threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
113 lines
2.9 KiB
C
113 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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/******************************************************************************
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* INCLUDE LINUX HEADER
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******************************************************************************/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/cdev.h>
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#include <linux/platform_device.h>
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#include <linux/device.h>
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#include <linux/cdev.h>
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#include <linux/proc_fs.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/of_platform.h>
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#include <linux/of_irq.h>
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#include <linux/of_address.h>
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/******************************************************************************
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* INCLUDE LIBRARY
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******************************************************************************/
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/**************************************************************************
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* EXTERNAL VARIABLE
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**************************************************************************/
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/*************************************************************************
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* GLOBAL VARIABLE
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**************************************************************************/
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/**************************************************************************
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* EXTERNAL FUNCTION
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**************************************************************************/
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/* dummy interrupt handler for gcpu */
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static irqreturn_t gcpu_irq_handler(int irq, void *dev_id)
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{
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return IRQ_HANDLED;
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}
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/**************************************************************************
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* GCPU DRIVER INIT
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**************************************************************************/
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static int gcpu_probe(struct platform_device *pdev)
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{
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unsigned int gcpu_irq = 0;
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int ret = 0;
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/* register for GCPU */
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gcpu_irq = platform_get_irq(pdev, 0);
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pr_debug("[GCPU] irq_no: (%d)\n", gcpu_irq);
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ret = request_irq(gcpu_irq,
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(irq_handler_t)gcpu_irq_handler,
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IRQF_TRIGGER_LOW,
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"gcpu",
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NULL);
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if (ret != 0)
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pr_info("[GCPU] request irq %d fail %d\n", gcpu_irq, ret);
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else
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pr_debug("[GCPU] request irq (%d) succeed!!\n", gcpu_irq);
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return ret;
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}
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static int gcpu_remove(struct platform_device *dev)
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{
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return 0;
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}
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#ifdef CONFIG_OF
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static const struct of_device_id gcpu_of_ids[] = {
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{ .compatible = "mediatek,gcpu", },
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{}
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};
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#endif
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static struct platform_driver mtk_gcpu_driver = {
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.probe = gcpu_probe,
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.remove = gcpu_remove,
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.driver = {
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.name = "gcpu",
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.owner = THIS_MODULE,
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#ifdef CONFIG_OF
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.of_match_table = gcpu_of_ids,
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#endif
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},
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};
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static int __init gcpu_init(void)
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{
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int ret = 0;
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ret = platform_driver_register(&mtk_gcpu_driver);
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if (ret)
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pr_info("[GCPU] init FAIL, ret 0x%x!!!\n", ret);
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return ret;
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}
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module_init(gcpu_init);
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/**************************************************************************
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* EXPORT FUNCTION
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**************************************************************************/
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("MediaTek Inc.");
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MODULE_DESCRIPTION("Mediatek GCPU Module");
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