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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 | * i2c-algo-pca.c i2c driver algorithms for PCA9564 adapters |
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3 | 4 | * Copyright (C) 2004 Arcom Control Systems |
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4 | 5 | * Copyright (C) 2008 Pengutronix |
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5 | | - * |
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6 | | - * This program is free software; you can redistribute it and/or modify |
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7 | | - * it under the terms of the GNU General Public License as published by |
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8 | | - * the Free Software Foundation; either version 2 of the License, or |
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9 | | - * (at your option) any later version. |
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10 | | - * |
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11 | | - * This program is distributed in the hope that it will be useful, |
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12 | | - * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | | - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | | - * GNU General Public License for more details. |
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15 | 6 | */ |
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16 | 7 | |
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17 | 8 | #include <linux/kernel.h> |
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.. | .. |
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484 | 475 | /* To avoid integer overflow, use clock/100 for calculations */ |
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485 | 476 | clock = pca_clock(pca_data) / 100; |
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486 | 477 | |
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487 | | - if (pca_data->i2c_clock > 1000000) { |
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| 478 | + if (pca_data->i2c_clock > I2C_MAX_FAST_MODE_PLUS_FREQ) { |
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488 | 479 | mode = I2C_PCA_MODE_TURBO; |
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489 | 480 | min_tlow = 14; |
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490 | 481 | min_thi = 5; |
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491 | 482 | raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */ |
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492 | | - } else if (pca_data->i2c_clock > 400000) { |
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| 483 | + } else if (pca_data->i2c_clock > I2C_MAX_FAST_MODE_FREQ) { |
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493 | 484 | mode = I2C_PCA_MODE_FASTP; |
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494 | 485 | min_tlow = 17; |
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495 | 486 | min_thi = 9; |
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496 | 487 | raise_fall_time = 22; /* Raise 11e-8s, Fall 11e-8s */ |
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497 | | - } else if (pca_data->i2c_clock > 100000) { |
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| 488 | + } else if (pca_data->i2c_clock > I2C_MAX_STANDARD_MODE_FREQ) { |
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498 | 489 | mode = I2C_PCA_MODE_FAST; |
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499 | 490 | min_tlow = 44; |
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500 | 491 | min_thi = 20; |
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.. | .. |
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562 | 553 | } |
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563 | 554 | EXPORT_SYMBOL(i2c_pca_add_numbered_bus); |
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564 | 555 | |
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565 | | -MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>, " |
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566 | | - "Wolfram Sang <w.sang@pengutronix.de>"); |
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| 556 | +MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>"); |
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| 557 | +MODULE_AUTHOR("Wolfram Sang <kernel@pengutronix.de>"); |
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567 | 558 | MODULE_DESCRIPTION("I2C-Bus PCA9564/PCA9665 algorithm"); |
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568 | 559 | MODULE_LICENSE("GPL"); |
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569 | 560 | |
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