[src/trunk]: src/sys/arch/macppc/dev pass sensor location info to drivers if ...

[macallan <macallan%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/103d7a65f8f9
branches:  trunk
changeset: 463281:103d7a65f8f9
user:      macallan <macallan%NetBSD.org@localhost>
date:      Thu Aug 15 22:35:39 2019 +0000

description:
pass sensor location info to drivers if we can find it

diffstat:

 sys/arch/macppc/dev/ki2c.c |  20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diffs (45 lines):

diff -r d82117473779 -r 103d7a65f8f9 sys/arch/macppc/dev/ki2c.c
--- a/sys/arch/macppc/dev/ki2c.c        Thu Aug 15 21:12:16 2019 +0000
+++ b/sys/arch/macppc/dev/ki2c.c        Thu Aug 15 22:35:39 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ki2c.c,v 1.25 2018/03/08 21:53:20 macallan Exp $       */
+/*     $NetBSD: ki2c.c,v 1.26 2019/08/15 22:35:39 macallan Exp $       */
 /*     Id: ki2c.c,v 1.7 2002/10/05 09:56:05 tsubai Exp */
 
 /*-
@@ -84,13 +84,13 @@
        struct ki2c_softc *sc = device_private(self);
        struct confargs *ca = aux;
        int node = ca->ca_node;
-       uint32_t addr, channel;
+       uint32_t addr, channel, reg;
        int rate, child, /*namelen,*/ i2cbus;
        struct i2cbus_attach_args iba;
        prop_dictionary_t dict = device_properties(self);
        prop_array_t cfg;
-       int devs;
-       char compat[256];
+       int devs, devc;
+       char compat[256], num[8], descr[32];
        prop_dictionary_t dev;
        prop_data_t data;
        char name[32];
@@ -178,6 +178,18 @@
                prop_object_release(data);
                prop_dictionary_set_uint32(dev, "addr", addr);
                prop_dictionary_set_uint64(dev, "cookie", devs);
+               /* look for location info for sensors */
+               devc = OF_child(devs);
+               while (devc != 0) {
+                       if (OF_getprop(devc, "reg", &reg, 4) < 4) goto nope;
+                       if (OF_getprop(devc, "location", descr, 32) <= 0)
+                               goto nope;
+                       DPRINTF("found '%s' at %02x\n", descr, reg);
+                       snprintf(num, 7, "s%02x", reg);
+                       prop_dictionary_set_cstring(dev, num, descr);
+               nope:
+                       devc = OF_peer(devc);
+               }
                prop_array_add(cfg, dev);
                prop_object_release(dev);
        skip: