gpio: Drop unused pca9698 driver

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

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2023-02-01 13:19:56 -07:00 committed by Tom Rini
parent dc1756a4a9
commit 408296aad9
5 changed files with 1 additions and 188 deletions

View file

@ -30,9 +30,6 @@
#ifdef CONFIG_PCF857X
#include <pcf857x.h>
#endif
#ifdef CONFIG_PCA9698
#include <pca9698.h>
#endif
#ifdef CONFIG_PCA9554
#include <pca9554.h>
#endif
@ -59,13 +56,6 @@ static const char * const pca9555_gpio_list[] = {
};
#endif
#ifdef CONFIG_PCA9698
/** List of compatible strings supported by pca9698 driver */
static const char * const pca9698_gpio_list[] = {
"nxp,pca9505", "pca9505", "nxp,pca9698", "pca9698", NULL,
};
#endif
#ifdef CONFIG_PCA953X
/** List of compatible strings supported by pca953x driver */
static const char * const pca953x_gpio_list[] = {
@ -807,19 +797,6 @@ int octeon_fdt_read_gpio(const void *fdt, int phandle, int pin)
}
value = (value >> pin) & 1;
break;
#endif
#ifdef CONFIG_PCA9698
case CVMX_GPIO_PIN_PCA9698:
node = fdt_node_offset_by_phandle(fdt, phandle);
if (octeon_fdt_get_i2c_bus_addr(fdt, node, &bus, &addr)) {
printf("%s: Could not get gpio bus and/or address\n", __func__);
return -1;
}
old_bus = i2c_get_bus_num();
i2c_set_bus_num(bus);
value = pca9698_get_value(addr, pin);
i2c_set_bus_num(old_bus);
break;
#endif
case CVMX_GPIO_PIN_OCTEON:
value = gpio_get_value(pin);
@ -880,18 +857,6 @@ int octeon_fdt_set_gpio(const void *fdt, int phandle, int pin, int val)
return -1;
}
return pcf957x_set_val(bus, addr, 1 << pin, val << pin);
#endif
#ifdef CONFIG_PCA9698
case CVMX_GPIO_PIN_PCA9698:
if (octeon_fdt_get_i2c_bus_addr(fdt, node, &bus, &addr)) {
printf("%s: Could not get gpio bus and/or address\n", __func__);
return -1;
}
old_bus = i2c_get_bus_num();
i2c_set_bus_num(bus);
rc = pca9698_set_value(addr, pin, val);
i2c_set_bus_num(old_bus);
return rc;
#endif
case CVMX_GPIO_PIN_OCTEON:
return gpio_set_value(pin, val);
@ -951,13 +916,7 @@ int octeon_fdt_get_gpio_info(int fdt_node, enum octeon_gpio_type *type,
*type = GPIO_TYPE_PCA953X;
}
#endif
#ifdef CONFIG_PCA9698
if (!octeon_fdt_node_check_compatible(fdt, fdt_node, pca9698_gpio_list)) {
debug("%s: Found PCA9698 compatible GPIO", __func__);
*type = GPIO_TYPE_PCA9698;
}
#endif
#if defined(CONFIG_PCA953X) || defined(CONFIG_PCA9698) || \
#if defined(CONFIG_PCA953X) || \
defined(CONFIG_PCA9555) || defined(CONFIG_PCA9554)
if (!i2c_addr || !i2c_bus) {
printf("%s: Error: i2c_addr or i2c_bus is NULL\n", __func__);

View file

@ -15,7 +15,6 @@
#include <u-boot/sha1.h>
#include <asm/byteorder.h>
#include <asm/unaligned.h>
#include <pca9698.h>
#include "hre.h"

View file

@ -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

View file

@ -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);
}

View file

@ -1,17 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Copyright 2011
* Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
*/
#ifndef __PCA9698_H_
#define __PCA9698_H_
int pca9698_request(unsigned gpio, const char *label);
void pca9698_free(unsigned gpio);
int pca9698_direction_input(u8 addr, unsigned gpio);
int pca9698_direction_output(u8 addr, unsigned gpio, int value);
int pca9698_get_value(u8 addr, unsigned gpio);
int pca9698_set_value(u8 addr, unsigned gpio, int value);
#endif /* __PCA9698_H_ */