dm: core: Add a flag to control sequence numbering

[u-boot] / drivers / core / device.c

diff --git a/drivers/core/device.c b/drivers/core/device.c
index 2606d18717782be09f0116bfe5fb624bde84cd5d..f78b78a299edfdcefb1fe0e2a6f71b2fc9363a60 100644 (file)
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -53,24 +53,22 @@ int device_bind(struct udevice *parent, struct driver *drv, const char *name,
        dev->driver = drv;
        dev->uclass = uc;
 
-       /*
-        * For some devices, such as a SPI or I2C bus, the 'reg' property
-        * is a reasonable indicator of the sequence number. But if there is
-        * an alias, we use that in preference. In any case, this is just
-        * a 'requested' sequence, and will be resolved (and ->seq updated)
-        * when the device is probed.
-        */
        dev->seq = -1;
+       dev->req_seq = -1;
 #ifdef CONFIG_OF_CONTROL
-       dev->req_seq = fdtdec_get_int(gd->fdt_blob, of_offset, "reg", -1);
-       if (!IS_ERR_VALUE(dev->req_seq))
-               dev->req_seq &= INT_MAX;
-       if (uc->uc_drv->name && of_offset != -1) {
-               fdtdec_get_alias_seq(gd->fdt_blob, uc->uc_drv->name, of_offset,
-                                    &dev->req_seq);
+       /*
+        * Some devices, such as a SPI bus, I2C bus and serial ports are
+        * numbered using aliases.
+        *
+        * This is just a 'requested' sequence, and will be
+        * resolved (and ->seq updated) when the device is probed.
+        */
+       if (uc->uc_drv->flags & DM_UC_FLAG_SEQ_ALIAS) {
+               if (uc->uc_drv->name && of_offset != -1) {
+                       fdtdec_get_alias_seq(gd->fdt_blob, uc->uc_drv->name,
+                                            of_offset, &dev->req_seq);
+               }
        }
-#else
-       dev->req_seq = -1;
 #endif
        if (!dev->platdata && drv->platdata_auto_alloc_size) {
                dev->flags |= DM_FLAG_ALLOC_PDATA;