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authorPeter Rosin2017-08-22 08:27:08 +0200
committerGreg Kroah-Hartman2017-08-28 17:11:28 +0200
commit8f3addf1b451784104ba3593d80702b4815d5a94 (patch)
treed35e350095bb323a3e66b435b6f96edfa392b05f /drivers/mux/mux-adg792a.c
parentmux: include compiler.h from mux/consumer.h (diff)
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mux: zap mux- prefix from the source files
Preserve the module names with Makefile additions. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mux/mux-adg792a.c')
-rw-r--r--drivers/mux/mux-adg792a.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/drivers/mux/mux-adg792a.c b/drivers/mux/mux-adg792a.c
deleted file mode 100644
index 12aa221ab90d..000000000000
--- a/drivers/mux/mux-adg792a.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * Multiplexer driver for Analog Devices ADG792A/G Triple 4:1 mux
- *
- * Copyright (C) 2017 Axentia Technologies AB
- *
- * Author: Peter Rosin <peda@axentia.se>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/err.h>
-#include <linux/i2c.h>
-#include <linux/module.h>
-#include <linux/mux/driver.h>
-#include <linux/property.h>
-
-#define ADG792A_LDSW BIT(0)
-#define ADG792A_RESETB BIT(1)
-#define ADG792A_DISABLE(mux) (0x50 | (mux))
-#define ADG792A_DISABLE_ALL (0x5f)
-#define ADG792A_MUX(mux, state) (0xc0 | (((mux) + 1) << 2) | (state))
-#define ADG792A_MUX_ALL(state) (0xc0 | (state))
-
-static int adg792a_write_cmd(struct i2c_client *i2c, u8 cmd, int reset)
-{
- u8 data = ADG792A_RESETB | ADG792A_LDSW;
-
- /* ADG792A_RESETB is active low, the chip resets when it is zero. */
- if (reset)
- data &= ~ADG792A_RESETB;
-
- return i2c_smbus_write_byte_data(i2c, cmd, data);
-}
-
-static int adg792a_set(struct mux_control *mux, int state)
-{
- struct i2c_client *i2c = to_i2c_client(mux->chip->dev.parent);
- u8 cmd;
-
- if (mux->chip->controllers == 1) {
- /* parallel mux controller operation */
- if (state == MUX_IDLE_DISCONNECT)
- cmd = ADG792A_DISABLE_ALL;
- else
- cmd = ADG792A_MUX_ALL(state);
- } else {
- unsigned int controller = mux_control_get_index(mux);
-
- if (state == MUX_IDLE_DISCONNECT)
- cmd = ADG792A_DISABLE(controller);
- else
- cmd = ADG792A_MUX(controller, state);
- }
-
- return adg792a_write_cmd(i2c, cmd, 0);
-}
-
-static const struct mux_control_ops adg792a_ops = {
- .set = adg792a_set,
-};
-
-static int adg792a_probe(struct i2c_client *i2c,
- const struct i2c_device_id *id)
-{
- struct device *dev = &i2c->dev;
- struct mux_chip *mux_chip;
- s32 idle_state[3];
- u32 cells;
- int ret;
- int i;
-
- if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return -ENODEV;
-
- ret = device_property_read_u32(dev, "#mux-control-cells", &cells);
- if (ret < 0)
- return ret;
- if (cells >= 2)
- return -EINVAL;
-
- mux_chip = devm_mux_chip_alloc(dev, cells ? 3 : 1, 0);
- if (IS_ERR(mux_chip))
- return PTR_ERR(mux_chip);
-
- mux_chip->ops = &adg792a_ops;
-
- ret = adg792a_write_cmd(i2c, ADG792A_DISABLE_ALL, 1);
- if (ret < 0)
- return ret;
-
- ret = device_property_read_u32_array(dev, "idle-state",
- (u32 *)idle_state,
- mux_chip->controllers);
- if (ret < 0) {
- idle_state[0] = MUX_IDLE_AS_IS;
- idle_state[1] = MUX_IDLE_AS_IS;
- idle_state[2] = MUX_IDLE_AS_IS;
- }
-
- for (i = 0; i < mux_chip->controllers; ++i) {
- struct mux_control *mux = &mux_chip->mux[i];
-
- mux->states = 4;
-
- switch (idle_state[i]) {
- case MUX_IDLE_DISCONNECT:
- case MUX_IDLE_AS_IS:
- case 0 ... 4:
- mux->idle_state = idle_state[i];
- break;
- default:
- dev_err(dev, "invalid idle-state %d\n", idle_state[i]);
- return -EINVAL;
- }
- }
-
- ret = devm_mux_chip_register(dev, mux_chip);
- if (ret < 0)
- return ret;
-
- if (cells)
- dev_info(dev, "3x single pole quadruple throw muxes registered\n");
- else
- dev_info(dev, "triple pole quadruple throw mux registered\n");
-
- return 0;
-}
-
-static const struct i2c_device_id adg792a_id[] = {
- { .name = "adg792a", },
- { .name = "adg792g", },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, adg792a_id);
-
-static const struct of_device_id adg792a_of_match[] = {
- { .compatible = "adi,adg792a", },
- { .compatible = "adi,adg792g", },
- { }
-};
-MODULE_DEVICE_TABLE(of, adg792a_of_match);
-
-static struct i2c_driver adg792a_driver = {
- .driver = {
- .name = "adg792a",
- .of_match_table = of_match_ptr(adg792a_of_match),
- },
- .probe = adg792a_probe,
- .id_table = adg792a_id,
-};
-module_i2c_driver(adg792a_driver);
-
-MODULE_DESCRIPTION("Analog Devices ADG792A/G Triple 4:1 mux driver");
-MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
-MODULE_LICENSE("GPL v2");