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author | Peter Rosin <peda@axentia.se> | 2017-08-22 09:27:08 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-28 18:11:28 +0300 |
commit | 8f3addf1b451784104ba3593d80702b4815d5a94 (patch) | |
tree | d35e350095bb323a3e66b435b6f96edfa392b05f /drivers/mux/mux-adg792a.c | |
parent | d3cc8ca3ab6c1d78c26102870313fa36c48ea247 (diff) | |
download | linux-8f3addf1b451784104ba3593d80702b4815d5a94.tar.xz |
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.c | 157 |
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"); |