ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/input/touchscreen/cyttsp_i2c_common.c b/marvell/linux/drivers/input/touchscreen/cyttsp_i2c_common.c
new file mode 100644
index 0000000..1f0b6d6
--- /dev/null
+++ b/marvell/linux/drivers/input/touchscreen/cyttsp_i2c_common.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cyttsp_i2c_common.c
+ * Cypress TrueTouch(TM) Standard Product (TTSP) I2C touchscreen driver.
+ * For use with Cypress Txx3xx and Txx4xx parts.
+ * Supported parts include:
+ * CY8CTST341
+ * CY8CTMA340
+ * TMA4XX
+ * TMA1036
+ *
+ * Copyright (C) 2009, 2010, 2011 Cypress Semiconductor, Inc.
+ * Copyright (C) 2012 Javier Martinez Canillas <javier@dowhile0.org>
+ *
+ * Contact Cypress Semiconductor at www.cypress.com <ttdrivers@cypress.com>
+ */
+
+#include <linux/device.h>
+#include <linux/export.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "cyttsp4_core.h"
+
+int cyttsp_i2c_read_block_data(struct device *dev, u8 *xfer_buf,
+ u16 addr, u8 length, void *values)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ u8 client_addr = client->addr | ((addr >> 8) & 0x1);
+ u8 addr_lo = addr & 0xFF;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = client_addr,
+ .flags = 0,
+ .len = 1,
+ .buf = &addr_lo,
+ },
+ {
+ .addr = client_addr,
+ .flags = I2C_M_RD,
+ .len = length,
+ .buf = values,
+ },
+ };
+ int retval;
+
+ retval = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (retval < 0)
+ return retval;
+
+ return retval != ARRAY_SIZE(msgs) ? -EIO : 0;
+}
+EXPORT_SYMBOL_GPL(cyttsp_i2c_read_block_data);
+
+int cyttsp_i2c_write_block_data(struct device *dev, u8 *xfer_buf,
+ u16 addr, u8 length, const void *values)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ u8 client_addr = client->addr | ((addr >> 8) & 0x1);
+ u8 addr_lo = addr & 0xFF;
+ struct i2c_msg msgs[] = {
+ {
+ .addr = client_addr,
+ .flags = 0,
+ .len = length + 1,
+ .buf = xfer_buf,
+ },
+ };
+ int retval;
+
+ xfer_buf[0] = addr_lo;
+ memcpy(&xfer_buf[1], values, length);
+
+ retval = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (retval < 0)
+ return retval;
+
+ return retval != ARRAY_SIZE(msgs) ? -EIO : 0;
+}
+EXPORT_SYMBOL_GPL(cyttsp_i2c_write_block_data);
+
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Cypress");