[src/trunk]: src/sys/arch/arm/omap add a function to lookup the i2c controlle...

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

details:   https://anonhg.NetBSD.org/src/rev/149a3d550e92
branches:  trunk
changeset: 783631:149a3d550e92
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Jan 01 23:20:24 2013 +0000

description:
add a function to lookup the i2c controller tag for the specified device_t

diffstat:

 sys/arch/arm/omap/omap3_i2c.c |  18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)

diffs (43 lines):

diff -r 6deaba0dd4fc -r 149a3d550e92 sys/arch/arm/omap/omap3_i2c.c
--- a/sys/arch/arm/omap/omap3_i2c.c     Tue Jan 01 19:03:26 2013 +0000
+++ b/sys/arch/arm/omap/omap3_i2c.c     Tue Jan 01 23:20:24 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: omap3_i2c.c,v 1.1 2012/12/31 12:45:49 jmcneill Exp $ */
+/* $NetBSD: omap3_i2c.c,v 1.2 2013/01/01 23:20:24 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2012 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: omap3_i2c.c,v 1.1 2012/12/31 12:45:49 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: omap3_i2c.c,v 1.2 2013/01/01 23:20:24 jmcneill Exp $");
 
 #include "opt_omap.h"
 
@@ -88,6 +88,8 @@
 static int     omap3_i2c_stat(struct omap3_i2c_softc *);
 static int     omap3_i2c_flush(struct omap3_i2c_softc *);
 
+i2c_tag_t      omap3_i2c_get_tag(device_t);
+
 CFATTACH_DECL2_NEW(omap3_i2c, sizeof(struct omap3_i2c_softc),
     omap3_i2c_match, omap3_i2c_attach, NULL, NULL,
     omap3_i2c_rescan, omap3_i2c_childdet);
@@ -434,3 +436,15 @@
 
        return 0;
 }
+
+i2c_tag_t
+omap3_i2c_get_tag(device_t dev)
+{
+       struct omap3_i2c_softc *sc;
+
+       if (dev == NULL)
+               return NULL;
+       sc = device_private(dev);
+
+       return &sc->sc_ic;
+}