[PATCH v3 1/2] input: keyboard: Add devicetree support for lm8333

[PATCH v3 1/2] input: keyboard: Add devicetree support for lm8333

[Gordan Markuš]

This adds LM8333 devicetree parsing for the keypad part. Optional
properties to specify the keypad driver active time and debounce time.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/input/keyboard/lm8333.c | 54 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index c717e8f..f1508c5 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -128,6 +128,51 @@ static irqreturn_t lm8333_irq_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static struct lm8333_platform_data *lm8333_parse_dt(struct i2c_client *client)
+{
+	struct device_node *np = client->dev.of_node;
+	struct lm8333_platform_data *pdata;
+	struct matrix_keymap_data *matrix_data;
+	u32 *keymap;
+	u32 prop;
+	int len;
+
+	pdata = devm_kzalloc(&client->dev, sizeof(pdata),
+				GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32(np, "ti,active-time-ms", &prop))
+		pdata->active_time = prop;
+
+	if (!of_property_read_u32(np, "debounce-delay-ms", &prop))
+		pdata->debounce_time = prop;
+	else
+		pdata->debounce_time = 10;
+
+	if (!of_get_property(np, "linux,keymap", &prop))
+		len = prop / sizeof(u32);
+	else {
+		dev_err(&client->dev, "no keymap data defined\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	keymap = devm_kzalloc(&client->dev, sizeof(len) * len, GFP_KERNEL);
+	matrix_data = devm_kzalloc(&client->dev, sizeof(matrix_data),
+					GFP_KERNEL);
+	if (!matrix_data || !keymap)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32_array(np, "linux,keymap", keymap, len)) {
+		matrix_data->keymap_size = len;
+		matrix_data->keymap = keymap;
+
+		pdata->matrix_data = matrix_data;
+	}
+
+	return pdata;
+}
+
 static int lm8333_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
@@ -137,6 +182,15 @@ static int lm8333_probe(struct i2c_client *client,
 	struct input_dev *input;
 	int err, active_time;
 
+	if (!pdata && client->dev.of_node) {
+		pdata = lm8333_parse_dt(client);
+		if (IS_ERR(pdata)) {
+			dev_err(&client->dev,
+				"could not parse configuration\n");
+			return IS_ERR(pdata);
+		}
+	}
+
 	if (!pdata)
 		return -EINVAL;
 
-- 
2.9.3

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[PATCH v3 2/2] input: keyboard: Add lm8333 devicetree bindings

[Gordan Markuš]

This adds LM8333 devicetree bindings documentation.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt b/Documentation/devicetree/bindings/input/ti,lm8333.txt
new file mode 100644
index 0000000..dda01e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
@@ -0,0 +1,45 @@
+LM8333 Keypad
+
+Required properties:
+- compatible: Compatible property value should be "ti,lm8333".
+
+- reg: Physical base address of the peripheral and length of memory mapped
+  region.
+
+- interrupts: The interrupt number for the peripheral.
+
+- linux,keymap: The keymap to use
+	(see Documentation/devicetree/bindings/input/matrix-keymap.txt)
+
+Optional properties:
+- ti,active-time-ms: Specify the time during which the keypad is scanned after
+	the last key is released, before entering Halt mode.
+	The active time must be longer than the debounce time.
+	Default 500 ms.
+
+- debounce-delay-ms: Specify the keypad debounce time.
+	This can be used for reliable scanning of keyboards with noisy contacts.
+	Default 10 ms.
+
+Example:
+input {
+	compatible = "ti,lm8333";
+	reg = <0x51>;
+	interrupts = <5>;
+
+	ti,active-time-ms = <750>;
+	debounce-delay-ms = <20>;
+
+	linux,keymap = <
+			0x0001001e
+			0x00020030
+			0x0003002e
+			0x00040020
+			0x00050012
+			0x00060021
+			0x00070022
+			0x00080023
+			0x01010017
+			0x01020024
+			0x01030025>;
+};
-- 
2.9.3

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Re: [PATCH v3 2/2] input: keyboard: Add lm8333 devicetree bindings

[Rob Herring]

On Thu, Jun 29, 2017 at 02:22:20PM +0200, Gordan Markuš wrote:
> This adds LM8333 devicetree bindings documentation.
> 
> Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt
> 
> diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt b/Documentation/devicetree/bindings/input/ti,lm8333.txt
> new file mode 100644
> index 0000000..dda01e2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
> @@ -0,0 +1,45 @@
> +LM8333 Keypad
> +
> +Required properties:
> +- compatible: Compatible property value should be "ti,lm8333".
> +
> +- reg: Physical base address of the peripheral and length of memory mapped
> +  region.

Isn't this I2C based?

With that fixed,

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
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[PATCH v4 1/2] input: keyboard: Add devicetree support for lm8333

[Gordan Markuš]

This adds LM8333 devicetree parsing for the keypad part. Optional
properties to specify the keypad driver active time and debounce time.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/input/keyboard/lm8333.c | 54 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index c717e8f..f1508c5 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -128,6 +128,51 @@ static irqreturn_t lm8333_irq_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static struct lm8333_platform_data *lm8333_parse_dt(struct i2c_client *client)
+{
+	struct device_node *np = client->dev.of_node;
+	struct lm8333_platform_data *pdata;
+	struct matrix_keymap_data *matrix_data;
+	u32 *keymap;
+	u32 prop;
+	int len;
+
+	pdata = devm_kzalloc(&client->dev, sizeof(pdata),
+				GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32(np, "ti,active-time-ms", &prop))
+		pdata->active_time = prop;
+
+	if (!of_property_read_u32(np, "debounce-delay-ms", &prop))
+		pdata->debounce_time = prop;
+	else
+		pdata->debounce_time = 10;
+
+	if (!of_get_property(np, "linux,keymap", &prop))
+		len = prop / sizeof(u32);
+	else {
+		dev_err(&client->dev, "no keymap data defined\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	keymap = devm_kzalloc(&client->dev, sizeof(len) * len, GFP_KERNEL);
+	matrix_data = devm_kzalloc(&client->dev, sizeof(matrix_data),
+					GFP_KERNEL);
+	if (!matrix_data || !keymap)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32_array(np, "linux,keymap", keymap, len)) {
+		matrix_data->keymap_size = len;
+		matrix_data->keymap = keymap;
+
+		pdata->matrix_data = matrix_data;
+	}
+
+	return pdata;
+}
+
 static int lm8333_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
@@ -137,6 +182,15 @@ static int lm8333_probe(struct i2c_client *client,
 	struct input_dev *input;
 	int err, active_time;
 
+	if (!pdata && client->dev.of_node) {
+		pdata = lm8333_parse_dt(client);
+		if (IS_ERR(pdata)) {
+			dev_err(&client->dev,
+				"could not parse configuration\n");
+			return IS_ERR(pdata);
+		}
+	}
+
 	if (!pdata)
 		return -EINVAL;
 
-- 
2.9.3

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[PATCH v4 2/2] input: keyboard: Add lm8333 devicetree bindings

[Gordan Markuš]

This adds LM8333 devicetree bindings documentation.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt b/Documentation/devicetree/bindings/input/ti,lm8333.txt
new file mode 100644
index 0000000..567f3ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
@@ -0,0 +1,45 @@
+LM8333 Keypad
+
+Required properties:
+- compatible: Compatible property value should be "ti,lm8333".
+
+- reg: The I2C address of the device.
+
+- interrupts: The interrupt number for the peripheral.
+
+- linux,keymap: The keymap to use 
+  (see Documentation/devicetree/bindings/input/matrix-keymap.txt).
+
+Optional properties:
+- ti,active-time-ms: Specify the time during which the keypad is scanned
+  after the last key is released, before entering Halt mode. The active
+  time must be longer than the debounce time.
+  Default 500 ms.
+
+- debounce-delay-ms: Specify the keypad debounce time.
+  This can be used for reliable scanning of keyboards with noisy 
+  contacts.
+  Default 10 ms.
+
+Example:
+input {
+	compatible = "ti,lm8333";
+	reg = <0x51>;
+	interrupts = <5>;
+
+	ti,active-time-ms = <750>;
+	debounce-delay-ms = <20>;
+
+	linux,keymap = <
+			0x0001001e
+			0x00020030
+			0x0003002e
+			0x00040020
+			0x00050012
+			0x00060021
+			0x00070022
+			0x00080023
+			0x01010017
+			0x01020024
+			0x01030025>;
+};
-- 
2.9.3

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Re: [PATCH v4 2/2] input: keyboard: Add lm8333 devicetree bindings

[Rob Herring]

On Fri, Jul 07, 2017 at 09:22:58AM +0200, Gordan Markuš wrote:
> This adds LM8333 devicetree bindings documentation.
> 
> Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

I acked v3. Please add acks when posting new versions.

Rob
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[PATCH v3 1/2] input: keyboard: Add devicetree support for lm8333

[Gordan Markuš]

This adds LM8333 devicetree parsing for the keypad part. Optional
properties to specify the keypad driver active time and debounce time.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/input/keyboard/lm8333.c | 54 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/drivers/input/keyboard/lm8333.c b/drivers/input/keyboard/lm8333.c
index c717e8f..f1508c5 100644
--- a/drivers/input/keyboard/lm8333.c
+++ b/drivers/input/keyboard/lm8333.c
@@ -128,6 +128,51 @@ static irqreturn_t lm8333_irq_thread(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static struct lm8333_platform_data *lm8333_parse_dt(struct i2c_client *client)
+{
+	struct device_node *np = client->dev.of_node;
+	struct lm8333_platform_data *pdata;
+	struct matrix_keymap_data *matrix_data;
+	u32 *keymap;
+	u32 prop;
+	int len;
+
+	pdata = devm_kzalloc(&client->dev, sizeof(pdata),
+				GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32(np, "ti,active-time-ms", &prop))
+		pdata->active_time = prop;
+
+	if (!of_property_read_u32(np, "debounce-delay-ms", &prop))
+		pdata->debounce_time = prop;
+	else
+		pdata->debounce_time = 10;
+
+	if (!of_get_property(np, "linux,keymap", &prop))
+		len = prop / sizeof(u32);
+	else {
+		dev_err(&client->dev, "no keymap data defined\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	keymap = devm_kzalloc(&client->dev, sizeof(len) * len, GFP_KERNEL);
+	matrix_data = devm_kzalloc(&client->dev, sizeof(matrix_data),
+					GFP_KERNEL);
+	if (!matrix_data || !keymap)
+		return ERR_PTR(-ENOMEM);
+
+	if (!of_property_read_u32_array(np, "linux,keymap", keymap, len)) {
+		matrix_data->keymap_size = len;
+		matrix_data->keymap = keymap;
+
+		pdata->matrix_data = matrix_data;
+	}
+
+	return pdata;
+}
+
 static int lm8333_probe(struct i2c_client *client,
 				  const struct i2c_device_id *id)
 {
@@ -137,6 +182,15 @@ static int lm8333_probe(struct i2c_client *client,
 	struct input_dev *input;
 	int err, active_time;
 
+	if (!pdata && client->dev.of_node) {
+		pdata = lm8333_parse_dt(client);
+		if (IS_ERR(pdata)) {
+			dev_err(&client->dev,
+				"could not parse configuration\n");
+			return IS_ERR(pdata);
+		}
+	}
+
 	if (!pdata)
 		return -EINVAL;
 
-- 
2.9.3

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[PATCH v3 2/2] input: keyboard: Add lm8333 devicetree bindings

[Gordan Markuš]

This adds LM8333 devicetree bindings documentation.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt b/Documentation/devicetree/bindings/input/ti,lm8333.txt
new file mode 100644
index 0000000..567f3ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
@@ -0,0 +1,45 @@
+LM8333 Keypad
+
+Required properties:
+- compatible: Compatible property value should be "ti,lm8333".
+
+- reg: The I2C address of the device.
+
+- interrupts: The interrupt number for the peripheral.
+
+- linux,keymap: The keymap to use 
+  (see Documentation/devicetree/bindings/input/matrix-keymap.txt).
+
+Optional properties:
+- ti,active-time-ms: Specify the time during which the keypad is scanned
+  after the last key is released, before entering Halt mode. The active
+  time must be longer than the debounce time.
+  Default 500 ms.
+
+- debounce-delay-ms: Specify the keypad debounce time.
+  This can be used for reliable scanning of keyboards with noisy 
+  contacts.
+  Default 10 ms.
+
+Example:
+input {
+	compatible = "ti,lm8333";
+	reg = <0x51>;
+	interrupts = <5>;
+
+	ti,active-time-ms = <750>;
+	debounce-delay-ms = <20>;
+
+	linux,keymap = <
+			0x0001001e
+			0x00020030
+			0x0003002e
+			0x00040020
+			0x00050012
+			0x00060021
+			0x00070022
+			0x00080023
+			0x01010017
+			0x01020024
+			0x01030025>;
+};
-- 
2.9.3

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Re: [PATCH v3 2/2] input: keyboard: Add lm8333 devicetree bindings

[Rob Herring]

On Thu, Jul 13, 2017 at 02:13:00PM +0200, Gordan Markuš wrote:
> This adds LM8333 devicetree bindings documentation.
> 
> Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

This is the 2nd v3 you posted and I acked v4...

Rob
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Re: [PATCH v3] 2/2] input: keyboard: Add lm8333 devicetree bindings

[Gordan Markuš]

These patches were acked-by Rob Herring last year, but they never
seem to have made it to patchwork. 

Reference: https://www.spinics.net/lists/devicetree/msg149997.html

On Thu, 2017-06-29 at 10:18 +0200, Gordan Markuš wrote:
> This adds LM8333 devicetree bindings documentation.
> 
> Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> ---
>  .../devicetree/bindings/input/ti,lm8333.txt        | 45
> ++++++++++++++++++++++
>  1 file changed, 45 insertions(+)
>  create mode 100644
> Documentation/devicetree/bindings/input/ti,lm8333.txt
> 
> diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt
> b/Documentation/devicetree/bindings/input/ti,lm8333.txt
> new file mode 100644
> index 0000000..dda01e2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
> @@ -0,0 +1,45 @@
> +LM8333 Keypad
> +
> +Required properties:
> +- compatible: Compatible property value should be "ti,lm8333".
> +
> +- reg: Physical base address of the peripheral and length of memory
> mapped
> +  region.
> +
> +- interrupts: The interrupt number for the peripheral.
> +
> +- linux,keymap: The keymap to use
> +	(see Documentation/devicetree/bindings/input/matrix-
> keymap.txt)
> +
> +Optional properties:
> +- ti,active-time-ms: Specify the time during which the keypad is
> scanned after
> +	the last key is released, before entering Halt mode.
> +	The active time must be longer than the debounce time.
> +	Default 500 ms.
> +
> +- debounce-delay-ms: Specify the keypad debounce time.
> +	This can be used for reliable scanning of keyboards with
> noisy contacts.
> +	Default 10 ms.
> +
> +Example:
> +input {
> +	compatible = "ti,lm8333";
> +	reg = <0x51>;
> +	interrupts = <5>;
> +
> +	ti,active-time-ms = <750>;
> +	debounce-delay-ms = <20>;
> +
> +	linux,keymap = <
> +			0x0001001e
> +			0x00020030
> +			0x0003002e
> +			0x00040020
> +			0x00050012
> +			0x00060021
> +			0x00070022
> +			0x00080023
> +			0x01010017
> +			0x01020024
> +			0x01030025>;
> +};
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[PATCH v3] 2/2] input: keyboard: Add lm8333 devicetree bindings

[Gordan Markuš]

This adds LM8333 devicetree bindings documentation.

Signed-off-by: Gordan Markuš <gordan.markus-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 .../devicetree/bindings/input/ti,lm8333.txt        | 45 ++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/ti,lm8333.txt

diff --git a/Documentation/devicetree/bindings/input/ti,lm8333.txt b/Documentation/devicetree/bindings/input/ti,lm8333.txt
new file mode 100644
index 0000000..dda01e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/ti,lm8333.txt
@@ -0,0 +1,45 @@
+LM8333 Keypad
+
+Required properties:
+- compatible: Compatible property value should be "ti,lm8333".
+
+- reg: Physical base address of the peripheral and length of memory mapped
+  region.
+
+- interrupts: The interrupt number for the peripheral.
+
+- linux,keymap: The keymap to use
+	(see Documentation/devicetree/bindings/input/matrix-keymap.txt)
+
+Optional properties:
+- ti,active-time-ms: Specify the time during which the keypad is scanned after
+	the last key is released, before entering Halt mode.
+	The active time must be longer than the debounce time.
+	Default 500 ms.
+
+- debounce-delay-ms: Specify the keypad debounce time.
+	This can be used for reliable scanning of keyboards with noisy contacts.
+	Default 10 ms.
+
+Example:
+input {
+	compatible = "ti,lm8333";
+	reg = <0x51>;
+	interrupts = <5>;
+
+	ti,active-time-ms = <750>;
+	debounce-delay-ms = <20>;
+
+	linux,keymap = <
+			0x0001001e
+			0x00020030
+			0x0003002e
+			0x00040020
+			0x00050012
+			0x00060021
+			0x00070022
+			0x00080023
+			0x01010017
+			0x01020024
+			0x01030025>;
+};
-- 
2.9.3

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