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[PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data

Started byMilo Kim <milo.kim@ti.com>
First post2015-08-25 08:00 +0200
Last post2015-08-25 20:40 +0200
Articles 3 — 2 participants

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  [PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data Milo Kim <milo.kim@ti.com> - 2015-08-25 08:00 +0200
    Re: [PATCH 1/2] regulator:lp872x: use the private data instead of  updating I2C device platform data Mark Brown <broonie@kernel.org> - 2015-08-25 20:40 +0200
    Applied "regulator: lp872x: use the private data instead of updating I2C device platform data" to the regulator tree Mark Brown <broonie@kernel.org> - 2015-08-25 20:40 +0200

#1212706 — [PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data

FromMilo Kim <milo.kim@ti.com>
Date2015-08-25 08:00 +0200
Subject[PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data
Message-ID<q1fr4-5Zp-7@gated-at.bofh.it>
Currently, lp872x driver parses the DT and copies values into the
'cl->dev.platform_data' if 'of_node' exists.
This may have architectural issue. Platform data is configurable through
the DT or I2C board info inside the platform area.
However, lp872x driver changes this configuration when it is loaded.

The lp872x driver should get data from the platform side and use the private
data, 'lp872x->pdata' instead of changing the original platform data.

Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <milo.kim@ti.com>
---
 drivers/regulator/lp872x.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index 3de328a..9142c1a 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -903,6 +903,7 @@ static struct lp872x_platform_data
 static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 {
 	struct lp872x *lp;
+	struct lp872x_platform_data *pdata;
 	int ret;
 	const int lp872x_num_regulators[] = {
 		[LP8720] = LP8720_NUM_REGULATORS,
@@ -910,8 +911,10 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	};
 
 	if (cl->dev.of_node)
-		cl->dev.platform_data = lp872x_populate_pdata_from_dt(&cl->dev,
+		pdata = lp872x_populate_pdata_from_dt(&cl->dev,
 					      (enum lp872x_id)id->driver_data);
+	else
+		pdata = dev_get_platdata(&cl->dev);
 
 	lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL);
 	if (!lp)
@@ -927,7 +930,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	}
 
 	lp->dev = &cl->dev;
-	lp->pdata = dev_get_platdata(&cl->dev);
+	lp->pdata = pdata;
 	lp->chipid = id->driver_data;
 	i2c_set_clientdata(cl, lp);
 
-- 
1.9.1

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#1213232 — Re: [PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data

FromMark Brown <broonie@kernel.org>
Date2015-08-25 20:40 +0200
SubjectRe: [PATCH 1/2] regulator:lp872x: use the private data instead of updating I2C device platform data
Message-ID<q1riy-6ju-11@gated-at.bofh.it>
In reply to#1212706

[Multipart message — attachments visible in raw view] — view raw

On Tue, Aug 25, 2015 at 02:54:11PM +0900, Milo Kim wrote:
> Currently, lp872x driver parses the DT and copies values into the
> 'cl->dev.platform_data' if 'of_node' exists.

Please use the normal style for subject lines with a space between the
subsystem and the driver.

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#1213234 — Applied "regulator: lp872x: use the private data instead of updating I2C device platform data" to the regulator tree

FromMark Brown <broonie@kernel.org>
Date2015-08-25 20:40 +0200
SubjectApplied "regulator: lp872x: use the private data instead of updating I2C device platform data" to the regulator tree
Message-ID<q1riy-6ju-21@gated-at.bofh.it>
In reply to#1212706
The patch

   regulator: lp872x: use the private data instead of updating I2C device platform data

has been applied to the regulator tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From d9ffae15f7b1933c71dfb7c5e8ef61296d2833d7 Mon Sep 17 00:00:00 2001
From: Milo Kim <milo.kim@ti.com>
Date: Tue, 25 Aug 2015 14:54:11 +0900
Subject: [PATCH] regulator: lp872x: use the private data instead of updating
 I2C device platform data

Currently, lp872x driver parses the DT and copies values into the
'cl->dev.platform_data' if 'of_node' exists.
This may have architectural issue. Platform data is configurable through
the DT or I2C board info inside the platform area.
However, lp872x driver changes this configuration when it is loaded.

The lp872x driver should get data from the platform side and use the private
data, 'lp872x->pdata' instead of changing the original platform data.

Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
 drivers/regulator/lp872x.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index 3de328ab41f3..9142c1adc70c 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -903,6 +903,7 @@ static struct lp872x_platform_data
 static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 {
 	struct lp872x *lp;
+	struct lp872x_platform_data *pdata;
 	int ret;
 	const int lp872x_num_regulators[] = {
 		[LP8720] = LP8720_NUM_REGULATORS,
@@ -910,8 +911,10 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	};
 
 	if (cl->dev.of_node)
-		cl->dev.platform_data = lp872x_populate_pdata_from_dt(&cl->dev,
+		pdata = lp872x_populate_pdata_from_dt(&cl->dev,
 					      (enum lp872x_id)id->driver_data);
+	else
+		pdata = dev_get_platdata(&cl->dev);
 
 	lp = devm_kzalloc(&cl->dev, sizeof(struct lp872x), GFP_KERNEL);
 	if (!lp)
@@ -927,7 +930,7 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	}
 
 	lp->dev = &cl->dev;
-	lp->pdata = dev_get_platdata(&cl->dev);
+	lp->pdata = pdata;
 	lp->chipid = id->driver_data;
 	i2c_set_clientdata(cl, lp);
 
-- 
2.5.0

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