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From: <atull@opensource.altera.com>
To: <linux@roeck-us.net>, <jdelvare@suse.de>
Cc: <lm-sensors@lm-sensors.org>, <lgirdwood@gmail.com>,
	<broonie@kernel.org>, <robh+dt@kernel.org>, <pawel.moll@arm.com>,
	<mark.rutland@arm.com>, <ijc+devicetree@hellion.org.uk>,
	<galak@codeaurora.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <delicious.quinoa@gmail.com>,
	<dinguyen@opensource.altera.com>,
	<yvanderv@opensource.altera.com>,
	Alan Tull <atull@opensource.altera.com>
Subject: [PATCH v4 2/4] pmbus: core: add helpers for byte write and read modify write
Date: Wed, 1 Oct 2014 14:05:48 -0500	[thread overview]
Message-ID: <1412190349-16343-3-git-send-email-atull@opensource.altera.com> (raw)
In-Reply-To: <1412190349-16343-1-git-send-email-atull@opensource.altera.com>

From: Alan Tull <atull@opensource.altera.com>

Add two helper functions:
 * pmbus_write_byte_data  = paged byte write
 * pmbus_update_byte_data = paged byte read/modify/write

Signed-off-by: Alan Tull <atull@opensource.altera.com>
---
 drivers/hwmon/pmbus/pmbus_core.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 291d11f..d6c3701 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -253,6 +253,37 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
 }
 EXPORT_SYMBOL_GPL(pmbus_read_byte_data);
 
+int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value)
+{
+	int rv;
+
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+EXPORT_SYMBOL_GPL(pmbus_write_byte_data);
+
+int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg,
+			   u8 mask, u8 value)
+{
+	unsigned int tmp;
+	int rv;
+
+	rv = pmbus_read_byte_data(client, page, reg);
+	if (rv < 0)
+		return rv;
+
+	tmp = (rv & ~mask) | (value & mask);
+
+	if (tmp != rv)
+		rv = pmbus_write_byte_data(client, page, reg, tmp);
+
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_update_byte_data);
+
 /*
  * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
  * a device specific mapping function exists and calls it if necessary.
-- 
1.7.9.5


WARNING: multiple messages have this Message-ID (diff)
From: <atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
To: linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org,
	jdelvare-l3A5Bk7waGM@public.gmane.org
Cc: lm-sensors-GZX6beZjE8VD60Wz+7aTrA@public.gmane.org,
	lgirdwood-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	pawel.moll-5wv7dgnIgG8@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org,
	galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	delicious.quinoa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	dinguyen-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org,
	yvanderv-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org,
	Alan Tull
	<atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
Subject: [PATCH v4 2/4] pmbus: core: add helpers for byte write and read modify write
Date: Wed, 1 Oct 2014 14:05:48 -0500	[thread overview]
Message-ID: <1412190349-16343-3-git-send-email-atull@opensource.altera.com> (raw)
In-Reply-To: <1412190349-16343-1-git-send-email-atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>

From: Alan Tull <atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>

Add two helper functions:
 * pmbus_write_byte_data  = paged byte write
 * pmbus_update_byte_data = paged byte read/modify/write

Signed-off-by: Alan Tull <atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx@public.gmane.org>
---
 drivers/hwmon/pmbus/pmbus_core.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 291d11f..d6c3701 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -253,6 +253,37 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
 }
 EXPORT_SYMBOL_GPL(pmbus_read_byte_data);
 
+int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value)
+{
+	int rv;
+
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+EXPORT_SYMBOL_GPL(pmbus_write_byte_data);
+
+int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg,
+			   u8 mask, u8 value)
+{
+	unsigned int tmp;
+	int rv;
+
+	rv = pmbus_read_byte_data(client, page, reg);
+	if (rv < 0)
+		return rv;
+
+	tmp = (rv & ~mask) | (value & mask);
+
+	if (tmp != rv)
+		rv = pmbus_write_byte_data(client, page, reg, tmp);
+
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_update_byte_data);
+
 /*
  * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
  * a device specific mapping function exists and calls it if necessary.
-- 
1.7.9.5

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WARNING: multiple messages have this Message-ID (diff)
From: <atull@opensource.altera.com>
To: linux@roeck-us.net, jdelvare@suse.de
Cc: lm-sensors@lm-sensors.org, lgirdwood@gmail.com,
	broonie@kernel.org, robh+dt@kernel.org, pawel.moll@arm.com,
	mark.rutland@arm.com, ijc+devicetree@hellion.org.uk,
	galak@codeaurora.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, delicious.quinoa@gmail.com,
	dinguyen@opensource.altera.com, yvanderv@opensource.altera.com,
	Alan Tull <atull@opensource.altera.com>
Subject: [lm-sensors] [PATCH v4 2/4] pmbus: core: add helpers for byte write and read modify write
Date: Wed, 01 Oct 2014 19:05:48 +0000	[thread overview]
Message-ID: <1412190349-16343-3-git-send-email-atull@opensource.altera.com> (raw)
In-Reply-To: <1412190349-16343-1-git-send-email-atull@opensource.altera.com>

From: Alan Tull <atull@opensource.altera.com>

Add two helper functions:
 * pmbus_write_byte_data  = paged byte write
 * pmbus_update_byte_data = paged byte read/modify/write

Signed-off-by: Alan Tull <atull@opensource.altera.com>
---
 drivers/hwmon/pmbus/pmbus_core.c |   31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 291d11f..d6c3701 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -253,6 +253,37 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
 }
 EXPORT_SYMBOL_GPL(pmbus_read_byte_data);
 
+int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, u8 value)
+{
+	int rv;
+
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
+
+	return i2c_smbus_write_byte_data(client, reg, value);
+}
+EXPORT_SYMBOL_GPL(pmbus_write_byte_data);
+
+int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg,
+			   u8 mask, u8 value)
+{
+	unsigned int tmp;
+	int rv;
+
+	rv = pmbus_read_byte_data(client, page, reg);
+	if (rv < 0)
+		return rv;
+
+	tmp = (rv & ~mask) | (value & mask);
+
+	if (tmp != rv)
+		rv = pmbus_write_byte_data(client, page, reg, tmp);
+
+	return rv;
+}
+EXPORT_SYMBOL_GPL(pmbus_update_byte_data);
+
 /*
  * _pmbus_read_byte_data() is similar to pmbus_read_byte_data(), but checks if
  * a device specific mapping function exists and calls it if necessary.
-- 
1.7.9.5


_______________________________________________
lm-sensors mailing list
lm-sensors@lm-sensors.org
http://lists.lm-sensors.org/mailman/listinfo/lm-sensors

  parent reply	other threads:[~2014-10-01 19:12 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-10-01 19:05 [PATCH v4 0/4] regulator support for pmbus and ltc2978 atull
2014-10-01 19:05 ` [lm-sensors] " atull
2014-10-01 19:05 ` atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx
2014-10-01 19:05 ` [PATCH v4 1/4] hwmon: ltc2978: device tree bindings documentation atull
2014-10-01 19:05   ` [lm-sensors] " atull
2014-10-01 19:05   ` atull
2014-10-01 19:05 ` atull [this message]
2014-10-01 19:05   ` [lm-sensors] [PATCH v4 2/4] pmbus: core: add helpers for byte write and read modify write atull
2014-10-01 19:05   ` atull-yzvPICuk2ABMcg4IHK0kFoH6Mc4MB0Vx
2014-10-02  4:05   ` Guenter Roeck
2014-10-02  4:05     ` [lm-sensors] " Guenter Roeck
2014-10-02  4:05     ` Guenter Roeck
2014-10-01 19:05 ` [PATCH v4 3/4] pmbus: add regulator support atull
2014-10-01 19:05   ` [lm-sensors] " atull
2014-10-01 19:05   ` atull
2014-10-02 11:20   ` Mark Brown
2014-10-02 11:20     ` [lm-sensors] " Mark Brown
2014-10-02 13:22     ` Guenter Roeck
2014-10-02 13:22       ` [lm-sensors] " Guenter Roeck
2014-10-02 18:43       ` atull
2014-10-02 18:43         ` [lm-sensors] " atull
2014-10-02 18:43         ` atull
2014-10-01 20:07 ` [PATCH v4 0/4] regulator support for pmbus and ltc2978 Guenter Roeck
2014-10-01 20:07   ` [lm-sensors] " Guenter Roeck
2014-10-01 20:07   ` Guenter Roeck
2014-10-01 20:20   ` atull
2014-10-01 20:20     ` [lm-sensors] " atull
2014-10-01 20:20     ` atull
2014-10-02  3:25 ` Guenter Roeck
2014-10-02  3:25   ` [lm-sensors] " Guenter Roeck

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