[PATCH] i2c: scx200: drop GPIO based i2c driver
From: Wolfram Sang
Date: Wed Jul 09 2014 - 10:27:28 EST
This driver is marked as deprecated since the pre-git era. Any user
left(?) should really have switched to i2c-gpio meanwhile.
Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxxxxx>
---
drivers/i2c/busses/Kconfig | 31 ----------
drivers/i2c/busses/Makefile | 1 -
drivers/i2c/busses/scx200_i2c.c | 129 ----------------------------------------
3 files changed, 161 deletions(-)
delete mode 100644 drivers/i2c/busses/scx200_i2c.c
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index d25dd120c011..0a8a5bba4ef9 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -1008,37 +1008,6 @@ config I2C_CROS_EC_TUNNEL
connected there. This will work whatever the interface used to
talk to the EC (SPI, I2C or LPC).
-config SCx200_I2C
- tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
- depends on SCx200_GPIO
- select I2C_ALGOBIT
- help
- Enable the use of two GPIO pins of a SCx200 processor as an I2C bus.
-
- If you don't know what to do here, say N.
-
- This support is also available as a module. If so, the module
- will be called scx200_i2c.
-
- This driver is deprecated and will be dropped soon. Use i2c-gpio
- (or scx200_acb) instead.
-
-config SCx200_I2C_SCL
- int "GPIO pin used for SCL"
- depends on SCx200_I2C
- default "12"
- help
- Enter the GPIO pin number used for the SCL signal. This value can
- also be specified with a module parameter.
-
-config SCx200_I2C_SDA
- int "GPIO pin used for SDA"
- depends on SCx200_I2C
- default "13"
- help
- Enter the GPIO pin number used for the SSA signal. This value can
- also be specified with a module parameter.
-
config SCx200_ACB
tristate "Geode ACCESS.bus support"
depends on X86_32 && PCI
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 1958b490105e..49bf07e5ef4d 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -100,6 +100,5 @@ obj-$(CONFIG_I2C_ELEKTOR) += i2c-elektor.o
obj-$(CONFIG_I2C_PCA_ISA) += i2c-pca-isa.o
obj-$(CONFIG_I2C_SIBYTE) += i2c-sibyte.o
obj-$(CONFIG_SCx200_ACB) += scx200_acb.o
-obj-$(CONFIG_SCx200_I2C) += scx200_i2c.o
ccflags-$(CONFIG_I2C_DEBUG_BUS) := -DDEBUG
diff --git a/drivers/i2c/busses/scx200_i2c.c b/drivers/i2c/busses/scx200_i2c.c
deleted file mode 100644
index 8eadf0f47ad7..000000000000
--- a/drivers/i2c/busses/scx200_i2c.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* linux/drivers/i2c/busses/scx200_i2c.c
-
- Copyright (c) 2001,2002 Christer Weinigel <wingel@xxxxxxxxxxxxxxx>
-
- National Semiconductor SCx200 I2C bus on GPIO pins
-
- Based on i2c-velleman.c Copyright (C) 1995-96, 2000 Simon G. Vogl
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/i2c-algo-bit.h>
-#include <linux/io.h>
-
-#include <linux/scx200_gpio.h>
-
-MODULE_AUTHOR("Christer Weinigel <wingel@xxxxxxxxxxxxxxx>");
-MODULE_DESCRIPTION("NatSemi SCx200 I2C Driver");
-MODULE_LICENSE("GPL");
-
-static int scl = CONFIG_SCx200_I2C_SCL;
-static int sda = CONFIG_SCx200_I2C_SDA;
-
-module_param(scl, int, 0);
-MODULE_PARM_DESC(scl, "GPIO line for SCL");
-module_param(sda, int, 0);
-MODULE_PARM_DESC(sda, "GPIO line for SDA");
-
-static void scx200_i2c_setscl(void *data, int state)
-{
- scx200_gpio_set(scl, state);
-}
-
-static void scx200_i2c_setsda(void *data, int state)
-{
- scx200_gpio_set(sda, state);
-}
-
-static int scx200_i2c_getscl(void *data)
-{
- return scx200_gpio_get(scl);
-}
-
-static int scx200_i2c_getsda(void *data)
-{
- return scx200_gpio_get(sda);
-}
-
-/* ------------------------------------------------------------------------
- * Encapsulate the above functions in the correct operations structure.
- * This is only done when more than one hardware adapter is supported.
- */
-
-static struct i2c_algo_bit_data scx200_i2c_data = {
- .setsda = scx200_i2c_setsda,
- .setscl = scx200_i2c_setscl,
- .getsda = scx200_i2c_getsda,
- .getscl = scx200_i2c_getscl,
- .udelay = 10,
- .timeout = HZ,
-};
-
-static struct i2c_adapter scx200_i2c_ops = {
- .owner = THIS_MODULE,
- .class = I2C_CLASS_HWMON | I2C_CLASS_SPD,
- .algo_data = &scx200_i2c_data,
- .name = "NatSemi SCx200 I2C",
-};
-
-static int scx200_i2c_init(void)
-{
- pr_debug("NatSemi SCx200 I2C Driver\n");
-
- if (!scx200_gpio_present()) {
- pr_err("no SCx200 gpio pins available\n");
- return -ENODEV;
- }
-
- pr_debug("SCL=GPIO%02u, SDA=GPIO%02u\n", scl, sda);
-
- if (scl == -1 || sda == -1 || scl == sda) {
- pr_err("scl and sda must be specified\n");
- return -EINVAL;
- }
-
- /* Configure GPIOs as open collector outputs */
- scx200_gpio_configure(scl, ~2, 5);
- scx200_gpio_configure(sda, ~2, 5);
-
- if (i2c_bit_add_bus(&scx200_i2c_ops) < 0) {
- pr_err("adapter %s registration failed\n", scx200_i2c_ops.name);
- return -ENODEV;
- }
-
- return 0;
-}
-
-static void scx200_i2c_cleanup(void)
-{
- i2c_del_adapter(&scx200_i2c_ops);
-}
-
-module_init(scx200_i2c_init);
-module_exit(scx200_i2c_cleanup);
-
-/*
- Local variables:
- compile-command: "make -k -C ../.. SUBDIRS=drivers/i2c modules"
- c-basic-offset: 8
- End:
-*/
--
2.0.0
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