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

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (35 commits)
  ARM: Update (and cut down) mach-types
  ARM: 6771/1: vexpress: add support for multiple core tiles
  ARM: 6797/1: hw_breakpoint: Fix newlines in WARNings
  ARM: 6751/1: vexpress: select applicable errata workarounds in Kconfig
  ARM: 6753/1: omap4: Enable ARM local timers with OMAP4430 es1.0 exception
  ARM: 6759/1: smp: Select local timers vs broadcast timer support runtime
  ARM: pgtable: add pud-level code
  ARM: 6673/1: LPAE: use phys_addr_t instead of unsigned long for start of membanks
  ARM: Use long long format when printing meminfo physical addresses
  ARM: integrator: add Integrator/CP sched_clock support
  ARM: realview/vexpress: consolidate SMP bringup code
  ARM: realview/vexpress: consolidate localtimer support
  ARM: integrator/versatile: consolidate FPGA IRQ handling code
  ARM: rationalize versatile family Kconfig/Makefile
  ARM: realview: remove old AMBA device DMA definitions
  ARM: versatile: remove old AMBA device DMA definitions
  ARM: vexpress: use new init_early for clock tree and sched_clock init
  ARM: realview: use new init_early for clock tree and sched_clock init
  ARM: versatile: use new init_early for clock tree and sched_clock init
  ARM: integrator: use new init_early for clock tree init
  ...

1 files changed, 90 insertions, 13 deletions

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 013c8ce57205..5fc983c5b92c 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -120,8 +120,23 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
 static int
 clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var)
 {
+        u32 caps;
         int ret = 0;
 
+        if (fb->panel->caps && fb->board->caps)
+                caps = fb->panel->caps & fb->board->caps;
+        else {
+                /* Old way of specifying what can be used */
+                caps = fb->panel->cntl & CNTL_BGR ?
+                        CLCD_CAP_BGR : CLCD_CAP_RGB;
+                /* But mask out 444 modes as they weren't supported */
+                caps &= ~CLCD_CAP_444;
+        }
+
+        /* Only TFT panels can do RGB888/BGR888 */
+        if (!(fb->panel->cntl & CNTL_LCDTFT))
+                caps &= ~CLCD_CAP_888;
+
         memset(&var->transp, 0, sizeof(var->transp));
 
         var->red.msb_right = 0;
@@ -133,6 +148,13 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var)
         case 2:
         case 4:
         case 8:
+                /* If we can't do 5551, reject */
+                caps &= CLCD_CAP_5551;
+                if (!caps) {
+                        ret = -EINVAL;
+                        break;
+                }
+
                 var->red.length         = var->bits_per_pixel;
                 var->red.offset         = 0;
                 var->green.length       = var->bits_per_pixel;
@@ -140,23 +162,61 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var)
                 var->blue.length        = var->bits_per_pixel;
                 var->blue.offset        = 0;
                 break;
+
         case 16:
-                var->red.length = 5;
-                var->blue.length = 5;
+                /* If we can't do 444, 5551 or 565, reject */
+                if (!(caps & (CLCD_CAP_444 | CLCD_CAP_5551 | CLCD_CAP_565))) {
+                        ret = -EINVAL;
+                        break;
+                }
+
                 /*
-                 * Green length can be 5 or 6 depending whether
-                 * we're operating in RGB555 or RGB565 mode.
+                 * Green length can be 4, 5 or 6 depending whether
+                 * we're operating in 444, 5551 or 565 mode.
                  */
-                if (var->green.length != 5 && var->green.length != 6)
-                        var->green.length = 6;
+                if (var->green.length == 4 && caps & CLCD_CAP_444)
+                        caps &= CLCD_CAP_444;
+                if (var->green.length == 5 && caps & CLCD_CAP_5551)
+                        caps &= CLCD_CAP_5551;
+                else if (var->green.length == 6 && caps & CLCD_CAP_565)
+                        caps &= CLCD_CAP_565;
+                else {
+                        /*
+                         * PL110 officially only supports RGB555,
+                         * but may be wired up to allow RGB565.
+                         */
+                        if (caps & CLCD_CAP_565) {
+                                var->green.length = 6;
+                                caps &= CLCD_CAP_565;
+                        } else if (caps & CLCD_CAP_5551) {
+                                var->green.length = 5;
+                                caps &= CLCD_CAP_5551;
+                        } else {
+                                var->green.length = 4;
+                                caps &= CLCD_CAP_444;
+                        }
+                }
+
+                if (var->green.length >= 5) {
+                        var->red.length = 5;
+                        var->blue.length = 5;
+                } else {
+                        var->red.length = 4;
+                        var->blue.length = 4;
+                }
                 break;
         case 32:
-                if (fb->panel->cntl & CNTL_LCDTFT) {
-                        var->red.length         = 8;
-                        var->green.length       = 8;
-                        var->blue.length        = 8;
+                /* If we can't do 888, reject */
+                caps &= CLCD_CAP_888;
+                if (!caps) {
+                        ret = -EINVAL;
                         break;
                 }
+
+                var->red.length = 8;
+                var->green.length = 8;
+                var->blue.length = 8;
+                break;
         default:
                 ret = -EINVAL;
                 break;
@@ -168,7 +228,20 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var)
          * the bitfield length defined above.
          */
         if (ret == 0 && var->bits_per_pixel >= 16) {
-                if (fb->panel->cntl & CNTL_BGR) {
+                bool bgr, rgb;
+
+                bgr = caps & CLCD_CAP_BGR && var->blue.offset == 0;
+                rgb = caps & CLCD_CAP_RGB && var->red.offset == 0;
+
+                if (!bgr && !rgb)
+                        /*
+                         * The requested format was not possible, try just
+                         * our capabilities.  One of BGR or RGB must be
+                         * supported.
+                         */
+                        bgr = caps & CLCD_CAP_BGR;
+
+                if (bgr) {
                         var->blue.offset = 0;
                         var->green.offset = var->blue.offset + var->blue.length;
                         var->red.offset = var->green.offset + var->green.length;
@@ -443,8 +516,8 @@ static int clcdfb_register(struct clcd_fb *fb)
 
         fb_set_var(&fb->fb, &fb->fb.var);
 
-        printk(KERN_INFO "CLCD: %s hardware, %s display\n",
-               fb->board->name, fb->panel->mode.name);
+        dev_info(&fb->dev->dev, "%s hardware, %s display\n",
+                 fb->board->name, fb->panel->mode.name);
 
         ret = register_framebuffer(&fb->fb);
         if (ret == 0)
@@ -486,6 +559,10 @@ static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
         fb->dev = dev;
         fb->board = board;
 
+        dev_info(&fb->dev->dev, "PL%03x rev%u at 0x%08llx\n",
+                amba_part(dev), amba_rev(dev),
+                (unsigned long long)dev->res.start);
+
         ret = fb->board->setup(fb);
         if (ret)
                 goto free_fb;