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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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1 | 2 | /* |
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2 | 3 | * ads7871 - driver for TI ADS7871 A/D converter |
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3 | 4 | * |
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4 | 5 | * Copyright (c) 2010 Paul Thomas <pthomas8589@gmail.com> |
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5 | | - * |
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6 | | - * This program is distributed in the hope that it will be useful, |
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7 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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8 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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9 | | - * GNU General Public License for more details. |
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10 | | - * |
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11 | | - * This program is free software; you can redistribute it and/or modify |
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12 | | - * it under the terms of the GNU General Public License version 2 or |
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13 | | - * later as publishhed by the Free Software Foundation. |
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14 | 6 | * |
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15 | 7 | * You need to have something like this in struct spi_board_info |
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16 | 8 | * { |
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.. | .. |
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96 | 88 | return spi_write(spi, tmp, sizeof(tmp)); |
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97 | 89 | } |
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98 | 90 | |
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99 | | -static ssize_t show_voltage(struct device *dev, |
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100 | | - struct device_attribute *da, char *buf) |
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| 91 | +static ssize_t voltage_show(struct device *dev, struct device_attribute *da, |
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| 92 | + char *buf) |
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101 | 93 | { |
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102 | 94 | struct ads7871_data *pdata = dev_get_drvdata(dev); |
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103 | 95 | struct spi_device *spi = pdata->spi; |
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.. | .. |
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138 | 130 | } |
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139 | 131 | } |
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140 | 132 | |
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141 | | -static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_voltage, NULL, 0); |
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142 | | -static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_voltage, NULL, 1); |
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143 | | -static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_voltage, NULL, 2); |
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144 | | -static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_voltage, NULL, 3); |
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145 | | -static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_voltage, NULL, 4); |
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146 | | -static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_voltage, NULL, 5); |
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147 | | -static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_voltage, NULL, 6); |
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148 | | -static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_voltage, NULL, 7); |
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| 133 | +static SENSOR_DEVICE_ATTR_RO(in0_input, voltage, 0); |
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| 134 | +static SENSOR_DEVICE_ATTR_RO(in1_input, voltage, 1); |
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| 135 | +static SENSOR_DEVICE_ATTR_RO(in2_input, voltage, 2); |
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| 136 | +static SENSOR_DEVICE_ATTR_RO(in3_input, voltage, 3); |
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| 137 | +static SENSOR_DEVICE_ATTR_RO(in4_input, voltage, 4); |
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| 138 | +static SENSOR_DEVICE_ATTR_RO(in5_input, voltage, 5); |
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| 139 | +static SENSOR_DEVICE_ATTR_RO(in6_input, voltage, 6); |
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| 140 | +static SENSOR_DEVICE_ATTR_RO(in7_input, voltage, 7); |
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149 | 141 | |
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150 | 142 | static struct attribute *ads7871_attrs[] = { |
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151 | 143 | &sensor_dev_attr_in0_input.dev_attr.attr, |
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