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| 2 | |
| 3 | * Common CPM GPIO wrapper for the CPM GPIO ports
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| 4 | *
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| 5 | * Author: Christophe Leroy <[email protected]>
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| 6 | *
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| 7 | * Copyright 2017 CS Systemes d'Information.
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| 8 | *
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| 9 |
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| 10 |
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| 11 | #include <linux/module.h>
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| 12 | #include <linux/of.h>
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| 13 | #include <linux/platform_device.h>
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| 14 |
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| 15 | #include <asm/cpm.h>
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| 16 | #ifdef CONFIG_8xx_GPIO
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| 17 | #include <asm/cpm1.h>
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| 18 | #endif
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| 19 |
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| 20 | static int cpm_gpio_probe(struct platform_device *ofdev)
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| 21 | {
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| 22 | struct device *dev = &ofdev->dev;
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| 23 | int (*gp_add)(struct device *dev) = of_device_get_match_data(dev);
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| 24 |
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| 25 | if (!gp_add)
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| 26 | return -ENODEV;
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| 27 |
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| 28 | return gp_add(dev);
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| 29 | }
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| 30 |
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| 31 | static const struct of_device_id cpm_gpio_match[] = {
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| 32 | #ifdef CONFIG_8xx_GPIO
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| 33 | {
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| 34 | .compatible = "fsl,cpm1-pario-bank-a",
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| 35 | .data = cpm1_gpiochip_add16,
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| 36 | },
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| 37 | {
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| 38 | .compatible = "fsl,cpm1-pario-bank-b",
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| 39 | .data = cpm1_gpiochip_add32,
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| 40 | },
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| 41 | {
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| 42 | .compatible = "fsl,cpm1-pario-bank-c",
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| 43 | .data = cpm1_gpiochip_add16,
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| 44 | },
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| 45 | {
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| 46 | .compatible = "fsl,cpm1-pario-bank-d",
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| 47 | .data = cpm1_gpiochip_add16,
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| 48 | },
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| 49 |
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| 50 | {
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| 51 | .compatible = "fsl,cpm1-pario-bank-e",
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| 52 | .data = cpm2_gpiochip_add32,
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| 53 | },
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| 54 | #endif
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| 55 | {
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| 56 | .compatible = "fsl,cpm2-pario-bank",
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| 57 | .data = cpm2_gpiochip_add32,
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| 58 | },
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| 59 | {},
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| 60 | };
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| 61 | MODULE_DEVICE_TABLE(of, cpm_gpio_match);
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| 62 |
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| 63 | static struct platform_driver cpm_gpio_driver = {
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| 64 | .probe = cpm_gpio_probe,
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| 65 | .driver = {
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| 66 | .name = "cpm-gpio",
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| 67 | .of_match_table = cpm_gpio_match,
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| 68 | },
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| 69 | };
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| 70 |
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| 71 | static int __init cpm_gpio_init(void)
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| 72 | {
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| 73 | return platform_driver_register(&cpm_gpio_driver);
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| 74 | }
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| 75 | arch_initcall(cpm_gpio_init);
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| 76 |
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| 77 | MODULE_AUTHOR("Christophe Leroy <[email protected]>");
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| 78 | MODULE_DESCRIPTION("Driver for CPM GPIO");
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| 79 | MODULE_LICENSE("GPL");
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| 80 | MODULE_ALIAS("platform:cpm-gpio");
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