| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
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| 2 | /* |
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| 3 | * TI PWM Subsystem driver |
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| 4 | * |
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| 5 | * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ |
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| 6 | */ |
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| 7 | |
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| 8 | #include <linux/module.h> |
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| 9 | #include <linux/platform_device.h> |
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| 10 | #include <linux/io.h> |
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| 11 | #include <linux/err.h> |
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| 12 | #include <linux/pm_runtime.h> |
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| 13 | #include <linux/of_platform.h> |
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| 14 | |
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| 15 | static const struct of_device_id pwmss_of_match[] = { |
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| 16 | { .compatible = "ti,am33xx-pwmss" }, |
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| 17 | {}, |
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| 18 | }; |
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| 19 | MODULE_DEVICE_TABLE(of, pwmss_of_match); |
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| 20 | |
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| 21 | static int pwmss_probe(struct platform_device *pdev) |
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| 22 | { |
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| 23 | int ret; |
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| 24 | struct device_node *node = pdev->dev.of_node; |
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| 25 | |
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| 26 | pm_runtime_enable(dev: &pdev->dev); |
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| 27 | |
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| 28 | /* Populate all the child nodes here... */ |
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| 29 | ret = of_platform_populate(root: node, NULL, NULL, parent: &pdev->dev); |
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| 30 | if (ret) |
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| 31 | dev_err(&pdev->dev, "no child node found\n" ); |
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| 32 | |
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| 33 | return ret; |
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| 34 | } |
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| 35 | |
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| 36 | static void pwmss_remove(struct platform_device *pdev) |
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| 37 | { |
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| 38 | pm_runtime_disable(dev: &pdev->dev); |
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| 39 | } |
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| 40 | |
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| 41 | static struct platform_driver pwmss_driver = { |
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| 42 | .driver = { |
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| 43 | .name = "pwmss" , |
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| 44 | .of_match_table = pwmss_of_match, |
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| 45 | }, |
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| 46 | .probe = pwmss_probe, |
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| 47 | .remove_new = pwmss_remove, |
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| 48 | }; |
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| 49 | |
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| 50 | module_platform_driver(pwmss_driver); |
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| 51 | |
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| 52 | MODULE_DESCRIPTION("PWM Subsystem driver" ); |
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| 53 | MODULE_AUTHOR("Texas Instruments" ); |
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| 54 | MODULE_LICENSE("GPL" ); |
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| 55 | |
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