Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (291 commits)
  ARM: AMBA: Add pclk support to AMBA bus infrastructure
  ARM: 6278/2: fix regression in RealView after the introduction of pclk
  ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128
  ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY
  ARM: 6246/1: mmci: support larger MMCIDATALENGTH register
  ARM: 6245/1: mmci: enable hardware flow control on Ux500 variants
  ARM: 6244/1: mmci: add variant data and default MCICLOCK support
  ARM: 6243/1: mmci: pass power_mode to the translate_vdd callback
  ARM: 6274/1: add global control registers definition header file for nuc900
  mx2_camera: fix type of dma buffer virtual address pointer
  mx2_camera: Add soc_camera support for i.MX25/i.MX27
  arm/imx/gpio: add spinlock protection
  ARM: Add support for the LPC32XX arch
  ARM: LPC32XX: Arch config menu supoport and makefiles
  ARM: LPC32XX: Phytec 3250 platform support
  ARM: LPC32XX: Misc support functions
  ARM: LPC32XX: Serial support code
  ARM: LPC32XX: System suspend support
  ARM: LPC32XX: GPIO, timer, and IRQ drivers
  ARM: LPC32XX: Clock driver
  ...

2 files changed, 86 insertions, 19 deletions

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index b4b6deceed15..43f0639b1c10 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -175,6 +175,7 @@ struct imxfb_info {
 
         struct imx_fb_videomode *mode;
         int                     num_modes;
+        struct backlight_device *bl;
 
         void (*lcd_power)(int);
         void (*backlight_power)(int);
@@ -449,6 +450,73 @@ static int imxfb_set_par(struct fb_info *info)
         return 0;
 }
 
+
+
+static int imxfb_bl_get_brightness(struct backlight_device *bl)
+{
+        struct imxfb_info *fbi = bl_get_data(bl);
+
+        return readl(fbi->regs + LCDC_PWMR) & 0xFF;
+}
+
+static int imxfb_bl_update_status(struct backlight_device *bl)
+{
+        struct imxfb_info *fbi = bl_get_data(bl);
+        int brightness = bl->props.brightness;
+
+        if (bl->props.power != FB_BLANK_UNBLANK)
+                brightness = 0;
+        if (bl->props.fb_blank != FB_BLANK_UNBLANK)
+                brightness = 0;
+
+        fbi->pwmr = (fbi->pwmr & ~0xFF) | brightness;
+
+        if (bl->props.fb_blank != FB_BLANK_UNBLANK)
+                clk_enable(fbi->clk);
+        writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
+        if (bl->props.fb_blank != FB_BLANK_UNBLANK)
+                clk_disable(fbi->clk);
+
+        return 0;
+}
+
+static const struct backlight_ops imxfb_lcdc_bl_ops = {
+        .update_status = imxfb_bl_update_status,
+        .get_brightness = imxfb_bl_get_brightness,
+};
+
+static void imxfb_init_backlight(struct imxfb_info *fbi)
+{
+        struct backlight_properties props;
+        struct backlight_device *bl;
+
+        if (fbi->bl)
+                return;
+
+        memset(&props, 0, sizeof(struct backlight_properties));
+        props.max_brightness = 0xff;
+        writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
+
+        bl = backlight_device_register("imxfb-bl", &fbi->pdev->dev, fbi,
+                                       &imxfb_lcdc_bl_ops, &props);
+        if (IS_ERR(bl)) {
+                dev_err(&fbi->pdev->dev, "error %ld on backlight register\n",
+                                PTR_ERR(bl));
+                return;
+        }
+
+        fbi->bl = bl;
+        bl->props.power = FB_BLANK_UNBLANK;
+        bl->props.fb_blank = FB_BLANK_UNBLANK;
+        bl->props.brightness = imxfb_bl_get_brightness(bl);
+}
+
+static void imxfb_exit_backlight(struct imxfb_info *fbi)
+{
+        if (fbi->bl)
+                backlight_device_unregister(fbi->bl);
+}
+
 static void imxfb_enable_controller(struct imxfb_info *fbi)
 {
         pr_debug("Enabling LCD controller\n");
@@ -579,7 +647,6 @@ static int imxfb_activate_var(struct fb_var_screeninfo *var, struct fb_info *inf
                         fbi->regs + LCDC_SIZE);
 
         writel(fbi->pcr, fbi->regs + LCDC_PCR);
-        writel(fbi->pwmr, fbi->regs + LCDC_PWMR);
         writel(fbi->lscr1, fbi->regs + LCDC_LSCR1);
         writel(fbi->dmacr, fbi->regs + LCDC_DMACR);
 
@@ -779,6 +846,8 @@ static int __init imxfb_probe(struct platform_device *pdev)
         }
 
         imxfb_enable_controller(fbi);
+        fbi->pdev = pdev;
+        imxfb_init_backlight(fbi);
 
         return 0;
 
@@ -816,6 +885,7 @@ static int __devexit imxfb_remove(struct platform_device *pdev)
 
         imxfb_disable_controller(fbi);
 
+        imxfb_exit_backlight(fbi);
         unregister_framebuffer(info);
 
         pdata = pdev->dev.platform_data;
diff --git a/drivers/video/omap2/vram.c b/drivers/video/omap2/vram.c
index 3b1237ad85ed..f6fdc2085f3e 100644
--- a/drivers/video/omap2/vram.c
+++ b/drivers/video/omap2/vram.c
@@ -25,7 +25,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/seq_file.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
 #include <linux/completion.h>
 #include <linux/debugfs.h>
 #include <linux/jiffies.h>
@@ -525,10 +525,8 @@ early_param("vram", omap_vram_early_vram);
  * Called from map_io. We need to call to this early enough so that we
  * can reserve the fixed SDRAM regions before VM could get hold of them.
  */
-void __init omap_vram_reserve_sdram(void)
+void __init omap_vram_reserve_sdram_memblock(void)
 {
-        struct bootmem_data     *bdata;
-        unsigned long           sdram_start, sdram_size;
         u32 paddr;
         u32 size = 0;
 
@@ -555,29 +553,28 @@ void __init omap_vram_reserve_sdram(void)
 
         size = PAGE_ALIGN(size);
 
-        bdata = NODE_DATA(0)->bdata;
-        sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
-        sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
-
         if (paddr) {
-                if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
-                                paddr + size > sdram_start + sdram_size) {
+                struct memblock_property res;
+
+                res.base = paddr;
+                res.size = size;
+                if ((paddr & ~PAGE_MASK) || memblock_find(&res) ||
+                    res.base != paddr || res.size != size) {
                         pr_err("Illegal SDRAM region for VRAM\n");
                         return;
                 }
 
-                if (reserve_bootmem(paddr, size, BOOTMEM_EXCLUSIVE) < 0) {
-                        pr_err("FB: failed to reserve VRAM\n");
+                if (memblock_is_region_reserved(paddr, size)) {
+                        pr_err("FB: failed to reserve VRAM - busy\n");
                         return;
                 }
-        } else {
-                if (size > sdram_size) {
-                        pr_err("Illegal SDRAM size for VRAM\n");
+
+                if (memblock_reserve(paddr, size) < 0) {
+                        pr_err("FB: failed to reserve VRAM - no memory\n");
                         return;
                 }
-
-                paddr = virt_to_phys(alloc_bootmem_pages(size));
-                BUG_ON(paddr & ~PAGE_MASK);
+        } else {
+                paddr = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_REAL_LIMIT);
         }
 
         omap_vram_add_region(paddr, size);