Merge branch 'v3.16-next/cleanup-samsung' into v3.16-next/platform-exynos

1 files changed, 280 insertions, 0 deletions

diff --git a/drivers/video/fbdev/msm/mddi_client_toshiba.c b/drivers/video/fbdev/msm/mddi_client_toshiba.c
new file mode 100644
index 000000000000..061d7dfebbf3
--- /dev/null
+++ b/drivers/video/fbdev/msm/mddi_client_toshiba.c
@@ -0,0 +1,280 @@
+/* drivers/video/msm_fb/mddi_client_toshiba.c
+ *
+ * Support for Toshiba TC358720XBG mddi client devices which require no
+ * special initialization code.
+ *
+ * Copyright (C) 2007 Google Incorporated
+ *
+ * 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/gpio.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/platform_data/video-msm_fb.h>
+
+
+#define LCD_CONTROL_BLOCK_BASE 0x110000
+#define CMN         (LCD_CONTROL_BLOCK_BASE|0x10)
+#define INTFLG      (LCD_CONTROL_BLOCK_BASE|0x18)
+#define HCYCLE      (LCD_CONTROL_BLOCK_BASE|0x34)
+#define HDE_START   (LCD_CONTROL_BLOCK_BASE|0x3C)
+#define VPOS        (LCD_CONTROL_BLOCK_BASE|0xC0)
+#define MPLFBUF     (LCD_CONTROL_BLOCK_BASE|0x20)
+#define WAKEUP      (LCD_CONTROL_BLOCK_BASE|0x54)
+#define WSYN_DLY    (LCD_CONTROL_BLOCK_BASE|0x58)
+#define REGENB      (LCD_CONTROL_BLOCK_BASE|0x5C)
+
+#define BASE5 0x150000
+#define BASE6 0x160000
+#define BASE7 0x170000
+
+#define GPIOIEV     (BASE5 + 0x10)
+#define GPIOIE      (BASE5 + 0x14)
+#define GPIORIS     (BASE5 + 0x18)
+#define GPIOMIS     (BASE5 + 0x1C)
+#define GPIOIC      (BASE5 + 0x20)
+
+#define INTMASK     (BASE6 + 0x0C)
+#define INTMASK_VWAKEOUT (1U << 0)
+#define INTMASK_VWAKEOUT_ACTIVE_LOW (1U << 8)
+#define GPIOSEL     (BASE7 + 0x00)
+#define GPIOSEL_VWAKEINT (1U << 0)
+
+static DECLARE_WAIT_QUEUE_HEAD(toshiba_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 *toshiba_callback;
+        int toshiba_got_int;
+};
+
+
+static void toshiba_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->toshiba_callback = callback;
+        if (panel->toshiba_got_int) {
+                panel->toshiba_got_int = 0;
+                client_data->activate_link(client_data);
+        }
+}
+
+static void toshiba_clear_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;
+
+        client_data->activate_link(client_data);
+}
+
+static void toshiba_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->toshiba_got_int) {
+                panel->toshiba_got_int = 0;
+                client_data->activate_link(client_data); /* clears interrupt */
+        }
+        if (wait_event_timeout(toshiba_vsync_wait, panel->toshiba_got_int,
+                                HZ/2) == 0)
+                printk(KERN_ERR "timeout waiting for VSYNC\n");
+        panel->toshiba_got_int = 0;
+        /* interrupt clears when screen dma starts */
+}
+
+static int toshiba_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 toshiba client: non zero return from "
+                        "uninit\n");
+                return ret;
+        }
+        client_data->suspend(client_data);
+        return 0;
+}
+
+static int toshiba_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 toshiba_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 toshiba_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 toshiba_vsync_interrupt(int irq, void *data)
+{
+        struct panel_info *panel = data;
+
+        panel->toshiba_got_int = 1;
+        if (panel->toshiba_callback) {
+                panel->toshiba_callback->func(panel->toshiba_callback);
+                panel->toshiba_callback = 0;
+        }
+        wake_up(&toshiba_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, toshiba_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);
+err_request_irq_failed:
+err_get_irq_num_failed:
+        gpio_free(gpio);
+err_request_gpio_failed:
+        return ret;
+}
+
+static int mddi_toshiba_probe(struct platform_device *pdev)
+{
+        int ret;
+        struct msm_mddi_client_data *client_data = pdev->dev.platform_data;
+        struct msm_mddi_bridge_platform_data *bridge_data =
+                client_data->private_client_data;
+        struct panel_info *panel =
+                kzalloc(sizeof(struct panel_info), GFP_KERNEL);
+        if (!panel)
+                return -ENOMEM;
+        platform_set_drvdata(pdev, panel);
+
+        /* mddi_remote_write(mddi, 0, WAKEUP); */
+        client_data->remote_write(client_data, GPIOSEL_VWAKEINT, GPIOSEL);
+        client_data->remote_write(client_data, INTMASK_VWAKEOUT, INTMASK);
+
+        ret = setup_vsync(panel, 1);
+        if (ret) {
+                dev_err(&pdev->dev, "mddi_bridge_setup_vsync failed\n");
+                return ret;
+        }
+
+        panel->client_data = client_data;
+        panel->panel_data.suspend = toshiba_suspend;
+        panel->panel_data.resume = toshiba_resume;
+        panel->panel_data.wait_vsync = toshiba_wait_vsync;
+        panel->panel_data.request_vsync = toshiba_request_vsync;
+        panel->panel_data.clear_vsync = toshiba_clear_vsync;
+        panel->panel_data.blank = toshiba_blank;
+        panel->panel_data.unblank = toshiba_unblank;
+        panel->panel_data.fb_data =  &bridge_data->fb_data;
+        panel->panel_data.caps = MSMFB_CAP_PARTIAL_UPDATES;
+
+        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;
+        bridge_data->init(bridge_data, client_data);
+        platform_device_register(&panel->pdev);
+
+        return 0;
+}
+
+static int mddi_toshiba_remove(struct platform_device *pdev)
+{
+        struct panel_info *panel = platform_get_drvdata(pdev);
+
+        setup_vsync(panel, 0);
+        kfree(panel);
+        return 0;
+}
+
+static struct platform_driver mddi_client_d263_0000 = {
+        .probe = mddi_toshiba_probe,
+        .remove = mddi_toshiba_remove,
+        .driver = { .name = "mddi_c_d263_0000" },
+};
+
+static int __init mddi_client_toshiba_init(void)
+{
+        platform_driver_register(&mddi_client_d263_0000);
+        return 0;
+}
+
+module_init(mddi_client_toshiba_init);
+