linux-kernel - [PATCHv3 4/9] mfd: twl-core: Add twl_i2c_read/write

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Message-Id: <1394472329-15485-5-git-send-email-sre@debian.org>
Date:	Mon, 10 Mar 2014 18:25:24 +0100
From:	Sebastian Reichel <sre@...ian.org>
To:	Sebastian Reichel <sre@...g0.de>,
	Marek Belisko <marek@...delico.com>,
	Jonathan Cameron <jic23@...nel.org>
Cc:	Lee Jones <lee.jones@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-iio@...r.kernel.org, Sebastian Reichel <sre@...ian.org>
Subject: [PATCHv3 4/9] mfd: twl-core: Add twl_i2c_read/write_u16

Add a simple twl_i2c_read/write_u16 wrapper over
the twl_i2c_read/write, which is similar to the
twl_i2c_read/write_u8 wrapper.

Signed-off-by: Sebastian Reichel <sre@...ian.org>
Acked-by: Lee Jones <lee.jones@...aro.org>
Acked-by: Jonathan Cameron <jic23@...nel.org>
Tested-by: Marek Belisko <marek@...delico.com>
---
 include/linux/i2c/twl.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index ade1c06..d2b1670 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -195,6 +195,18 @@ static inline int twl_i2c_read_u8(u8 mod_no, u8 *val, u8 reg) {
 	return twl_i2c_read(mod_no, val, reg, 1);
 }
 
+static inline int twl_i2c_write_u16(u8 mod_no, u16 val, u8 reg) {
+	val = cpu_to_le16(val);
+	return twl_i2c_write(mod_no, (u8*) &val, reg, 2);
+}
+
+static inline int twl_i2c_read_u16(u8 mod_no, u16 *val, u8 reg) {
+	int ret;
+	ret = twl_i2c_read(mod_no, (u8*) val, reg, 2);
+	*val = le16_to_cpu(*val);
+	return ret;
+}
+
 int twl_get_type(void);
 int twl_get_version(void);
 int twl_get_hfclk_rate(void);
-- 
1.9.0

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