1 files changed, 0 insertions, 127 deletions
diff --git a/driver/usb_mux/ps874x.c b/driver/usb_mux/ps874x.c
deleted file mode 100644
index db13180c1c..0000000000
--- a/driver/usb_mux/ps874x.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/* Copyright 2017 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * Parade PS874X USB Type-C Redriving Switch for USB Host / DisplayPort.
- */
-
-#include "common.h"
-#include "i2c.h"
-#include "ps874x.h"
-#include "usb_mux.h"
-#include "util.h"
-
-static inline int ps874x_read(int port, uint8_t reg, int *val)
-{
-	return i2c_read8(I2C_PORT_USB_MUX, MUX_ADDR(port),
-			 reg, val);
-}
-
-static inline int ps874x_write(int port, uint8_t reg, uint8_t val)
-{
-	return i2c_write8(I2C_PORT_USB_MUX, MUX_ADDR(port),
-			  reg, val);
-}
-
-static int ps874x_init(int port)
-{
-	int val;
-	int res;
-
-	/* Reset chip back to power-on state */
-	res = ps874x_write(port, PS874X_REG_MODE, PS874X_MODE_POWER_DOWN);
-	if (res)
-		return res;
-
-	/*
-	 * Verify revision / chip ID registers.
-	 */
-	res = ps874x_read(port, PS874X_REG_REVISION_ID1, &val);
-	if (res)
-		return res;
-
-#ifdef CONFIG_USB_MUX_PS8743
-	/*
-	 * From Parade: PS8743 may have REVISION_ID1 as 0 or 1
-	 * Rev 1 is derived from Rev 0 and have same functionality.
-	 */
-	if (val != PS874X_REVISION_ID1_0 && val != PS874X_REVISION_ID1_1)
-		return EC_ERROR_UNKNOWN;
-#else
-	if (val != PS874X_REVISION_ID1)
-		return EC_ERROR_UNKNOWN;
-#endif
-
-	res = ps874x_read(port, PS874X_REG_REVISION_ID2, &val);
-	if (res)
-		return res;
-	if (val != PS874X_REVISION_ID2)
-		return EC_ERROR_UNKNOWN;
-
-	res = ps874x_read(port, PS874X_REG_CHIP_ID1, &val);
-	if (res)
-		return res;
-	if (val != PS874X_CHIP_ID1)
-		return EC_ERROR_UNKNOWN;
-
-	res  = ps874x_read(port, PS874X_REG_CHIP_ID2, &val);
-	if (res)
-		return res;
-	if (val != PS874X_CHIP_ID2)
-		return EC_ERROR_UNKNOWN;
-
-	return EC_SUCCESS;
-}
-
-/* Writes control register to set switch mode */
-static int ps874x_set_mux(int port, mux_state_t mux_state)
-{
-	uint8_t reg = 0;
-
-	if (mux_state & MUX_USB_ENABLED)
-		reg |= PS874X_MODE_USB_ENABLED;
-	if (mux_state & MUX_DP_ENABLED)
-		reg |= PS874X_MODE_DP_ENABLED;
-	if (mux_state & MUX_POLARITY_INVERTED)
-		reg |= PS874X_MODE_POLARITY_INVERTED;
-
-	return ps874x_write(port, PS874X_REG_MODE, reg);
-}
-
-/* Reads control register and updates mux_state accordingly */
-static int ps874x_get_mux(int port, mux_state_t *mux_state)
-{
-	int reg;
-	int res;
-
-	res = ps874x_read(port, PS874X_REG_STATUS, &reg);
-	if (res)
-		return res;
-
-	*mux_state = 0;
-	if (reg & PS874X_STATUS_USB_ENABLED)
-		*mux_state |= MUX_USB_ENABLED;
-	if (reg & PS874X_STATUS_DP_ENABLED)
-		*mux_state |= MUX_DP_ENABLED;
-	if (reg & PS874X_STATUS_POLARITY_INVERTED)
-		*mux_state |= MUX_POLARITY_INVERTED;
-
-	return EC_SUCCESS;
-}
-
-/* Tune USB Tx/Rx Equalization */
-int ps874x_tune_usb_eq(int port, uint8_t tx, uint8_t rx)
-{
-	int ret;
-
-	ret = ps874x_write(port, PS874X_REG_USB_EQ_TX, tx);
-	ret |= ps874x_write(port, PS874X_REG_USB_EQ_RX, rx);
-
-	return ret;
-}
-
-const struct usb_mux_driver ps874x_usb_mux_driver = {
-	.init = ps874x_init,
-	.set = ps874x_set_mux,
-	.get = ps874x_get_mux,
-};