diff options
Diffstat (limited to 'drivers/video/fbdev/msm/mddi_client_nt35399.c')
| -rw-r--r-- | drivers/video/fbdev/msm/mddi_client_nt35399.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/drivers/video/fbdev/msm/mddi_client_nt35399.c b/drivers/video/fbdev/msm/mddi_client_nt35399.c deleted file mode 100644 index f96df32e5509..000000000000 --- a/drivers/video/fbdev/msm/mddi_client_nt35399.c +++ /dev/null @@ -1,252 +0,0 @@ -/* drivers/video/msm_fb/mddi_client_nt35399.c - * - * Support for Novatek NT35399 MDDI client of Sapphire - * - * Copyright (C) 2008 HTC Incorporated - * Author: Solomon Chiu (solomon_chiu@htc.com) - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/sched.h> -#include <linux/gpio.h> -#include <linux/slab.h> -#include <linux/platform_data/video-msm_fb.h> - -static DECLARE_WAIT_QUEUE_HEAD(nt35399_vsync_wait); - -struct panel_info { - struct msm_mddi_client_data *client_data; - struct platform_device pdev; - struct msm_panel_data panel_data; - struct msmfb_callback *fb_callback; - struct work_struct panel_work; - struct workqueue_struct *fb_wq; - int nt35399_got_int; -}; - -static void -nt35399_request_vsync(struct msm_panel_data *panel_data, - struct msmfb_callback *callback) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - - panel->fb_callback = callback; - if (panel->nt35399_got_int) { - panel->nt35399_got_int = 0; - client_data->activate_link(client_data); /* clears interrupt */ - } -} - -static void nt35399_wait_vsync(struct msm_panel_data *panel_data) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - - if (panel->nt35399_got_int) { - panel->nt35399_got_int = 0; - client_data->activate_link(client_data); /* clears interrupt */ - } - - if (wait_event_timeout(nt35399_vsync_wait, panel->nt35399_got_int, - HZ/2) == 0) - printk(KERN_ERR "timeout waiting for VSYNC\n"); - - panel->nt35399_got_int = 0; - /* interrupt clears when screen dma starts */ -} - -static int nt35399_suspend(struct msm_panel_data *panel_data) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - - struct msm_mddi_bridge_platform_data *bridge_data = - client_data->private_client_data; - int ret; - - ret = bridge_data->uninit(bridge_data, client_data); - if (ret) { - printk(KERN_INFO "mddi nt35399 client: non zero return from " - "uninit\n"); - return ret; - } - client_data->suspend(client_data); - return 0; -} - -static int nt35399_resume(struct msm_panel_data *panel_data) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - - struct msm_mddi_bridge_platform_data *bridge_data = - client_data->private_client_data; - int ret; - - client_data->resume(client_data); - ret = bridge_data->init(bridge_data, client_data); - if (ret) - return ret; - return 0; -} - -static int nt35399_blank(struct msm_panel_data *panel_data) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - struct msm_mddi_bridge_platform_data *bridge_data = - client_data->private_client_data; - - return bridge_data->blank(bridge_data, client_data); -} - -static int nt35399_unblank(struct msm_panel_data *panel_data) -{ - struct panel_info *panel = container_of(panel_data, struct panel_info, - panel_data); - struct msm_mddi_client_data *client_data = panel->client_data; - struct msm_mddi_bridge_platform_data *bridge_data = - client_data->private_client_data; - - return bridge_data->unblank(bridge_data, client_data); -} - -irqreturn_t nt35399_vsync_interrupt(int irq, void *data) -{ - struct panel_info *panel = data; - - panel->nt35399_got_int = 1; - - if (panel->fb_callback) { - panel->fb_callback->func(panel->fb_callback); - panel->fb_callback = NULL; - } - - wake_up(&nt35399_vsync_wait); - - return IRQ_HANDLED; -} - -static int setup_vsync(struct panel_info *panel, int init) -{ - int ret; - int gpio = 97; - unsigned int irq; - - if (!init) { - ret = 0; - goto uninit; - } - ret = gpio_request_one(gpio, GPIOF_IN, "vsync"); - if (ret) - goto err_request_gpio_failed; - - ret = irq = gpio_to_irq(gpio); - if (ret < 0) - goto err_get_irq_num_failed; - - ret = request_irq(irq, nt35399_vsync_interrupt, IRQF_TRIGGER_RISING, - "vsync", panel); - if (ret) - goto err_request_irq_failed; - - printk(KERN_INFO "vsync on gpio %d now %d\n", - gpio, gpio_get_value(gpio)); - return 0; - -uninit: - free_irq(gpio_to_irq(gpio), panel->client_data); -err_request_irq_failed: -err_get_irq_num_failed: - gpio_free(gpio); -err_request_gpio_failed: - return ret; -} - -static int mddi_nt35399_probe(struct platform_device *pdev) -{ - struct msm_mddi_client_data *client_data = pdev->dev.platform_data; - struct msm_mddi_bridge_platform_data *bridge_data = - client_data->private_client_data; - - int ret; - - struct panel_info *panel = devm_kzalloc(&pdev->dev, - sizeof(struct panel_info), - GFP_KERNEL); - - printk(KERN_DEBUG "%s: enter.\n", __func__); - - if (!panel) - return -ENOMEM; - platform_set_drvdata(pdev, panel); - - ret = setup_vsync(panel, 1); - if (ret) { - dev_err(&pdev->dev, "mddi_nt35399_setup_vsync failed\n"); - return ret; - } - - panel->client_data = client_data; - panel->panel_data.suspend = nt35399_suspend; - panel->panel_data.resume = nt35399_resume; - panel->panel_data.wait_vsync = nt35399_wait_vsync; - panel->panel_data.request_vsync = nt35399_request_vsync; - panel->panel_data.blank = nt35399_blank; - panel->panel_data.unblank = nt35399_unblank; - panel->panel_data.fb_data = &bridge_data->fb_data; - panel->panel_data.caps = 0; - - panel->pdev.name = "msm_panel"; - panel->pdev.id = pdev->id; - panel->pdev.resource = client_data->fb_resource; - panel->pdev.num_resources = 1; - panel->pdev.dev.platform_data = &panel->panel_data; - - if (bridge_data->init) - bridge_data->init(bridge_data, client_data); - - platform_device_register(&panel->pdev); - - return 0; -} - -static int mddi_nt35399_remove(struct platform_device *pdev) -{ - struct panel_info *panel = platform_get_drvdata(pdev); - - setup_vsync(panel, 0); - return 0; -} - -static struct platform_driver mddi_client_0bda_8a47 = { - .probe = mddi_nt35399_probe, - .remove = mddi_nt35399_remove, - .driver = { .name = "mddi_c_0bda_8a47" }, -}; - -static int __init mddi_client_nt35399_init(void) -{ - return platform_driver_register(&mddi_client_0bda_8a47); -} - -module_init(mddi_client_nt35399_init); - |