gpio: Drop unused pca9698 driver

This is not used. Drop the driver and Kconfig option.

Signed-off-by: Simon Glass <sjg@chromium.org>

2 files changed, 0 insertions, 128 deletions

diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 889a88dc88..fcd136367a 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -28,7 +28,6 @@ obj-$(CONFIG_MXC_GPIO)	+= mxc_gpio.o
 obj-$(CONFIG_MXS_GPIO)	+= mxs_gpio.o
 obj-$(CONFIG_NPCM_GPIO)      	+= npcm_gpio.o
 obj-$(CONFIG_PCA953X)		+= pca953x.o
-obj-$(CONFIG_PCA9698)		+= pca9698.o
 obj-$(CONFIG_ROCKCHIP_GPIO)	+= rk_gpio.o
 obj-$(CONFIG_RCAR_GPIO)		+= gpio-rcar.o
 obj-$(CONFIG_RZA1_GPIO)		+= gpio-rza1.o
diff --git a/drivers/gpio/pca9698.c b/drivers/gpio/pca9698.c
deleted file mode 100644
index 11274c7810..0000000000
--- 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);
-}