int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn,
u8 **out_edid)
{
u8 *edid;
edid = fb_ddc_read(&rinfo->i2c[conn-1].adapter);
if (out_edid)
*out_edid = edid;
if (!edid) {
pr_debug("radeonfb: I2C (port %d) ... not found\n", conn);
return MT_NONE;
}
if (edid[0x14] & 0x80) {
/* Fix detection using BIOS tables */
if (rinfo->is_mobility /*&& conn == ddc_dvi*/ &&
(INREG(LVDS_GEN_CNTL) & LVDS_ON)) {
pr_debug("radeonfb: I2C (port %d) ... found LVDS panel\n", conn);
return MT_LCD;
} else {
pr_debug("radeonfb: I2C (port %d) ... found TMDS panel\n", conn);
return MT_DFP;
}
}
pr_debug("radeonfb: I2C (port %d) ... found CRT display\n", conn);
return MT_CRT;
}
int i810_probe_i2c_connector(struct fb_info *info, u8 **out_edid, int conn)
{
struct i810fb_par *par = info->par;
u8 *edid = NULL;
DPRINTK("i810-i2c: Probe DDC%i Bus\n", conn+1);
if (conn < par->ddc_num) {
edid = fb_ddc_read(&par->chan[conn].adapter);
} else {
const u8 *e = fb_firmware_edid(info->device);
if (e != NULL) {
DPRINTK("i810-i2c: Getting EDID from BIOS\n");
edid = kmemdup(e, EDID_LENGTH, GFP_KERNEL);
}
}
*out_edid = edid;
return (edid) ? 0 : 1;
}
int savagefb_probe_i2c_connector(struct fb_info *info, u8 **out_edid)
{
struct savagefb_par *par = info->par;
u8 *edid;
if (par->chan.par)
edid = fb_ddc_read(&par->chan.adapter);
else
edid = NULL;
if (!edid) {
/* try to get from firmware */
const u8 *e = fb_firmware_edid(info->device);
if (e)
edid = kmemdup(e, EDID_LENGTH, GFP_KERNEL);
}
*out_edid = edid;
return (edid) ? 0 : 1;
}
