c_imx_init_recovery_info() before
> i2c_register_adapter().
>
> Signed-off-by: Gao Pan <b54...@freescale.com>
> Signed-off-by: Fugang Duan <b38...@freescale.com>
Acked-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
I wonder why your S-o-b line isn't below Fugang Duan's. Th
do this.
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Hello,
Cc += Linus Walleij, linux-gpio
On Wed, Nov 18, 2015 at 04:59:11PM -0600, Li Yang wrote:
> On Wed, Nov 18, 2015 at 1:24 AM, Uwe Kleine-König
> <u.kleine-koe...@pengutronix.de> wrote:
> > On Tue, Nov 17, 2015 at 06:02:59PM -0600, Li Yang wrote:
> >> @@ -11
l)) {
ret = PTR_ERR(i2c_imx->pinctrl);
goto errorhandling;
}
if (i2c_imx->pinctrl)
i2c_imx_init_recovery_info(i2c_imx, pdev);
else
dev_info(>dev, "can't get pinctrl, bus recovery feature
disabled\n");
right
Hello Wolfram,
On Thu, Nov 12, 2015 at 08:52:38AM +0100, Wolfram Sang wrote:
> On Thu, Nov 12, 2015 at 08:44:47AM +0100, Uwe Kleine-König wrote:
> > Other than that, the NULL pointer dereference should only happen if the
> > device was bound using the driver name. That might be wor
On Thu, Nov 12, 2015 at 09:48:37AM +0100, Wolfram Sang wrote:
> On Thu, Nov 12, 2015 at 09:09:26AM +0100, Uwe Kleine-König wrote:
> > Hello Wolfram,
> >
> > On Thu, Nov 12, 2015 at 08:52:38AM +0100, Wolfram Sang wrote:
> > > On Thu, Nov 12, 2015 at 08:44:47AM
_device(dev, drv))
> return 1;
>
> return 0;
> }
That's equivalent to
if (dev->of_node)
return of_driver_match_device(dev, drv);
and was already suggested in the thread referenced from my reply to
http
- data->byte = simple_strtol(p + 1, NULL, 16);
> + err = kstrtou8(p + 1, 16, >byte);
> + if (err)
> + return -EPROTO;
> return 0;
This is nearly equivalent to the probably m
e using
priv->devtype = (enum rcar_i2c_type)of_device_get_match_data(dev)
if good enough?
Other than that, the NULL pointer dereference should only happen if the
device was bound using the driver name. That might be worth to point out
in the commit log. So maybe make (in a separate
t; + rinfo->sda_gpio = of_get_named_gpio(pdev->dev.of_node, "sda-gpios", 0);
> + rinfo->scl_gpio = of_get_named_gpio(pdev->dev.of_node, "scl-gpios", 0);
Acked-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
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thout following all that fwnode discussion:
gpiod_get et al. should work for you here, doesn't it? It just takes a
struct device * and I'm happy with it.
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registration failed\n");
> - goto clk_disable;
> + goto rpm_disable;
Is it right, that here the same error path is taken as when
pm_runtime_get_sync fails above? Even if it works now, not having the
error cleanup path undo all things in reverse order is a danger to
;pins.sda);
> goto clk_disable;
> }
>
> if (IS_ERR(i2c_imx->pins.scl)) {
> ret = PTR_ERR(i2c_imx->pins.scl);
> goto clk_disable;
> }
As said above, here you need an
Hello,
On Tue, Sep 08, 2015 at 04:18:41PM +0200, Linus Walleij wrote:
> On Mon, Sep 7, 2015 at 10:00 AM, Uwe Kleine-König
> <u.kleine-koe...@pengutronix.de> wrote:
> > [Me]
>
> >> If the use case is around the i2c traffic, it is a mode related to I2C,
> >>
Hallo Linus,
On Tue, Aug 25, 2015 at 04:18:16PM +0200, Linus Walleij wrote:
> On Wed, Aug 19, 2015 at 9:02 AM, Uwe Kleine-König
> <u.kleine-koe...@pengutronix.de> wrote:
> > On Wed, Aug 19, 2015 at 03:44:49AM +, Gao Pandy wrote:
> >> From: Uwe Kleine
ch clue about runtime pm this doesn't mean much.
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;adapter.nr = pdev->id;
> + i2c_imx->adapter.dev.of_node = pdev->dev.of_node;
> + i2c_imx->adapter.bus_recovery_info = _imx_bus_recovery_info;
In a former review round I suggested to only do this assignment after
the two gpios were aquired successfully. Then the above che
Hello,
Cc += Linus Walleij
On Wed, Aug 19, 2015 at 03:44:49AM +, Gao Pandy wrote:
From: Uwe Kleine-König mailto:u.kleine-koe...@pengutronix.de Sent:
Thursday, August 13, 2015 4:15 PM
+static void i2c_imx_prepare_recovery(struct i2c_adapter *adap) {
+ struct imx_i2c_struct *i2c_imx
=
+ devm_gpiod_get_optional(pdev-dev, scl-gpio, GPIOD_OUT_HIGH);
As already noticed in the v2 thread: I think GPIOD_OUT_HIGH is wrong.
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there is no justification to
ignore the error code.
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, recover-scl, 0);
I'd use devm_gpiod_get_optional here.
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Hello,
$Subject ~= s/warnning/warning/
and I'd rather write Fix instead of Remove.
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Hello,
On Tue, Jul 07, 2015 at 03:37:49PM +0200, Jan Lübbe wrote:
On Mi, 2014-11-26 at 19:05 +0200, Grygorii Strashko wrote:
On 11/26/2014 06:04 PM, Uwe Kleine-König wrote:
On Wed, Nov 26, 2014 at 03:59:53PM +0200, Grygorii Strashko wrote:
Having a board where the I2C bus locks up
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Hello,
On Wed, May 20, 2015 at 09:03:40PM +0800, Yingjoe Chen wrote:
On Wed, 2015-05-20 at 10:57 +0200, Uwe Kleine-König wrote:
On Tue, May 19, 2015 at 12:40:08AM +0800, Eddie Huang wrote:
+ if (i2c-speed_hz MAX_HS_MODE_SPEED)
+ return -EINVAL;
According to the plan to tune
Hello,
On Wed, May 13, 2015 at 09:20:48AM +0200, Michael Lawnick wrote:
Am 13.05.2015 um 08:55 schrieb ext Uwe Kleine-König:
On Wed, May 13, 2015 at 08:19:59AM +0200, Michael Lawnick wrote:
Am 12.05.2015 um 21:12 schrieb Wolfram Sang:
Doesn't look right. -EAGAIN means arbitration lost which
Hello Stephen,
On Wed, May 06, 2015 at 09:57:37AM -0600, Stephen Warren wrote:
On 05/06/2015 02:09 AM, Uwe Kleine-König wrote:
On Wed, May 06, 2015 at 09:53:55AM +0200, Marc Dietrich wrote:
Am Mittwoch, 6. Mai 2015, 08:59:28 schrieb Uwe Kleine-König:
On Tue, May 05, 2015 at 12:55:13PM +0200
by timing? A
sleeping gpio is probably slower, but this shouldn't affect correctness
of the protocol implementation, should it?
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to
-speak a custom protocol or to emulate some other device.
\o/
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Sang wsa+rene...@sang-engineering.com
Acked-by: Uwe Kleine-König u.kleine-koe...@pengutronix.de
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Moin Wolfram,
On Fri, Mar 20, 2015 at 08:15:04AM +0100, Wolfram Sang wrote:
On Thu, Mar 19, 2015 at 09:17:51PM +0100, Uwe Kleine-König wrote:
Hello Wolfram,
On Thu, Mar 12, 2015 at 01:42:01PM +0100, Wolfram Sang wrote:
From: Wolfram Sang wsa+rene...@sang-engineering.com
After
to only need a
single call to the slave callback when an action by the backend
is required.
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for
managing a position pointer from the slave-eeprom driver. Then, we'd
have only one trusted implementation of EEPROM-alike behaviour and
people can concentrate on reacting to reads/writes.
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Kleine-König u.kleine-koe...@pengutronix.de
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Hello,
On Tue, Mar 17, 2015 at 08:00:40PM +0530, Jayachandran C. wrote:
On Sat, Mar 14, 2015 at 09:01:24PM +0100, Uwe Kleine-König wrote:
On Sat, Mar 14, 2015 at 05:18:37PM +0530, Jayachandran C. wrote:
On Fri, Mar 13, 2015 at 11:24:06AM +0100, Uwe Kleine-König wrote:
On Fri, Mar 13
Hello,
On Sat, Mar 14, 2015 at 05:18:37PM +0530, Jayachandran C. wrote:
On Fri, Mar 13, 2015 at 11:24:06AM +0100, Uwe Kleine-König wrote:
On Fri, Mar 13, 2015 at 11:59:58AM +0530, Jayachandran C wrote:
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c
b/drivers/i2c/busses/i2c-xlp9xx.c
new
);
+ xlp9xx_write_i2c_reg(priv, XLP9XX_I2C_DIV, prescale);
+ xlp9xx_write_i2c_reg(priv, XLP9XX_I2C_INTEN, 0);
+
+ return 0;
+}
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...@ideasonboard.com
I sent the same patch with a slightly different motivation two weeks
ago: http://article.gmane.org/gmane.linux.drivers.i2c/21972
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Hello,
On Fri, Feb 27, 2015 at 09:46:11AM -0800, Dmitry Torokhov wrote:
On Fri, Feb 27, 2015 at 06:05:45PM +0100, Uwe Kleine-König wrote:
On Fri, Feb 27, 2015 at 07:29:30AM -0800, Dmitry Torokhov wrote:
On February 27, 2015 6:37:25 AM PST, Thomas Petazzoni
thomas.petazz...@free
is slightly changed here by using it. Now if a reset gpio is specified
and getting hold on it fails, pca954x_probe fails, too.
Signed-off-by: Uwe Kleine-König u.kleine-koe...@pengutronix.de
---
drivers/i2c/muxes/i2c-mux-pca954x.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
the driver. Then i2c_del_adapter is
called which frees the resources managed by the core, then the device's
completion irq triggers and the freed adapter is used which probably
results in an oops.
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mtk_i2c and add a struct i2c_msg *msg instead. Up to you to
decide.
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Hello,
On Wed, Jan 21, 2015 at 08:49:40PM +0800, Yingjoe Chen wrote:
On Wed, 2015-01-21 at 09:15 +0100, Uwe Kleine-König wrote:
On Wed, Jan 21, 2015 at 02:30:09PM +0800, Yingjoe Chen wrote:
On Wed, 2015-01-21 at 11:13 +0800, Eddie Huang wrote:
...
+ ret = -EINVAL
over the other in this case.
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Hello Wolfram,
On Sun, Jan 18, 2015 at 12:06:58PM +0100, Wolfram Sang wrote:
On Sun, Jan 18, 2015 at 10:47:41AM +0100, Uwe Kleine-König wrote:
On Sun, Jan 18, 2015 at 10:14:04AM +0100, Arend van Spriel wrote:
On 01/17/15 00:42, Ray Jui wrote:
+complete_all(iproc_i2c-done
(mtk_i2c_of_match),
+ },
+};
+
+module_platform_driver(mtk_i2c_driver);
+
+MODULE_LICENSE(GPL);
MODULE_LICENSE(GPL v2);
+MODULE_DESCRIPTION(MediaTek I2C Bus Driver);
+MODULE_AUTHOR(Xudong Chen xudong.c...@mediatek.com);
Best regards
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Hello,
On Sun, Jan 18, 2015 at 12:46:51PM +0100, Arend van Spriel wrote:
On 01/18/15 12:17, Uwe Kleine-König wrote:
Hello Wolfram,
On Sun, Jan 18, 2015 at 12:06:58PM +0100, Wolfram Sang wrote:
On Sun, Jan 18, 2015 at 10:47:41AM +0100, Uwe Kleine-König wrote:
On Sun, Jan 18, 2015 at 10:14
Hello,
On Fri, Jan 16, 2015 at 02:09:28PM -0800, Ray Jui wrote:
On 1/15/2015 12:41 AM, Uwe Kleine-König wrote:
On Wed, Jan 14, 2015 at 02:23:32PM -0800, Ray Jui wrote:
+ */
+ val = 1 M_CMD_START_BUSY_SHIFT;
+ if (msg-flags I2C_M_RD) {
+ val |= (M_CMD_PROTOCOL_BLK_RD
Hello,
On Sat, Jan 17, 2015 at 11:58:33AM -0800, Ray Jui wrote:
On 1/17/2015 8:01 AM, Uwe Kleine-König wrote:
On Fri, Jan 16, 2015 at 02:09:28PM -0800, Ray Jui wrote:
On 1/15/2015 12:41 AM, Uwe Kleine-König wrote:
On Wed, Jan 14, 2015 at 02:23:32PM -0800, Ray Jui wrote
Hello,
On Sat, Jan 17, 2015 at 12:51:50PM -0800, Ray Jui wrote:
On 1/17/2015 12:18 PM, Uwe Kleine-König wrote:
Hello,
On Sat, Jan 17, 2015 at 11:58:33AM -0800, Ray Jui wrote:
On 1/17/2015 8:01 AM, Uwe Kleine-König wrote:
On Fri, Jan 16, 2015 at 02:09:28PM -0800, Ray Jui wrote:
On 1
-iproc-i2c },
{},
};
No, there is no need, see above.
If something is still unclear, don't hesitate to ask.
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this is specified to be a must, but I'd add spaces after { and
before }.
+ {},
It's a good habit to write this as
{ /* sentinel */ }
without trailing comma.
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this:
compatible = brcm,$mysoc-iproc-i2c, brcm,iproc-i2c;
(or maybe s/$mysoc-iproc-i2c/$mysoc-i2c/).
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cinoptions=(,:
if has(autocmd)
filetype plugin indent on
endif
to your .vimrc. Then while typing vim does the indention right and
consistent, and with the = command you can reindent.
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= bcm_iproc_i2c_remove,
+};
+module_platform_driver(bcm_iproc_i2c_driver);
+
+MODULE_AUTHOR(Ray Jui r...@broadcom.com);
+MODULE_DESCRIPTION(Broadcom iProc I2C Driver);
+MODULE_LICENSE(GPL v2);
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to stop the next person converting it to that.
(And if not, please fix accordingly to use deferred probing.)
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Serial Interface
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. If not available use
the default maximum timing from the specification.
(Otherwise I think the comma needs to go after there in your
sentence.)
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it would be good to check for these
limits, too.
strlcpy(i2c-adap.name, rk3x-i2c, sizeof(i2c-adap.name));
i2c-adap.owner = THIS_MODULE;
i2c-adap.algo = rk3x_i2c_algorithm;
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should debate in a followup patch.
Sounds all reasonable. I'd not address 3 and 4 in this patch, but do
this in separate one. (That's what I intended from the beginning, just
failed to point that out explicitly.)
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Hi Jean,
On Fri, Nov 28, 2014 at 02:48:13PM +0100, Jean Delvare wrote:
On Tue, 25 Nov 2014 22:14:32 +0100, Uwe Kleine-König wrote:
On Wed, Jan 08, 2014 at 02:28:49PM +0100, Jean Delvare wrote:
Having looked at the code in deeper detail, I think I understand what
is going on. The problem
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Hello Grygorii,
On Wed, Nov 26, 2014 at 06:31:22PM +0200, Grygorii Strashko wrote:
On 11/26/2014 05:57 PM, Uwe Kleine-König wrote:
I don't understand your use of query in the subject and later in the
commit log. Do you mean send?
will change to generate. Ok?
yes that would be better
adapter.algo_data instead
of calling dev_set/get_drvdata(). This would let us fix all the drivers
at once.
I'll bring the topic upstream for discussion.
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that fails to compile can even start probing
... :-)
Anyhow, it would be nice to quote the compiler error you fix here and
point out the patch that failed to add the needed dependency.
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Hey Wolfram,
On Mon, Nov 24, 2014 at 10:31:16AM +0100, Wolfram Sang wrote:
On Mon, Nov 24, 2014 at 09:05:09AM +0100, Uwe Kleine-König wrote:
Hello Max,
On Mon, Nov 24, 2014 at 01:32:27AM +0100, Max Schwarz wrote:
Now that we are using the clk notifier framework we get compile errors
with better commit msg in case you still want to take that
instead of my quick fix.
Thanks for your quick turn around.
Uwe
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Fixes: 5a6f1566f6a0 (i2c: rk3x: handle dynamic clock rate changes correctly)
Signed-off-by: Max Schwarz max.schw...@online.de
---
Wolfram,
here is a version with *even* better commit msg in case you still want to
take that instead of my quick fix.
Acked-by: Uwe Kleine-König u.kleine-koe
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Hi Grygorii,
On Mon, Nov 24, 2014 at 03:15:58PM +0200, Grygorii Strashko wrote:
On 11/23/2014 07:04 PM, Uwe Kleine-König wrote:
On Thu, Nov 20, 2014 at 12:03:08PM +0200, Grygorii Strashko wrote:
@@ -664,6 +759,7 @@ static int davinci_i2c_probe(struct platform_device
*pdev
Hello Grygorii,
On Mon, Nov 24, 2014 at 03:34:35PM +0200, Grygorii Strashko wrote:
On 11/23/2014 10:33 PM, Uwe Kleine-König wrote:
A call to .master_xfer with a message sequence implicitly expects ACKs
from the slave and doesn't tell anything about what should be done on a
NAK. So IMHO you
Hi Grygorii,
On Mon, Nov 24, 2014 at 03:26:10PM +0200, Grygorii Strashko wrote:
On 11/23/2014 10:36 PM, Uwe Kleine-König wrote:
On Fri, Nov 21, 2014 at 09:33:22PM +0200, Grygorii Strashko wrote:
On 11/21/2014 09:07 PM, Uwe Kleine-König wrote:
On Thu, Nov 20, 2014 at 12:03:07PM +0200
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a comment.
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, but starting to get experience with byte
banging is probably OK.
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Hello Grygorii,
On Fri, Nov 21, 2014 at 05:33:37PM +0200, Grygorii Strashko wrote:
On 11/21/2014 03:10 PM, Uwe Kleine-König wrote:
On Fri, Nov 21, 2014 at 02:48:57PM +0200, Grygorii Strashko wrote:
On 11/21/2014 12:19 AM, Uwe Kleine-König wrote:
diff --git a/drivers/i2c/busses/i2c
Hello Grygorii,
On Fri, Nov 21, 2014 at 09:33:22PM +0200, Grygorii Strashko wrote:
On 11/21/2014 09:07 PM, Uwe Kleine-König wrote:
On Thu, Nov 20, 2014 at 12:03:07PM +0200, Grygorii Strashko wrote:
Just another general comment about the driver that doesn't influence the
correctness
Hello,
On Fri, Nov 21, 2014 at 02:48:57PM +0200, Grygorii Strashko wrote:
On 11/21/2014 12:19 AM, Uwe Kleine-König wrote:
diff --git a/drivers/i2c/busses/i2c-davinci.c
b/drivers/i2c/busses/i2c-davinci.c
index 9bbfb8f..2cef115 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers
On Fri, Nov 21, 2014 at 08:19:41AM +0100, Uwe Kleine-König wrote:
Hello Wolfram,
this mail is thematically more a reply to patch 1 and maybe just serves
my understanding of the slave support.
On Tue, Nov 18, 2014 at 05:04:54PM +0100, Wolfram Sang wrote:
From: Wolfram Sang wsa+rene
Karicheri m-kariche...@ti.com
Signed-off-by: Grygorii Strashko grygorii.stras...@ti.com
Sounds and looks sensible
Acked-by: Uwe Kleine-König u.kleine-koe...@pengutronix.de
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wonder how often this reset triggers. Is the bus in
question less stable than others?
Best regards
Uwe
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an error if irq=-EPROBE_DEFER.
+ return irq;
}
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?)
Best regards
Uwe
return -EREMOTEIO;
}
return -EIO;
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wouldn't need device tree stuff, the
driver would just offer the device if supported. Userspace then could
care about the rest (slave address, functionality, ...).
Best regards
Uwe
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Hello,
On Thu, Aug 14, 2014 at 10:09:42AM +, fugang.d...@freescale.com wrote:
From: Uwe Kleine-König u.kleine-koe...@pengutronix.de Sent: Thursday,
August 14, 2014 5:42 PM
On Thu, Aug 14, 2014 at 04:29:14PM +0800, Fugang Duan wrote:
diff --git a/drivers/i2c/busses/i2c-imx.c
b/drivers
Hello,
On Fri, Aug 08, 2014 at 12:07:42PM +0200, Julia Lawall wrote:
From: Julia Lawall julia.law...@lip6.fr
Of_node_put supports NULL as its argument, so the initial test is not
necessary.
Suggested by Uwe Kleine-König.
Thanks for picking up my suggestion.
The semantic patch that fixes
On Thu, Jul 17, 2014 at 03:40:00PM +0200, Wolfram Sang wrote:
On Fri, Jul 11, 2014 at 10:50:14AM +0200, Uwe Kleine-König wrote:
Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect energymicro,location
but fall back
Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect energymicro,location
but fall back to the previously introduced name efm32,location.
Cc: Olof Johansson o...@lixom.net
Signed-off-by: Uwe Kleine-König u.kleine-koe
Olof Johansson pointed out that usually the company name is picked as
namespace prefix to specific properties. So expect energymicro,location
but fall back to the previously introduced name efm32,location.
Cc: Olof Johansson o...@lixom.net
Signed-off-by: Uwe Kleine-König u.kleine-koe
On Wed, May 07, 2014 at 01:20:31PM +0900, Jingoo Han wrote:
The site-specific OOM messages are unnecessary, because they
duplicate the MM subsystem generic OOM message.
Signed-off-by: Jingoo Han jg1@samsung.com
Acked-by: Uwe Kleine-König u.kleine-koe...@pengutronix.de
Thanks
Uwe
mailing list
linux-arm-ker...@lists.infradead.org
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Hello,
On Mon, Apr 07, 2014 at 10:37:36AM +0400, Alexander Shiyan wrote:
Mon, 7 Apr 2014 08:31:00 +0200 от Uwe Kleine-König
u.kleine-koe...@pengutronix.de:
Hello,
On Sun, Apr 06, 2014 at 09:07:07PM +0200, Wolfram Sang wrote:
During development, the driver first really needed
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