CVS commit: src/sys/dev/ic

[Nathanial Sloss]

Module Name:    src
Committed By:   nat
Date:           Tue Aug  8 16:29:00 UTC 2023

Modified Files:
        src/sys/dev/ic: hd44780_subr.c hd44780var.h

Log Message:
Add a detach function.


To generate a diff of this commit:
cvs rdiff -u -r1.21 -r1.22 src/sys/dev/ic/hd44780_subr.c
cvs rdiff -u -r1.8 -r1.9 src/sys/dev/ic/hd44780var.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/dev/ic/hd44780_subr.c
diff -u src/sys/dev/ic/hd44780_subr.c:1.21 src/sys/dev/ic/hd44780_subr.c:1.22
--- src/sys/dev/ic/hd44780_subr.c:1.21	Sat Nov 13 13:52:01 2010
+++ src/sys/dev/ic/hd44780_subr.c	Tue Aug  8 16:29:00 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: hd44780_subr.c,v 1.21 2010/11/13 13:52:01 uebayasi Exp $ */
+/* $NetBSD: hd44780_subr.c,v 1.22 2023/08/08 16:29:00 nat Exp $ */
 
 /*
  * Copyright (c) 2002 Dennis I. Chernoivanov
@@ -32,7 +32,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: hd44780_subr.c,v 1.21 2010/11/13 13:52:01 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: hd44780_subr.c,v 1.22 2023/08/08 16:29:00 nat Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -393,6 +393,15 @@ hd44780_attach_subr(struct hd44780_chip 
 	callout_setfunc(&sc->redraw, hlcd_redraw, sc);
 }
 
+void hd44780_detach(struct hd44780_chip *sc)
+{
+	callout_stop(&sc->redraw);
+	callout_destroy(&sc->redraw);
+
+	if (sc->sc_screen.image)
+		free(sc->sc_screen.image, M_DEVBUF);
+}
+
 int hd44780_init(struct hd44780_chip *sc)
 {
 	int ret;

Index: src/sys/dev/ic/hd44780var.h
diff -u src/sys/dev/ic/hd44780var.h:1.8 src/sys/dev/ic/hd44780var.h:1.9
--- src/sys/dev/ic/hd44780var.h:1.8	Sun Sep  6 06:01:00 2015
+++ src/sys/dev/ic/hd44780var.h	Tue Aug  8 16:29:00 2023
@@ -1,4 +1,4 @@
-/* $NetBSD: hd44780var.h,v 1.8 2015/09/06 06:01:00 dholland Exp $ */
+/* $NetBSD: hd44780var.h,v 1.9 2023/08/08 16:29:00 nat Exp $ */
 
 /*
  * Copyright (c) 2002 Dennis I. Chernoivanov
@@ -136,6 +136,7 @@ struct hd44780_chip {
 	(sc)->sc_readreg((sc), (en), 1)
 
 void hd44780_attach_subr(struct hd44780_chip *);
+void hd44780_detach(struct hd44780_chip *);
 void hd44780_busy_wait(struct hd44780_chip *, uint32_t);
 int  hd44780_init(struct hd44780_chip *);
 int  hd44780_chipinit(struct hd44780_chip *, uint32_t);