On Tuesday, September 09, 2014 at 05:05:24 PM, Janusz Użycki wrote:
[...]
> >> If it is too fast a slave has possibility to inform by setting SCL low.
> >
> > Do you mean clock stretching ?
>
> Yes, I didn't notice it is the same.
OK
> >> However I haven't seen any driver which supports the m
On Tuesday, September 09, 2014 at 06:19:31 PM, Janusz Uzycki wrote:
> i2cdetect scanned i2c bus very slow if address was not occupied by any
> device.
This still fails to explain how the patch fixes the issue. You see, I don't
want
to abuse you unnecessarily, but the commit message serves mostly
This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO
Master Adapter DLN-2. Details about the device can be found here:
https://www.diolan.com/i2c/i2c_interface.html.
Information about the USB protocol can be found in the Programmer's
Reference Manual [1], see section 1.7.
Because th
This patch series adds support for Diolan USB-I2C/GPIO Master Adapter
DLN-2. Details about device can be found here:
https://www.diolan.com/i2c/i2c_interface.html.
Changes since v3:
* Mostly addressing latest review comments from Johan
* MFD driver: more message size checks for responses, swi
From: Laurentiu Palcu
This patch adds support for the Diolan DLN-2 I2C master module. Due
to hardware limitations it does not support SMBUS quick commands.
Information about the USB protocol interface can be found in the
Programmer's Reference Manual [1], see section 6.2.2 for the I2C
master mod
From: Daniel Baluta
This patch adds GPIO and IRQ support for the Diolan DLN-2 GPIO module.
Information about the USB protocol interface can be found in the
Programmer's Reference Manual [1], see section 2.9 for the GPIO
module commands and responses.
[1] https://www.diolan.com/downloads/dln-api
> +config I2C_SLAVE_EEPROM
> + bool "I2C eeprom slave driver"
This should be "tristate". Fixed in my branch.
signature.asc
Description: Digital signature
If I2C_M_RD flag is set SELECT command is sent
and afterward READ command.
The patch fixes READ command to return READ failure error message
instead of SELECT failure error message.
Signed-off-by: Janusz Uzycki
---
drivers/i2c/busses/i2c-mxs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-
i2cdetect scanned i2c bus very slow if address was not occupied by any device.
Signed-off-by: Janusz Uzycki
---
drivers/i2c/busses/i2c-mxs.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 87ee72d..35ae448 100644
--- a/dri
From: Wolfram Sang
Signed-off-by: Wolfram Sang
---
drivers/i2c/i2c-core.c | 44
include/linux/i2c.h| 22 ++
2 files changed, 66 insertions(+)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 632057a44615..67
W dniu 2014-09-09 15:59, Marek Vasut pisze:
On Tuesday, September 09, 2014 at 03:10:25 PM, Janusz Użycki wrote:
W dniu 2014-09-09 14:48, Marek Vasut pisze:
Shouldn't this check be used only after the 'SELECT' command ?
It looks |||mxs_i2c_isr()| for DMA transfer does not differentiate
command
From: Wolfram Sang
Signed-off-by: Wolfram Sang
---
drivers/i2c/Kconfig| 10 +++
drivers/i2c/Makefile | 1 +
drivers/i2c/i2c-slave-eeprom.c | 152 +
3 files changed, 163 insertions(+)
create mode 100644 drivers/i2c/i2c-slave-eepro
From: Wolfram Sang
Signed-off-by: Wolfram Sang
---
drivers/i2c/busses/i2c-rcar.c | 122 ++
1 file changed, 113 insertions(+), 9 deletions(-)
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 1cc146cfc1f3..fe875d994441 10064
From: Wolfram Sang
Not for upstream!
Signed-off-by: Wolfram Sang
---
arch/arm/boot/dts/r8a7790-lager.dts | 15 ++-
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/arch/arm/boot/dts/r8a7790-lager.dts
b/arch/arm/boot/dts/r8a7790-lager.dts
index 856b4236b674..12aa2f21e
Finally, here is my take on the often desired feature that Linux can not only
be an I2C master, but also an I2C slave. Compared to my draft sent out last
week, this RFC has been tested on hardware (Renesas Lager board) and works \o/
One big part still missing is documentation, so brave ones need t
On Tuesday, September 09, 2014 at 03:10:25 PM, Janusz Użycki wrote:
> W dniu 2014-09-09 14:48, Marek Vasut pisze:
> >>> Shouldn't this check be used only after the 'SELECT' command ?
> >>
> >> It looks |||mxs_i2c_isr()| for DMA transfer does not differentiate
> >> commands also
> >> and does not m
W dniu 2014-09-09 14:48, Marek Vasut pisze:
Shouldn't this check be used only after the 'SELECT' command ?
It looks |||mxs_i2c_isr()| for DMA transfer does not differentiate
commands also
and does not mask irqs for each command.
|STAT_GOT_A_NAK| is a separate bit.|CTRL1_NO_SLAVE_ACK_IRQ can b
On Tuesday, September 09, 2014 at 10:16:34 AM, Janusz Użycki wrote:
> W dniu 2014-09-08 20:14, Marek Vasut pisze:
> > On Monday, September 08, 2014 at 08:04:22 PM, Janusz Użycki wrote:
> >
> > Thanks, but the Subject of the email doesn't make much sense. Also, a
> > short commit message exlaining
On Tuesday, September 09, 2014 at 11:27:36 AM, Janusz Użycki wrote:
> W dniu 2014-09-08 20:33, Marek Vasut pisze:
> > On Monday, September 08, 2014 at 08:06:12 PM, Janusz Użycki wrote:
> >> Subject: [PATCH 2/2] i2c-mxs: fixed PIO NACK error instead of timeout
> >>
> >>(1000ms)
> >>
> >> i2cde
Previously only the ACPI PM domain was supported by the i2c bus.
Let's convert to the common attach/detach functions for PM domains,
which currently means we are extending the support to include the
generic PM domain as well.
Cc: linux-i2c@vger.kernel.org
Signed-off-by: Ulf Hansson
Reviewed-by:
On Tue, Sep 9, 2014 at 12:36 PM, Johan Hovold wrote:
> On Fri, Sep 05, 2014 at 07:04:51PM +0300, Octavian Purdila wrote:
>> On Fri, Sep 5, 2014 at 6:38 PM, Johan Hovold wrote:
>> > On Fri, Sep 05, 2014 at 06:17:59PM +0300, Octavian Purdila wrote:
>
>> > In general, how well have these patches bee
On Fri, Sep 05, 2014 at 07:04:51PM +0300, Octavian Purdila wrote:
> On Fri, Sep 5, 2014 at 6:38 PM, Johan Hovold wrote:
> > On Fri, Sep 05, 2014 at 06:17:59PM +0300, Octavian Purdila wrote:
> > In general, how well have these patches been tested with disconnect
> > events? At least gpiolib is kno
W dniu 2014-09-08 20:33, Marek Vasut pisze:
On Monday, September 08, 2014 at 08:06:12 PM, Janusz Użycki wrote:
Subject: [PATCH 2/2] i2c-mxs: fixed PIO NACK error instead of timeout
(1000ms)
i2cdetect scanned i2c bus very slow if address was not occupied by any
device.
Shouldn't this check b
On Mon, 08 Sep 2014, Octavian Purdila wrote:
> On Mon, Sep 8, 2014 at 7:30 PM, Johan Hovold wrote:
> > On Mon, Sep 08, 2014 at 06:57:29PM +0300, Octavian Purdila wrote:
> >> On Mon, Sep 8, 2014 at 5:44 PM, Johan Hovold wrote:
> >>
> >>
> >>
> >> Hi Johan,
> >>
> >> Again, thanks for the detaile
W dniu 2014-09-08 20:14, Marek Vasut pisze:
On Monday, September 08, 2014 at 08:04:22 PM, Janusz Użycki wrote:
Thanks, but the Subject of the email doesn't make much sense. Also, a short
commit message exlaining what you did and why you did it would be nice.
While the patch is obvious and obvi
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