Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 72 insertions, 0 deletions

diff --git a/drivers/input/touchscreen/cyttsp4_i2c.c b/drivers/input/touchscreen/cyttsp4_i2c.c
new file mode 100644
index 0000000000..80a6890cd4
--- /dev/null
+++ b/drivers/input/touchscreen/cyttsp4_i2c.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cyttsp_i2c.c
+ * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver.
+ * For use with Cypress  Txx4xx parts.
+ * Supported parts include:
+ * TMA4XX
+ * TMA1036
+ *
+ * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
+ * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
+ * Copyright (C) 2013 Cypress Semiconductor
+ *
+ * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com>
+ */
+
+#include "cyttsp4_core.h"
+
+#include <linux/i2c.h>
+#include <linux/input.h>
+
+#define CYTTSP4_I2C_DATA_SIZE	(3 * 256)
+
+static const struct cyttsp4_bus_ops cyttsp4_i2c_bus_ops = {
+	.bustype	= BUS_I2C,
+	.write		= cyttsp_i2c_write_block_data,
+	.read           = cyttsp_i2c_read_block_data,
+};
+
+static int cyttsp4_i2c_probe(struct i2c_client *client)
+{
+	struct cyttsp4 *ts;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "I2C functionality not Supported\n");
+		return -EIO;
+	}
+
+	ts = cyttsp4_probe(&cyttsp4_i2c_bus_ops, &client->dev, client->irq,
+			  CYTTSP4_I2C_DATA_SIZE);
+
+	return PTR_ERR_OR_ZERO(ts);
+}
+
+static void cyttsp4_i2c_remove(struct i2c_client *client)
+{
+	struct cyttsp4 *ts = i2c_get_clientdata(client);
+
+	cyttsp4_remove(ts);
+}
+
+static const struct i2c_device_id cyttsp4_i2c_id[] = {
+	{ CYTTSP4_I2C_NAME, 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, cyttsp4_i2c_id);
+
+static struct i2c_driver cyttsp4_i2c_driver = {
+	.driver = {
+		.name	= CYTTSP4_I2C_NAME,
+		.pm	= pm_ptr(&cyttsp4_pm_ops),
+	},
+	.probe		= cyttsp4_i2c_probe,
+	.remove		= cyttsp4_i2c_remove,
+	.id_table	= cyttsp4_i2c_id,
+};
+
+module_i2c_driver(cyttsp4_i2c_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Cypress TrueTouch(R) Standard Product (TTSP) I2C driver");
+MODULE_AUTHOR("Cypress");