6 files changed, 378 insertions, 309 deletions

diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index e8ee7ec9ff6d..2c4851a35308 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -256,6 +256,9 @@ config PCM990_DISPLAY_NONE
 
 endchoice
 
+config MACH_AM200EPD
+        depends on MACH_GUMSTIX_F
+        bool "Enable AM200EPD board support"
 
 config PXA_EZX
         bool "Motorola EZX Platform"
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 99ecbe7f8506..ccbe1b08f88e 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_CPU_PXA930)	+= pxa930.o
 
 # Specific board support
 obj-$(CONFIG_ARCH_GUMSTIX)      += gumstix.o
+obj-$(CONFIG_MACH_AM200EPD)     += am200epd.o
 obj-$(CONFIG_ARCH_LUBBOCK)      += lubbock.o
 obj-$(CONFIG_MACH_LOGICPD_PXA270) += lpd270.o
 obj-$(CONFIG_MACH_MAINSTONE)    += mainstone.o
diff --git a/arch/arm/mach-pxa/am200epd.c b/arch/arm/mach-pxa/am200epd.c
new file mode 100644
index 000000000000..b965085a37b9
--- /dev/null
+++ b/arch/arm/mach-pxa/am200epd.c
@@ -0,0 +1,374 @@
+/*
+ * am200epd.c -- Platform device for AM200 EPD kit
+ *
+ * Copyright (C) 2008, Jaya Kumar
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
+ *
+ * This work was made possible by help and equipment support from E-Ink
+ * Corporation. http://support.eink.com/community
+ *
+ * This driver is written to be used with the Metronome display controller.
+ * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
+ * Vizplex EPD on a Gumstix board using the Lyre interface board.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <mach/pxafb.h>
+
+#include <video/metronomefb.h>
+
+static unsigned int panel_type = 6;
+static struct platform_device *am200_device;
+static struct metronome_board am200_board;
+
+static struct pxafb_mode_info am200_fb_mode_9inch7 = {
+        .pixclock       = 40000,
+        .xres           = 1200,
+        .yres           = 842,
+        .bpp            = 16,
+        .hsync_len      = 2,
+        .left_margin    = 2,
+        .right_margin   = 2,
+        .vsync_len      = 1,
+        .upper_margin   = 2,
+        .lower_margin   = 25,
+        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mode_info am200_fb_mode_8inch = {
+        .pixclock       = 40000,
+        .xres           = 1088,
+        .yres           = 791,
+        .bpp            = 16,
+        .hsync_len      = 28,
+        .left_margin    = 8,
+        .right_margin   = 30,
+        .vsync_len      = 8,
+        .upper_margin   = 10,
+        .lower_margin   = 8,
+        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mode_info am200_fb_mode_6inch = {
+        .pixclock       = 40189,
+        .xres           = 832,
+        .yres           = 622,
+        .bpp            = 16,
+        .hsync_len      = 28,
+        .left_margin    = 34,
+        .right_margin   = 34,
+        .vsync_len      = 25,
+        .upper_margin   = 0,
+        .lower_margin   = 2,
+        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
+};
+
+static struct pxafb_mach_info am200_fb_info = {
+        .modes          = &am200_fb_mode_6inch,
+        .num_modes      = 1,
+        .lcd_conn       = LCD_TYPE_COLOR_TFT | LCD_PCLK_EDGE_FALL |
+                          LCD_AC_BIAS_FREQ(24),
+};
+
+/* register offsets for gpio control */
+#define LED_GPIO_PIN 51
+#define STDBY_GPIO_PIN 48
+#define RST_GPIO_PIN 49
+#define RDY_GPIO_PIN 32
+#define ERR_GPIO_PIN 17
+#define PCBPWR_GPIO_PIN 16
+static int gpios[] = { LED_GPIO_PIN , STDBY_GPIO_PIN , RST_GPIO_PIN,
+                        RDY_GPIO_PIN, ERR_GPIO_PIN, PCBPWR_GPIO_PIN };
+static char *gpio_names[] = { "LED" , "STDBY" , "RST", "RDY", "ERR", "PCBPWR" };
+
+static int am200_init_gpio_regs(struct metronomefb_par *par)
+{
+        int i;
+        int err;
+
+        for (i = 0; i < ARRAY_SIZE(gpios); i++) {
+                err = gpio_request(gpios[i], gpio_names[i]);
+                if (err) {
+                        dev_err(&am200_device->dev, "failed requesting "
+                                "gpio %s, err=%d\n", gpio_names[i], err);
+                        goto err_req_gpio;
+                }
+        }
+
+        gpio_direction_output(LED_GPIO_PIN, 0);
+        gpio_direction_output(STDBY_GPIO_PIN, 0);
+        gpio_direction_output(RST_GPIO_PIN, 0);
+
+        gpio_direction_input(RDY_GPIO_PIN);
+        gpio_direction_input(ERR_GPIO_PIN);
+
+        gpio_direction_output(PCBPWR_GPIO_PIN, 0);
+
+        return 0;
+
+err_req_gpio:
+        while (i > 0)
+                gpio_free(gpios[i--]);
+
+        return err;
+}
+
+static void am200_cleanup(struct metronomefb_par *par)
+{
+        int i;
+
+        free_irq(IRQ_GPIO(RDY_GPIO_PIN), par);
+
+        for (i = 0; i < ARRAY_SIZE(gpios); i++)
+                gpio_free(gpios[i]);
+}
+
+static int am200_share_video_mem(struct fb_info *info)
+{
+        /* rough check if this is our desired fb and not something else */
+        if ((info->var.xres != am200_fb_info.modes->xres)
+                || (info->var.yres != am200_fb_info.modes->yres))
+                return 0;
+
+        /* we've now been notified that we have our new fb */
+        am200_board.metromem = info->screen_base;
+        am200_board.host_fbinfo = info;
+
+        /* try to refcount host drv since we are the consumer after this */
+        if (!try_module_get(info->fbops->owner))
+                return -ENODEV;
+
+        return 0;
+}
+
+static int am200_unshare_video_mem(struct fb_info *info)
+{
+        dev_dbg(&am200_device->dev, "ENTER %s\n", __func__);
+
+        if (info != am200_board.host_fbinfo)
+                return 0;
+
+        module_put(am200_board.host_fbinfo->fbops->owner);
+        return 0;
+}
+
+static int am200_fb_notifier_callback(struct notifier_block *self,
+                                 unsigned long event, void *data)
+{
+        struct fb_event *evdata = data;
+        struct fb_info *info = evdata->info;
+
+        dev_dbg(&am200_device->dev, "ENTER %s\n", __func__);
+
+        if (event == FB_EVENT_FB_REGISTERED)
+                return am200_share_video_mem(info);
+        else if (event == FB_EVENT_FB_UNREGISTERED)
+                return am200_unshare_video_mem(info);
+
+        return 0;
+}
+
+static struct notifier_block am200_fb_notif = {
+        .notifier_call = am200_fb_notifier_callback,
+};
+
+/* this gets called as part of our init. these steps must be done now so
+ * that we can use set_pxa_fb_info */
+static void __init am200_presetup_fb(void)
+{
+        int fw;
+        int fh;
+        int padding_size;
+        int totalsize;
+
+        switch (panel_type) {
+        case 6:
+                am200_fb_info.modes = &am200_fb_mode_6inch;
+                break;
+        case 8:
+                am200_fb_info.modes = &am200_fb_mode_8inch;
+                break;
+        case 97:
+                am200_fb_info.modes = &am200_fb_mode_9inch7;
+                break;
+        default:
+                dev_err(&am200_device->dev, "invalid panel_type selection,"
+                                                " setting to 6\n");
+                am200_fb_info.modes = &am200_fb_mode_6inch;
+                break;
+        }
+
+        /* the frame buffer is divided as follows:
+        command | CRC | padding
+        16kb waveform data | CRC | padding
+        image data | CRC
+        */
+
+        fw = am200_fb_info.modes->xres;
+        fh = am200_fb_info.modes->yres;
+
+        /* waveform must be 16k + 2 for checksum */
+        am200_board.wfm_size = roundup(16*1024 + 2, fw);
+
+        padding_size = PAGE_SIZE + (4 * fw);
+
+        /* total is 1 cmd , 1 wfm, padding and image */
+        totalsize = fw + am200_board.wfm_size + padding_size + (fw*fh);
+
+        /* save this off because we're manipulating fw after this and
+         * we'll need it when we're ready to setup the framebuffer */
+        am200_board.fw = fw;
+        am200_board.fh = fh;
+
+        /* the reason we do this adjustment is because we want to acquire
+         * more framebuffer memory without imposing custom awareness on the
+         * underlying pxafb driver */
+        am200_fb_info.modes->yres = DIV_ROUND_UP(totalsize, fw);
+
+        /* we divide since we told the LCD controller we're 16bpp */
+        am200_fb_info.modes->xres /= 2;
+
+        set_pxa_fb_info(&am200_fb_info);
+
+}
+
+/* this gets called by metronomefb as part of its init, in our case, we
+ * have already completed initial framebuffer init in presetup_fb so we
+ * can just setup the fb access pointers */
+static int am200_setup_fb(struct metronomefb_par *par)
+{
+        int fw;
+        int fh;
+
+        fw = am200_board.fw;
+        fh = am200_board.fh;
+
+        /* metromem was set up by the notifier in share_video_mem so now
+         * we can use its value to calculate the other entries */
+        par->metromem_cmd = (struct metromem_cmd *) am200_board.metromem;
+        par->metromem_wfm = am200_board.metromem + fw;
+        par->metromem_img = par->metromem_wfm + am200_board.wfm_size;
+        par->metromem_img_csum = (u16 *) (par->metromem_img + (fw * fh));
+        par->metromem_dma = am200_board.host_fbinfo->fix.smem_start;
+
+        return 0;
+}
+
+static int am200_get_panel_type(void)
+{
+        return panel_type;
+}
+
+static irqreturn_t am200_handle_irq(int irq, void *dev_id)
+{
+        struct metronomefb_par *par = dev_id;
+
+        wake_up_interruptible(&par->waitq);
+        return IRQ_HANDLED;
+}
+
+static int am200_setup_irq(struct fb_info *info)
+{
+        int ret;
+
+        ret = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am200_handle_irq,
+                                IRQF_DISABLED|IRQF_TRIGGER_FALLING,
+                                "AM200", info->par);
+        if (ret)
+                dev_err(&am200_device->dev, "request_irq failed: %d\n", ret);
+
+        return ret;
+}
+
+static void am200_set_rst(struct metronomefb_par *par, int state)
+{
+        gpio_set_value(RST_GPIO_PIN, state);
+}
+
+static void am200_set_stdby(struct metronomefb_par *par, int state)
+{
+        gpio_set_value(STDBY_GPIO_PIN, state);
+}
+
+static int am200_wait_event(struct metronomefb_par *par)
+{
+        return wait_event_timeout(par->waitq, gpio_get_value(RDY_GPIO_PIN), HZ);
+}
+
+static int am200_wait_event_intr(struct metronomefb_par *par)
+{
+        return wait_event_interruptible_timeout(par->waitq,
+                                        gpio_get_value(RDY_GPIO_PIN), HZ);
+}
+
+static struct metronome_board am200_board = {
+        .owner                  = THIS_MODULE,
+        .setup_irq              = am200_setup_irq,
+        .setup_io               = am200_init_gpio_regs,
+        .setup_fb               = am200_setup_fb,
+        .set_rst                = am200_set_rst,
+        .set_stdby              = am200_set_stdby,
+        .met_wait_event         = am200_wait_event,
+        .met_wait_event_intr    = am200_wait_event_intr,
+        .get_panel_type         = am200_get_panel_type,
+        .cleanup                = am200_cleanup,
+};
+
+static int __init am200_init(void)
+{
+        int ret;
+
+        /* before anything else, we request notification for any fb
+         * creation events */
+        fb_register_client(&am200_fb_notif);
+
+        /* request our platform independent driver */
+        request_module("metronomefb");
+
+        am200_device = platform_device_alloc("metronomefb", -1);
+        if (!am200_device)
+                return -ENOMEM;
+
+        /* the am200_board that will be seen by metronomefb is a copy */
+        platform_device_add_data(am200_device, &am200_board,
+                                        sizeof(am200_board));
+
+        /* this _add binds metronomefb to am200. metronomefb refcounts am200 */
+        ret = platform_device_add(am200_device);
+
+        if (ret) {
+                platform_device_put(am200_device);
+                fb_unregister_client(&am200_fb_notif);
+                return ret;
+        }
+
+        am200_presetup_fb();
+
+        return 0;
+}
+
+module_param(panel_type, uint, 0);
+MODULE_PARM_DESC(panel_type, "Select the panel type: 6, 8, 97");
+
+module_init(am200_init);
+
+MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
+MODULE_AUTHOR("Jaya Kumar");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 6fd4a2f63cf8..d85a74c64b54 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1969,19 +1969,6 @@ config FB_XILINX
           framebuffer. ML300 carries a 640*480 LCD display on the board,
           ML403 uses a standard DB15 VGA connector.
 
-config FB_AM200EPD
-       tristate "AM-200 E-Ink EPD devkit support"
-       depends on FB && ARCH_PXA && MMU
-       select FB_SYS_FILLRECT
-       select FB_SYS_COPYAREA
-       select FB_SYS_IMAGEBLIT
-       select FB_SYS_FOPS
-       select FB_DEFERRED_IO
-       select FB_METRONOME
-       help
-         This enables support for the Metronome display controller used on
-         the E-Ink AM-200 EPD devkit.
-
 config FB_COBALT
         tristate "Cobalt server LCD frame buffer support"
         depends on FB && MIPS_COBALT
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index a6b55297a7fb..ad0330bf9be3 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_FB_DEFERRED_IO)   += fb_defio.o
 
 # Hardware specific drivers go first
 obj-$(CONFIG_FB_AMIGA)            += amifb.o c2p.o
-obj-$(CONFIG_FB_AM200EPD)         += am200epd.o
 obj-$(CONFIG_FB_ARC)              += arcfb.o
 obj-$(CONFIG_FB_CLPS711X)         += clps711xfb.o
 obj-$(CONFIG_FB_CYBER2000)        += cyber2000fb.o
diff --git a/drivers/video/am200epd.c b/drivers/video/am200epd.c
deleted file mode 100644
index 0c35b8b0160e..000000000000
--- a/drivers/video/am200epd.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * linux/drivers/video/am200epd.c -- Platform device for AM200 EPD kit
- *
- * Copyright (C) 2008, Jaya Kumar
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for
- * more details.
- *
- * Layout is based on skeletonfb.c by James Simmons and Geert Uytterhoeven.
- *
- * This work was made possible by help and equipment support from E-Ink
- * Corporation. http://support.eink.com/community
- *
- * This driver is written to be used with the Metronome display controller.
- * on the AM200 EPD prototype kit/development kit with an E-Ink 800x600
- * Vizplex EPD on a Gumstix board using the Lyre interface board.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/list.h>
-#include <linux/uaccess.h>
-#include <linux/irq.h>
-
-#include <video/metronomefb.h>
-
-#include <mach/pxa-regs.h>
-
-/* register offsets for gpio control */
-#define LED_GPIO_PIN 51
-#define STDBY_GPIO_PIN 48
-#define RST_GPIO_PIN 49
-#define RDY_GPIO_PIN 32
-#define ERR_GPIO_PIN 17
-#define PCBPWR_GPIO_PIN 16
-
-#define AF_SEL_GPIO_N 0x3
-#define GAFR0_U_OFFSET(pin) ((pin - 16) * 2)
-#define GAFR1_L_OFFSET(pin) ((pin - 32) * 2)
-#define GAFR1_U_OFFSET(pin) ((pin - 48) * 2)
-#define GPDR1_OFFSET(pin) (pin - 32)
-#define GPCR1_OFFSET(pin) (pin - 32)
-#define GPSR1_OFFSET(pin) (pin - 32)
-#define GPCR0_OFFSET(pin) (pin)
-#define GPSR0_OFFSET(pin) (pin)
-
-static void am200_set_gpio_output(int pin, int val)
-{
-        u8 index;
-
-        index = pin >> 4;
-
-        switch (index) {
-        case 1:
-                if (val)
-                        GPSR0 |= (1 << GPSR0_OFFSET(pin));
-                else
-                        GPCR0 |= (1 << GPCR0_OFFSET(pin));
-                break;
-        case 2:
-                break;
-        case 3:
-                if (val)
-                        GPSR1 |= (1 << GPSR1_OFFSET(pin));
-                else
-                        GPCR1 |= (1 << GPCR1_OFFSET(pin));
-                break;
-        default:
-                printk(KERN_ERR "unimplemented\n");
-        }
-}
-
-static void __devinit am200_init_gpio_pin(int pin, int dir)
-{
-        u8 index;
-        /* dir 0 is output, 1 is input
-        - do 2 things here:
-        - set gpio alternate function to standard gpio
-        - set gpio direction to input or output  */
-
-        index = pin >> 4;
-        switch (index) {
-        case 1:
-                GAFR0_U &= ~(AF_SEL_GPIO_N << GAFR0_U_OFFSET(pin));
-
-                if (dir)
-                        GPDR0 &= ~(1 << pin);
-                else
-                        GPDR0 |= (1 << pin);
-                break;
-        case 2:
-                GAFR1_L &= ~(AF_SEL_GPIO_N << GAFR1_L_OFFSET(pin));
-
-                if (dir)
-                        GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
-                else
-                        GPDR1 |= (1 << GPDR1_OFFSET(pin));
-                break;
-        case 3:
-                GAFR1_U &= ~(AF_SEL_GPIO_N << GAFR1_U_OFFSET(pin));
-
-                if (dir)
-                        GPDR1 &= ~(1 << GPDR1_OFFSET(pin));
-                else
-                        GPDR1 |= (1 << GPDR1_OFFSET(pin));
-                break;
-        default:
-                printk(KERN_ERR "unimplemented\n");
-        }
-}
-
-static void am200_init_gpio_regs(struct metronomefb_par *par)
-{
-        am200_init_gpio_pin(LED_GPIO_PIN, 0);
-        am200_set_gpio_output(LED_GPIO_PIN, 0);
-
-        am200_init_gpio_pin(STDBY_GPIO_PIN, 0);
-        am200_set_gpio_output(STDBY_GPIO_PIN, 0);
-
-        am200_init_gpio_pin(RST_GPIO_PIN, 0);
-        am200_set_gpio_output(RST_GPIO_PIN, 0);
-
-        am200_init_gpio_pin(RDY_GPIO_PIN, 1);
-
-        am200_init_gpio_pin(ERR_GPIO_PIN, 1);
-
-        am200_init_gpio_pin(PCBPWR_GPIO_PIN, 0);
-        am200_set_gpio_output(PCBPWR_GPIO_PIN, 0);
-}
-
-static void am200_disable_lcd_controller(struct metronomefb_par *par)
-{
-        LCSR = 0xffffffff;      /* Clear LCD Status Register */
-        LCCR0 |= LCCR0_DIS;     /* Disable LCD Controller */
-
-        /* we reset and just wait for things to settle */
-        msleep(200);
-}
-
-static void am200_enable_lcd_controller(struct metronomefb_par *par)
-{
-        LCSR = 0xffffffff;
-        FDADR0 = par->metromem_desc_dma;
-        LCCR0 |= LCCR0_ENB;
-}
-
-static void am200_init_lcdc_regs(struct metronomefb_par *par)
-{
-        /* here we do:
-        - disable the lcd controller
-        - setup lcd control registers
-        - setup dma descriptor
-        - reenable lcd controller
-        */
-
-        /* disable the lcd controller */
-        am200_disable_lcd_controller(par);
-
-        /* setup lcd control registers */
-        LCCR0 = LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | LCCR0_PAS
-                | LCCR0_QDM | LCCR0_BM | LCCR0_OUM;
-
-        LCCR1 = (par->info->var.xres/2 - 1) /* pixels per line */
-                | (27 << 10) /* hsync pulse width - 1 */
-                | (33 << 16) /* eol pixel count */
-                | (33 << 24); /* bol pixel count */
-
-        LCCR2 = (par->info->var.yres - 1) /* lines per panel */
-                | (24 << 10) /* vsync pulse width - 1 */
-                | (2 << 16) /* eof pixel count */
-                | (0 << 24); /* bof pixel count */
-
-        LCCR3 = 2 /* pixel clock divisor */
-                | (24 << 8) /* AC Bias pin freq */
-                | LCCR3_16BPP /* BPP */
-                | LCCR3_PCP;  /* PCP falling edge */
-
-}
-
-static void am200_post_dma_setup(struct metronomefb_par *par)
-{
-        par->metromem_desc->mFDADR0 = par->metromem_desc_dma;
-        par->metromem_desc->mFSADR0 = par->metromem_dma;
-        par->metromem_desc->mFIDR0 = 0;
-        par->metromem_desc->mLDCMD0 = par->info->var.xres
-                                        * par->info->var.yres;
-        am200_enable_lcd_controller(par);
-}
-
-static void am200_free_irq(struct fb_info *info)
-{
-        free_irq(IRQ_GPIO(RDY_GPIO_PIN), info);
-}
-
-static irqreturn_t am200_handle_irq(int irq, void *dev_id)
-{
-        struct fb_info *info = dev_id;
-        struct metronomefb_par *par = info->par;
-
-        wake_up_interruptible(&par->waitq);
-        return IRQ_HANDLED;
-}
-
-static int am200_setup_irq(struct fb_info *info)
-{
-        int retval;
-
-        retval = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am200_handle_irq,
-                                IRQF_DISABLED, "AM200", info);
-        if (retval) {
-                printk(KERN_ERR "am200epd: request_irq failed: %d\n", retval);
-                return retval;
-        }
-
-        return set_irq_type(IRQ_GPIO(RDY_GPIO_PIN), IRQ_TYPE_EDGE_FALLING);
-}
-
-static void am200_set_rst(struct metronomefb_par *par, int state)
-{
-        am200_set_gpio_output(RST_GPIO_PIN, state);
-}
-
-static void am200_set_stdby(struct metronomefb_par *par, int state)
-{
-        am200_set_gpio_output(STDBY_GPIO_PIN, state);
-}
-
-static int am200_wait_event(struct metronomefb_par *par)
-{
-        return wait_event_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static int am200_wait_event_intr(struct metronomefb_par *par)
-{
-        return wait_event_interruptible_timeout(par->waitq, (GPLR1 & 0x01), HZ);
-}
-
-static struct metronome_board am200_board = {
-        .owner                  = THIS_MODULE,
-        .free_irq               = am200_free_irq,
-        .setup_irq              = am200_setup_irq,
-        .init_gpio_regs         = am200_init_gpio_regs,
-        .init_lcdc_regs         = am200_init_lcdc_regs,
-        .post_dma_setup         = am200_post_dma_setup,
-        .set_rst                = am200_set_rst,
-        .set_stdby              = am200_set_stdby,
-        .met_wait_event         = am200_wait_event,
-        .met_wait_event_intr    = am200_wait_event_intr,
-};
-
-static struct platform_device *am200_device;
-
-static int __init am200_init(void)
-{
-        int ret;
-
-        /* request our platform independent driver */
-        request_module("metronomefb");
-
-        am200_device = platform_device_alloc("metronomefb", -1);
-        if (!am200_device)
-                return -ENOMEM;
-
-        platform_device_add_data(am200_device, &am200_board,
-                                        sizeof(am200_board));
-
-        /* this _add binds metronomefb to am200. metronomefb refcounts am200 */
-        ret = platform_device_add(am200_device);
-
-        if (ret)
-                platform_device_put(am200_device);
-
-        return ret;
-}
-
-static void __exit am200_exit(void)
-{
-        platform_device_unregister(am200_device);
-}
-
-module_init(am200_init);
-module_exit(am200_exit);
-
-MODULE_DESCRIPTION("board driver for am200 metronome epd kit");
-MODULE_AUTHOR("Jaya Kumar");
-MODULE_LICENSE("GPL");