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68 lines
1.6 KiB
68 lines
1.6 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* cyttsp_i2c.c |
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* Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver. |
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* For use with Cypress Txx3xx parts. |
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* Supported parts include: |
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* CY8CTST341 |
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* CY8CTMA340 |
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* |
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* Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc. |
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* Copyright (C) 2012 Javier Martinez Canillas <[email protected]> |
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* |
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* Contact Cypress Semiconductor at www.cypress.com <[email protected]> |
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*/ |
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#include "cyttsp_core.h" |
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#include <linux/i2c.h> |
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#include <linux/input.h> |
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#define CY_I2C_DATA_SIZE 128 |
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static const struct cyttsp_bus_ops cyttsp_i2c_bus_ops = { |
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.bustype = BUS_I2C, |
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.write = cyttsp_i2c_write_block_data, |
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.read = cyttsp_i2c_read_block_data, |
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}; |
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static int cyttsp_i2c_probe(struct i2c_client *client, |
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const struct i2c_device_id *id) |
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{ |
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struct cyttsp *ts; |
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { |
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dev_err(&client->dev, "I2C functionality not Supported\n"); |
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return -EIO; |
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} |
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ts = cyttsp_probe(&cyttsp_i2c_bus_ops, &client->dev, client->irq, |
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CY_I2C_DATA_SIZE); |
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if (IS_ERR(ts)) |
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return PTR_ERR(ts); |
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i2c_set_clientdata(client, ts); |
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return 0; |
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} |
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static const struct i2c_device_id cyttsp_i2c_id[] = { |
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{ CY_I2C_NAME, 0 }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(i2c, cyttsp_i2c_id); |
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static struct i2c_driver cyttsp_i2c_driver = { |
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.driver = { |
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.name = CY_I2C_NAME, |
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.pm = &cyttsp_pm_ops, |
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}, |
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.probe = cyttsp_i2c_probe, |
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.id_table = cyttsp_i2c_id, |
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}; |
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module_i2c_driver(cyttsp_i2c_driver); |
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MODULE_LICENSE("GPL"); |
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MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver"); |
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MODULE_AUTHOR("Cypress");
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