Sync up with mainline.
Optional properties:
- timeout-sec: contains the watchdog timeout in seconds.
+SCU key bindings based on SCU Message Protocol
+------------------------------------------------------------
+
+Required properties:
+- compatible: should be:
+ "fsl,imx8qxp-sc-key"
+ followed by "fsl,imx-sc-key";
+- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
+
Example (imx8qxp):
-------------
aliases {
compatible = "fsl,imx8qxp-sc-rtc";
};
+ scu_key: scu-key {
+ compatible = "fsl,imx8qxp-sc-key", "fsl,imx-sc-key";
+ linux,keycodes = <KEY_POWER>;
+ };
+
watchdog {
compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
timeout-sec = <60>;
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/fsl,mpr121-touchkey.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale MPR121 capacitive touch sensor controller
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+description: |
+ The MPR121 supports up to 12 completely independent electrodes/capacitance
+ sensing inputs in which 8 are multifunctional for LED driving and GPIO.
+ https://www.nxp.com/docs/en/data-sheet/MPR121.pdf
+
+allOf:
+ - $ref: input.yaml#
+
+anyOf:
+ - required: [ interrupts ]
+ - required: [ poll-interval ]
+
+properties:
+ compatible:
+ const: fsl,mpr121-touchkey
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vdd-supply:
+ maxItems: 1
+
+ linux,keycodes:
+ minItems: 1
+ maxItems: 12
+
+ wakeup-source:
+ description: Use any event on keypad as wakeup event.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - vdd-supply
+ - linux,keycodes
+
+examples:
+ - |
+ // Example with interrupts
+ #include "dt-bindings/input/input.h"
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mpr121@5a {
+ compatible = "fsl,mpr121-touchkey";
+ reg = <0x5a>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <28 2>;
+ autorepeat;
+ vdd-supply = <&ldo4_reg>;
+ linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>,
+ <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>,
+ <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>;
+ };
+ };
+
+ - |
+ // Example with polling
+ #include "dt-bindings/input/input.h"
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mpr121@5a {
+ compatible = "fsl,mpr121-touchkey";
+ reg = <0x5a>;
+ poll-interval = <20>;
+ autorepeat;
+ vdd-supply = <&ldo4_reg>;
+ linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>,
+ <KEY_4>, <KEY_5>, <KEY_6>, <KEY_7>,
+ <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>;
+ };
+ };
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/input.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common input schema binding
+
+maintainers:
+ - Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+properties:
+ autorepeat:
+ description: Enable autorepeat when key is pressed and held down.
+ type: boolean
+
+ linux,keycodes:
+ description:
+ Specifies an array of numeric keycode values to be used for reporting
+ button presses.
+ allOf:
+ - $ref: /schemas/types.yaml#/definitions/uint32-array
+ - items:
+ minimum: 0
+ maximum: 0xff
+
+ poll-interval:
+ description: Poll interval time in milliseconds.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ power-off-time-sec:
+ description:
+ Duration in seconds which the key should be kept pressed for device to
+ power off automatically. Device with key pressed shutdown feature can
+ specify this property.
+ $ref: /schemas/types.yaml#/definitions/uint32
+++ /dev/null
-General Keys Properties:
-
-Optional properties for Keys:
-- power-off-time-sec: Duration in seconds which the key should be kept
- pressed for device to power off automatically. Device with key pressed
- shutdown feature can specify this property.
-- linux,keycodes: Specifies the numeric keycode values to be used for
- reporting key presses.
+++ /dev/null
-* Freescale MPR121 Controllor
-
-Required Properties:
-- compatible: Should be "fsl,mpr121-touchkey"
-- reg: The I2C slave address of the device.
-- interrupts: The interrupt number to the cpu.
-- vdd-supply: Phandle to the Vdd power supply.
-- linux,keycodes: Specifies an array of numeric keycode values to
- be used for reporting button presses. The array can
- contain up to 12 entries.
-
-Optional Properties:
-- wakeup-source: Use any event on keypad as wakeup event.
-- autorepeat: Enable autorepeat feature.
-
-Example:
-
-#include "dt-bindings/input/input.h"
-
- touchkey: mpr121@5a {
- compatible = "fsl,mpr121-touchkey";
- reg = <0x5a>;
- interrupt-parent = <&gpio1>;
- interrupts = <28 2>;
- autorepeat;
- vdd-supply = <&ldo4_reg>;
- linux,keycodes = <KEY_0>, <KEY_1>, <KEY_2>, <KEY_3>,
- <KEY_4> <KEY_5>, <KEY_6>, <KEY_7>,
- <KEY_8>, <KEY_9>, <KEY_A>, <KEY_B>;
- };
Required properties:
- compatible: "mediatek,mt6397-keys" or "mediatek,mt6323-keys"
-- linux,keycodes: See Documentation/devicetree/bindings/input/keys.txt
+- linux,keycodes: See Documentation/devicetree/bindings/input/input.yaml
Optional Properties:
- wakeup-source: See Documentation/devicetree/bindings/power/wakeup-source.txt
- mediatek,long-press-mode: Long press key shutdown setting, 1 for
pwrkey only, 2 for pwrkey/homekey together, others for disabled.
-- power-off-time-sec: See Documentation/devicetree/bindings/input/keys.txt
+- power-off-time-sec: See Documentation/devicetree/bindings/input/input.yaml
Example:
- st,onkey-pu-inactive: onkey pull up is not active
- power-off-time-sec: Duration in seconds which the key should be kept
pressed for device to power off automatically (from 1 to 16 seconds).
- see See Documentation/devicetree/bindings/input/keys.txt
+ see See Documentation/devicetree/bindings/input/input.yaml
Example:
}
EXPORT_SYMBOL(input_set_max_poll_interval);
+int input_get_poll_interval(struct input_dev *dev)
+{
+ if (!dev->poller)
+ return -EINVAL;
+
+ return dev->poller->poll_interval;
+}
+EXPORT_SYMBOL(input_get_poll_interval);
+
/* SYSFS interface */
static ssize_t input_dev_get_poll_interval(struct device *dev,
To compile this driver as a module, choose M here: the
module will be called imx_keypad.
+config KEYBOARD_IMX_SC_KEY
+ tristate "IMX SCU Key Driver"
+ depends on IMX_SCU
+ help
+ This is the system controller key driver for NXP i.MX SoCs with
+ system controller inside.
+
+ To compile this driver as a module, choose M here: the
+ module will be called imx_sc_key.
+
config KEYBOARD_NEWTON
tristate "Newton keyboard"
select SERIO
obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o
obj-$(CONFIG_KEYBOARD_IPAQ_MICRO) += ipaq-micro-keys.o
obj-$(CONFIG_KEYBOARD_IMX) += imx_keypad.o
+obj-$(CONFIG_KEYBOARD_IMX_SC_KEY) += imx_sc_key.o
obj-$(CONFIG_KEYBOARD_HP6XX) += jornada680_kbd.o
obj-$(CONFIG_KEYBOARD_HP7XX) += jornada720_kbd.o
obj-$(CONFIG_KEYBOARD_LKKBD) += lkkbd.o
input_sync(kpad->input);
}
-static int adp5589_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static int adp5589_keypad_add(struct adp5589_kpad *kpad, unsigned int revid)
{
- struct adp5589_kpad *kpad;
+ struct i2c_client *client = kpad->client;
const struct adp5589_kpad_platform_data *pdata =
dev_get_platdata(&client->dev);
struct input_dev *input;
- unsigned int revid;
- int ret, i;
+ unsigned int i;
int error;
- 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 = kzalloc(sizeof(*kpad), GFP_KERNEL);
- if (!kpad)
- return -ENOMEM;
-
- switch (id->driver_data) {
- case ADP5585_02:
- kpad->support_row5 = true;
- /* fall through */
- case ADP5585_01:
- kpad->is_adp5585 = true;
- kpad->var = &const_adp5585;
- break;
- case ADP5589:
- kpad->support_row5 = true;
- kpad->var = &const_adp5589;
- break;
- }
-
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");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
if (pdata->keymapsize != kpad->var->keymapsize) {
dev_err(&client->dev, "invalid keymapsize\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
if (!pdata->gpimap && pdata->gpimapsize) {
dev_err(&client->dev, "invalid gpimap from pdata\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
if (pdata->gpimapsize > kpad->var->gpimapsize_max) {
dev_err(&client->dev, "invalid gpimapsize\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
for (i = 0; i < pdata->gpimapsize; i++) {
if (pin < kpad->var->gpi_pin_base ||
pin > kpad->var->gpi_pin_end) {
dev_err(&client->dev, "invalid gpi pin data\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
if ((1 << (pin - kpad->var->gpi_pin_row_base)) &
pdata->keypad_en_mask) {
dev_err(&client->dev, "invalid gpi row/col data\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
}
if (!client->irq) {
dev_err(&client->dev, "no IRQ?\n");
- error = -EINVAL;
- goto err_free_mem;
+ return -EINVAL;
}
input = input_allocate_device();
- if (!input) {
- error = -ENOMEM;
- goto err_free_mem;
- }
+ if (!input)
+ return -ENOMEM;
- kpad->client = client;
kpad->input = input;
- ret = adp5589_read(client, ADP5589_5_ID);
- if (ret < 0) {
- error = ret;
- goto err_free_input;
- }
-
- revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
-
input->name = client->name;
input->phys = "adp5589-keys/input0";
input->dev.parent = &client->dev;
goto err_unreg_dev;
}
+ device_init_wakeup(&client->dev, 1);
+
+ return 0;
+
+err_unreg_dev:
+ input_unregister_device(input);
+ input = NULL;
+err_free_input:
+ input_free_device(input);
+
+ return error;
+}
+
+static void adp5589_keypad_remove(struct adp5589_kpad *kpad)
+{
+ if (kpad->input) {
+ free_irq(kpad->client->irq, kpad);
+ input_unregister_device(kpad->input);
+ }
+}
+
+static int adp5589_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ 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 = kzalloc(sizeof(*kpad), GFP_KERNEL);
+ if (!kpad)
+ return -ENOMEM;
+
+ kpad->client = client;
+
+ switch (id->driver_data) {
+ case ADP5585_02:
+ kpad->support_row5 = true;
+ /* fall through */
+ case ADP5585_01:
+ kpad->is_adp5585 = true;
+ kpad->var = &const_adp5585;
+ break;
+ case ADP5589:
+ kpad->support_row5 = true;
+ kpad->var = &const_adp5589;
+ break;
+ }
+
+ ret = adp5589_read(client, ADP5589_5_ID);
+ if (ret < 0) {
+ error = ret;
+ goto err_free_mem;
+ }
+
+ revid = (u8) ret & ADP5589_5_DEVICE_ID_MASK;
+
+ if (pdata->keymapsize) {
+ error = adp5589_keypad_add(kpad, revid);
+ if (error)
+ goto err_free_mem;
+ }
+
error = adp5589_setup(kpad);
if (error)
- goto err_free_irq;
+ goto err_keypad_remove;
if (kpad->gpimapsize)
adp5589_report_switch_state(kpad);
error = adp5589_gpio_add(kpad);
if (error)
- goto err_free_irq;
+ goto err_keypad_remove;
- device_init_wakeup(&client->dev, 1);
i2c_set_clientdata(client, kpad);
dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq);
return 0;
-err_free_irq:
- free_irq(client->irq, kpad);
-err_unreg_dev:
- input_unregister_device(input);
- input = NULL;
-err_free_input:
- input_free_device(input);
+err_keypad_remove:
+ adp5589_keypad_remove(kpad);
err_free_mem:
kfree(kpad);
struct adp5589_kpad *kpad = i2c_get_clientdata(client);
adp5589_write(client, kpad->var->reg(ADP5589_GENERAL_CFG), 0);
- free_irq(client->irq, kpad);
- input_unregister_device(kpad->input);
+ adp5589_keypad_remove(kpad);
adp5589_gpio_remove(kpad);
kfree(kpad);
struct adp5589_kpad *kpad = dev_get_drvdata(dev);
struct i2c_client *client = kpad->client;
+ if (!kpad->input)
+ return 0;
+
disable_irq(client->irq);
if (device_may_wakeup(&client->dev))
struct adp5589_kpad *kpad = dev_get_drvdata(dev);
struct i2c_client *client = kpad->client;
+ if (!kpad->input)
+ return 0;
+
if (device_may_wakeup(&client->dev))
disable_irq_wake(client->irq);
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 NXP.
+ */
+
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/firmware/imx/sci.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#define DEBOUNCE_TIME 30
+#define REPEAT_INTERVAL 60
+
+#define SC_IRQ_BUTTON 1
+#define SC_IRQ_GROUP_WAKE 3
+
+#define IMX_SC_MISC_FUNC_GET_BUTTON_STATUS 18
+
+struct imx_key_drv_data {
+ u32 keycode;
+ bool keystate; /* true: pressed, false: released */
+ struct delayed_work check_work;
+ struct input_dev *input;
+ struct imx_sc_ipc *key_ipc_handle;
+ struct notifier_block key_notifier;
+};
+
+struct imx_sc_msg_key {
+ struct imx_sc_rpc_msg hdr;
+ u8 state;
+};
+
+static int imx_sc_key_notify(struct notifier_block *nb,
+ unsigned long event, void *group)
+{
+ struct imx_key_drv_data *priv =
+ container_of(nb,
+ struct imx_key_drv_data,
+ key_notifier);
+
+ if ((event & SC_IRQ_BUTTON) && (*(u8 *)group == SC_IRQ_GROUP_WAKE)) {
+ schedule_delayed_work(&priv->check_work,
+ msecs_to_jiffies(DEBOUNCE_TIME));
+ pm_wakeup_event(priv->input->dev.parent, 0);
+ }
+
+ return 0;
+}
+
+static void imx_sc_check_for_events(struct work_struct *work)
+{
+ struct imx_key_drv_data *priv =
+ container_of(work,
+ struct imx_key_drv_data,
+ check_work.work);
+ struct input_dev *input = priv->input;
+ struct imx_sc_msg_key msg;
+ struct imx_sc_rpc_msg *hdr = &msg.hdr;
+ bool state;
+ int error;
+
+ hdr->ver = IMX_SC_RPC_VERSION;
+ hdr->svc = IMX_SC_RPC_SVC_MISC;
+ hdr->func = IMX_SC_MISC_FUNC_GET_BUTTON_STATUS;
+ hdr->size = 1;
+
+ error = imx_scu_call_rpc(priv->key_ipc_handle, &msg, true);
+ if (error) {
+ dev_err(&input->dev, "read imx sc key failed, error %d\n", error);
+ return;
+ }
+
+ state = (bool)msg.state;
+
+ if (state ^ priv->keystate) {
+ priv->keystate = state;
+ input_event(input, EV_KEY, priv->keycode, state);
+ input_sync(input);
+ if (!priv->keystate)
+ pm_relax(priv->input->dev.parent);
+ }
+
+ if (state)
+ schedule_delayed_work(&priv->check_work,
+ msecs_to_jiffies(REPEAT_INTERVAL));
+}
+
+static int imx_sc_key_probe(struct platform_device *pdev)
+{
+ struct imx_key_drv_data *priv;
+ struct input_dev *input;
+ int error;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ error = imx_scu_get_handle(&priv->key_ipc_handle);
+ if (error)
+ return error;
+
+ if (device_property_read_u32(&pdev->dev, "linux,keycodes",
+ &priv->keycode)) {
+ dev_err(&pdev->dev, "missing linux,keycodes property\n");
+ return -EINVAL;
+ }
+
+ INIT_DELAYED_WORK(&priv->check_work, imx_sc_check_for_events);
+
+ input = devm_input_allocate_device(&pdev->dev);
+ if (!input) {
+ dev_err(&pdev->dev, "failed to allocate the input device\n");
+ return -ENOMEM;
+ }
+
+ input->name = pdev->name;
+ input->phys = "imx-sc-key/input0";
+ input->id.bustype = BUS_HOST;
+
+ input_set_capability(input, EV_KEY, priv->keycode);
+
+ error = input_register_device(input);
+ if (error) {
+ dev_err(&pdev->dev, "failed to register input device\n");
+ return error;
+ }
+
+ priv->input = input;
+ platform_set_drvdata(pdev, priv);
+
+ error = imx_scu_irq_group_enable(SC_IRQ_GROUP_WAKE, SC_IRQ_BUTTON,
+ true);
+ if (error) {
+ dev_err(&pdev->dev, "failed to enable scu group irq\n");
+ return error;
+ }
+
+ priv->key_notifier.notifier_call = imx_sc_key_notify;
+ error = imx_scu_irq_register_notifier(&priv->key_notifier);
+ if (error) {
+ imx_scu_irq_group_enable(SC_IRQ_GROUP_WAKE, SC_IRQ_BUTTON,
+ false);
+ dev_err(&pdev->dev, "failed to register scu notifier\n");
+ return error;
+ }
+
+ return 0;
+}
+
+static int imx_sc_key_remove(struct platform_device *pdev)
+{
+ struct imx_key_drv_data *priv = platform_get_drvdata(pdev);
+
+ imx_scu_irq_group_enable(SC_IRQ_GROUP_WAKE, SC_IRQ_BUTTON, false);
+ imx_scu_irq_unregister_notifier(&priv->key_notifier);
+ cancel_delayed_work_sync(&priv->check_work);
+
+ return 0;
+}
+
+static const struct of_device_id imx_sc_key_ids[] = {
+ { .compatible = "fsl,imx-sc-key" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_sc_key_ids);
+
+static struct platform_driver imx_sc_key_driver = {
+ .driver = {
+ .name = "imx-sc-key",
+ .of_match_table = imx_sc_key_ids,
+ },
+ .probe = imx_sc_key_probe,
+ .remove = imx_sc_key_remove,
+};
+module_platform_driver(imx_sc_key_driver);
+
+MODULE_AUTHOR("Anson Huang <Anson.Huang@nxp.com>");
+MODULE_DESCRIPTION("i.MX System Controller Key Driver");
+MODULE_LICENSE("GPL v2");
/* MPR121 has 12 keys */
#define MPR121_MAX_KEY_COUNT 12
+#define MPR121_MIN_POLL_INTERVAL 10
+#define MPR121_MAX_POLL_INTERVAL 200
+
struct mpr121_touchkey {
struct i2c_client *client;
struct input_dev *input_dev;
return vdd_supply;
}
-static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id)
+static void mpr_touchkey_report(struct input_dev *dev)
{
- struct mpr121_touchkey *mpr121 = dev_id;
- struct i2c_client *client = mpr121->client;
+ struct mpr121_touchkey *mpr121 = input_get_drvdata(dev);
struct input_dev *input = mpr121->input_dev;
+ struct i2c_client *client = mpr121->client;
unsigned long bit_changed;
unsigned int key_num;
int reg;
reg = i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_1_ADDR);
if (reg < 0) {
dev_err(&client->dev, "i2c read error [%d]\n", reg);
- goto out;
+ return;
}
reg <<= 8;
reg |= i2c_smbus_read_byte_data(client, ELE_TOUCH_STATUS_0_ADDR);
if (reg < 0) {
dev_err(&client->dev, "i2c read error [%d]\n", reg);
- goto out;
+ return;
}
reg &= TOUCH_STATUS_MASK;
}
input_sync(input);
+}
+
+static irqreturn_t mpr_touchkey_interrupt(int irq, void *dev_id)
+{
+ struct mpr121_touchkey *mpr121 = dev_id;
+
+ mpr_touchkey_report(mpr121->input_dev);
-out:
return IRQ_HANDLED;
}
int vdd_uv;
struct mpr121_touchkey *mpr121;
struct input_dev *input_dev;
+ u32 poll_interval = 0;
int error;
int i;
- if (!client->irq) {
- dev_err(dev, "irq number should not be zero\n");
- return -EINVAL;
- }
-
vdd_supply = mpr121_vdd_supply_init(dev);
if (IS_ERR(vdd_supply))
return PTR_ERR(vdd_supply);
if (device_property_read_bool(dev, "autorepeat"))
__set_bit(EV_REP, input_dev->evbit);
input_set_capability(input_dev, EV_MSC, MSC_SCAN);
+ input_set_drvdata(input_dev, mpr121);
input_dev->keycode = mpr121->keycodes;
input_dev->keycodesize = sizeof(mpr121->keycodes[0]);
return error;
}
- error = devm_request_threaded_irq(dev, client->irq, NULL,
- mpr_touchkey_interrupt,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- dev->driver->name, mpr121);
- if (error) {
- dev_err(dev, "Failed to register interrupt\n");
- return error;
+ device_property_read_u32(dev, "poll-interval", &poll_interval);
+
+ if (client->irq) {
+ error = devm_request_threaded_irq(dev, client->irq, NULL,
+ mpr_touchkey_interrupt,
+ IRQF_TRIGGER_FALLING |
+ IRQF_ONESHOT,
+ dev->driver->name, mpr121);
+ if (error) {
+ dev_err(dev, "Failed to register interrupt\n");
+ return error;
+ }
+ } else if (poll_interval) {
+ if (poll_interval < MPR121_MIN_POLL_INTERVAL)
+ return -EINVAL;
+
+ if (poll_interval > MPR121_MAX_POLL_INTERVAL)
+ return -EINVAL;
+
+ error = input_setup_polling(input_dev, mpr_touchkey_report);
+ if (error) {
+ dev_err(dev, "Failed to setup polling\n");
+ return error;
+ }
+
+ input_set_poll_interval(input_dev, poll_interval);
+ input_set_min_poll_interval(input_dev,
+ MPR121_MIN_POLL_INTERVAL);
+ input_set_max_poll_interval(input_dev,
+ MPR121_MAX_POLL_INTERVAL);
+ } else {
+ dev_err(dev,
+ "invalid IRQ number and polling not configured\n");
+ return -EINVAL;
}
error = input_register_device(input_dev);
#define RTC_VERSION "1.10d"
-static DEFINE_MUTEX(hp_sdc_rtc_mutex);
static unsigned long epoch = 2000;
static struct semaphore i8042tregs;
-static hp_sdc_irqhook hp_sdc_rtc_isr;
-
-static struct fasync_struct *hp_sdc_rtc_async_queue;
-
-static DECLARE_WAIT_QUEUE_HEAD(hp_sdc_rtc_wait);
-
-static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos);
-
-static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg);
-
-static unsigned int hp_sdc_rtc_poll(struct file *file, poll_table *wait);
-
-static int hp_sdc_rtc_open(struct inode *inode, struct file *file);
-static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on);
-
static void hp_sdc_rtc_isr (int irq, void *dev_id,
uint8_t status, uint8_t data)
{
return 0;
}
-
-#if 0 /* not used yet */
-/* Set the i8042 real-time clock */
-static int hp_sdc_rtc_set_rt (struct timeval *setto)
-{
- uint32_t tenms;
- unsigned int days;
- hp_sdc_transaction t;
- uint8_t tseq[11] = {
- HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
- HP_SDC_CMD_SET_RTMS, 3, 0, 0, 0,
- HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
- HP_SDC_CMD_SET_RTD, 2, 0, 0
- };
-
- t.endidx = 10;
-
- if (0xffff < setto->tv_sec / 86400) return -1;
- days = setto->tv_sec / 86400;
- if (0xffff < setto->tv_usec / 1000000 / 86400) return -1;
- days += ((setto->tv_sec % 86400) + setto->tv_usec / 1000000) / 86400;
- if (days > 0xffff) return -1;
-
- if (0xffffff < setto->tv_sec) return -1;
- tenms = setto->tv_sec * 100;
- if (0xffffff < setto->tv_usec / 10000) return -1;
- tenms += setto->tv_usec / 10000;
- if (tenms > 0xffffff) return -1;
-
- tseq[3] = (uint8_t)(tenms & 0xff);
- tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
- tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
-
- tseq[9] = (uint8_t)(days & 0xff);
- tseq[10] = (uint8_t)((days >> 8) & 0xff);
-
- t.seq = tseq;
-
- if (hp_sdc_enqueue_transaction(&t)) return -1;
- return 0;
-}
-
-/* Set the i8042 fast handshake timer */
-static int hp_sdc_rtc_set_fhs (struct timeval *setto)
-{
- uint32_t tenms;
- hp_sdc_transaction t;
- uint8_t tseq[5] = {
- HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
- HP_SDC_CMD_SET_FHS, 2, 0, 0
- };
-
- t.endidx = 4;
-
- if (0xffff < setto->tv_sec) return -1;
- tenms = setto->tv_sec * 100;
- if (0xffff < setto->tv_usec / 10000) return -1;
- tenms += setto->tv_usec / 10000;
- if (tenms > 0xffff) return -1;
-
- tseq[3] = (uint8_t)(tenms & 0xff);
- tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
-
- t.seq = tseq;
-
- if (hp_sdc_enqueue_transaction(&t)) return -1;
- return 0;
-}
-
-
-/* Set the i8042 match timer (a.k.a. alarm) */
-#define hp_sdc_rtc_set_mt (setto) \
- hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_MT)
-
-/* Set the i8042 delay timer */
-#define hp_sdc_rtc_set_dt (setto) \
- hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_DT)
-
-/* Set the i8042 cycle timer (a.k.a. periodic) */
-#define hp_sdc_rtc_set_ct (setto) \
- hp_sdc_rtc_set_i8042timer(setto, HP_SDC_CMD_SET_CT)
-
-/* Set one of the i8042 3-byte wide timers */
-static int hp_sdc_rtc_set_i8042timer (struct timeval *setto, uint8_t setcmd)
-{
- uint32_t tenms;
- hp_sdc_transaction t;
- uint8_t tseq[6] = {
- HP_SDC_ACT_PRECMD | HP_SDC_ACT_DATAOUT,
- 0, 3, 0, 0, 0
- };
-
- t.endidx = 6;
-
- if (0xffffff < setto->tv_sec) return -1;
- tenms = setto->tv_sec * 100;
- if (0xffffff < setto->tv_usec / 10000) return -1;
- tenms += setto->tv_usec / 10000;
- if (tenms > 0xffffff) return -1;
-
- tseq[1] = setcmd;
- tseq[3] = (uint8_t)(tenms & 0xff);
- tseq[4] = (uint8_t)((tenms >> 8) & 0xff);
- tseq[5] = (uint8_t)((tenms >> 16) & 0xff);
-
- t.seq = tseq;
-
- if (hp_sdc_enqueue_transaction(&t)) {
- return -1;
- }
- return 0;
-}
-#endif
-
-static ssize_t hp_sdc_rtc_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos) {
- ssize_t retval;
-
- if (count < sizeof(unsigned long))
- return -EINVAL;
-
- retval = put_user(68, (unsigned long __user *)buf);
- return retval;
-}
-
-static __poll_t hp_sdc_rtc_poll(struct file *file, poll_table *wait)
-{
- unsigned long l;
-
- l = 0;
- if (l != 0)
- return EPOLLIN | EPOLLRDNORM;
- return 0;
-}
-
-static int hp_sdc_rtc_open(struct inode *inode, struct file *file)
-{
- return 0;
-}
-
-static int hp_sdc_rtc_fasync (int fd, struct file *filp, int on)
-{
- return fasync_helper (fd, filp, on, &hp_sdc_rtc_async_queue);
-}
-
static int hp_sdc_rtc_proc_show(struct seq_file *m, void *v)
{
#define YN(bit) ("no")
#undef NY
}
-static int hp_sdc_rtc_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
-#if 1
- return -EINVAL;
-#else
-
- struct rtc_time wtime;
- struct timeval ttime;
- int use_wtime = 0;
-
- /* This needs major work. */
-
- switch (cmd) {
-
- case RTC_AIE_OFF: /* Mask alarm int. enab. bit */
- case RTC_AIE_ON: /* Allow alarm interrupts. */
- case RTC_PIE_OFF: /* Mask periodic int. enab. bit */
- case RTC_PIE_ON: /* Allow periodic ints */
- case RTC_UIE_ON: /* Allow ints for RTC updates. */
- case RTC_UIE_OFF: /* Allow ints for RTC updates. */
- {
- /* We cannot mask individual user timers and we
- cannot tell them apart when they occur, so it
- would be disingenuous to succeed these IOCTLs */
- return -EINVAL;
- }
- case RTC_ALM_READ: /* Read the present alarm time */
- {
- if (hp_sdc_rtc_read_mt(&ttime)) return -EFAULT;
- if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
-
- wtime.tm_hour = ttime.tv_sec / 3600; ttime.tv_sec %= 3600;
- wtime.tm_min = ttime.tv_sec / 60; ttime.tv_sec %= 60;
- wtime.tm_sec = ttime.tv_sec;
-
- break;
- }
- case RTC_IRQP_READ: /* Read the periodic IRQ rate. */
- {
- return put_user(hp_sdc_rtc_freq, (unsigned long *)arg);
- }
- case RTC_IRQP_SET: /* Set periodic IRQ rate. */
- {
- /*
- * The max we can do is 100Hz.
- */
-
- if ((arg < 1) || (arg > 100)) return -EINVAL;
- ttime.tv_sec = 0;
- ttime.tv_usec = 1000000 / arg;
- if (hp_sdc_rtc_set_ct(&ttime)) return -EFAULT;
- hp_sdc_rtc_freq = arg;
- return 0;
- }
- case RTC_ALM_SET: /* Store a time into the alarm */
- {
- /*
- * This expects a struct hp_sdc_rtc_time. Writing 0xff means
- * "don't care" or "match all" for PC timers. The HP SDC
- * does not support that perk, but it could be emulated fairly
- * easily. Only the tm_hour, tm_min and tm_sec are used.
- * We could do it with 10ms accuracy with the HP SDC, if the
- * rtc interface left us a way to do that.
- */
- struct hp_sdc_rtc_time alm_tm;
-
- if (copy_from_user(&alm_tm, (struct hp_sdc_rtc_time*)arg,
- sizeof(struct hp_sdc_rtc_time)))
- return -EFAULT;
-
- if (alm_tm.tm_hour > 23) return -EINVAL;
- if (alm_tm.tm_min > 59) return -EINVAL;
- if (alm_tm.tm_sec > 59) return -EINVAL;
-
- ttime.sec = alm_tm.tm_hour * 3600 +
- alm_tm.tm_min * 60 + alm_tm.tm_sec;
- ttime.usec = 0;
- if (hp_sdc_rtc_set_mt(&ttime)) return -EFAULT;
- return 0;
- }
- case RTC_RD_TIME: /* Read the time/date from RTC */
- {
- if (hp_sdc_rtc_read_bbrtc(&wtime)) return -EFAULT;
- break;
- }
- case RTC_SET_TIME: /* Set the RTC */
- {
- struct rtc_time hp_sdc_rtc_tm;
- unsigned char mon, day, hrs, min, sec, leap_yr;
- unsigned int yrs;
-
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
- if (copy_from_user(&hp_sdc_rtc_tm, (struct rtc_time *)arg,
- sizeof(struct rtc_time)))
- return -EFAULT;
-
- yrs = hp_sdc_rtc_tm.tm_year + 1900;
- mon = hp_sdc_rtc_tm.tm_mon + 1; /* tm_mon starts at zero */
- day = hp_sdc_rtc_tm.tm_mday;
- hrs = hp_sdc_rtc_tm.tm_hour;
- min = hp_sdc_rtc_tm.tm_min;
- sec = hp_sdc_rtc_tm.tm_sec;
-
- if (yrs < 1970)
- return -EINVAL;
-
- leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
- if ((mon > 12) || (day == 0))
- return -EINVAL;
- if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
- return -EINVAL;
- if ((hrs >= 24) || (min >= 60) || (sec >= 60))
- return -EINVAL;
-
- if ((yrs -= eH) > 255) /* They are unsigned */
- return -EINVAL;
-
-
- return 0;
- }
- case RTC_EPOCH_READ: /* Read the epoch. */
- {
- return put_user (epoch, (unsigned long *)arg);
- }
- case RTC_EPOCH_SET: /* Set the epoch. */
- {
- /*
- * There were no RTC clocks before 1900.
- */
- if (arg < 1900)
- return -EINVAL;
- if (!capable(CAP_SYS_TIME))
- return -EACCES;
-
- epoch = arg;
- return 0;
- }
- default:
- return -EINVAL;
- }
- return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-#endif
-}
-
-static long hp_sdc_rtc_unlocked_ioctl(struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- int ret;
-
- mutex_lock(&hp_sdc_rtc_mutex);
- ret = hp_sdc_rtc_ioctl(file, cmd, arg);
- mutex_unlock(&hp_sdc_rtc_mutex);
-
- return ret;
-}
-
-
-static const struct file_operations hp_sdc_rtc_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = hp_sdc_rtc_read,
- .poll = hp_sdc_rtc_poll,
- .unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl,
- .open = hp_sdc_rtc_open,
- .fasync = hp_sdc_rtc_fasync,
-};
-
-static struct miscdevice hp_sdc_rtc_dev = {
- .minor = RTC_MINOR,
- .name = "rtc_HIL",
- .fops = &hp_sdc_rtc_fops
-};
-
static int __init hp_sdc_rtc_init(void)
{
int ret;
if ((ret = hp_sdc_request_timer_irq(&hp_sdc_rtc_isr)))
return ret;
- if (misc_register(&hp_sdc_rtc_dev) != 0)
- printk(KERN_INFO "Could not register misc. dev for i8042 rtc\n");
proc_create_single("driver/rtc", 0, NULL, hp_sdc_rtc_proc_show);
static void __exit hp_sdc_rtc_exit(void)
{
remove_proc_entry ("driver/rtc", NULL);
- misc_deregister(&hp_sdc_rtc_dev);
hp_sdc_release_timer_irq(hp_sdc_rtc_isr);
printk(KERN_INFO "HP i8042 SDC + MSM-58321 RTC support unloaded\n");
}
config MOUSE_GPIO
tristate "GPIO mouse"
depends on GPIOLIB || COMPILE_TEST
- select INPUT_POLLDEV
help
This driver simulates a mouse on GPIO lines of various CPUs (and some
other chips).
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/input-polldev.h>
+#include <linux/input.h>
#include <linux/gpio/consumer.h>
#include <linux/property.h>
#include <linux/of.h>
* Timer function which is run every scan_ms ms when the device is opened.
* The dev input variable is set to the the input_dev pointer.
*/
-static void gpio_mouse_scan(struct input_polled_dev *dev)
+static void gpio_mouse_scan(struct input_dev *input)
{
- struct gpio_mouse *gpio = dev->private;
- struct input_dev *input = dev->input;
+ struct gpio_mouse *gpio = input_get_drvdata(input);
int x, y;
if (gpio->bleft)
{
struct device *dev = &pdev->dev;
struct gpio_mouse *gmouse;
- struct input_polled_dev *input_poll;
struct input_dev *input;
- int ret;
+ int error;
gmouse = devm_kzalloc(dev, sizeof(*gmouse), GFP_KERNEL);
if (!gmouse)
return -ENOMEM;
/* Assign some default scanning time */
- ret = device_property_read_u32(dev, "scan-interval-ms",
- &gmouse->scan_ms);
- if (ret || gmouse->scan_ms == 0) {
+ error = device_property_read_u32(dev, "scan-interval-ms",
+ &gmouse->scan_ms);
+ if (error || gmouse->scan_ms == 0) {
dev_warn(dev, "invalid scan time, set to 50 ms\n");
gmouse->scan_ms = 50;
}
if (IS_ERR(gmouse->bright))
return PTR_ERR(gmouse->bright);
- input_poll = devm_input_allocate_polled_device(dev);
- if (!input_poll) {
- dev_err(dev, "not enough memory for input device\n");
+ input = devm_input_allocate_device(dev);
+ if (!input)
return -ENOMEM;
- }
-
- platform_set_drvdata(pdev, input_poll);
-
- /* set input-polldev handlers */
- input_poll->private = gmouse;
- input_poll->poll = gpio_mouse_scan;
- input_poll->poll_interval = gmouse->scan_ms;
- input = input_poll->input;
input->name = pdev->name;
input->id.bustype = BUS_HOST;
- input->dev.parent = &pdev->dev;
+
+ input_set_drvdata(input, gmouse);
input_set_capability(input, EV_REL, REL_X);
input_set_capability(input, EV_REL, REL_Y);
if (gmouse->bright)
input_set_capability(input, EV_KEY, BTN_RIGHT);
- ret = input_register_polled_device(input_poll);
- if (ret) {
+ error = input_setup_polling(input, gpio_mouse_scan);
+ if (error)
+ return error;
+
+ input_set_poll_interval(input, gmouse->scan_ms);
+
+ error = input_register_device(input);
+ if (error) {
dev_err(dev, "could not register input device\n");
- return ret;
+ return error;
}
dev_dbg(dev, "%d ms scan time, buttons: %s%s%s\n",
mutex_unlock(&input_dev->mutex);
+ disable_irq(data->irq);
+
return 0;
}
if (!input_dev)
return 0;
+ enable_irq(data->irq);
+
mutex_lock(&input_dev->mutex);
if (input_dev->users)
* Copyright (C) 2010-2011 Pixcir, Inc.
*/
+#include <asm/unaligned.h>
#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/input/mt.h>
#include <linux/input/touchscreen.h>
-#include <linux/gpio.h>
-#include <linux/gpio/consumer.h>
+#include <linux/interrupt.h>
#include <linux/of_device.h>
-#include <linux/platform_data/pixcir_i2c_ts.h>
-#include <asm/unaligned.h>
+#include <linux/module.h>
+#include <linux/slab.h>
#define PIXCIR_MAX_SLOTS 5 /* Max fingers supported by driver */
+/*
+ * Register map
+ */
+#define PIXCIR_REG_POWER_MODE 51
+#define PIXCIR_REG_INT_MODE 52
+
+/*
+ * Power modes:
+ * active: max scan speed
+ * idle: lower scan speed with automatic transition to active on touch
+ * halt: datasheet says sleep but this is more like halt as the chip
+ * clocks are cut and it can only be brought out of this mode
+ * using the RESET pin.
+ */
+enum pixcir_power_mode {
+ PIXCIR_POWER_ACTIVE,
+ PIXCIR_POWER_IDLE,
+ PIXCIR_POWER_HALT,
+};
+
+#define PIXCIR_POWER_MODE_MASK 0x03
+#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
+
+/*
+ * Interrupt modes:
+ * periodical: interrupt is asserted periodicaly
+ * diff coordinates: interrupt is asserted when coordinates change
+ * level on touch: interrupt level asserted during touch
+ * pulse on touch: interrupt pulse asserted during touch
+ *
+ */
+enum pixcir_int_mode {
+ PIXCIR_INT_PERIODICAL,
+ PIXCIR_INT_DIFF_COORD,
+ PIXCIR_INT_LEVEL_TOUCH,
+ PIXCIR_INT_PULSE_TOUCH,
+};
+
+#define PIXCIR_INT_MODE_MASK 0x03
+#define PIXCIR_INT_ENABLE (1UL << 3)
+#define PIXCIR_INT_POL_HIGH (1UL << 2)
+
+/**
+ * struct pixcir_i2c_chip_data - chip related data
+ * @max_fingers: Max number of fingers reported simultaneously by h/w
+ * @has_hw_ids: Hardware supports finger tracking IDs
+ *
+ */
+struct pixcir_i2c_chip_data {
+ u8 max_fingers;
+ bool has_hw_ids;
+};
+
struct pixcir_i2c_ts_data {
struct i2c_client *client;
struct input_dev *input;
struct gpio_desc *gpio_wake;
const struct pixcir_i2c_chip_data *chip;
struct touchscreen_properties prop;
- int max_fingers; /* Max fingers supported in this instance */
bool running;
};
memset(report, 0, sizeof(struct pixcir_report_data));
i = chip->has_hw_ids ? 1 : 0;
- readsize = 2 + tsdata->max_fingers * (4 + i);
+ readsize = 2 + tsdata->chip->max_fingers * (4 + i);
if (readsize > sizeof(rdbuf))
readsize = sizeof(rdbuf);
}
touch = rdbuf[0] & 0x7;
- if (touch > tsdata->max_fingers)
- touch = tsdata->max_fingers;
+ if (touch > tsdata->chip->max_fingers)
+ touch = tsdata->chip->max_fingers;
report->num_touches = touch;
bufptr = &rdbuf[2];
ret = i2c_smbus_read_byte_data(ts->client, PIXCIR_REG_POWER_MODE);
if (ret < 0) {
- dev_err(dev, "%s: can't read reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't read reg %d : %d\n",
__func__, PIXCIR_REG_POWER_MODE, ret);
return ret;
}
ret = i2c_smbus_write_byte_data(ts->client, PIXCIR_REG_POWER_MODE, ret);
if (ret < 0) {
- dev_err(dev, "%s: can't write reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't write reg %d : %d\n",
__func__, PIXCIR_REG_POWER_MODE, ret);
return ret;
}
ret = i2c_smbus_read_byte_data(ts->client, PIXCIR_REG_INT_MODE);
if (ret < 0) {
- dev_err(dev, "%s: can't read reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't read reg %d : %d\n",
__func__, PIXCIR_REG_INT_MODE, ret);
return ret;
}
ret = i2c_smbus_write_byte_data(ts->client, PIXCIR_REG_INT_MODE, ret);
if (ret < 0) {
- dev_err(dev, "%s: can't write reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't write reg %d : %d\n",
__func__, PIXCIR_REG_INT_MODE, ret);
return ret;
}
ret = i2c_smbus_read_byte_data(ts->client, PIXCIR_REG_INT_MODE);
if (ret < 0) {
- dev_err(dev, "%s: can't read reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't read reg %d : %d\n",
__func__, PIXCIR_REG_INT_MODE, ret);
return ret;
}
ret = i2c_smbus_write_byte_data(ts->client, PIXCIR_REG_INT_MODE, ret);
if (ret < 0) {
- dev_err(dev, "%s: can't write reg 0x%x : %d\n",
+ dev_err(dev, "%s: can't write reg %d : %d\n",
__func__, PIXCIR_REG_INT_MODE, ret);
return ret;
}
static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops,
pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume);
-#ifdef CONFIG_OF
-static const struct of_device_id pixcir_of_match[];
-
-static int pixcir_parse_dt(struct device *dev,
- struct pixcir_i2c_ts_data *tsdata)
-{
- tsdata->chip = of_device_get_match_data(dev);
- if (!tsdata->chip)
- return -EINVAL;
-
- return 0;
-}
-#else
-static int pixcir_parse_dt(struct device *dev,
- struct pixcir_i2c_ts_data *tsdata)
-{
- return -EINVAL;
-}
-#endif
-
static int pixcir_i2c_ts_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
- const struct pixcir_ts_platform_data *pdata =
- dev_get_platdata(&client->dev);
struct device *dev = &client->dev;
struct pixcir_i2c_ts_data *tsdata;
struct input_dev *input;
if (!tsdata)
return -ENOMEM;
- if (pdata) {
- tsdata->chip = &pdata->chip;
- } else if (dev->of_node) {
- error = pixcir_parse_dt(dev, tsdata);
- if (error)
- return error;
- } else {
- dev_err(dev, "platform data not defined\n");
- return -EINVAL;
- }
-
- if (!tsdata->chip->max_fingers) {
- dev_err(dev, "Invalid max_fingers in chip data\n");
+ tsdata->chip = device_get_match_data(dev);
+ if (!tsdata->chip && id)
+ tsdata->chip = (const void *)id->driver_data;
+ if (!tsdata->chip) {
+ dev_err(dev, "can't locate chip data\n");
return -EINVAL;
}
input->id.bustype = BUS_I2C;
input->open = pixcir_input_open;
input->close = pixcir_input_close;
- input->dev.parent = dev;
-
- if (pdata) {
- input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
- input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
- } else {
- input_set_capability(input, EV_ABS, ABS_MT_POSITION_X);
- input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
- touchscreen_parse_properties(input, true, &tsdata->prop);
- if (!input_abs_get_max(input, ABS_MT_POSITION_X) ||
- !input_abs_get_max(input, ABS_MT_POSITION_Y)) {
- dev_err(dev, "Touchscreen size is not specified\n");
- return -EINVAL;
- }
- }
- tsdata->max_fingers = tsdata->chip->max_fingers;
- if (tsdata->max_fingers > PIXCIR_MAX_SLOTS) {
- tsdata->max_fingers = PIXCIR_MAX_SLOTS;
- dev_info(dev, "Limiting maximum fingers to %d\n",
- tsdata->max_fingers);
+ input_set_capability(input, EV_ABS, ABS_MT_POSITION_X);
+ input_set_capability(input, EV_ABS, ABS_MT_POSITION_Y);
+ touchscreen_parse_properties(input, true, &tsdata->prop);
+ if (!input_abs_get_max(input, ABS_MT_POSITION_X) ||
+ !input_abs_get_max(input, ABS_MT_POSITION_Y)) {
+ dev_err(dev, "Touchscreen size is not specified\n");
+ return -EINVAL;
}
- error = input_mt_init_slots(input, tsdata->max_fingers,
+ error = input_mt_init_slots(input, tsdata->chip->max_fingers,
INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
if (error) {
dev_err(dev, "Error initializing Multi-Touch slots\n");
tsdata->gpio_attb = devm_gpiod_get(dev, "attb", GPIOD_IN);
if (IS_ERR(tsdata->gpio_attb)) {
error = PTR_ERR(tsdata->gpio_attb);
- dev_err(dev, "Failed to request ATTB gpio: %d\n", error);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "Failed to request ATTB gpio: %d\n",
+ error);
return error;
}
GPIOD_OUT_LOW);
if (IS_ERR(tsdata->gpio_reset)) {
error = PTR_ERR(tsdata->gpio_reset);
- dev_err(dev, "Failed to request RESET gpio: %d\n", error);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev, "Failed to request RESET gpio: %d\n",
+ error);
return error;
}
return 0;
}
-static const struct i2c_device_id pixcir_i2c_ts_id[] = {
- { "pixcir_ts", 0 },
- { "pixcir_tangoc", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id);
-
-#ifdef CONFIG_OF
static const struct pixcir_i2c_chip_data pixcir_ts_data = {
.max_fingers = 2,
/* no hw id support */
.has_hw_ids = true,
};
+static const struct i2c_device_id pixcir_i2c_ts_id[] = {
+ { "pixcir_ts", (unsigned long) &pixcir_ts_data },
+ { "pixcir_tangoc", (unsigned long) &pixcir_tangoc_data },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id);
+
+#ifdef CONFIG_OF
static const struct of_device_id pixcir_of_match[] = {
{ .compatible = "pixcir,pixcir_ts", .data = &pixcir_ts_data },
{ .compatible = "pixcir,pixcir_tangoc", .data = &pixcir_tangoc_data },
void input_set_poll_interval(struct input_dev *dev, unsigned int interval);
void input_set_min_poll_interval(struct input_dev *dev, unsigned int interval);
void input_set_max_poll_interval(struct input_dev *dev, unsigned int interval);
+int input_get_poll_interval(struct input_dev *dev);
int __must_check input_register_handler(struct input_handler *);
void input_unregister_handler(struct input_handler *);
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _PIXCIR_I2C_TS_H
-#define _PIXCIR_I2C_TS_H
-
-/*
- * Register map
- */
-#define PIXCIR_REG_POWER_MODE 51
-#define PIXCIR_REG_INT_MODE 52
-
-/*
- * Power modes:
- * active: max scan speed
- * idle: lower scan speed with automatic transition to active on touch
- * halt: datasheet says sleep but this is more like halt as the chip
- * clocks are cut and it can only be brought out of this mode
- * using the RESET pin.
- */
-enum pixcir_power_mode {
- PIXCIR_POWER_ACTIVE,
- PIXCIR_POWER_IDLE,
- PIXCIR_POWER_HALT,
-};
-
-#define PIXCIR_POWER_MODE_MASK 0x03
-#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
-
-/*
- * Interrupt modes:
- * periodical: interrupt is asserted periodicaly
- * diff coordinates: interrupt is asserted when coordinates change
- * level on touch: interrupt level asserted during touch
- * pulse on touch: interrupt pulse asserted druing touch
- *
- */
-enum pixcir_int_mode {
- PIXCIR_INT_PERIODICAL,
- PIXCIR_INT_DIFF_COORD,
- PIXCIR_INT_LEVEL_TOUCH,
- PIXCIR_INT_PULSE_TOUCH,
-};
-
-#define PIXCIR_INT_MODE_MASK 0x03
-#define PIXCIR_INT_ENABLE (1UL << 3)
-#define PIXCIR_INT_POL_HIGH (1UL << 2)
-
-/**
- * struct pixcir_irc_chip_data - chip related data
- * @max_fingers: Max number of fingers reported simultaneously by h/w
- * @has_hw_ids: Hardware supports finger tracking IDs
- *
- */
-struct pixcir_i2c_chip_data {
- u8 max_fingers;
- bool has_hw_ids;
-};
-
-struct pixcir_ts_platform_data {
- int x_max;
- int y_max;
- struct pixcir_i2c_chip_data chip;
-};
-
-#endif
projects / linux-2.6-block.git / commitdiff