1 files changed, 0 insertions, 132 deletions
diff --git a/sound/soc/codecs/l3.c b/sound/soc/codecs/l3.c
deleted file mode 100644
index b84f6f1f6800..000000000000
--- a/sound/soc/codecs/l3.c
+++ /dev/null
@@ -1,132 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * L3 code
- *
- *  Copyright (C) 2008, Christian Pellegrin <chripell@evolware.org>
- *
- * based on:
- *
- * L3 bus algorithm module.
- *
- *  Copyright (C) 2001 Russell King, All Rights Reserved.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-
-#include <sound/l3.h>
-
-/*
- * Send one byte of data to the chip.  Data is latched into the chip on
- * the rising edge of the clock.
- */
-static void sendbyte(struct l3_pins *adap, unsigned int byte)
-{
-	int i;
-
-	for (i = 0; i < 8; i++) {
-		adap->setclk(adap, 0);
-		udelay(adap->data_hold);
-		adap->setdat(adap, byte & 1);
-		udelay(adap->data_setup);
-		adap->setclk(adap, 1);
-		udelay(adap->clock_high);
-		byte >>= 1;
-	}
-}
-
-/*
- * Send a set of bytes to the chip.  We need to pulse the MODE line
- * between each byte, but never at the start nor at the end of the
- * transfer.
- */
-static void sendbytes(struct l3_pins *adap, const u8 *buf,
-		      int len)
-{
-	int i;
-
-	for (i = 0; i < len; i++) {
-		if (i) {
-			udelay(adap->mode_hold);
-			adap->setmode(adap, 0);
-			udelay(adap->mode);
-		}
-		adap->setmode(adap, 1);
-		udelay(adap->mode_setup);
-		sendbyte(adap, buf[i]);
-	}
-}
-
-int l3_write(struct l3_pins *adap, u8 addr, u8 *data, int len)
-{
-	adap->setclk(adap, 1);
-	adap->setdat(adap, 1);
-	adap->setmode(adap, 1);
-	udelay(adap->mode);
-
-	adap->setmode(adap, 0);
-	udelay(adap->mode_setup);
-	sendbyte(adap, addr);
-	udelay(adap->mode_hold);
-
-	sendbytes(adap, data, len);
-
-	adap->setclk(adap, 1);
-	adap->setdat(adap, 1);
-	adap->setmode(adap, 0);
-
-	return len;
-}
-EXPORT_SYMBOL_GPL(l3_write);
-
-
-static void l3_set_clk(struct l3_pins *adap, int val)
-{
-	gpio_set_value(adap->gpio_clk, val);
-}
-
-static void l3_set_data(struct l3_pins *adap, int val)
-{
-	gpio_set_value(adap->gpio_data, val);
-}
-
-static void l3_set_mode(struct l3_pins *adap, int val)
-{
-	gpio_set_value(adap->gpio_mode, val);
-}
-
-int l3_set_gpio_ops(struct device *dev, struct l3_pins *adap)
-{
-	int ret;
-
-	if (!adap->use_gpios)
-		return -EINVAL;
-
-	ret = devm_gpio_request_one(dev, adap->gpio_data,
-				GPIOF_OUT_INIT_LOW, "l3_data");
-	if (ret < 0)
-		return ret;
-	adap->setdat = l3_set_data;
-
-	ret = devm_gpio_request_one(dev, adap->gpio_clk,
-				GPIOF_OUT_INIT_LOW, "l3_clk");
-	if (ret < 0)
-		return ret;
-	adap->setclk = l3_set_clk;
-
-	ret = devm_gpio_request_one(dev, adap->gpio_mode,
-				GPIOF_OUT_INIT_LOW, "l3_mode");
-	if (ret < 0)
-		return ret;
-	adap->setmode = l3_set_mode;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(l3_set_gpio_ops);
-
-MODULE_DESCRIPTION("L3 bit-banging driver");
-MODULE_AUTHOR("Christian Pellegrin <chripell@evolware.org>");
-MODULE_LICENSE("GPL");