Merge branch 'master'

5 files changed, 165 insertions, 63 deletions

diff --git a/drivers/video/nvidia/nv_local.h b/drivers/video/nvidia/nv_local.h
index afee284fc73..4243d7fae97 100644
--- a/drivers/video/nvidia/nv_local.h
+++ b/drivers/video/nvidia/nv_local.h
@@ -105,7 +105,7 @@ do {                            \
 	*a = byte_rev[*a];      \
 } while(0)
 #else
-#define reverse_order(l)
+#define reverse_order(l) do { } while(0)
 #endif                          /* __LITTLE_ENDIAN */
 
 #endif				/* __NV_LOCAL_H__ */
diff --git a/drivers/video/nvidia/nv_of.c b/drivers/video/nvidia/nv_of.c
index 4fa2cf9a8af..7a03d040b1a 100644
--- a/drivers/video/nvidia/nv_of.c
+++ b/drivers/video/nvidia/nv_of.c
@@ -27,34 +27,60 @@
 #include "nv_local.h"
 #include "nv_proto.h"
 
-void nvidia_create_i2c_busses(struct nvidia_par *par) {}
-void nvidia_delete_i2c_busses(struct nvidia_par *par) {}
+#include "../edid.h"
 
-int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
+int nvidia_probe_of_connector(struct fb_info *info, int conn, u8 **out_edid)
 {
 	struct nvidia_par *par = info->par;
-	struct device_node *dp;
+	struct device_node *parent, *dp;
 	unsigned char *pedid = NULL;
-	unsigned char *disptype = NULL;
 	static char *propnames[] = {
-		"DFP,EDID", "LCD,EDID", "EDID", "EDID1", "EDID,B", "EDID,A", NULL };
+		"DFP,EDID", "LCD,EDID", "EDID", "EDID1",
+		"EDID,B", "EDID,A", NULL };
 	int i;
 
-	dp = pci_device_to_OF_node(par->pci_dev);
-	for (; dp != NULL; dp = dp->child) {
-		disptype = (unsigned char *)get_property(dp, "display-type", NULL);
-		if (disptype == NULL)
-			continue;
-		if (strncmp(disptype, "LCD", 3) != 0)
-			continue;
+	parent = pci_device_to_OF_node(par->pci_dev);
+	if (parent == NULL)
+		return -1;
+	if (par->twoHeads) {
+		char *pname;
+		int len;
+
+		for (dp = NULL;
+		     (dp = of_get_next_child(parent, dp)) != NULL;) {
+			pname = (char *)get_property(dp, "name", NULL);
+			if (!pname)
+				continue;
+			len = strlen(pname);
+			if ((pname[len-1] == 'A' && conn == 1) ||
+			    (pname[len-1] == 'B' && conn == 2)) {
+				for (i = 0; propnames[i] != NULL; ++i) {
+					pedid = (unsigned char *)
+						get_property(dp, propnames[i],
+							     NULL);
+					if (pedid != NULL)
+						break;
+				}
+				of_node_put(dp);
+				break;
+			}
+		}
+	}
+	if (pedid == NULL) {
 		for (i = 0; propnames[i] != NULL; ++i) {
 			pedid = (unsigned char *)
-				get_property(dp, propnames[i], NULL);
-			if (pedid != NULL) {
-				*out_edid = pedid;
-				return 0;
-			}
+				get_property(parent, propnames[i], NULL);
+			if (pedid != NULL)
+				break;
 		}
 	}
-	return 1;
+	if (pedid) {
+		*out_edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
+		if (*out_edid == NULL)
+			return -1;
+		memcpy(*out_edid, pedid, EDID_LENGTH);
+		printk(KERN_DEBUG "nvidiafb: Found OF EDID for head %d\n", conn);
+		return 0;
+	}
+	return -1;
 }
diff --git a/drivers/video/nvidia/nv_proto.h b/drivers/video/nvidia/nv_proto.h
index cac44fc7f58..f60b1f43227 100644
--- a/drivers/video/nvidia/nv_proto.h
+++ b/drivers/video/nvidia/nv_proto.h
@@ -31,7 +31,7 @@ int NVShowHideCursor(struct nvidia_par *par, int);
 void NVLockUnlock(struct nvidia_par *par, int);
 
 /* in nvidia-i2c.c */
-#if defined(CONFIG_FB_NVIDIA_I2C) || defined (CONFIG_PPC_OF)
+#ifdef CONFIG_FB_NVIDIA_I2C
 void nvidia_create_i2c_busses(struct nvidia_par *par);
 void nvidia_delete_i2c_busses(struct nvidia_par *par);
 int nvidia_probe_i2c_connector(struct fb_info *info, int conn,
@@ -39,10 +39,18 @@ int nvidia_probe_i2c_connector(struct fb_info *info, int conn,
 #else
 #define nvidia_create_i2c_busses(...)
 #define nvidia_delete_i2c_busses(...)
-#define nvidia_probe_i2c_connector(p, c, edid) \
-do {                                           \
-	*(edid) = NULL;                        \
-} while(0)
+#define nvidia_probe_i2c_connector(p, c, edid) (-1)
+#endif
+
+#ifdef CONFIG_FB_OF
+int nvidia_probe_of_connector(struct fb_info *info, int conn,
+			      u8 ** out_edid);
+#else
+static inline int nvidia_probe_of_connector(struct fb_info *info, int conn,
+				      u8 ** out_edid)
+{
+	return -1;
+}
 #endif
 
 /* in nv_accel.c */
diff --git a/drivers/video/nvidia/nv_setup.c b/drivers/video/nvidia/nv_setup.c
index 11c84178f42..1f06a9f1bd0 100644
--- a/drivers/video/nvidia/nv_setup.c
+++ b/drivers/video/nvidia/nv_setup.c
@@ -190,9 +190,9 @@ static int NVIsConnected(struct nvidia_par *par, int output)
 	present = (NV_RD32(PRAMDAC, 0x0608) & (1 << 28)) ? 1 : 0;
 
 	if (present)
-		printk("nvidiafb: CRTC%i found\n", output);
+		printk("nvidiafb: CRTC%i analog found\n", output);
 	else
-		printk("nvidiafb: CRTC%i not found\n", output);
+		printk("nvidiafb: CRTC%i analog not found\n", output);
 
 	NV_WR32(par->PRAMDAC0, 0x0608, NV_RD32(par->PRAMDAC0, 0x0608) &
 		0x0000EFFF);
@@ -305,6 +305,9 @@ void NVCommonSetup(struct fb_info *info)
 	int FlatPanel = -1;	/* really means the CRTC is slaved */
 	int Television = 0;
 
+	memset(&monitorA, 0, sizeof(struct fb_monspecs));
+	memset(&monitorB, 0, sizeof(struct fb_monspecs));
+
 	par->PRAMIN = par->REGS + (0x00710000 / 4);
 	par->PCRTC0 = par->REGS + (0x00600000 / 4);
 	par->PRAMDAC0 = par->REGS + (0x00680000 / 4);
@@ -401,7 +404,8 @@ void NVCommonSetup(struct fb_info *info)
 	nvidia_create_i2c_busses(par);
 	if (!par->twoHeads) {
 		par->CRTCnumber = 0;
-		nvidia_probe_i2c_connector(info, 1, &edidA);
+		if (nvidia_probe_i2c_connector(info, 1, &edidA))
+			nvidia_probe_of_connector(info, 1, &edidA);
 		if (edidA && !fb_parse_edid(edidA, &var)) {
 			printk("nvidiafb: EDID found from BUS1\n");
 			monA = &monitorA;
@@ -488,14 +492,16 @@ void NVCommonSetup(struct fb_info *info)
 		oldhead = NV_RD32(par->PCRTC0, 0x00000860);
 		NV_WR32(par->PCRTC0, 0x00000860, oldhead | 0x00000010);
 
-		nvidia_probe_i2c_connector(info, 1, &edidA);
+		if (nvidia_probe_i2c_connector(info, 1, &edidA))
+			nvidia_probe_of_connector(info, 1, &edidA);
 		if (edidA && !fb_parse_edid(edidA, &var)) {
 			printk("nvidiafb: EDID found from BUS1\n");
 			monA = &monitorA;
 			fb_edid_to_monspecs(edidA, monA);
 		}
 
-		nvidia_probe_i2c_connector(info, 2, &edidB);
+		if (nvidia_probe_i2c_connector(info, 2, &edidB))
+			nvidia_probe_of_connector(info, 2, &edidB);
 		if (edidB && !fb_parse_edid(edidB, &var)) {
 			printk("nvidiafb: EDID found from BUS2\n");
 			monB = &monitorB;
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index 308defc389a..0b40a2a721c 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -411,6 +411,7 @@ MODULE_DEVICE_TABLE(pci, nvidiafb_pci_tbl);
 
 /* command line data, set in nvidiafb_setup() */
 static int flatpanel __devinitdata = -1;	/* Autodetect later */
+static int fpdither __devinitdata = -1;
 static int forceCRTC __devinitdata = -1;
 static int hwcur __devinitdata = 0;
 static int noaccel __devinitdata = 0;
@@ -627,41 +628,85 @@ static void nvidia_save_vga(struct nvidia_par *par,
 	NVTRACE_LEAVE();
 }
 
+#undef DUMP_REG
+
 static void nvidia_write_regs(struct nvidia_par *par)
 {
 	struct _riva_hw_state *state = &par->ModeReg;
 	int i;
 
 	NVTRACE_ENTER();
-	NVWriteCrtc(par, 0x11, 0x00);
-
-	NVLockUnlock(par, 0);
 
 	NVLoadStateExt(par, state);
 
 	NVWriteMiscOut(par, state->misc_output);
 
+	for (i = 1; i < NUM_SEQ_REGS; i++) {
+#ifdef DUMP_REG
+		printk(" SEQ[%02x] = %08x\n", i, state->seq[i]);
+#endif
+		NVWriteSeq(par, i, state->seq[i]);
+	}
+
+	/* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 of CRTC[17] */
+	NVWriteCrtc(par, 0x11, state->crtc[0x11] & ~0x80);
+
 	for (i = 0; i < NUM_CRT_REGS; i++) {
 		switch (i) {
 		case 0x19:
 		case 0x20 ... 0x40:
 			break;
 		default:
+#ifdef DUMP_REG
+			printk("CRTC[%02x] = %08x\n", i, state->crtc[i]);
+#endif
 			NVWriteCrtc(par, i, state->crtc[i]);
 		}
 	}
 
-	for (i = 0; i < NUM_ATC_REGS; i++)
-		NVWriteAttr(par, i, state->attr[i]);
-
-	for (i = 0; i < NUM_GRC_REGS; i++)
+	for (i = 0; i < NUM_GRC_REGS; i++) {
+#ifdef DUMP_REG
+		printk(" GRA[%02x] = %08x\n", i, state->gra[i]);
+#endif
 		NVWriteGr(par, i, state->gra[i]);
+	}
+
+	for (i = 0; i < NUM_ATC_REGS; i++) {
+#ifdef DUMP_REG
+		printk("ATTR[%02x] = %08x\n", i, state->attr[i]);
+#endif
+		NVWriteAttr(par, i, state->attr[i]);
+	}
 
-	for (i = 0; i < NUM_SEQ_REGS; i++)
-		NVWriteSeq(par, i, state->seq[i]);
 	NVTRACE_LEAVE();
 }
 
+static void nvidia_vga_protect(struct nvidia_par *par, int on)
+{
+	unsigned char tmp;
+
+	if (on) {
+		/*
+		 * Turn off screen and disable sequencer.
+		 */
+		tmp = NVReadSeq(par, 0x01);
+
+		NVWriteSeq(par, 0x00, 0x01);		/* Synchronous Reset */
+		NVWriteSeq(par, 0x01, tmp | 0x20);	/* disable the display */
+	} else {
+		/*
+		 * Reenable sequencer, then turn on screen.
+		 */
+
+		tmp = NVReadSeq(par, 0x01);
+
+		NVWriteSeq(par, 0x01, tmp & ~0x20);	/* reenable display */
+		NVWriteSeq(par, 0x00, 0x03);		/* End Reset */
+	}
+}
+
+
+
 static int nvidia_calc_regs(struct fb_info *info)
 {
 	struct nvidia_par *par = info->par;
@@ -868,7 +913,7 @@ static void nvidia_init_vga(struct fb_info *info)
 	for (i = 0; i < 0x10; i++)
 		state->attr[i] = i;
 	state->attr[0x10] = 0x41;
-	state->attr[0x11] = 0x01;
+	state->attr[0x11] = 0xff;
 	state->attr[0x12] = 0x0f;
 	state->attr[0x13] = 0x00;
 	state->attr[0x14] = 0x00;
@@ -982,16 +1027,24 @@ static int nvidiafb_set_par(struct fb_info *info)
 	NVTRACE_ENTER();
 
 	NVLockUnlock(par, 1);
-	if (!par->FlatPanel || (info->var.bits_per_pixel != 24) ||
-	    !par->twoHeads)
+	if (!par->FlatPanel || !par->twoHeads)
 		par->FPDither = 0;
 
+	if (par->FPDither < 0) {
+		if ((par->Chipset & 0x0ff0) == 0x0110)
+			par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x0528)
+					   & 0x00010000);
+		else
+			par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x083C) & 1);
+		printk(KERN_INFO PFX "Flat panel dithering %s\n",
+		       par->FPDither ? "enabled" : "disabled");
+	}
+
 	info->fix.visual = (info->var.bits_per_pixel == 8) ?
 	    FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
 
 	nvidia_init_vga(info);
 	nvidia_calc_regs(info);
-	nvidia_write_regs(par);
 
 	NVLockUnlock(par, 0);
 	if (par->twoHeads) {
@@ -1000,7 +1053,22 @@ static int nvidiafb_set_par(struct fb_info *info)
 		NVLockUnlock(par, 0);
 	}
 
-	NVWriteCrtc(par, 0x11, 0x00);
+	nvidia_vga_protect(par, 1);
+
+	nvidia_write_regs(par);
+
+#if defined (__BIG_ENDIAN)
+	/* turn on LFB swapping */
+	{
+		unsigned char tmp;
+
+		VGA_WR08(par->PCIO, 0x3d4, 0x46);
+		tmp = VGA_RD08(par->PCIO, 0x3d5);
+		tmp |= (1 << 7);
+		VGA_WR08(par->PCIO, 0x3d5, tmp);
+    }
+#endif
+
 	info->fix.line_length = (info->var.xres_virtual *
 				 info->var.bits_per_pixel) >> 3;
 	if (info->var.accel_flags) {
@@ -1022,7 +1090,7 @@ static int nvidiafb_set_par(struct fb_info *info)
 
 	par->cursor_reset = 1;
 
-	NVWriteCrtc(par, 0x11, 0xff);
+	nvidia_vga_protect(par, 0);
 
 	NVTRACE_LEAVE();
 	return 0;
@@ -1315,22 +1383,10 @@ static int __devinit nvidia_set_fbinfo(struct fb_info *info)
 	fb_var_to_videomode(&modedb, &nvidiafb_default_var);
 
 	if (specs->modedb != NULL) {
-		/* get preferred timing */
-		if (specs->misc & FB_MISC_1ST_DETAIL) {
-			int i;
-
-			for (i = 0; i < specs->modedb_len; i++) {
-				if (specs->modedb[i].flag & FB_MODE_IS_FIRST) {
-					modedb = specs->modedb[i];
-					break;
-				}
-			}
-		} else {
-			/* otherwise, get first mode in database */
-			modedb = specs->modedb[0];
-		}
+		struct fb_videomode *modedb;
 
-		fb_videomode_to_var(&nvidiafb_default_var, &modedb);
+		modedb = fb_find_best_display(specs, &info->modelist);
+		fb_videomode_to_var(&nvidiafb_default_var, modedb);
 		nvidiafb_default_var.bits_per_pixel = 8;
 	} else if (par->fpWidth && par->fpHeight) {
 		char buf[16];
@@ -1365,7 +1421,7 @@ static int __devinit nvidia_set_fbinfo(struct fb_info *info)
 	info->pixmap.flags = FB_PIXMAP_SYSTEM;
 
 	if (!hwcur)
-	    info->fbops->fb_cursor = soft_cursor;
+	    info->fbops->fb_cursor = NULL;
 
 	info->var.accel_flags = (!noaccel);
 
@@ -1490,9 +1546,9 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd,
 	sprintf(nvidiafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
 
 	par->FlatPanel = flatpanel;
-
 	if (flatpanel == 1)
 		printk(KERN_INFO PFX "flatpanel support enabled\n");
+	par->FPDither = fpdither;
 
 	par->CRTCnumber = forceCRTC;
 	par->FpScale = (!noscale);
@@ -1671,6 +1727,8 @@ static int __devinit nvidiafb_setup(char *options)
 		} else if (!strncmp(this_opt, "nomtrr", 6)) {
 			nomtrr = 1;
 #endif
+		} else if (!strncmp(this_opt, "fpdither:", 9)) {
+			fpdither = simple_strtol(this_opt+9, NULL, 0);
 		} else
 			mode_option = this_opt;
 	}
@@ -1717,7 +1775,11 @@ module_exit(nvidiafb_exit);
 module_param(flatpanel, int, 0);
 MODULE_PARM_DESC(flatpanel,
 		 "Enables experimental flat panel support for some chipsets. "
-		 "(0 or 1=enabled) (default=0)");
+		 "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
+module_param(fpdither, int, 0);
+MODULE_PARM_DESC(fpdither,
+		 "Enables dithering of flat panel for 6 bits panels. "
+		 "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
 module_param(hwcur, int, 0);
 MODULE_PARM_DESC(hwcur,
 		 "Enables hardware cursor implementation. (0 or 1=enabled) "