[s3c24xx] glamo-mmc: Limit clock rate.

[openwrt.git] / target / linux / s3c24xx / files-2.6.30 / drivers / mfd / glamo / glamo-fb.c

diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
index c3422ff..3d13dd2 100644 (file)
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-fb.c
@@ -22,23 +22,15 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/mm.h>
-#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/fb.h>
 #include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/dma-mapping.h>
-#include <linux/interrupt.h>
-#include <linux/workqueue.h>
-#include <linux/wait.h>
 #include <linux/platform_device.h>
-#include <linux/clk.h>
 #include <linux/spinlock.h>
 #include <linux/io.h>
-#include <linux/uaccess.h>
+#include <linux/mfd/glamo.h>
 
 #include <asm/div64.h>
 
@@ -69,7 +61,7 @@ struct glamofb_handle {
        struct resource *reg;
        struct resource *fb_res;
        char __iomem *base;
-       struct glamofb_platform_data *mach_info;
+       struct glamo_fb_platform_data *mach_info;
        char __iomem *cursor_addr;
        int cursor_on;
        u_int32_t pseudo_pal[16];
@@ -79,13 +71,8 @@ struct glamofb_handle {
        int output_enabled; /* 0 if the video output is disabled */
 };
 
-/* 'sibling' spi device for lcm init */
-static struct platform_device glamo_spi_dev = {
-       .name           = "glamo-lcm-spi",
-};
-
 static void glamo_output_enable(struct glamofb_handle *gfb) {
-               struct glamo_core *gcore = gfb->mach_info->glamo;
+               struct glamo_core *gcore = gfb->mach_info->core;
 
        if (gfb->output_enabled)
                return;
@@ -102,7 +89,7 @@ static void glamo_output_enable(struct glamofb_handle *gfb) {
 }
 
 static void glamo_output_disable(struct glamofb_handle *gfb) {
-       struct glamo_core *gcore = gfb->mach_info->glamo;
+       struct glamo_core *gcore = gfb->mach_info->core;
 
        if (!gfb->output_enabled)
                return;
@@ -171,8 +158,8 @@ static int glamofb_run_script(struct glamofb_handle *glamo,
 {
        int i;
 
-       if (glamo->mach_info->glamo->suspending) {
-               dev_err(&glamo->mach_info->glamo->pdev->dev,
+       if (glamo->mach_info->core->suspending) {
+               dev_err(&glamo->mach_info->core->pdev->dev,
                                "IGNORING glamofb_run_script while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -197,8 +184,8 @@ static int glamofb_check_var(struct fb_var_screeninfo *var,
 {
        struct glamofb_handle *glamo = info->par;
 
-       if (glamo->mach_info->glamo->suspending) {
-               dev_err(&glamo->mach_info->glamo->pdev->dev,
+       if (glamo->mach_info->core->suspending) {
+               dev_err(&glamo->mach_info->core->pdev->dev,
                                "IGNORING glamofb_check_var while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -285,8 +272,8 @@ static void __rotate_lcd(struct glamofb_handle *glamo, __u32 rotation)
 {
        int glamo_rot;
 
-       if (glamo->mach_info->glamo->suspending) {
-               dev_err(&glamo->mach_info->glamo->pdev->dev,
+       if (glamo->mach_info->core->suspending) {
+               dev_err(&glamo->mach_info->core->pdev->dev,
                                "IGNORING rotate_lcd while "
                                                                 "suspended\n");
                return;
@@ -321,7 +308,7 @@ static void __rotate_lcd(struct glamofb_handle *glamo, __u32 rotation)
 static void glamofb_program_mode(struct glamofb_handle* gfb) {
        int sync, bp, disp, fp, total;
        unsigned long flags;
-       struct glamo_core *gcore = gfb->mach_info->glamo;
+       struct glamo_core *gcore = gfb->mach_info->core;
        struct fb_var_screeninfo *var = &gfb->fb->var;
 
        dev_dbg(&gcore->pdev->dev,
@@ -334,7 +321,7 @@ static void glamofb_program_mode(struct glamofb_handle* gfb) {
        if (var->pixclock)
                glamo_engine_reclock(gcore,
                                     GLAMO_ENGINE_LCD,
-                                    gfb->fb->var.pixclock);
+                                    (1000000000UL / gfb->fb->var.pixclock) * 1000);
 
        reg_set_bit_mask(gfb,
                         GLAMO_REG_LCD_WIDTH,
@@ -407,7 +394,7 @@ static int glamofb_pan_display(struct fb_var_screeninfo *var,
 static struct fb_videomode *glamofb_find_mode(struct fb_info *info,
         struct fb_var_screeninfo *var) {
        struct glamofb_handle *glamo = info->par;
-       struct glamofb_platform_data *mach_info = glamo->mach_info;
+       struct glamo_fb_platform_data *mach_info = glamo->mach_info;
        struct fb_videomode *mode;
        int i;
 
@@ -426,8 +413,8 @@ static int glamofb_set_par(struct fb_info *info)
        struct fb_var_screeninfo *var = &info->var;
        struct fb_videomode *mode;
 
-       if (glamo->mach_info->glamo->suspending) {
-               dev_err(&glamo->mach_info->glamo->pdev->dev,
+       if (glamo->mach_info->core->suspending) {
+               dev_err(&glamo->mach_info->core->pdev->dev,
                                "IGNORING glamofb_set_par while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -506,8 +493,8 @@ static int glamofb_setcolreg(unsigned regno,
        struct glamofb_handle *glamo = info->par;
        unsigned int val;
 
-       if (glamo->mach_info->glamo->suspending) {
-               dev_err(&glamo->mach_info->glamo->pdev->dev,
+       if (glamo->mach_info->core->suspending) {
+               dev_err(&glamo->mach_info->core->pdev->dev,
                                "IGNORING glamofb_set_par while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -538,7 +525,7 @@ static int glamofb_setcolreg(unsigned regno,
 static int glamofb_ioctl(struct fb_info *info, unsigned int cmd,
                          unsigned long arg) {
        struct glamofb_handle *gfb = (struct glamofb_handle*)info->par;
-       struct glamo_core *gcore = gfb->mach_info->glamo;
+       struct glamo_core *gcore = gfb->mach_info->core;
        int retval = -ENOTTY;
 
        switch (cmd) {
@@ -700,8 +687,8 @@ int glamofb_cmd_mode(struct glamofb_handle *gfb, int on)
 {
        int timeout = 2000000;
 
-       if (gfb->mach_info->glamo->suspending) {
-               dev_err(&gfb->mach_info->glamo->pdev->dev,
+       if (gfb->mach_info->core->suspending) {
+               dev_err(&gfb->mach_info->core->pdev->dev,
                                "IGNORING glamofb_cmd_mode while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -764,8 +751,8 @@ int glamofb_cmd_write(struct glamofb_handle *gfb, u_int16_t val)
 {
        int timeout = 200000;
 
-       if (gfb->mach_info->glamo->suspending) {
-               dev_err(&gfb->mach_info->glamo->pdev->dev,
+       if (gfb->mach_info->core->suspending) {
+               dev_err(&gfb->mach_info->core->pdev->dev,
                                "IGNORING glamofb_cmd_write while "
                                                                 "suspended\n");
                return -EBUSY;
@@ -820,7 +807,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
        int rc = -EIO;
        struct fb_info *fbinfo;
        struct glamofb_handle *glamofb;
-       struct glamofb_platform_data *mach_info = pdev->dev.platform_data;
+       struct glamo_fb_platform_data *mach_info = pdev->dev.platform_data;
 
        printk(KERN_INFO "SMEDIA Glamo frame buffer driver (C) 2007 "
                "Openmoko, Inc.\n");
@@ -861,7 +848,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
        }
 
        glamofb->fb_res = request_mem_region(glamofb->fb_res->start,
-                                            mach_info->fb_mem_size,
+                                            resource_size(glamofb->fb_res),
                                             pdev->name);
        if (!glamofb->fb_res) {
                dev_err(&pdev->dev, "failed to request vram region\n");
@@ -875,6 +862,7 @@ static int __init glamofb_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "failed to ioremap() mmio memory\n");
                goto out_release_fb;
        }
+
        fbinfo->fix.smem_start = (unsigned long) glamofb->fb_res->start;
        fbinfo->fix.smem_len = (__u32) resource_size(glamofb->fb_res);
 
@@ -913,8 +901,8 @@ static int __init glamofb_probe(struct platform_device *pdev)
        fbinfo->var.accel_flags = 0;
        fbinfo->var.vmode = FB_VMODE_NONINTERLACED;
 
-       glamo_engine_enable(mach_info->glamo, GLAMO_ENGINE_LCD);
-       glamo_engine_reset(mach_info->glamo, GLAMO_ENGINE_LCD);
+       glamo_engine_enable(mach_info->core, GLAMO_ENGINE_LCD);
+       glamo_engine_reset(mach_info->core, GLAMO_ENGINE_LCD);
        glamofb->output_enabled = 1;
        glamofb->mode_set = 1;
 
@@ -934,14 +922,6 @@ static int __init glamofb_probe(struct platform_device *pdev)
                goto out_unmap_fb;
        }
 
-       if (mach_info->spi_info) {
-               /* register the sibling spi device */
-               mach_info->spi_info->glamofb_handle = glamofb;
-               glamo_spi_dev.dev.parent = &pdev->dev;
-               glamo_spi_dev.dev.platform_data = mach_info->spi_info;
-               platform_device_register(&glamo_spi_dev);
-       }
-
        printk(KERN_INFO "fb%d: %s frame buffer device\n",
                fbinfo->node, fbinfo->fix.id);
 
@@ -973,9 +953,9 @@ static int glamofb_remove(struct platform_device *pdev)
 
 #ifdef CONFIG_PM
 
-static int glamofb_suspend(struct platform_device *pdev, pm_message_t state)
+static int glamofb_suspend(struct device *dev)
 {
-       struct glamofb_handle *gfb = platform_get_drvdata(pdev);
+       struct glamofb_handle *gfb = dev_get_drvdata(dev);
 
        /* we need to stop anything touching our framebuffer */
        fb_set_suspend(gfb->fb, 1);
@@ -988,19 +968,17 @@ static int glamofb_suspend(struct platform_device *pdev, pm_message_t state)
        return 0;
 }
 
-static int glamofb_resume(struct platform_device *pdev)
+static int glamofb_resume(struct device *dev)
 {
-       struct glamofb_handle *gfb = platform_get_drvdata(pdev);
-       struct glamofb_platform_data *mach_info = pdev->dev.platform_data;
+       struct glamofb_handle *gfb = dev_get_drvdata(dev);
+       struct glamo_fb_platform_data *mach_info = dev->platform_data;
 
        /* OK let's allow framebuffer ops again */
        /* gfb->fb->screen_base = ioremap(gfb->fb_res->start,
                                       resource_size(gfb->fb_res)); */
-       glamo_engine_enable(mach_info->glamo, GLAMO_ENGINE_LCD);
-       glamo_engine_reset(mach_info->glamo, GLAMO_ENGINE_LCD);
+       glamo_engine_enable(mach_info->core, GLAMO_ENGINE_LCD);
+       glamo_engine_reset(mach_info->core, GLAMO_ENGINE_LCD);
 
-       printk(KERN_ERR"spin_lock_init\n");
-       spin_lock_init(&gfb->lock_cmd);
        glamofb_init_regs(gfb);
 #ifdef CONFIG_MFD_GLAMO_HWACCEL
        glamofb_cursor_onoff(gfb, 1);
@@ -1010,19 +988,25 @@ static int glamofb_resume(struct platform_device *pdev)
 
        return 0;
 }
+
+static struct dev_pm_ops glamofb_pm_ops = {
+       .suspend = glamofb_suspend,
+       .resume = glamofb_resume,
+};
+
+#define GLAMOFB_PM_OPS (&glamofb_pm_ops)
+
 #else
-#define glamofb_suspend NULL
-#define glamofb_resume  NULL
+#define GLAMOFB_PM_OPS NULL
 #endif
 
 static struct platform_driver glamofb_driver = {
        .probe          = glamofb_probe,
        .remove         = glamofb_remove,
-       .suspend        = glamofb_suspend,
-       .resume = glamofb_resume,
        .driver         = {
                .name   = "glamo-fb",
                .owner  = THIS_MODULE,
+               .pm     = GLAMOFB_PM_OPS
        },
 };