Merge remote branch 'origin' into secretlab/next-devicetree

Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

1 files changed, 91 insertions, 46 deletions

diff --git a/drivers/video/via/accel.c b/drivers/video/via/accel.c
index d5077dfa9e00..e44893ea590d 100644
--- a/drivers/video/via/accel.c
+++ b/drivers/video/via/accel.c
@@ -18,14 +18,45 @@
  * Foundation, Inc.,
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
+#include <linux/via-core.h>
 #include "global.h"
 
+/*
+ * Figure out an appropriate bytes-per-pixel setting.
+ */
+static int viafb_set_bpp(void __iomem *engine, u8 bpp)
+{
+        u32 gemode;
+
+        /* Preserve the reserved bits */
+        /* Lowest 2 bits to zero gives us no rotation */
+        gemode = readl(engine + VIA_REG_GEMODE) & 0xfffffcfc;
+        switch (bpp) {
+        case 8:
+                gemode |= VIA_GEM_8bpp;
+                break;
+        case 16:
+                gemode |= VIA_GEM_16bpp;
+                break;
+        case 32:
+                gemode |= VIA_GEM_32bpp;
+                break;
+        default:
+                printk(KERN_WARNING "viafb_set_bpp: Unsupported bpp %d\n", bpp);
+                return -EINVAL;
+        }
+        writel(gemode, engine + VIA_REG_GEMODE);
+        return 0;
+}
+
+
 static int hw_bitblt_1(void __iomem *engine, u8 op, u32 width, u32 height,
         u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
         u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
         u32 fg_color, u32 bg_color, u8 fill_rop)
 {
         u32 ge_cmd = 0, tmp, i;
+        int ret;
 
         if (!op || op > 3) {
                 printk(KERN_WARNING "hw_bitblt_1: Invalid operation: %d\n", op);
@@ -59,22 +90,9 @@ static int hw_bitblt_1(void __iomem *engine, u8 op, u32 width, u32 height,
                 }
         }
 
-        switch (dst_bpp) {
-        case 8:
-                tmp = 0x00000000;
-                break;
-        case 16:
-                tmp = 0x00000100;
-                break;
-        case 32:
-                tmp = 0x00000300;
-                break;
-        default:
-                printk(KERN_WARNING "hw_bitblt_1: Unsupported bpp %d\n",
-                        dst_bpp);
-                return -EINVAL;
-        }
-        writel(tmp, engine + 0x04);
+        ret = viafb_set_bpp(engine, dst_bpp);
+        if (ret)
+                return ret;
 
         if (op != VIA_BITBLT_FILL) {
                 if (src_x & (op == VIA_BITBLT_MONO ? 0xFFFF8000 : 0xFFFFF000)
@@ -171,6 +189,7 @@ static int hw_bitblt_2(void __iomem *engine, u8 op, u32 width, u32 height,
         u32 fg_color, u32 bg_color, u8 fill_rop)
 {
         u32 ge_cmd = 0, tmp, i;
+        int ret;
 
         if (!op || op > 3) {
                 printk(KERN_WARNING "hw_bitblt_2: Invalid operation: %d\n", op);
@@ -204,22 +223,9 @@ static int hw_bitblt_2(void __iomem *engine, u8 op, u32 width, u32 height,
                 }
         }
 
-        switch (dst_bpp) {
-        case 8:
-                tmp = 0x00000000;
-                break;
-        case 16:
-                tmp = 0x00000100;
-                break;
-        case 32:
-                tmp = 0x00000300;
-                break;
-        default:
-                printk(KERN_WARNING "hw_bitblt_2: Unsupported bpp %d\n",
-                        dst_bpp);
-                return -EINVAL;
-        }
-        writel(tmp, engine + 0x04);
+        ret = viafb_set_bpp(engine, dst_bpp);
+        if (ret)
+                return ret;
 
         if (op == VIA_BITBLT_FILL)
                 tmp = 0;
@@ -312,17 +318,29 @@ int viafb_init_engine(struct fb_info *info)
 {
         struct viafb_par *viapar = info->par;
         void __iomem *engine;
+        int highest_reg, i;
         u32 vq_start_addr, vq_end_addr, vq_start_low, vq_end_low, vq_high,
                 vq_len, chip_name = viapar->shared->chip_info.gfx_chip_name;
 
-        engine = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
-        viapar->shared->engine_mmio = engine;
+        engine = viapar->shared->vdev->engine_mmio;
         if (!engine) {
                 printk(KERN_WARNING "viafb_init_accel: ioremap failed, "
                         "hardware acceleration disabled\n");
                 return -ENOMEM;
         }
 
+        /* Initialize registers to reset the 2D engine */
+        switch (viapar->shared->chip_info.twod_engine) {
+        case VIA_2D_ENG_M1:
+                highest_reg = 0x5c;
+                break;
+        default:
+                highest_reg = 0x40;
+                break;
+        }
+        for (i = 0; i <= highest_reg; i += 4)
+                writel(0x0, engine + i);
+
         switch (chip_name) {
         case UNICHROME_CLE266:
         case UNICHROME_K400:
@@ -352,13 +370,28 @@ int viafb_init_engine(struct fb_info *info)
         viapar->shared->vq_vram_addr = viapar->fbmem_free;
         viapar->fbmem_used += VQ_SIZE;
 
-        /* Init 2D engine reg to reset 2D engine */
-        writel(0x0, engine + VIA_REG_KEYCONTROL);
+#if defined(CONFIG_FB_VIA_CAMERA) || defined(CONFIG_FB_VIA_CAMERA_MODULE)
+        /*
+         * Set aside a chunk of framebuffer memory for the camera
+         * driver.  Someday this driver probably needs a proper allocator
+         * for fbmem; for now, we just have to do this before the
+         * framebuffer initializes itself.
+         *
+         * As for the size: the engine can handle three frames,
+         * 16 bits deep, up to VGA resolution.
+         */
+        viapar->shared->vdev->camera_fbmem_size = 3*VGA_HEIGHT*VGA_WIDTH*2;
+        viapar->fbmem_free -= viapar->shared->vdev->camera_fbmem_size;
+        viapar->fbmem_used += viapar->shared->vdev->camera_fbmem_size;
+        viapar->shared->vdev->camera_fbmem_offset = viapar->fbmem_free;
+#endif
 
         /* Init AGP and VQ regs */
         switch (chip_name) {
         case UNICHROME_K8M890:
         case UNICHROME_P4M900:
+        case UNICHROME_VX800:
+        case UNICHROME_VX855:
                 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
                 writel(0x680A0000, engine + VIA_REG_CR_TRANSPACE);
                 writel(0x02000000, engine + VIA_REG_CR_TRANSPACE);
@@ -393,6 +426,8 @@ int viafb_init_engine(struct fb_info *info)
         switch (chip_name) {
         case UNICHROME_K8M890:
         case UNICHROME_P4M900:
+        case UNICHROME_VX800:
+        case UNICHROME_VX855:
                 vq_start_low |= 0x20000000;
                 vq_end_low |= 0x20000000;
                 vq_high |= 0x20000000;
@@ -446,7 +481,7 @@ void viafb_show_hw_cursor(struct fb_info *info, int Status)
         struct viafb_par *viapar = info->par;
         u32 temp, iga_path = viapar->iga_path;
 
-        temp = readl(viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
+        temp = readl(viapar->shared->vdev->engine_mmio + VIA_REG_CURSOR_MODE);
         switch (Status) {
         case HW_Cursor_ON:
                 temp |= 0x1;
@@ -463,23 +498,33 @@ void viafb_show_hw_cursor(struct fb_info *info, int Status)
         default:
                 temp &= 0x7FFFFFFF;
         }
-        writel(temp, viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
+        writel(temp, viapar->shared->vdev->engine_mmio + VIA_REG_CURSOR_MODE);
 }
 
 void viafb_wait_engine_idle(struct fb_info *info)
 {
         struct viafb_par *viapar = info->par;
         int loop = 0;
-
-        while (!(readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
-                        VIA_VR_QUEUE_BUSY) && (loop < MAXLOOP)) {
-                loop++;
-                cpu_relax();
+        u32 mask;
+        void __iomem *engine = viapar->shared->vdev->engine_mmio;
+
+        switch (viapar->shared->chip_info.twod_engine) {
+        case VIA_2D_ENG_H5:
+        case VIA_2D_ENG_M1:
+                mask = VIA_CMD_RGTR_BUSY_M1 | VIA_2D_ENG_BUSY_M1 |
+                              VIA_3D_ENG_BUSY_M1;
+                break;
+        default:
+                while (!(readl(engine + VIA_REG_STATUS) &
+                                VIA_VR_QUEUE_BUSY) && (loop < MAXLOOP)) {
+                        loop++;
+                        cpu_relax();
+                }
+                mask = VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY;
+                break;
         }
 
-        while ((readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
-                    (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY)) &&
-                    (loop < MAXLOOP)) {
+        while ((readl(engine + VIA_REG_STATUS) & mask) && (loop < MAXLOOP)) {
                 loop++;
                 cpu_relax();
         }