diff options
Diffstat (limited to 'drivers/video/nvidia/nv_of.c')
-rw-r--r-- | drivers/video/nvidia/nv_of.c | 64 |
1 files changed, 45 insertions, 19 deletions
diff --git a/drivers/video/nvidia/nv_of.c b/drivers/video/nvidia/nv_of.c index 4fa2cf9..7a03d04 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; } |