28 #include "edid.h"
785 static int dlfb_get_edid(struct dlfb_data *dlfb, char *edid, int len)  in dlfb_get_edid()  argument
801 				"Read EDID byte %d failed: %d\n", i, ret);  in dlfb_get_edid()
805 		edid[i] = rbuf[1];  in dlfb_get_edid()
824 		void __user *edid = (void __user *)arg;  in dlfb_ops_ioctl()  local
825 		if (copy_to_user(edid, dlfb->edid, dlfb->edid_size))  in dlfb_ops_ioctl()
962 	kfree(dlfb->edid);  in dlfb_ops_destroy()
1228  * 1) Get EDID from hw, or use sw default
1232  * Parses EDID into three places used by various parts of fbdev:
1234  * fb_info.monspecs is full parsed EDID info, including monspecs.modedb
1237  * If EDID is not readable/valid, then modelist is all VESA modes,
1245 	char *edid;  in dlfb_setup_modes()  local
1258 	edid = kmalloc(EDID_LENGTH, GFP_KERNEL);  in dlfb_setup_modes()
1259 	if (!edid) {  in dlfb_setup_modes()
1268 	 * Try to (re)read EDID from hardware first  in dlfb_setup_modes()
1269 	 * EDID data may return, but not parse as valid  in dlfb_setup_modes()
1274 		i = dlfb_get_edid(dlfb, edid, EDID_LENGTH);  in dlfb_setup_modes()
1277 			fb_edid_to_monspecs(edid, &info->monspecs);  in dlfb_setup_modes()
1280 			dlfb->edid = edid;  in dlfb_setup_modes()
1286 	/* If that fails, use a previously returned EDID if available */  in dlfb_setup_modes()
1288 		dev_err(dev, "Unable to get valid EDID from device/display\n");  in dlfb_setup_modes()
1290 		if (dlfb->edid) {  in dlfb_setup_modes()
1291 			fb_edid_to_monspecs(dlfb->edid, &info->monspecs);  in dlfb_setup_modes()
1293 				dev_err(dev, "Using previously queried EDID\n");  in dlfb_setup_modes()
1297 	/* If that fails, use the default EDID we were handed */  in dlfb_setup_modes()
1302 				memcpy(edid, default_edid, default_edid_size);  in dlfb_setup_modes()
1303 				dlfb->edid = edid;  in dlfb_setup_modes()
1305 				dev_err(dev, "Using default/backup EDID\n");  in dlfb_setup_modes()
1338 		 * Since we don't have EDID, there may be modes that  in dlfb_setup_modes()
1353 		 * (since they are most common case without EDID)  in dlfb_setup_modes()
1376 	if (edid && (dlfb->edid != edid))  in dlfb_setup_modes()
1377 		kfree(edid);  in dlfb_setup_modes()
1425 	if (dlfb->edid == NULL)  in edid_show()
1434 	memcpy(buf, dlfb->edid, count);  in edid_show()
1448 	/* We only support write of entire EDID at once, no offset*/  in edid_store()
1456 	if (!dlfb->edid || memcmp(src, dlfb->edid, src_size))  in edid_store()
1482 	.attr.name = "edid",