Merge branch '2023-02-07-Kconfig-cleanup-dead-code-removal'

To quote the author:
This series adds source scanning to moveconfig.py so that it can look
for Kconfig options mentioned in the source which do not appear in
Kconfig, and vice versa.

This tool is then used to clean up the unused or obsolete options
mentioned in Makefiles, along with any attached source code.

1 files changed, 0 insertions, 127 deletions

diff --git a/drivers/gpio/pca9698.c b/drivers/gpio/pca9698.c
deleted file mode 100644
index 11274c78101..00000000000
--- a/drivers/gpio/pca9698.c
+++ /dev/null
@@ -1,127 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * (C) Copyright 2011
- * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- */
-
-/*
- * Driver for NXP's pca9698 40 bit I2C gpio expander
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <malloc.h>
-#include <linux/errno.h>
-#include <pca9698.h>
-
-/*
- * The pca9698 registers
- */
-
-#define PCA9698_REG_INPUT		0x00
-#define PCA9698_REG_OUTPUT		0x08
-#define PCA9698_REG_POLARITY		0x10
-#define PCA9698_REG_CONFIG		0x18
-
-#define PCA9698_BUFFER_SIZE		5
-#define PCA9698_GPIO_COUNT		40
-
-static int pca9698_read40(u8 addr, u8 offset, u8 *buffer)
-{
-	u8 command = offset | 0x80;  /* autoincrement */
-
-	return i2c_read(addr, command, 1, buffer, PCA9698_BUFFER_SIZE);
-}
-
-static int pca9698_write40(u8 addr, u8 offset, u8 *buffer)
-{
-	u8 command = offset | 0x80;  /* autoincrement */
-
-	return i2c_write(addr, command, 1, buffer, PCA9698_BUFFER_SIZE);
-}
-
-static void pca9698_set_bit(unsigned gpio, u8 *buffer, unsigned value)
-{
-	unsigned byte = gpio / 8;
-	unsigned bit = gpio % 8;
-
-	if (value)
-		buffer[byte] |= (1 << bit);
-	else
-		buffer[byte] &= ~(1 << bit);
-}
-
-int pca9698_request(unsigned gpio, const char *label)
-{
-	if (gpio >= PCA9698_GPIO_COUNT)
-		return -EINVAL;
-
-	return 0;
-}
-
-void pca9698_free(unsigned gpio)
-{
-}
-
-int pca9698_direction_input(u8 addr, unsigned gpio)
-{
-	u8 data[PCA9698_BUFFER_SIZE];
-	int res;
-
-	res = pca9698_read40(addr, PCA9698_REG_CONFIG, data);
-	if (res)
-		return res;
-
-	pca9698_set_bit(gpio, data, 1);
-
-	return pca9698_write40(addr, PCA9698_REG_CONFIG, data);
-}
-
-int pca9698_direction_output(u8 addr, unsigned gpio, int value)
-{
-	u8 data[PCA9698_BUFFER_SIZE];
-	int res;
-
-	res = pca9698_set_value(addr, gpio, value);
-	if (res)
-		return res;
-
-	res = pca9698_read40(addr, PCA9698_REG_CONFIG, data);
-	if (res)
-		return res;
-
-	pca9698_set_bit(gpio, data, 0);
-
-	return pca9698_write40(addr, PCA9698_REG_CONFIG, data);
-}
-
-int pca9698_get_value(u8 addr, unsigned gpio)
-{
-	unsigned config_byte = gpio / 8;
-	unsigned config_bit = gpio % 8;
-	unsigned value;
-	u8 data[PCA9698_BUFFER_SIZE];
-	int res;
-
-	res = pca9698_read40(addr, PCA9698_REG_INPUT, data);
-	if (res)
-		return -1;
-
-	value = data[config_byte] & (1 << config_bit);
-
-	return !!value;
-}
-
-int pca9698_set_value(u8 addr, unsigned gpio, int value)
-{
-	u8 data[PCA9698_BUFFER_SIZE];
-	int res;
-
-	res = pca9698_read40(addr, PCA9698_REG_OUTPUT, data);
-	if (res)
-		return res;
-
-	pca9698_set_bit(gpio, data, value);
-
-	return pca9698_write40(addr, PCA9698_REG_OUTPUT, data);
-}