[src/trunk]: src/sys/dev/i2c Add direct-config support.

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

details:   https://anonhg.NetBSD.org/src/rev/e6e154def70b
branches:  trunk
changeset: 958106:e6e154def70b
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Wed Dec 23 17:10:37 2020 +0000

description:
Add direct-config support.

diffstat:

 sys/dev/i2c/em3027.c |  13 ++++++++++---
 1 files changed, 10 insertions(+), 3 deletions(-)

diffs (41 lines):

diff -r 3e2237111c28 -r e6e154def70b sys/dev/i2c/em3027.c
--- a/sys/dev/i2c/em3027.c      Wed Dec 23 16:52:06 2020 +0000
+++ b/sys/dev/i2c/em3027.c      Wed Dec 23 17:10:37 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: em3027.c,v 1.3 2019/07/27 16:02:27 thorpej Exp $ */
+/*     $NetBSD: em3027.c,v 1.4 2020/12/23 17:10:37 thorpej Exp $ */
 /*
  * Copyright (c) 2018 Valery Ushakov
  * All rights reserved.
@@ -28,7 +28,7 @@
  * EM Microelectronic EM3027 RTC
  */
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: em3027.c,v 1.3 2019/07/27 16:02:27 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: em3027.c,v 1.4 2020/12/23 17:10:37 thorpej Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -105,7 +105,10 @@
 static int em3027rtc_read_byte(struct em3027rtc_softc *, uint8_t, uint8_t *);
 static int em3027rtc_write_byte(struct em3027rtc_softc *, uint8_t, uint8_t);
 
-
+static const struct device_compatible_entry compat_data[] = {
+       { "emmicro,em3027",                     0 },
+       { NULL,                                 0 },
+};
 
 static int
 em3027rtc_match(device_t parent, cfdata_t cf, void *aux)
@@ -113,6 +116,10 @@
        const struct i2c_attach_args *ia = aux;
        uint8_t reg;
        int error;
+       int match_result;
+
+       if (iic_use_direct_match(ia, cf, compat_data, &match_result))
+               return match_result;
 
        if (ia->ia_addr != EM3027_ADDR)
                return 0;