118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
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/* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/ioctl.h>
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#include <linux/spinlock.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/version.h>
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#include "mdp4_wfd_writeback_util.h"
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#include "msm_fb.h"
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static int writeback_on(struct platform_device *pdev)
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{
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return 0;
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}
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static int writeback_off(struct platform_device *pdev)
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{
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return 0;
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}
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static int writeback_probe(struct platform_device *pdev)
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{
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struct msm_fb_data_type *mfd;
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struct platform_device *mdp_dev = NULL;
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struct msm_fb_panel_data *pdata = NULL;
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int rc = 0;
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WRITEBACK_MSG_ERR("Inside writeback_probe\n");
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mfd = platform_get_drvdata(pdev);
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if (!mfd)
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return -ENODEV;
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if (mfd->key != MFD_KEY)
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return -EINVAL;
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mdp_dev = platform_device_alloc("mdp", pdev->id);
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if (!mdp_dev)
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return -ENOMEM;
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/*
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* link to the latest pdev
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*/
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mfd->pdev = mdp_dev;
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mfd->dest = DISPLAY_LCD;
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if (platform_device_add_data
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(mdp_dev, pdev->dev.platform_data,
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sizeof(struct msm_fb_panel_data))) {
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pr_err("writeback_probe: "
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"platform_device_add_data failed!\n");
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platform_device_put(mdp_dev);
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return -ENOMEM;
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}
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pdata = (struct msm_fb_panel_data *)mdp_dev->dev.platform_data;
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pdata->on = writeback_on;
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pdata->off = writeback_off;
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pdata->next = pdev;
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/*
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* get/set panel specific fb info
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*/
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mfd->panel_info = pdata->panel_info;
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mfd->fb_imgType = MDP_RGB_565;
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platform_set_drvdata(mdp_dev, mfd);
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mfd->writeback_sdev.name = "wfd";
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rc = switch_dev_register(&mfd->writeback_sdev);
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if (rc) {
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pr_err("Failed to setup switch dev for writeback panel");
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return rc;
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}
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rc = platform_device_add(mdp_dev);
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if (rc) {
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WRITEBACK_MSG_ERR("failed to add device");
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platform_device_put(mdp_dev);
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return rc;
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}
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return rc;
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}
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static int writeback_remove(struct platform_device *pdev)
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{
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struct msm_fb_data_type *mfd = platform_get_drvdata(pdev);
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switch_dev_unregister(&mfd->writeback_sdev);
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return 0;
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}
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static struct platform_driver writeback_driver = {
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.probe = writeback_probe,
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.remove = writeback_remove,
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.driver = {
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.name = "writeback",
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},
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};
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static int __init writeback_driver_init(void)
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{
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int rc = 0;
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WRITEBACK_MSG_ERR("Inside writeback_driver_init\n");
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rc = platform_driver_register(&writeback_driver);
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return rc;
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}
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module_init(writeback_driver_init);
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