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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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| 1 | 2 | /* |
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| 2 | 3 | * Copyright Intel Corporation (C) 2014-2016. All Rights Reserved |
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| 3 | | - * |
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| 4 | | - * This program is free software; you can redistribute it and/or modify it |
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| 5 | | - * under the terms and conditions of the GNU General Public License, |
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| 6 | | - * version 2, as published by the Free Software Foundation. |
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| 7 | | - * |
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| 8 | | - * This program is distributed in the hope it will be useful, but WITHOUT |
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| 9 | | - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 10 | | - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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| 11 | | - * more details. |
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| 12 | | - * |
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| 13 | | - * You should have received a copy of the GNU General Public License along with |
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| 14 | | - * this program. If not, see <http://www.gnu.org/licenses/>. |
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| 15 | 4 | * |
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| 16 | 5 | * GPIO driver for Altera Arria10 MAX5 System Resource Chip |
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| 17 | 6 | * |
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| .. | .. |
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| 58 | 47 | static int altr_a10sr_gpio_direction_input(struct gpio_chip *gc, |
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| 59 | 48 | unsigned int nr) |
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| 60 | 49 | { |
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| 61 | | - if (nr >= (ALTR_A10SR_IN_VALID_RANGE_LO - ALTR_A10SR_LED_VALID_SHIFT)) |
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| 62 | | - return 0; |
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| 63 | | - return -EINVAL; |
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| 50 | + if (nr < (ALTR_A10SR_IN_VALID_RANGE_LO - ALTR_A10SR_LED_VALID_SHIFT)) |
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| 51 | + return -EINVAL; |
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| 52 | + |
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| 53 | + return 0; |
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| 64 | 54 | } |
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| 65 | 55 | |
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| 66 | 56 | static int altr_a10sr_gpio_direction_output(struct gpio_chip *gc, |
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| 67 | 57 | unsigned int nr, int value) |
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| 68 | 58 | { |
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| 69 | | - if (nr <= (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT)) { |
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| 70 | | - altr_a10sr_gpio_set(gc, nr, value); |
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| 71 | | - return 0; |
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| 72 | | - } |
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| 73 | | - return -EINVAL; |
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| 59 | + if (nr > (ALTR_A10SR_OUT_VALID_RANGE_HI - ALTR_A10SR_LED_VALID_SHIFT)) |
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| 60 | + return -EINVAL; |
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| 61 | + |
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| 62 | + altr_a10sr_gpio_set(gc, nr, value); |
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| 63 | + return 0; |
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| 74 | 64 | } |
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| 75 | 65 | |
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| 76 | 66 | static const struct gpio_chip altr_a10sr_gc = { |
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