ENGR00131789-2 MXC FB:Support Seiko WVGA LCD panel driver

1) Add Seiko WVGA LCD panel driver Support.
2) Add fsl-devices.h headfile to ELCDIF FB driver and
   CLAA-WVGA LCD panel driver.

Signed-off-by: Liu Ying <b17645@freescale.com>

1 files changed, 241 insertions, 0 deletions

diff --git a/drivers/video/mxc/mxcfb_seiko_wvga.c b/drivers/video/mxc/mxcfb_seiko_wvga.c
new file mode 100644
index 000000000000..9b3e9fddafe7
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_seiko_wvga.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * 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.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb_seiko_wvga.c
+ *
+ * @brief MXC Frame buffer driver for SDC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/fsl_devices.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/mxcfb.h>
+#include <linux/regulator/consumer.h>
+#include <mach/hardware.h>
+
+static void lcd_poweron(void);
+static void lcd_poweroff(void);
+
+static struct platform_device *plcd_dev;
+static struct regulator *io_reg;
+static struct regulator *core_reg;
+static int lcd_on;
+
+static struct fb_videomode video_modes[] = {
+	{
+	 /* 800x480 @ 57 Hz , pixel clk @ 32MHz */
+	 "SEIKO-WVGA", 60, 800, 480, 29850, 99, 164, 33, 10, 10, 10,
+	 FB_SYNC_CLK_LAT_FALL,
+	 FB_VMODE_NONINTERLACED,
+	 0,},
+};
+
+static void lcd_init_fb(struct fb_info *info)
+{
+	struct fb_var_screeninfo var;
+
+	memset(&var, 0, sizeof(var));
+
+	fb_videomode_to_var(&var, &video_modes[0]);
+
+	var.activate = FB_ACTIVATE_ALL;
+	var.yres_virtual = var.yres * 3;
+
+	acquire_console_sem();
+	info->flags |= FBINFO_MISC_USEREVENT;
+	fb_set_var(info, &var);
+	info->flags &= ~FBINFO_MISC_USEREVENT;
+	release_console_sem();
+}
+
+static int lcd_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+	struct fb_event *event = v;
+
+	if (strcmp(event->info->fix.id, "mxc_elcdif_fb"))
+		return 0;
+
+	switch (val) {
+	case FB_EVENT_FB_REGISTERED:
+		lcd_init_fb(event->info);
+		fb_show_logo(event->info, 0);
+		lcd_poweron();
+		break;
+	case FB_EVENT_BLANK:
+		if ((event->info->var.xres != 800) ||
+		    (event->info->var.yres != 480)) {
+			break;
+		}
+		if (*((int *)event->data) == FB_BLANK_UNBLANK)
+			lcd_poweron();
+		else
+			lcd_poweroff();
+		break;
+	}
+	return 0;
+}
+
+static struct notifier_block nb = {
+	.notifier_call = lcd_fb_event,
+};
+
+/*!
+ * This function is called whenever the platform device is detected.
+ *
+ * @param	pdev	the platform device
+ *
+ * @return 	Returns 0 on SUCCESS and error on FAILURE.
+ */
+static int __devinit lcd_probe(struct platform_device *pdev)
+{
+	int i;
+	struct mxc_lcd_platform_data *plat = pdev->dev.platform_data;
+
+	if (plat) {
+		if (plat->reset)
+			plat->reset();
+
+		io_reg = regulator_get(&pdev->dev, plat->io_reg);
+		if (IS_ERR(io_reg))
+			io_reg = NULL;
+		core_reg = regulator_get(&pdev->dev, plat->core_reg);
+		if (!IS_ERR(core_reg))
+			regulator_set_voltage(io_reg, 1800000, 1800000);
+		else
+			core_reg = NULL;
+	}
+
+	for (i = 0; i < num_registered_fb; i++) {
+		if (strcmp(registered_fb[i]->fix.id, "mxc_elcdif_fb") == 0) {
+			lcd_init_fb(registered_fb[i]);
+			fb_show_logo(registered_fb[i], 0);
+			lcd_poweron();
+		}
+	}
+
+	fb_register_client(&nb);
+
+	plcd_dev = pdev;
+
+	return 0;
+}
+
+static int __devexit lcd_remove(struct platform_device *pdev)
+{
+	fb_unregister_client(&nb);
+	lcd_poweroff();
+	if (io_reg)
+		regulator_put(io_reg);
+	if (core_reg)
+		regulator_put(core_reg);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int lcd_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	return 0;
+}
+
+static int lcd_resume(struct platform_device *pdev)
+{
+	return 0;
+}
+#else
+#define lcd_suspend NULL
+#define lcd_resume NULL
+#endif
+
+/*!
+ * platform driver structure for SEIKO WVGA
+ */
+static struct platform_driver lcd_driver = {
+	.driver = {
+		   .name = "lcd_seiko"},
+	.probe = lcd_probe,
+	.remove = __devexit_p(lcd_remove),
+	.suspend = lcd_suspend,
+	.resume = lcd_resume,
+};
+
+/*
+ * Send Power
+ *
+ */
+static void lcd_poweron(void)
+{
+	if (lcd_on)
+		return;
+
+	dev_dbg(&plcd_dev->dev, "turning on LCD\n");
+	if (core_reg)
+		regulator_enable(core_reg);
+	if (io_reg)
+		regulator_enable(io_reg);
+	lcd_on = 1;
+}
+
+/*
+ * Send Power Off
+ *
+ */
+static void lcd_poweroff(void)
+{
+	lcd_on = 0;
+	dev_dbg(&plcd_dev->dev, "turning off LCD\n");
+	if (io_reg)
+		regulator_disable(io_reg);
+	if (core_reg)
+		regulator_disable(core_reg);
+}
+
+static int __init seiko_wvga_lcd_init(void)
+{
+	return platform_driver_register(&lcd_driver);
+}
+
+static void __exit seiko_wvga_lcd_exit(void)
+{
+	platform_driver_unregister(&lcd_driver);
+}
+
+module_init(seiko_wvga_lcd_init);
+module_exit(seiko_wvga_lcd_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("SEIKO WVGA LCD init driver");
+MODULE_LICENSE("GPL");