32 #include "edid.h"
102 	u8 *edid; /* null until we read edid from hw or get from sysfs */  member
942 		u8 __user *edid = (u8 __user *)arg;  in ufx_ops_ioctl()  local
943 		if (copy_to_user(edid, dev->edid, dev->edid_size))  in ufx_ops_ioctl()
1350 	/* A0h is std for any EDID, right shifted by one */  in ufx_i2c_configure()
1393 /* reads a 128-byte EDID block from the currently selected port and TAR */
1394 static int ufx_read_edid(struct ufx_data *dev, u8 *edid, int edid_len)  in ufx_read_edid()  argument
1397 	u32 *edid_u32 = (u32 *)edid;  in ufx_read_edid()
1407 	memset(edid, 0xff, EDID_LENGTH);  in ufx_read_edid()
1409 	/* Read the 128-byte EDID as 2 bursts of 64 bytes */  in ufx_read_edid()
1431 		if (edid[i] != 0xFF) {  in ufx_read_edid()
1432 			pr_debug("edid data read successfully");  in ufx_read_edid()
1437 	pr_warn("edid data contains all 0xff");  in ufx_read_edid()
1445  * Parses EDID into three places used by various parts of fbdev:
1447  * fb_info.monspecs is full parsed EDID info, including monspecs.modedb
1450  * If EDID is not readable/valid, then modelist is all VESA modes,
1457 	u8 *edid;  in ufx_setup_modes()  local
1463 	edid = kmalloc(EDID_LENGTH, GFP_KERNEL);  in ufx_setup_modes()
1464 	if (!edid) {  in ufx_setup_modes()
1472 	/* Try to (re)read EDID from hardware first  in ufx_setup_modes()
1473 	 * EDID data may return, but not parse as valid  in ufx_setup_modes()
1476 		i = ufx_read_edid(dev, edid, EDID_LENGTH);  in ufx_setup_modes()
1479 			fb_edid_to_monspecs(edid, &info->monspecs);  in ufx_setup_modes()
1482 			dev->edid = edid;  in ufx_setup_modes()
1488 	/* If that fails, use a previously returned EDID if available */  in ufx_setup_modes()
1490 		pr_err("Unable to get valid EDID from device/display\n");  in ufx_setup_modes()
1492 		if (dev->edid) {  in ufx_setup_modes()
1493 			fb_edid_to_monspecs(dev->edid, &info->monspecs);  in ufx_setup_modes()
1495 				pr_err("Using previously queried EDID\n");  in ufx_setup_modes()
1499 	/* If that fails, use the default EDID we were handed */  in ufx_setup_modes()
1504 				memcpy(edid, default_edid, default_edid_size);  in ufx_setup_modes()
1505 				dev->edid = edid;  in ufx_setup_modes()
1507 				pr_err("Using default/backup EDID\n");  in ufx_setup_modes()
1533 		 * Since we don't have EDID, there may be modes that  in ufx_setup_modes()
1545 		 * (since they are most common case without EDID)  in ufx_setup_modes()
1571 	if (edid && (dev->edid != edid))  in ufx_setup_modes()
1572 		kfree(edid);  in ufx_setup_modes()