CVS commit: src/sys/dev/i2c

[Jonathan A. Kollasch]

Module Name:    src
Committed By:   jakllsch
Date:           Wed Jan  8 16:45:14 UTC 2014

Modified Files:
        src/sys/dev/i2c: tps65217pmic.c

Log Message:
Add unused tps65217pmic_reg_write() function.


To generate a diff of this commit:
cvs rdiff -u -r1.7 -r1.8 src/sys/dev/i2c/tps65217pmic.c

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/i2c/tps65217pmic.c
diff -u src/sys/dev/i2c/tps65217pmic.c:1.7 src/sys/dev/i2c/tps65217pmic.c:1.8
--- src/sys/dev/i2c/tps65217pmic.c:1.7	Tue Dec 31 14:51:46 2013
+++ src/sys/dev/i2c/tps65217pmic.c	Wed Jan  8 16:45:14 2014
@@ -1,4 +1,4 @@
-/*	$NetBSD: tps65217pmic.c,v 1.7 2013/12/31 14:51:46 skrll Exp $ */
+/*	$NetBSD: tps65217pmic.c,v 1.8 2014/01/08 16:45:14 jakllsch Exp $ */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tps65217pmic.c,v 1.7 2013/12/31 14:51:46 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tps65217pmic.c,v 1.8 2014/01/08 16:45:14 jakllsch Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -131,6 +131,8 @@ static int tps65217pmic_match(device_t, 
 static void tps65217pmic_attach(device_t, device_t, void *);
 
 static uint8_t tps65217pmic_reg_read(struct tps65217pmic_softc *, uint8_t);
+static void tps65217pmic_reg_write(struct tps65217pmic_softc *, uint8_t,
+    uint8_t);
 
 static void tps65217pmic_reg_refresh(struct tps65217pmic_softc *);
 
@@ -606,6 +608,29 @@ tps65217pmic_reg_read(struct tps65217pmi
 	return rv;
 }
 
+static void __unused
+tps65217pmic_reg_write(struct tps65217pmic_softc *sc, uint8_t reg, uint8_t data)
+{
+	uint8_t wbuf[2];
+
+	if (iic_acquire_bus(sc->sc_tag, I2C_F_POLL) != 0) {
+		aprint_error_dev(sc->sc_dev, "cannot acquire bus for write\n");
+		return;
+	}
+
+	wbuf[0] = reg;
+	wbuf[1] = data;
+
+	if (iic_exec(sc->sc_tag, I2C_OP_WRITE_WITH_STOP, sc->sc_addr, wbuf,
+	    2, NULL, 0, I2C_F_POLL)) {
+		aprint_error_dev(sc->sc_dev, "cannot execute I2C write\n");
+		iic_release_bus(sc->sc_tag, I2C_F_POLL);
+		return;
+	}
+
+	iic_release_bus(sc->sc_tag, I2C_F_POLL);
+}
+
 static void
 tps65217pmic_envsys_register(struct tps65217pmic_softc *sc)
 {