589_GPI_EVENT_EN_A		0x21
 #define ADP5589_DEBOUNCE_DIS_A		0x27
 #define ADP5589_GPO_DATA_OUT_A		0x2a
 #define ADP5589_GPO_OUT_MODE_A		0x2d

-- 
2.50.0

[PATCH v6 16/20] Input: adp5585: Add Analog Devices ADP5585/89 support

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The ADP5585 is a 10/11 input/output port expander with a built in keypad
matrix decoder, programmable logic, reset generator, and PWM generator.
This driver supports the keyboard function using the platform device
registered by the core MFD driver.

The ADP5589 has 19 pins and also features an unlock function.

Changes in v6:
 - Improve kconfig text.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 MAINTAINERS                           |   1 +
 drivers/input/keyboard/Kconfig        |  11 +
 drivers/input/keyboard/Makefile       |   1 +
 drivers/input/keyboard/adp5585-keys.c | 371 ++++++++++++++++++++++++++++++++++
 4 files changed, 384 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 0737dcb2e41119426f1d8fbaec829cc90ed0bf64..18838ba19e5edbbe352a470c4e177c6d24136d83 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -550,6 +550,7 @@ L:	linux-pwm@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/*/adi,adp5585*.yaml
 F:	drivers/gpio/gpio-adp5585.c
+F:	drivers/input/keyboard/adp5585-keys.c
 F:	drivers/mfd/adp5585.c
 F:	drivers/pwm/pwm-adp5585.c
 F:	include/linux/mfd/adp5585.h
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 721ab69e84ac6586f4f19102890a15ca3fcf1910..e1f8cf2ac305d892270af4936a042bffa0501f66 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -37,6 +37,17 @@ config KEYBOARD_ADP5520
 	  To compile this driver as a module, choose M here: the module will
 	  be called adp5520-keys.
 
+config KEYBOARD_ADP5585
+	tristate "ADP558x keypad support"
+	depends on MFD_ADP5585
+	select INPUT_MATRIXKMAP
+	help
+	  This option enables support for the KEYPAD function found in the Analog
+	  Devices ADP5585 and similar devices.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called adp5585-keys.
+
 config KEYBOARD_ADP5588
 	tristate "ADP5588/87 I2C QWERTY Keypad and IO Expander"
 	depends on I2C
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 1e0721c3070968a6339a42f65a95af48364f6897..f00ec003a59aa28577ae164c0539cc5aff9579fc 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -7,6 +7,7 @@
 
 obj-$(CONFIG_KEYBOARD_ADC)		+= adc-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5520)		+= adp5520-keys.o
+obj-$(CONFIG_KEYBOARD_ADP5585)		+= adp5585-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5588)		+= adp5588-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5589)		+= adp5589-keys.o
 obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
diff --git a/drivers/input/keyboard/adp5585-keys.c b/drivers/input/keyboard/adp5585-keys.c
new file mode 100644
index 0000000000000000000000000000000000000000..4208229e13561db1919e2f671064171ab851e9c0
--- /dev/null
+++ b/drivers/input/keyboard/adp5585-keys.c
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Analog Devices ADP5585 Keys driver
+ *
+ * Copyright (C) 2025 Analog Devices, Inc.
+ */
+
+#include <linux/bitmap.h>
+#include <linux/container_of.h>
+#include <linux/device.h>
+#include <linux/find.h>
+#include <linux/input.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/mfd/adp5585.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/notifier.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/types.h>
+
+/* As needed for the matrix parsing code */
+#define ADP5589_MAX_KEYMAPSIZE		123
+
+struct adp5585_kpad_chip {
+	u8 key_ev_min;
+	u8 key_ev_max;
+	u8 max_rows;
+	u8 max_cols;
+};
+
+struct adp5585_kpad {
+	const struct adp5585_kpad_chip *info;
+	struct notifier_block nb;
+	struct input_dev *input;
+	unsigned short keycode[ADP5589_MAX_KEYMAPSIZE];
+	struct device *dev;
+	unsigned long keypad;
+	int row_shift;
+};
+
+static int adp5585_keys_validate_events(const struct adp5585_kpad *kpad,
+					const u32 *events, u32 n_events)
+{
+	unsigned int ev;
+	u32 row, col;
+
+	for (ev = 0; ev < n_events; ev++) {
+		if (events[ev] < kpad->info->key_ev_min ||
+		    events[ev] > kpad->info->key_ev_max)
+			continue;
+
+		/*
+		 * if the event is to be generated by the keymap, we need to make
+		 * sure that the pins are part of it!
+		 */
+		row = (events[ev] - 1) / kpad->info->max_cols;
+		col = (events[ev] - 1) % kpad->info->max_cols;
+
+		if (test_bit(row, &kpad->keypad) &&
+		    test_bit(col + kpad->info->max_rows, &kpad->keypad))
+			continue;
+
+		return dev_err_probe(kpad->dev, -EINVAL,
+				     "Invalid unlock/reset event(%u) not used in the keypad\n",
+				     events[ev]);
+	}
+
+	return 0;
+}
+
+static int adp5585_keys_check_special_events(const struct adp5585_dev *adp5585,
+					     const struct adp5585_kpad *kpad)
+{
+	int error;
+
+	error = adp5585_keys_validate_events(kpad, adp5585->unlock_keys,
+					     adp5585->nkeys_unlock);
+	if (error)
+		return error;
+
+	error = adp5585_keys_validate_events(kpad, adp5585->reset1_keys,
+					     adp5585->nkeys_reset1);
+	if (error)
+		return error;
+
+	return adp5585_keys_validate_events(kpad, adp5585->reset2_keys,
+					    adp5585->nkeys_reset2);
+}
+
+static void adp5585_keys_pins_free(void *data)
+{
+	struct adp5585_kpad *kpad = data;
+	struct adp5585_dev *adp5585 = dev_get_drvdata(kpad->dev->parent);
+	unsigned int pin;
+
+	for_each_set_bit(pin, &kpad->keypad, adp5585->n_pins)
+		clear_bit(pin, adp5585->pin_usage);
+}
+
+static int adp5585_keys_parse_fw(const struct adp5585_dev *adp5585,
+				 struct adp5585_kpad *kpad)
+{
+	struct device *dev = kpad->dev;
+	u32 cols = 0, rows = 0, pin;
+	int error, n_pins;
+
+	/*
+	 * We do not check for errors (or no value) since the input device is
+	 * only added if this property is present in the first place.
+	 */
+	n_pins = device_property_count_u32(dev, "adi,keypad-pins");
+	if (n_pins > adp5585->n_pins)
+		return dev_err_probe(dev, -EINVAL,
+				     "Too many keypad pins (%d) defined (max=%d)\n",
+				     n_pins, adp5585->n_pins);
+
+	unsigned int *keypad_pins __free(kfree) = kcalloc(n_pins, sizeof(*keypad_pins),
+							  GFP_KERNEL);
+	if (!keypad_pins)
+		return -ENOMEM;
+
+	error = device_property_read_u32_array(dev, "adi,keypad-pins",
+					       keypad_pins, n_pins);
+	if (error)
+		return error;
+
+	/*
+	 * We can add the action here since it makes the code easier and nothing
+	 * "bad" will happen out of it. Worst case, it will be a no-op and no
+	 * bit will set.
+	 */
+	error = devm_add_action_or_reset(dev, adp5585_keys_pins_free, kpad);
+	if (error)
+		return error;
+
+	for (pin = 0; pin < n_pins; pin++) {
+		if (keypad_pins[pin] >= adp5585->n_pins)
+			return dev_err_probe(dev, -EINVAL,
+					     "Invalid keypad pin(%u) defined\n",
+					     keypad_pins[pin]);
+
+		if (test_and_set_bit(keypad_pins[pin], adp5585->pin_usage))
+			return dev_err_probe(dev, -EBUSY,
+					     "Keypad pin(%u) already used\n",
+					     keypad_pins[pin]);
+
+		__set_bit(keypad_pins[pin], &kpad->keypad);
+	}
+
+	/*
+	 * Note that given that we get a mask (and the HW allows it), we
+	 * can have holes in our keypad (eg: row0, row1 and row7 enabled).
+	 * However, for the matrix parsing functions we need to pass the
+	 * number of rows/cols as the maximum row/col used plus 1. This
+	 * pretty much means we will also have holes in our SW keypad.
+	 */
+
+	rows = find_last_bit(&kpad->keypad, kpad->info->max_rows) + 1;
+	if (rows == kpad->info->max_rows + 1)
+		return dev_err_probe(dev, -EINVAL,
+				     "Now rows defined in the keypad!\n");
+
+	cols = find_last_bit(&kpad->keypad, kpad->info->max_cols + kpad->info->max_rows);
+	if (cols < kpad->info->max_rows)
+		return dev_err_probe(dev, -EINVAL,
+				     "No columns defined in the keypad!\n");
+
+	cols = cols + 1 - kpad->info->max_rows;
+
+	error = matrix_keypad_build_keymap(NULL, NULL, rows, cols,
+					   kpad->keycode, kpad->input);
+	if (error)
+		return error;
+
+	kpad->row_shift = get_count_order(cols);
+
+	if (device_property_read_bool(kpad->dev, "autorepeat"))
+		__set_bit(EV_REP, kpad->input->evbit);
+
+	error = adp5585_keys_check_special_events(adp5585, kpad);
+	if (error)
+		return error;
+
+	return 0;
+}
+
+static int adp5585_keys_setup(const struct adp5585_dev *adp5585,
+			      struct adp5585_kpad *kpad)
+{
+	unsigned long keys_bits, start = 0, nbits = kpad->info->max_rows;
+	const struct adp5585_regs *regs = adp5585->regs;
+	unsigned int i = 0, max_cols = kpad->info->max_cols;
+	int error;
+
+	/*
+	 * Take care as the below assumes max_rows is always less or equal than
+	 * 8 which is true for the supported devices. If we happen to add
+	 * another device we need to make sure this still holds true. Although
+	 * adding a new device is very unlikely.
+	 */
+	do {
+		keys_bits = bitmap_read(&kpad->keypad, start, nbits);
+		if (keys_bits) {
+			error = regmap_write(adp5585->regmap, regs->pin_cfg_a + i,
+					     keys_bits);
+			if (error)
+				return error;
+		}
+
+		start += nbits;
+		if (max_cols > 8) {
+			nbits = 8;
+			max_cols -= nbits;
+		} else {
+			nbits = max_cols;
+		}
+
+		i++;
+	} while (start < kpad->info->max_rows + kpad->info->max_cols);
+
+	return 0;
+}
+
+static int adp5585_keys_ev_handle(struct notifier_block *nb, unsigned long key,
+				  void *data)
+{
+	struct adp5585_kpad *kpad = container_of(nb, struct adp5585_kpad, nb);
+	unsigned long key_press = (unsigned long)data;
+	unsigned int row, col, code;
+
+	/* make sure the event is for us */
+	if (key < kpad->info->key_ev_min || key > kpad->info->key_ev_max)
+		return NOTIFY_DONE;
+
+	/*
+	 * Unlikely but lets be on the safe side! We do not return any error
+	 * because the event was indeed for us but with some weird value. So,
+	 * we still want the caller know that the right handler was called.
+	 */
+	if (!key)
+		return NOTIFY_BAD;
+
+	row = (key - 1) / (kpad->info->max_cols);
+	col = (key - 1) % (kpad->info->max_cols);
+	code = MATRIX_SCAN_CODE(row, col, kpad->row_shift);
+
+	dev_dbg_ratelimited(kpad->dev, "report key(%lu) r(%d) c(%d) code(%d)\n",
+			    key, row, col, kpad->keycode[code]);
+
+	input_report_key(kpad->input, kpad->keycode[code], key_press);
+	input_sync(kpad->input);
+
+	return NOTIFY_STOP;
+}
+
+static void adp5585_keys_unreg_notifier(void *data)
+{
+	struct adp5585_kpad *kpad = data;
+	struct adp5585_dev *adp5585 = dev_get_drvdata(kpad->dev->parent);
+
+	blocking_notifier_chain_unregister(&adp5585->event_notifier,
+					   &kpad->nb);
+}
+
+static int adp5585_keys_probe(struct platform_device *pdev)
+{
+	const struct platform_device_id *id = platform_get_device_id(pdev);
+	struct adp5585_dev *adp5585 = dev_get_drvdata(pdev->dev.parent);
+	struct device *dev = &pdev->dev;
+	struct adp5585_kpad *kpad;
+	unsigned int revid;
+	const char *phys;
+	int error;
+
+	kpad = devm_kzalloc(dev, sizeof(*kpad), GFP_KERNEL);
+	if (!kpad)
+		return -ENOMEM;
+
+	if (!adp5585->irq)
+		return dev_err_probe(dev, -EINVAL,
+				     "IRQ is mandatory for the keypad\n");
+
+	kpad->dev = dev;
+
+	kpad->input = devm_input_allocate_device(dev);
+	if (!kpad->input)
+		return -ENOMEM;
+
+	kpad->info = (const struct adp5585_kpad_chip *)id->driver_data;
+	if (!kpad->info)
+		return -ENODEV;
+
+	error = regmap_read(adp5585->regmap, ADP5585_ID, &revid);
+	if (error)
+		return dev_err_probe(dev, error, "Failed to read device ID\n");
+
+	phys = devm_kasprintf(dev, GFP_KERNEL, "%s/input0", pdev->name);
+	if (!phys)
+		return -ENOMEM;
+
+	kpad->input->name = pdev->name;
+	kpad->input->phys = phys;
+
+	kpad->input->id.bustype = BUS_I2C;
+	kpad->input->id.vendor = 0x0001;
+	kpad->input->id.product = 0x0001;
+	kpad->input->id.version = revid & ADP5585_REV_ID_MASK;
+
+	device_set_of_node_from_dev(dev, dev->parent);
+
+	error = adp5585_keys_parse_fw(adp5585, kpad);
+	if (error)
+		return error;
+
+	error = adp5585_keys_setup(adp5585, kpad);
+	if (error)
+		return error;
+
+	kpad->nb.notifier_call = adp5585_keys_ev_handle;
+	error = blocking_notifier_chain_register(&adp5585->event_notifier,
+						 &kpad->nb);
+	if (error)
+		return error;
+
+	error = devm_add_action_or_reset(dev, adp5585_keys_unreg_notifier, kpad);
+	if (error)
+		return error;
+
+	error = input_register_device(kpad->input);
+	if (error)
+		return dev_err_probe(dev, error,
+				     "Failed to register input device\n");
+
+	return 0;
+}
+
+static const struct adp5585_kpad_chip adp5585_kpad_chip_info = {
+	.max_rows = 6,
+	.max_cols = 5,
+	.key_ev_min = ADP5585_ROW5_KEY_EVENT_START,
+	.key_ev_max = ADP5585_ROW5_KEY_EVENT_END,
+};
+
+static const struct adp5585_kpad_chip adp5589_kpad_chip_info = {
+	.max_rows = 8,
+	.max_cols = 11,
+	.key_ev_min = ADP5589_KEY_EVENT_START,
+	.key_ev_max = ADP5589_KEY_EVENT_END,
+};
+
+static const struct platform_device_id adp5585_keys_id_table[] = {
+	{ "adp5585-keys", (kernel_ulong_t)&adp5585_kpad_chip_info },
+	{ "adp5589-keys", (kernel_ulong_t)&adp5589_kpad_chip_info },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, adp5585_keys_id_table);
+
+static struct platform_driver adp5585_keys_driver = {
+	.driver	= {
+		.name = "adp5585-keys",
+	},
+	.probe = adp5585_keys_probe,
+	.id_table = adp5585_keys_id_table,
+};
+module_platform_driver(adp5585_keys_driver);
+
+MODULE_AUTHOR("Nuno Sá <nuno.sa@analog.com>");
+MODULE_DESCRIPTION("ADP5585 Keys Driver");
+MODULE_LICENSE("GPL");

-- 
2.50.0

Re: [PATCH v6 16/20] Input: adp5585: Add Analog Devices ADP5585/89 support

[Uwe Kleine-König]

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On Mon, Jun 30, 2025 at 12:53:07PM +0100, Nuno Sá via B4 Relay wrote:
> From: Nuno Sá <nuno.sa@analog.com>
> 
> The ADP5585 is a 10/11 input/output port expander with a built in keypad
> matrix decoder, programmable logic, reset generator, and PWM generator.
> This driver supports the keyboard function using the platform device
> registered by the core MFD driver.
> 
> The ADP5589 has 19 pins and also features an unlock function.
> 
> Changes in v6:
>  - Improve kconfig text.

Is it intended to have the changelog for the series in the commit log in
the end?

> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Signed-off-by: Nuno Sá <nuno.sa@analog.com>
> ---

I would expect that not, so it should go here.

Best regards
Uwe

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Re: [PATCH v6 16/20] Input: adp5585: Add Analog Devices ADP5585/89 support

[Nuno Sá]

On Tue, 2025-07-01 at 10:39 +0200, Uwe Kleine-König wrote:
> On Mon, Jun 30, 2025 at 12:53:07PM +0100, Nuno Sá via B4 Relay wrote:
> > From: Nuno Sá <nuno.sa@analog.com>
> > 
> > The ADP5585 is a 10/11 input/output port expander with a built in keypad
> > matrix decoder, programmable logic, reset generator, and PWM generator.
> > This driver supports the keyboard function using the platform device
> > registered by the core MFD driver.
> > 
> > The ADP5589 has 19 pins and also features an unlock function.
> > 
> > Changes in v6:
> >  - Improve kconfig text.
> 
> Is it intended to have the changelog for the series in the commit log in
> the end?
> 

This is like DRM style.

> > Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> > Signed-off-by: Nuno Sá <nuno.sa@analog.com>
> > ---
> 
> I would expect that not, so it should go here.
> 

I did asked Lee before sending v6 but He likely missed it. I would add it here
but it is painful to do it with b4 so I ended up adding the log directly in the
commit message. b4 was removing git notes and I also don't like git notes adding
that "Notes:" line in the beginning. Do you have any suggestion on how you
handle this with b4 other than b4 send -o $DIR && git-send-mail?

- Nuno Sá

Re: [PATCH v6 16/20] Input: adp5585: Add Analog Devices ADP5585/89 support

[Uwe Kleine-König]

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Hey Nuno,

On Tue, Jul 01, 2025 at 10:19:03AM +0100, Nuno Sá wrote:
> I did asked Lee before sending v6 but He likely missed it. I would add it here
> but it is painful to do it with b4 so I ended up adding the log directly in the
> commit message. b4 was removing git notes and I also don't like git notes adding
> that "Notes:" line in the beginning. Do you have any suggestion on how you
> handle this with b4 other than b4 send -o $DIR && git-send-mail?

I'm not using b4 for sending, but ISTR that adding the --- to the commit
log after the S-o-b area does the right thing. You get the tripple dash
twice then, but git-apply does the right thing with it.

Best regards
Uwe

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Re: [PATCH v6 16/20] Input: adp5585: Add Analog Devices ADP5585/89 support

[Nuno Sá]

On Tue, 2025-07-01 at 15:43 +0200, Uwe Kleine-König wrote:
> Hey Nuno,
> 
> On Tue, Jul 01, 2025 at 10:19:03AM +0100, Nuno Sá wrote:
> > I did asked Lee before sending v6 but He likely missed it. I would add it
> > here
> > but it is painful to do it with b4 so I ended up adding the log directly in
> > the
> > commit message. b4 was removing git notes and I also don't like git notes
> > adding
> > that "Notes:" line in the beginning. Do you have any suggestion on how you
> > handle this with b4 other than b4 send -o $DIR && git-send-mail?
> 
> I'm not using b4 for sending, but ISTR that adding the --- to the commit
> log after the S-o-b area does the right thing. You get the tripple dash
> twice then, but git-apply does the right thing with it.
> 

Yeps, I just realized that :).

- Nuno Sá

[PATCH v6 17/20] Input: adp5589: remove the driver

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

The adp5589 support is based on legacy platform data and there's no
upstream pataform using this device.
Moreover, recently, with

commit
480a8ad683d7 ("mfd: adp5585: Add Analog Devices ADP5585 core support")

we overlapped support for the adp5585 device (gpiochip part of it) but
since it actually makes sense for the device to be supported under MFD, we
can complement it and add the keymap support for it (properly based on FW
properties). And that is what

commit
04840c5363a6 ("Input: adp5585: Add Analog Devices ADP5585/89 support")

is doing.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/input/keyboard/Kconfig        |   10 -
 drivers/input/keyboard/Makefile       |    1 -
 drivers/input/keyboard/adp5589-keys.c | 1066 ---------------------------------
 3 files changed, 1077 deletions(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index e1f8cf2ac305d892270af4936a042bffa0501f66..7c4f309a4cb63aaefb6ff466cc6a9d755d214584 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -61,16 +61,6 @@ config KEYBOARD_ADP5588
 	  To compile this driver as a module, choose M here: the
 	  module will be called adp5588-keys.
 
-config KEYBOARD_ADP5589
-	tristate "ADP5585/ADP5589 I2C QWERTY Keypad and IO Expander"
-	depends on I2C
-	help
-	  Say Y here if you want to use a ADP5585/ADP5589 attached to your
-	  system I2C bus.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called adp5589-keys.
-
 config KEYBOARD_AMIGA
 	tristate "Amiga keyboard"
 	depends on AMIGA
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index f00ec003a59aa28577ae164c0539cc5aff9579fc..8bc20ab2b103b0b75c446e4aa919dad01aa5f405 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_KEYBOARD_ADC)		+= adc-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5520)		+= adp5520-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5585)		+= adp5585-keys.o
 obj-$(CONFIG_KEYBOARD_ADP5588)		+= adp5588-keys.o
-obj-$(CONFIG_KEYBOARD_ADP5589)		+= adp5589-keys.o
 obj-$(CONFIG_KEYBOARD_AMIGA)		+= amikbd.o
 obj-$(CONFIG_KEYBOARD_APPLESPI)		+= applespi.o
 obj-$(CONFIG_KEYBOARD_ATARI)		+= atakbd.o
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
deleted file mode 100644
index 81d0876ee358ef4b521f3f936dc2ab108bb4cda3..0000000000000000000000000000000000000000
--- a/drivers/input/keyboard/adp5589-keys.c
+++ /dev/null
@@ -1,1066 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Description:  keypad driver for ADP5589, ADP5585
- *		 I2C QWERTY Keypad and IO Expander
- * Bugs: Enter bugs at http://blackfin.uclinux.org/
- *
- * Copyright (C) 2010-2011 Analog Devices Inc.
- */
-
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/workqueue.h>
-#include <linux/errno.h>
-#include <linux/pm.h>
-#include <linux/pm_wakeirq.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/i2c.h>
-#include <linux/gpio/driver.h>
-#include <linux/slab.h>
-
-#include <linux/input/adp5589.h>
-
-/* ADP5589/ADP5585 Common Registers */
-#define ADP5589_5_ID			0x00
-#define ADP5589_5_INT_STATUS		0x01
-#define ADP5589_5_STATUS		0x02
-#define ADP5589_5_FIFO_1		0x03
-#define ADP5589_5_FIFO_2		0x04
-#define ADP5589_5_FIFO_3		0x05
-#define ADP5589_5_FIFO_4		0x06
-#define ADP5589_5_FIFO_5		0x07
-#define ADP5589_5_FIFO_6		0x08
-#define ADP5589_5_FIFO_7		0x09
-#define ADP5589_5_FIFO_8		0x0A
-#define ADP5589_5_FIFO_9		0x0B
-#define ADP5589_5_FIFO_10		0x0C
-#define ADP5589_5_FIFO_11		0x0D
-#define ADP5589_5_FIFO_12		0x0E
-#define ADP5589_5_FIFO_13		0x0F
-#define ADP5589_5_FIFO_14		0x10
-#define ADP5589_5_FIFO_15		0x11
-#define ADP5589_5_FIFO_16		0x12
-#define ADP5589_5_GPI_INT_STAT_A	0x13
-#define ADP5589_5_GPI_INT_STAT_B	0x14
-
-/* ADP5589 Registers */
-#define ADP5589_GPI_INT_STAT_C		0x15
-#define ADP5589_GPI_STATUS_A		0x16
-#define ADP5589_GPI_STATUS_B		0x17
-#define ADP5589_GPI_STATUS_C		0x18
-#define ADP5589_RPULL_CONFIG_A		0x19
-#define ADP5589_RPULL_CONFIG_B		0x1A
-#define ADP5589_RPULL_CONFIG_C		0x1B
-#define ADP5589_RPULL_CONFIG_D		0x1C
-#define ADP5589_RPULL_CONFIG_E		0x1D
-#define ADP5589_GPI_INT_LEVEL_A		0x1E
-#define ADP5589_GPI_INT_LEVEL_B		0x1F
-#define ADP5589_GPI_INT_LEVEL_C		0x20
-#define ADP5589_GPI_EVENT_EN_A		0x21
-#define ADP5589_GPI_EVENT_EN_B		0x22
-#define ADP5589_GPI_EVENT_EN_C		0x23
-#define ADP5589_GPI_INTERRUPT_EN_A	0x24
-#define ADP5589_GPI_INTERRUPT_EN_B	0x25
-#define ADP5589_GPI_INTERRUPT_EN_C	0x26
-#define ADP5589_DEBOUNCE_DIS_A		0x27
-#define ADP5589_DEBOUNCE_DIS_B		0x28
-#define ADP5589_DEBOUNCE_DIS_C		0x29
-#define ADP5589_GPO_DATA_OUT_A		0x2A
-#define ADP5589_GPO_DATA_OUT_B		0x2B
-#define ADP5589_GPO_DATA_OUT_C		0x2C
-#define ADP5589_GPO_OUT_MODE_A		0x2D
-#define ADP5589_GPO_OUT_MODE_B		0x2E
-#define ADP5589_GPO_OUT_MODE_C		0x2F
-#define ADP5589_GPIO_DIRECTION_A	0x30
-#define ADP5589_GPIO_DIRECTION_B	0x31
-#define ADP5589_GPIO_DIRECTION_C	0x32
-#define ADP5589_UNLOCK1			0x33
-#define ADP5589_UNLOCK2			0x34
-#define ADP5589_EXT_LOCK_EVENT		0x35
-#define ADP5589_UNLOCK_TIMERS		0x36
-#define ADP5589_LOCK_CFG		0x37
-#define ADP5589_RESET1_EVENT_A		0x38
-#define ADP5589_RESET1_EVENT_B		0x39
-#define ADP5589_RESET1_EVENT_C		0x3A
-#define ADP5589_RESET2_EVENT_A		0x3B
-#define ADP5589_RESET2_EVENT_B		0x3C
-#define ADP5589_RESET_CFG		0x3D
-#define ADP5589_PWM_OFFT_LOW		0x3E
-#define ADP5589_PWM_OFFT_HIGH		0x3F
-#define ADP5589_PWM_ONT_LOW		0x40
-#define ADP5589_PWM_ONT_HIGH		0x41
-#define ADP5589_PWM_CFG			0x42
-#define ADP5589_CLOCK_DIV_CFG		0x43
-#define ADP5589_LOGIC_1_CFG		0x44
-#define ADP5589_LOGIC_2_CFG		0x45
-#define ADP5589_LOGIC_FF_CFG		0x46
-#define ADP5589_LOGIC_INT_EVENT_EN	0x47
-#define ADP5589_POLL_PTIME_CFG		0x48
-#define ADP5589_PIN_CONFIG_A		0x49
-#define ADP5589_PIN_CONFIG_B		0x4A
-#define ADP5589_PIN_CONFIG_C		0x4B
-#define ADP5589_PIN_CONFIG_D		0x4C
-#define ADP5589_GENERAL_CFG		0x4D
-#define ADP5589_INT_EN			0x4E
-
-/* ADP5585 Registers */
-#define ADP5585_GPI_STATUS_A		0x15
-#define ADP5585_GPI_STATUS_B		0x16
-#define ADP5585_RPULL_CONFIG_A		0x17
-#define ADP5585_RPULL_CONFIG_B		0x18
-#define ADP5585_RPULL_CONFIG_C		0x19
-#define ADP5585_RPULL_CONFIG_D		0x1A
-#define ADP5585_GPI_INT_LEVEL_A		0x1B
-#define ADP5585_GPI_INT_LEVEL_B		0x1C
-#define ADP5585_GPI_EVENT_EN_A		0x1D
-#define ADP5585_GPI_EVENT_EN_B		0x1E
-#define ADP5585_GPI_INTERRUPT_EN_A	0x1F
-#define ADP5585_GPI_INTERRUPT_EN_B	0x20
-#define ADP5585_DEBOUNCE_DIS_A		0x21
-#define ADP5585_DEBOUNCE_DIS_B		0x22
-#define ADP5585_GPO_DATA_OUT_A		0x23
-#define ADP5585_GPO_DATA_OUT_B		0x24
-#define ADP5585_GPO_OUT_MODE_A		0x25
-#define ADP5585_GPO_OUT_MODE_B		0x26
-#define ADP5585_GPIO_DIRECTION_A	0x27
-#define ADP5585_GPIO_DIRECTION_B	0x28
-#define ADP5585_RESET1_EVENT_A		0x29
-#define ADP5585_RESET1_EVENT_B		0x2A
-#define ADP5585_RESET1_EVENT_C		0x2B
-#define ADP5585_RESET2_EVENT_A		0x2C
-#define ADP5585_RESET2_EVENT_B		0x2D
-#define ADP5585_RESET_CFG		0x2E
-#define ADP5585_PWM_OFFT_LOW		0x2F
-#define ADP5585_PWM_OFFT_HIGH		0x30
-#define ADP5585_PWM_ONT_LOW		0x31
-#define ADP5585_PWM_ONT_HIGH		0x32
-#define ADP5585_PWM_CFG			0x33
-#define ADP5585_LOGIC_CFG		0x34
-#define ADP5585_LOGIC_FF_CFG		0x35
-#define ADP5585_LOGIC_INT_EVENT_EN	0x36
-#define ADP5585_POLL_PTIME_CFG		0x37
-#define ADP5585_PIN_CONFIG_A		0x38
-#define ADP5585_PIN_CONFIG_B		0x39
-#define ADP5585_PIN_CONFIG_D		0x3A
-#define ADP5585_GENERAL_CFG		0x3B
-#define ADP5585_INT_EN			0x3C
-
-/* ID Register */
-#define ADP5589_5_DEVICE_ID_MASK	0xF
-#define ADP5589_5_MAN_ID_MASK		0xF
-#define ADP5589_5_MAN_ID_SHIFT		4
-#define ADP5589_5_MAN_ID		0x02
-
-/* GENERAL_CFG Register */
-#define OSC_EN		BIT(7)
-#define CORE_CLK(x)	(((x) & 0x3) << 5)
-#define LCK_TRK_LOGIC	BIT(4)		/* ADP5589 only */
-#define LCK_TRK_GPI	BIT(3)		/* ADP5589 only */
-#define INT_CFG		BIT(1)
-#define RST_CFG		BIT(0)
-
-/* INT_EN Register */
-#define LOGIC2_IEN	BIT(5)		/* ADP5589 only */
-#define LOGIC1_IEN	BIT(4)
-#define LOCK_IEN	BIT(3)		/* ADP5589 only */
-#define OVRFLOW_IEN	BIT(2)
-#define GPI_IEN		BIT(1)
-#define EVENT_IEN	BIT(0)
-
-/* Interrupt Status Register */
-#define LOGIC2_INT	BIT(5)		/* ADP5589 only */
-#define LOGIC1_INT	BIT(4)
-#define LOCK_INT	BIT(3)		/* ADP5589 only */
-#define OVRFLOW_INT	BIT(2)
-#define GPI_INT		BIT(1)
-#define EVENT_INT	BIT(0)
-
-/* STATUS Register */
-#define LOGIC2_STAT	BIT(7)		/* ADP5589 only */
-#define LOGIC1_STAT	BIT(6)
-#define LOCK_STAT	BIT(5)		/* ADP5589 only */
-#define KEC		0x1F
-
-/* PIN_CONFIG_D Register */
-#define C4_EXTEND_CFG	BIT(6)		/* RESET2 */
-#define R4_EXTEND_CFG	BIT(5)		/* RESET1 */
-
-/* LOCK_CFG */
-#define LOCK_EN		BIT(0)
-
-#define PTIME_MASK	0x3
-#define LTIME_MASK	0x3		/* ADP5589 only */
-
-/* Key Event Register xy */
-#define KEY_EV_PRESSED	BIT(7)
-#define KEY_EV_MASK	0x7F
-
-#define KEYP_MAX_EVENT		16
-#define ADP5589_MAXGPIO		19
-#define ADP5585_MAXGPIO		11 /* 10 on the ADP5585-01, 11 on ADP5585-02 */
-
-enum {
-	ADP5589,
-	ADP5585_01,
-	ADP5585_02
-};
-
-struct adp_constants {
-	u8 maxgpio;
-	u8 keymapsize;
-	u8 gpi_pin_row_base;
-	u8 gpi_pin_row_end;
-	u8 gpi_pin_col_base;
-	u8 gpi_pin_base;
-	u8 gpi_pin_end;
-	u8 gpimapsize_max;
-	u8 max_row_num;
-	u8 max_col_num;
-	u8 row_mask;
-	u8 col_mask;
-	u8 col_shift;
-	u8 c4_extend_cfg;
-	u8 (*bank) (u8 offset);
-	u8 (*bit) (u8 offset);
-	u8 (*reg) (u8 reg);
-};
-
-struct adp5589_kpad {
-	struct i2c_client *client;
-	struct input_dev *input;
-	const struct adp_constants *var;
-	unsigned short keycode[ADP5589_KEYMAPSIZE];
-	const struct adp5589_gpi_map *gpimap;
-	unsigned short gpimapsize;
-	unsigned extend_cfg;
-	bool is_adp5585;
-	bool support_row5;
-#ifdef CONFIG_GPIOLIB
-	unsigned char gpiomap[ADP5589_MAXGPIO];
-	struct gpio_chip gc;
-	struct mutex gpio_lock;	/* Protect cached dir, dat_out */
-	u8 dat_out[3];
-	u8 dir[3];
-#endif
-};
-
-/*
- *  ADP5589 / ADP5585 derivative / variant handling
- */
-
-
-/* ADP5589 */
-
-static unsigned char adp5589_bank(unsigned char offset)
-{
-	return offset >> 3;
-}
-
-static unsigned char adp5589_bit(unsigned char offset)
-{
-	return 1u << (offset & 0x7);
-}
-
-static unsigned char adp5589_reg(unsigned char reg)
-{
-	return reg;
-}
-
-static const struct adp_constants const_adp5589 = {
-	.maxgpio		= ADP5589_MAXGPIO,
-	.keymapsize		= ADP5589_KEYMAPSIZE,
-	.gpi_pin_row_base	= ADP5589_GPI_PIN_ROW_BASE,
-	.gpi_pin_row_end	= ADP5589_GPI_PIN_ROW_END,
-	.gpi_pin_col_base	= ADP5589_GPI_PIN_COL_BASE,
-	.gpi_pin_base		= ADP5589_GPI_PIN_BASE,
-	.gpi_pin_end		= ADP5589_GPI_PIN_END,
-	.gpimapsize_max		= ADP5589_GPIMAPSIZE_MAX,
-	.c4_extend_cfg		= 12,
-	.max_row_num		= ADP5589_MAX_ROW_NUM,
-	.max_col_num		= ADP5589_MAX_COL_NUM,
-	.row_mask		= ADP5589_ROW_MASK,
-	.col_mask		= ADP5589_COL_MASK,
-	.col_shift		= ADP5589_COL_SHIFT,
-	.bank			= adp5589_bank,
-	.bit			= adp5589_bit,
-	.reg			= adp5589_reg,
-};
-
-/* ADP5585 */
-
-static unsigned char adp5585_bank(unsigned char offset)
-{
-	return offset > ADP5585_MAX_ROW_NUM;
-}
-
-static unsigned char adp5585_bit(unsigned char offset)
-{
-	return (offset > ADP5585_MAX_ROW_NUM) ?
-		1u << (offset - ADP5585_COL_SHIFT) : 1u << offset;
-}
-
-static const unsigned char adp5585_reg_lut[] = {
-	[ADP5589_GPI_STATUS_A]		= ADP5585_GPI_STATUS_A,
-	[ADP5589_GPI_STATUS_B]		= ADP5585_GPI_STATUS_B,
-	[ADP5589_RPULL_CONFIG_A]	= ADP5585_RPULL_CONFIG_A,
-	[ADP5589_RPULL_CONFIG_B]	= ADP5585_RPULL_CONFIG_B,
-	[ADP5589_RPULL_CONFIG_C]	= ADP5585_RPULL_CONFIG_C,
-	[ADP5589_RPULL_CONFIG_D]	= ADP5585_RPULL_CONFIG_D,
-	[ADP5589_GPI_INT_LEVEL_A]	= ADP5585_GPI_INT_LEVEL_A,
-	[ADP5589_GPI_INT_LEVEL_B]	= ADP5585_GPI_INT_LEVEL_B,
-	[ADP5589_GPI_EVENT_EN_A]	= ADP5585_GPI_EVENT_EN_A,
-	[ADP5589_GPI_EVENT_EN_B]	= ADP5585_GPI_EVENT_EN_B,
-	[ADP5589_GPI_INTERRUPT_EN_A]	= ADP5585_GPI_INTERRUPT_EN_A,
-	[ADP5589_GPI_INTERRUPT_EN_B]	= ADP5585_GPI_INTERRUPT_EN_B,
-	[ADP5589_DEBOUNCE_DIS_A]	= ADP5585_DEBOUNCE_DIS_A,
-	[ADP5589_DEBOUNCE_DIS_B]	= ADP5585_DEBOUNCE_DIS_B,
-	[ADP5589_GPO_DATA_OUT_A]	= ADP5585_GPO_DATA_OUT_A,
-	[ADP5589_GPO_DATA_OUT_B]	= ADP5585_GPO_DATA_OUT_B,
-	[ADP5589_GPO_OUT_MODE_A]	= ADP5585_GPO_OUT_MODE_A,
-	[ADP5589_GPO_OUT_MODE_B]	= ADP5585_GPO_OUT_MODE_B,
-	[ADP5589_GPIO_DIRECTION_A]	= ADP5585_GPIO_DIRECTION_A,
-	[ADP5589_GPIO_DIRECTION_B]	= ADP5585_GPIO_DIRECTION_B,
-	[ADP5589_RESET1_EVENT_A]	= ADP5585_RESET1_EVENT_A,
-	[ADP5589_RESET1_EVENT_B]	= ADP5585_RESET1_EVENT_B,
-	[ADP5589_RESET1_EVENT_C]	= ADP5585_RESET1_EVENT_C,
-	[ADP5589_RESET2_EVENT_A]	= ADP5585_RESET2_EVENT_A,
-	[ADP5589_RESET2_EVENT_B]	= ADP5585_RESET2_EVENT_B,
-	[ADP5589_RESET_CFG]		= ADP5585_RESET_CFG,
-	[ADP5589_PWM_OFFT_LOW]		= ADP5585_PWM_OFFT_LOW,
-	[ADP5589_PWM_OFFT_HIGH]		= ADP5585_PWM_OFFT_HIGH,
-	[ADP5589_PWM_ONT_LOW]		= ADP5585_PWM_ONT_LOW,
-	[ADP5589_PWM_ONT_HIGH]		= ADP5585_PWM_ONT_HIGH,
-	[ADP5589_PWM_CFG]		= ADP5585_PWM_CFG,
-	[ADP5589_LOGIC_1_CFG]		= ADP5585_LOGIC_CFG,
-	[ADP5589_LOGIC_FF_CFG]		= ADP5585_LOGIC_FF_CFG,
-	[ADP5589_LOGIC_INT_EVENT_EN]	= ADP5585_LOGIC_INT_EVENT_EN,
-	[ADP5589_POLL_PTIME_CFG]	= ADP5585_POLL_PTIME_CFG,
-	[ADP5589_PIN_CONFIG_A]		= ADP5585_PIN_CONFIG_A,
-	[ADP5589_PIN_CONFIG_B]		= ADP5585_PIN_CONFIG_B,
-	[ADP5589_PIN_CONFIG_D]		= ADP5585_PIN_CONFIG_D,
-	[ADP5589_GENERAL_CFG]		= ADP5585_GENERAL_CFG,
-	[ADP5589_INT_EN]		= ADP5585_INT_EN,
-};
-
-static unsigned char adp5585_reg(unsigned char reg)
-{
-	return adp5585_reg_lut[reg];
-}
-
-static const struct adp_constants const_adp5585 = {
-	.maxgpio		= ADP5585_MAXGPIO,
-	.keymapsize		= ADP5585_KEYMAPSIZE,
-	.gpi_pin_row_base	= ADP5585_GPI_PIN_ROW_BASE,
-	.gpi_pin_row_end	= ADP5585_GPI_PIN_ROW_END,
-	.gpi_pin_col_base	= ADP5585_GPI_PIN_COL_BASE,
-	.gpi_pin_base		= ADP5585_GPI_PIN_BASE,
-	.gpi_pin_end		= ADP5585_GPI_PIN_END,
-	.gpimapsize_max		= ADP5585_GPIMAPSIZE_MAX,
-	.c4_extend_cfg		= 10,
-	.max_row_num		= ADP5585_MAX_ROW_NUM,
-	.max_col_num		= ADP5585_MAX_COL_NUM,
-	.row_mask		= ADP5585_ROW_MASK,
-	.col_mask		= ADP5585_COL_MASK,
-	.col_shift		= ADP5585_COL_SHIFT,
-	.bank			= adp5585_bank,
-	.bit			= adp5585_bit,
-	.reg			= adp5585_reg,
-};
-
-static int adp5589_read(struct i2c_client *client, u8 reg)
-{
-	int ret = i2c_smbus_read_byte_data(client, reg);
-
-	if (ret < 0)
-		dev_err(&client->dev, "Read Error\n");
-
-	return ret;
-}
-
-static int adp5589_write(struct i2c_client *client, u8 reg, u8 val)
-{
-	return i2c_smbus_write_byte_data(client, reg, val);
-}
-
-#ifdef CONFIG_GPIOLIB
-static int adp5589_gpio_get_value(struct gpio_chip *chip, unsigned off)
-{
-	struct adp5589_kpad *kpad = gpiochip_get_data(chip);
-	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
-	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-	int val;
-
-	mutex_lock(&kpad->gpio_lock);
-	if (kpad->dir[bank] & bit)
-		val = kpad->dat_out[bank];
-	else
-		val = adp5589_read(kpad->client,
-				   kpad->var->reg(ADP5589_GPI_STATUS_A) + bank);
-	mutex_unlock(&kpad->gpio_lock);
-
-	return !!(val & bit);
-}
-
-static void adp5589_gpio_set_value(struct gpio_chip *chip,
-				   unsigned off, int val)
-{
-	struct adp5589_kpad *kpad = gpiochip_get_data(chip);
-	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
-	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-
-	guard(mutex)(&kpad->gpio_lock);
-
-	if (val)
-		kpad->dat_out[bank] |= bit;
-	else
-		kpad->dat_out[bank] &= ~bit;
-
-	adp5589_write(kpad->client, kpad->var->reg(ADP5589_GPO_DATA_OUT_A) +
-		      bank, kpad->dat_out[bank]);
-}
-
-static int adp5589_gpio_direction_input(struct gpio_chip *chip, unsigned off)
-{
-	struct adp5589_kpad *kpad = gpiochip_get_data(chip);
-	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
-	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-
-	guard(mutex)(&kpad->gpio_lock);
-
-	kpad->dir[bank] &= ~bit;
-	return adp5589_write(kpad->client,
-			     kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
-			     kpad->dir[bank]);
-}
-
-static int adp5589_gpio_direction_output(struct gpio_chip *chip,
-					 unsigned off, int val)
-{
-	struct adp5589_kpad *kpad = gpiochip_get_data(chip);
-	unsigned int bank = kpad->var->bank(kpad->gpiomap[off]);
-	unsigned int bit = kpad->var->bit(kpad->gpiomap[off]);
-	int error;
-
-	guard(mutex)(&kpad->gpio_lock);
-
-	kpad->dir[bank] |= bit;
-
-	if (val)
-		kpad->dat_out[bank] |= bit;
-	else
-		kpad->dat_out[bank] &= ~bit;
-
-	error = adp5589_write(kpad->client,
-			      kpad->var->reg(ADP5589_GPO_DATA_OUT_A) + bank,
-			      kpad->dat_out[bank]);
-	if (error)
-		return error;
-
-	error = adp5589_write(kpad->client,
-			      kpad->var->reg(ADP5589_GPIO_DIRECTION_A) + bank,
-			      kpad->dir[bank]);
-	if (error)
-		return error;
-
-	return 0;
-}
-
-static int adp5589_build_gpiomap(struct adp5589_kpad *kpad,
-				const struct adp5589_kpad_platform_data *pdata)
-{
-	bool pin_used[ADP5589_MAXGPIO];
-	int n_unused = 0;
-	int i;
-
-	memset(pin_used, false, sizeof(pin_used));
-
-	for (i = 0; i < kpad->var->maxgpio; i++)
-		if (pdata->keypad_en_mask & BIT(i))
-			pin_used[i] = true;
-
-	for (i = 0; i < kpad->gpimapsize; i++)
-		pin_used[kpad->gpimap[i].pin - kpad->var->gpi_pin_base] = true;
-
-	if (kpad->extend_cfg & R4_EXTEND_CFG)
-		pin_used[4] = true;
-
-	if (kpad->extend_cfg & C4_EXTEND_CFG)
-		pin_used[kpad->var->c4_extend_cfg] = true;
-
-	if (!kpad->support_row5)
-		pin_used[5] = true;
-
-	for (i = 0; i < kpad->var->maxgpio; i++)
-		if (!pin_used[i])
-			kpad->gpiomap[n_unused++] = i;
-
-	return n_unused;
-}
-
-static int adp5589_gpio_add(struct adp5589_kpad *kpad)
-{
-	struct device *dev = &kpad->client->dev;
-	const struct adp5589_kpad_platform_data *pdata = dev_get_platdata(dev);
-	const struct adp5589_gpio_platform_data *gpio_data = pdata->gpio_data;
-	int i, error;
-
-	if (!gpio_data)
-		return 0;
-
-	kpad->gc.parent = dev;
-	kpad->gc.ngpio = adp5589_build_gpiomap(kpad, pdata);
-	if (kpad->gc.ngpio == 0) {
-		dev_info(dev, "No unused gpios left to export\n");
-		return 0;
-	}
-
-	kpad->gc.direction_input = adp5589_gpio_direction_input;
-	kpad->gc.direction_output = adp5589_gpio_direction_output;
-	kpad->gc.get = adp5589_gpio_get_value;
-	kpad->gc.set = adp5589_gpio_set_value;
-	kpad->gc.can_sleep = 1;
-
-	kpad->gc.base = gpio_data->gpio_start;
-	kpad->gc.label = kpad->client->name;
-	kpad->gc.owner = THIS_MODULE;
-
-	mutex_init(&kpad->gpio_lock);
-
-	error = devm_gpiochip_add_data(dev, &kpad->gc, kpad);
-	if (error)
-		return error;
-
-	for (i = 0; i <= kpad->var->bank(kpad->var->maxgpio); i++) {
-		kpad->dat_out[i] = adp5589_read(kpad->client, kpad->var->reg(
-						ADP5589_GPO_DATA_OUT_A) + i);
-		kpad->dir[i] = adp5589_read(kpad->client, kpad->var->reg(
-					    ADP5589_GPIO_DIRECTION_A) + i);
-	}
-
-	return 0;
-}
-#else
-static inline int adp5589_gpio_add(struct adp5589_kpad *kpad)
-{
-	return 0;
-}
-#endif
-
-static void adp5589_report_switches(struct adp5589_kpad *kpad,
-				    int key, int key_val)
-{
-	int i;
-
-	for (i = 0; i < kpad->gpimapsize; i++) {
-		if (key_val == kpad->gpimap[i].pin) {
-			input_report_switch(kpad->input,
-					    kpad->gpimap[i].sw_evt,
-					    key & KEY_EV_PRESSED);
-			break;
-		}
-	}
-}
-
-static void adp5589_report_events(struct adp5589_kpad *kpad, int ev_cnt)
-{
-	int i;
-
-	for (i = 0; i < ev_cnt; i++) {
-		int key = adp5589_read(kpad->client, ADP5589_5_FIFO_1 + i);
-		int key_val = key & KEY_EV_MASK;
-
-		if (key_val >= kpad->var->gpi_pin_base &&
-		    key_val <= kpad->var->gpi_pin_end) {
-			adp5589_report_switches(kpad, key, key_val);
-		} else {
-			input_report_key(kpad->input,
-					 kpad->keycode[key_val - 1],
-					 key & KEY_EV_PRESSED);
-		}
-	}
-}
-
-static irqreturn_t adp5589_irq(int irq, void *handle)
-{
-	struct adp5589_kpad *kpad = handle;
-	struct i2c_client *client = kpad->client;
-	int status, ev_cnt;
-
-	status = adp5589_read(client, ADP5589_5_INT_STATUS);
-
-	if (status & OVRFLOW_INT)	/* Unlikely and should never happen */
-		dev_err(&client->dev, "Event Overflow Error\n");
-
-	if (status & EVENT_INT) {
-		ev_cnt = adp5589_read(client, ADP5589_5_STATUS) & KEC;
-		if (ev_cnt) {
-			adp5589_report_events(kpad, ev_cnt);
-			input_sync(kpad->input);
-		}
-	}
-
-	adp5589_write(client, ADP5589_5_INT_STATUS, status); /* Status is W1C */
-
-	return IRQ_HANDLED;
-}
-
-static int adp5589_get_evcode(struct adp5589_kpad *kpad, unsigned short key)
-{
-	int i;
-
-	for (i = 0; i < kpad->var->keymapsize; i++)
-		if (key == kpad->keycode[i])
-			return (i + 1) | KEY_EV_PRESSED;
-
-	dev_err(&kpad->client->dev, "RESET/UNLOCK key not in keycode map\n");
-
-	return -EINVAL;
-}
-
-static int adp5589_setup(struct adp5589_kpad *kpad)
-{
-	struct i2c_client *client = kpad->client;
-	const struct adp5589_kpad_platform_data *pdata =
-		dev_get_platdata(&client->dev);
-	u8 (*reg) (u8) = kpad->var->reg;
-	unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0;
-	unsigned char pull_mask = 0;
-	int i, ret;
-
-	ret = adp5589_write(client, reg(ADP5589_PIN_CONFIG_A),
-			    pdata->keypad_en_mask & kpad->var->row_mask);
-	ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_B),
-			     (pdata->keypad_en_mask >> kpad->var->col_shift) &
-			     kpad->var->col_mask);
-
-	if (!kpad->is_adp5585)
-		ret |= adp5589_write(client, ADP5589_PIN_CONFIG_C,
-				     (pdata->keypad_en_mask >> 16) & 0xFF);
-
-	if (!kpad->is_adp5585 && pdata->en_keylock) {
-		ret |= adp5589_write(client, ADP5589_UNLOCK1,
-				     pdata->unlock_key1);
-		ret |= adp5589_write(client, ADP5589_UNLOCK2,
-				     pdata->unlock_key2);
-		ret |= adp5589_write(client, ADP5589_UNLOCK_TIMERS,
-				     pdata->unlock_timer & LTIME_MASK);
-		ret |= adp5589_write(client, ADP5589_LOCK_CFG, LOCK_EN);
-	}
-
-	for (i = 0; i < KEYP_MAX_EVENT; i++)
-		ret |= adp5589_read(client, ADP5589_5_FIFO_1 + i);
-
-	for (i = 0; i < pdata->gpimapsize; i++) {
-		unsigned short pin = pdata->gpimap[i].pin;
-
-		if (pin <= kpad->var->gpi_pin_row_end) {
-			evt_mode1 |= BIT(pin - kpad->var->gpi_pin_row_base);
-		} else {
-			evt_mode2 |=
-			    BIT(pin - kpad->var->gpi_pin_col_base) & 0xFF;
-			if (!kpad->is_adp5585)
-				evt_mode3 |=
-				    BIT(pin - kpad->var->gpi_pin_col_base) >> 8;
-		}
-	}
-
-	if (pdata->gpimapsize) {
-		ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_A),
-				     evt_mode1);
-		ret |= adp5589_write(client, reg(ADP5589_GPI_EVENT_EN_B),
-				     evt_mode2);
-		if (!kpad->is_adp5585)
-			ret |= adp5589_write(client,
-					     reg(ADP5589_GPI_EVENT_EN_C),
-					     evt_mode3);
-	}
-
-	if (pdata->pull_dis_mask & pdata->pullup_en_100k &
-		pdata->pullup_en_300k & pdata->pulldown_en_300k)
-		dev_warn(&client->dev, "Conflicting pull resistor config\n");
-
-	for (i = 0; i <= kpad->var->max_row_num; i++) {
-		unsigned int val = 0, bit = BIT(i);
-		if (pdata->pullup_en_300k & bit)
-			val = 0;
-		else if (pdata->pulldown_en_300k & bit)
-			val = 1;
-		else if (pdata->pullup_en_100k & bit)
-			val = 2;
-		else if (pdata->pull_dis_mask & bit)
-			val = 3;
-
-		pull_mask |= val << (2 * (i & 0x3));
-
-		if (i % 4 == 3 || i == kpad->var->max_row_num) {
-			ret |= adp5589_write(client, reg(ADP5585_RPULL_CONFIG_A)
-					     + (i >> 2), pull_mask);
-			pull_mask = 0;
-		}
-	}
-
-	for (i = 0; i <= kpad->var->max_col_num; i++) {
-		unsigned int val = 0, bit = BIT(i + kpad->var->col_shift);
-		if (pdata->pullup_en_300k & bit)
-			val = 0;
-		else if (pdata->pulldown_en_300k & bit)
-			val = 1;
-		else if (pdata->pullup_en_100k & bit)
-			val = 2;
-		else if (pdata->pull_dis_mask & bit)
-			val = 3;
-
-		pull_mask |= val << (2 * (i & 0x3));
-
-		if (i % 4 == 3 || i == kpad->var->max_col_num) {
-			ret |= adp5589_write(client,
-					     reg(ADP5585_RPULL_CONFIG_C) +
-					     (i >> 2), pull_mask);
-			pull_mask = 0;
-		}
-	}
-
-	if (pdata->reset1_key_1 && pdata->reset1_key_2 && pdata->reset1_key_3) {
-		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_A),
-				     adp5589_get_evcode(kpad,
-							pdata->reset1_key_1));
-		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_B),
-				     adp5589_get_evcode(kpad,
-							pdata->reset1_key_2));
-		ret |= adp5589_write(client, reg(ADP5589_RESET1_EVENT_C),
-				     adp5589_get_evcode(kpad,
-							pdata->reset1_key_3));
-		kpad->extend_cfg |= R4_EXTEND_CFG;
-	}
-
-	if (pdata->reset2_key_1 && pdata->reset2_key_2) {
-		ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_A),
-				     adp5589_get_evcode(kpad,
-							pdata->reset2_key_1));
-		ret |= adp5589_write(client, reg(ADP5589_RESET2_EVENT_B),
-				     adp5589_get_evcode(kpad,
-							pdata->reset2_key_2));
-		kpad->extend_cfg |= C4_EXTEND_CFG;
-	}
-
-	if (kpad->extend_cfg) {
-		ret |= adp5589_write(client, reg(ADP5589_RESET_CFG),
-				     pdata->reset_cfg);
-		ret |= adp5589_write(client, reg(ADP5589_PIN_CONFIG_D),
-				     kpad->extend_cfg);
-	}
-
-	ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_A),
-			    pdata->debounce_dis_mask & kpad->var->row_mask);
-
-	ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_B),
-			     (pdata->debounce_dis_mask >> kpad->var->col_shift)
-			     & kpad->var->col_mask);
-
-	if (!kpad->is_adp5585)
-		ret |= adp5589_write(client, reg(ADP5589_DEBOUNCE_DIS_C),
-				     (pdata->debounce_dis_mask >> 16) & 0xFF);
-
-	ret |= adp5589_write(client, reg(ADP5589_POLL_PTIME_CFG),
-			     pdata->scan_cycle_time & PTIME_MASK);
-	ret |= adp5589_write(client, ADP5589_5_INT_STATUS,
-			     (kpad->is_adp5585 ? 0 : LOGIC2_INT) |
-			     LOGIC1_INT | OVRFLOW_INT |
-			     (kpad->is_adp5585 ? 0 : LOCK_INT) |
-			     GPI_INT | EVENT_INT);	/* Status is W1C */
-
-	ret |= adp5589_write(client, reg(ADP5589_GENERAL_CFG),
-			     INT_CFG | OSC_EN | CORE_CLK(3));
-	ret |= adp5589_write(client, reg(ADP5589_INT_EN),
-			     OVRFLOW_IEN | GPI_IEN | EVENT_IEN);
-
-	if (ret < 0) {
-		dev_err(&client->dev, "Write Error\n");
-		return ret;
-	}
-
-	return 0;
-}
-
-static void adp5589_report_switch_state(struct adp5589_kpad *kpad)
-{
-	int gpi_stat_tmp, pin_loc;
-	int i;
-	int gpi_stat1 = adp5589_read(kpad->client,
-				     kpad->var->reg(ADP5589_GPI_STATUS_A));
-	int gpi_stat2 = adp5589_read(kpad->client,
-				     kpad->var->reg(ADP5589_GPI_STATUS_B));
-	int gpi_stat3 = !kpad->is_adp5585 ?
-			adp5589_read(kpad->client, ADP5589_GPI_STATUS_C) : 0;
-
-	for (i = 0; i < kpad->gpimapsize; i++) {
-		unsigned short pin = kpad->gpimap[i].pin;
-
-		if (pin <= kpad->var->gpi_pin_row_end) {
-			gpi_stat_tmp = gpi_stat1;
-			pin_loc = pin - kpad->var->gpi_pin_row_base;
-		} else if ((pin - kpad->var->gpi_pin_col_base) < 8) {
-			gpi_stat_tmp = gpi_stat2;
-			pin_loc = pin - kpad->var->gpi_pin_col_base;
-		} else {
-			gpi_stat_tmp = gpi_stat3;
-			pin_loc = pin - kpad->var->gpi_pin_col_base - 8;
-		}
-
-		if (gpi_stat_tmp < 0) {
-			dev_err(&kpad->client->dev,
-				"Can't read GPIO_DAT_STAT switch %d, default to OFF\n",
-				pin);
-			gpi_stat_tmp = 0;
-		}
-
-		input_report_switch(kpad->input,
-				    kpad->gpimap[i].sw_evt,
-				    !(gpi_stat_tmp & BIT(pin_loc)));
-	}
-
-	input_sync(kpad->input);
-}
-
-static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
-{
-	struct i2c_client *client = kpad->client;
-	const struct adp5589_kpad_platform_data *pdata =
-		dev_get_platdata(&client->dev);
-	struct input_dev *input;
-	unsigned int i;
-	int error;
-
-	if (!((pdata->keypad_en_mask & kpad->var->row_mask) &&
-			(pdata->keypad_en_mask >> kpad->var->col_shift)) ||
-			!pdata->keymap) {
-		dev_err(&client->dev, "no rows, cols or keymap from pdata\n");
-		return -EINVAL;
-	}
-
-	if (pdata->keymapsize != kpad->var->keymapsize) {
-		dev_err(&client->dev, "invalid keymapsize\n");
-		return -EINVAL;
-	}
-
-	if (!pdata->gpimap && pdata->gpimapsize) {
-		dev_err(&client->dev, "invalid gpimap from pdata\n");
-		return -EINVAL;
-	}
-
-	if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
-		dev_err(&client->dev, "invalid gpimapsize\n");
-		return -EINVAL;
-	}
-
-	for (i = 0; i < pdata->gpimapsize; i++) {
-		unsigned short pin = pdata->gpimap[i].pin;
-
-		if (pin < kpad->var->gpi_pin_base ||
-				pin > kpad->var->gpi_pin_end) {
-			dev_err(&client->dev, "invalid gpi pin data\n");
-			return -EINVAL;
-		}
-
-		if (BIT(pin - kpad->var->gpi_pin_row_base) &
-				pdata->keypad_en_mask) {
-			dev_err(&client->dev, "invalid gpi row/col data\n");
-			return -EINVAL;
-		}
-	}
-
-	if (!client->irq) {
-		dev_err(&client->dev, "no IRQ?\n");
-		return -EINVAL;
-	}
-
-	input = devm_input_allocate_device(&client->dev);
-	if (!input)
-		return -ENOMEM;
-
-	kpad->input = input;
-
-	input->name = client->name;
-	input->phys = "adp5589-keys/input0";
-	input->dev.parent = &client->dev;
-
-	input_set_drvdata(input, kpad);
-
-	input->id.bustype = BUS_I2C;
-	input->id.vendor = 0x0001;
-	input->id.product = 0x0001;
-	input->id.version = revid;
-
-	input->keycodesize = sizeof(kpad->keycode[0]);
-	input->keycodemax = pdata->keymapsize;
-	input->keycode = kpad->keycode;
-
-	memcpy(kpad->keycode, pdata->keymap,
-	       pdata->keymapsize * input->keycodesize);
-
-	kpad->gpimap = pdata->gpimap;
-	kpad->gpimapsize = pdata->gpimapsize;
-
-	/* setup input device */
-	__set_bit(EV_KEY, input->evbit);
-
-	if (pdata->repeat)
-		__set_bit(EV_REP, input->evbit);
-
-	for (i = 0; i < input->keycodemax; i++)
-		if (kpad->keycode[i] <= KEY_MAX)
-			__set_bit(kpad->keycode[i], input->keybit);
-	__clear_bit(KEY_RESERVED, input->keybit);
-
-	if (kpad->gpimapsize)
-		__set_bit(EV_SW, input->evbit);
-	for (i = 0; i < kpad->gpimapsize; i++)
-		__set_bit(kpad->gpimap[i].sw_evt, input->swbit);
-
-	error = input_register_device(input);
-	if (error) {
-		dev_err(&client->dev, "unable to register input device\n");
-		return error;
-	}
-
-	error = devm_request_threaded_irq(&client->dev, client->irq,
-					  NULL, adp5589_irq,
-					  IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					  client->dev.driver->name, kpad);
-	if (error) {
-		dev_err(&client->dev, "unable to request irq %d\n", client->irq);
-		return error;
-	}
-
-	return 0;
-}
-
-static void adp5589_clear_config(void *data)
-{
-	struct adp5589_kpad *kpad = data;
-
-	adp5589_write(kpad->client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
-}
-
-static int adp5589_probe(struct i2c_client *client)
-{
-	const struct i2c_device_id *id = i2c_client_get_device_id(client);
-	struct adp5589_kpad *kpad;
-	const struct adp5589_kpad_platform_data *pdata =
-		dev_get_platdata(&client->dev);
-	unsigned int revid;
-	int error, ret;
-
-	if (!i2c_check_functionality(client->adapter,
-				     I2C_FUNC_SMBUS_BYTE_DATA)) {
-		dev_err(&client->dev, "SMBUS Byte Data not Supported\n");
-		return -EIO;
-	}
-
-	if (!pdata) {
-		dev_err(&client->dev, "no platform data?\n");
-		return -EINVAL;
-	}
-
-	kpad = devm_kzalloc(&client->dev, sizeof(*kpad), GFP_KERNEL);
-	if (!kpad)
-		return -ENOMEM;
-
-	kpad->client = client;
-
-	switch (id->driver_data) {
-	case ADP5585_02:
-		kpad->support_row5 = true;
-		fallthrough;
-	case ADP5585_01:
-		kpad->is_adp5585 = true;
-		kpad->var = &const_adp5585;
-		break;
-	case ADP5589:
-		kpad->support_row5 = true;
-		kpad->var = &const_adp5589;
-		break;
-	}
-
-	error = devm_add_action_or_reset(&client->dev, adp5589_clear_config,
-					 kpad);
-	if (error)
-		return error;
-
-	ret = adp5589_read(client, ADP5589_5_ID);
-	if (ret < 0)
-		return ret;
-
-	revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
-
-	if (pdata->keymapsize) {
-		error = adp5589_keypad_add(kpad, revid);
-		if (error)
-			return error;
-	}
-
-	error = adp5589_setup(kpad);
-	if (error)
-		return error;
-
-	if (kpad->gpimapsize)
-		adp5589_report_switch_state(kpad);
-
-	error = adp5589_gpio_add(kpad);
-	if (error)
-		return error;
-
-	dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
-	return 0;
-}
-
-static int adp5589_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adp5589_kpad *kpad = i2c_get_clientdata(client);
-
-	if (kpad->input)
-		disable_irq(client->irq);
-
-	return 0;
-}
-
-static int adp5589_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct adp5589_kpad *kpad = i2c_get_clientdata(client);
-
-	if (kpad->input)
-		enable_irq(client->irq);
-
-	return 0;
-}
-
-static DEFINE_SIMPLE_DEV_PM_OPS(adp5589_dev_pm_ops, adp5589_suspend, adp5589_resume);
-
-static const struct i2c_device_id adp5589_id[] = {
-	{"adp5589-keys", ADP5589},
-	{"adp5585-keys", ADP5585_01},
-	{"adp5585-02-keys", ADP5585_02}, /* Adds ROW5 to ADP5585 */
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, adp5589_id);
-
-static struct i2c_driver adp5589_driver = {
-	.driver = {
-		.name = KBUILD_MODNAME,
-		.pm = pm_sleep_ptr(&adp5589_dev_pm_ops),
-	},
-	.probe = adp5589_probe,
-	.id_table = adp5589_id,
-};
-
-module_i2c_driver(adp5589_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("ADP5589/ADP5585 Keypad driver");

-- 
2.50.0

Re: [PATCH v6 17/20] Input: adp5589: remove the driver

[Uwe Kleine-König]

[-- Attachment #1: Type: text/plain, Size: 1021 bytes --]

On Mon, Jun 30, 2025 at 12:53:08PM +0100, Nuno Sá via B4 Relay wrote:
> From: Nuno Sá <nuno.sa@analog.com>
> 
> The adp5589 support is based on legacy platform data and there's no
> upstream pataform using this device.

s/pataform/platform/ ?

> Moreover, recently, with
> 
> commit
> 480a8ad683d7 ("mfd: adp5585: Add Analog Devices ADP5585 core support")
> 
> we overlapped support for the adp5585 device (gpiochip part of it) but
> since it actually makes sense for the device to be supported under MFD, we
> can complement it and add the keymap support for it (properly based on FW
> properties). And that is what
> 
> commit
> 04840c5363a6 ("Input: adp5585: Add Analog Devices ADP5585/89 support")
> 
> is doing.

I personally would drop the newlines around (and in) the commit
reference.

> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> Signed-off-by: Nuno Sá <nuno.sa@analog.com>
> ---

Best regards
Uwe

[-- Attachment #2: signature.asc --]
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[PATCH v6 18/20] mfd: adp5585: Support getting vdd regulator

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Make sure we get and enable the VDD supply (if available).

Changes in v6:
 - Removed new line added by mistake.

Reviewed-by: Lee Jones <lee@kernel.org>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 8f0fd737442611e00e61ea992dd6437dbaf31292..11a26f668653439378f9eb31d053c45772a940d0 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -17,6 +17,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 #include <linux/types.h>
 
 enum {
@@ -709,6 +710,10 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 	if (IS_ERR(regmap_config))
 		return PTR_ERR(regmap_config);
 
+	ret = devm_regulator_get_enable(&i2c->dev, "vdd");
+	if (ret)
+		return ret;
+
 	adp5585->regmap = devm_regmap_init_i2c(i2c, regmap_config);
 	if (IS_ERR(adp5585->regmap))
 		return dev_err_probe(&i2c->dev, PTR_ERR(adp5585->regmap),

-- 
2.50.0

[PATCH v6 19/20] dt-bindings: mfd: adp5585: document reset gpio

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Add a reset gpio property. Note that for the adp5585-01 models, the
reset pin is used as the additional ROW5 which means there's no reset.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 Documentation/devicetree/bindings/mfd/adi,adp5585.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
index b3bf2ed586104303fd078bd06683e4f0d3383575..2d4ecee3f2547ad07a0ab8fcbe96f42f526d1619 100644
--- a/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
+++ b/Documentation/devicetree/bindings/mfd/adi,adp5585.yaml
@@ -39,6 +39,9 @@ properties:
 
   vdd-supply: true
 
+  reset-gpios:
+    maxItems: 1
+
   gpio-controller: true
 
   '#gpio-cells':
@@ -166,6 +169,7 @@ allOf:
         adi,unlock-events: false
         adi,unlock-trigger-sec: false
         gpio-reserved-ranges: false
+        reset-gpios: false
         adi,keypad-pins:
           minItems: 2
           maxItems: 11

-- 
2.50.0

[PATCH v6 20/20] mfd: adp5585: Add support for a reset pin

[Nuno Sá via B4 Relay]

From: Nuno Sá <nuno.sa@analog.com>

Make sure to perform an Hardware reset during probe  if the pin is given
in FW.

Signed-off-by: Nuno Sá <nuno.sa@analog.com>
---
 drivers/mfd/adp5585.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/mfd/adp5585.c b/drivers/mfd/adp5585.c
index 11a26f668653439378f9eb31d053c45772a940d0..58f7cebe2ea4f2c68f64370449f5fbce8a2f14ed 100644
--- a/drivers/mfd/adp5585.c
+++ b/drivers/mfd/adp5585.c
@@ -12,6 +12,7 @@
 #include <linux/device.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
+#include <linux/gpio/consumer.h>
 #include <linux/mfd/adp5585.h>
 #include <linux/mfd/core.h>
 #include <linux/mod_devicetable.h>
@@ -690,6 +691,7 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 {
 	struct regmap_config *regmap_config;
 	struct adp5585_dev *adp5585;
+	struct gpio_desc *gpio;
 	unsigned int id;
 	int ret;
 
@@ -714,6 +716,20 @@ static int adp5585_i2c_probe(struct i2c_client *i2c)
 	if (ret)
 		return ret;
 
+	gpio = devm_gpiod_get_optional(&i2c->dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpio))
+		return PTR_ERR(gpio);
+
+	/*
+	 * Note the timings are not documented anywhere in the datasheet. They are just
+	 * reasonable values that work.
+	 */
+	if (gpio) {
+		fsleep(30);
+		gpiod_set_value_cansleep(gpio, 0);
+		fsleep(60);
+	}
+
 	adp5585->regmap = devm_regmap_init_i2c(i2c, regmap_config);
 	if (IS_ERR(adp5585->regmap))
 		return dev_err_probe(&i2c->dev, PTR_ERR(adp5585->regmap),

-- 
2.50.0