> can continue that on Lager. In the meantime I could also capture I2C traces
> using a scope and send them to you.
Cool, thanks! I think I'll start with sending you another trace-printk
patch soon.
And can you push the branch you were using somewhere? With the config as
an additional commit?
Hello,
On Tue, Nov 17, 2015 at 06:02:59PM -0600, Li Yang wrote:
> Since commit 1c4b6c3bcf30 ("i2c: imx: implement bus recovery") the driver
> starts to use gpio/pinctrl to do i2c bus recovery. But pinctrl is not
> always available for platforms using this driver such as ls1021a and
> ls1043a, and
Hi Magnus,
On Wednesday 18 November 2015 11:18:00 Magnus Damm wrote:
> On Tue, Nov 17, 2015 at 4:00 PM, Wolfram Sang wrote:
> > Hi Laurent,
> >
> >> Sorry for bringing bad news, but as with v1, this patch breaks ADV7511
> >> detection on my Koelsch board. Reverting it on top of the series fixes
Hi Wolfram,
On Tue, Nov 17, 2015 at 4:00 PM, Wolfram Sang wrote:
> Hi Laurent,
>
>> Sorry for bringing bad news, but as with v1, this patch breaks ADV7511
>> detection on my Koelsch board. Reverting it on top of the series fixes the
>> problem.
>
> In v1, patch 5/9 was breaking. I hope in v2, it
Since commit 1c4b6c3bcf30 ("i2c: imx: implement bus recovery") the driver
starts to use gpio/pinctrl to do i2c bus recovery. But pinctrl is not
always available for platforms using this driver such as ls1021a and
ls1043a, and the device tree binding also mentioned this gpio based
recovery mechanis
On Tue, Nov 17, 2015 at 3:11 PM, Li Yang wrote:
> With commit 1c4b6c3b (i2c: imx: implement bus recovery) the driver
> starts to use pinctrl to do i2c bus recovery. But this breaks build
> for platforms that don't implement pinctrl, such as ls1021a and
> ls1043a.
>
> This patch fix the problem by
With commit 1c4b6c3b (i2c: imx: implement bus recovery) the driver
starts to use pinctrl to do i2c bus recovery. But this breaks build
for platforms that don't implement pinctrl, such as ls1021a and
ls1043a.
This patch fix the problem by only compiling the bus recovery code
when CONFIG_PINCTRL is
On Mon, 16 Nov 2015 18:02:19 -0600 (CST), Aaron Sierra wrote:
> Previously, the at24 driver would bail out in the case of a 16-bit
> addressable EEPROM attached to an SMBus controller. This is because
> SMBus block reads and writes don't map to I2C multi-byte reads and
> writes when the offset port
On Tue, Nov 17, 2015 at 1:04 PM, Lars-Peter Clausen wrote:
> On 11/17/2015 06:17 AM, Shubhrajyoti Datta wrote:
>> On Mon, Nov 16, 2015 at 7:12 PM, Lars-Peter Clausen wrote:
>>> Commit d701667bb331 ("i2c: xiic: Do not reset controller before every
>>> transfer") removed the reinitialization of the
QUP from version 2.1.1 onwards, supports a new format of i2c command tags.
Tag codes instructs the controller to perform a operation like read/write.
This new tagging version supports and is required for adding bam dma
capabilities. V2 tags supports transfer of more than 256 bytes in a single i2c
t
The definition of i2c_msg says that
"If this is the last message in a group, it is followed by a STOP.
Otherwise it is followed by the next @i2c_msg transaction segment,
beginning with a (repeated) START"
So the expectation is that there is no 'STOP' bit inbetween individual
i2c_msg segments with
QUP from version 2.1.1 onwards, supports a new format of
i2c command tags. Tag codes instructs the controller to
perform a operation like read/write. This new tagging version
supports bam dma and transfers of more than 256 bytes without 'stop'
in between. Adding the support for the same.
For each
Signed-off-by: Sricharan R
---
arch/arm/boot/dts/qcom-msm8974.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi
b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 7786408..bd1be53 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-
Signed-off-by: Sricharan R
---
arch/arm/boot/dts/qcom-msm8974.dtsi | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi
b/arch/arm/boot/dts/qcom-msm8974.dtsi
index 753bdfd..7786408 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
++
qup_wait_writeready waits only on a output fifo empty event.
Change the same function to accept the event and data length
to wait as parameters. This way the same function can be used for
timeouts in other places as well.
Signed-off-by: Sricharan R
---
drivers/i2c/busses/i2c-qup.c | 67 +
QUP cores can be attached to a BAM module, which acts as a dma engine for the
QUP core. When DMA with BAM is enabled, the BAM consumer pipe transmitted data
is written to the output FIFO and the BAM producer pipe received data is read
from the input FIFO.
With BAM capabilities, qup-i2c core can tr
From: Shaohui Xie
Signed-off-by: Shaohui Xie
Signed-off-by: Mingkai Hu
Signed-off-by: Wenbin Song
Signed-off-by: Hou Zhiqiang
---
V8 - V7:
- Rebased on latest LS2080 patches.
V6: V5 V4 V3
- No change.
V2:
- Remove the useless compatible "simple-bus" from cpld node.
arch/arm64/boot/dts/
From: Hou Zhiqiang
drivers/i2c/busses/i2c-imx.c:978:2: error: implicit declaration of
function ‘pinctrl_select_state’ [-Werror=implicit-function-declaration]
pinctrl_select_state(i2c_imx->pinctrl, i2c_imx->pinctrl_pins_gpio);
^
Signed-off-by: Hou Zhiqiang
---
V8:
- New patch.
drivers/i2c
From: Mingkai Hu
LS1043a is an SoC with 4 ARMv8 A53 cores and most other IP blocks are
similar to LS1021a which also complies to Freescale Chassis 2.1 spec.
Created LS1043a SoC DTSI file to be included by board level DTS files.
Signed-off-by: Li Yang
Signed-off-by: Hou Zhiqiang
Signed-off-by:
From: Shaohui Xie
Modify watchdog/Kconfig file to support Layerscape platforms.
Signed-off-by: Shaohui Xie
Signed-off-by: Hou Zhiqiang
Acked-by: Guenter Roeck
---
V8:
- No change.
V6:
- Remove a Signed-off.
V5: V4 V3 V2
- No change.
drivers/watchdog/Kconfig | 2 +-
1 file changed, 1 in
From: Mingkai Hu
Signed-off-by: Mingkai Hu
Signed-off-by: Hou Zhiqiang
---
V8 - V2:
- No change.
Documentation/devicetree/bindings/arm/fsl.txt | 4
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.txt
b/Documentation/devicetree/bindings/arm/fsl.tx
The at24cs series EEPROM chips have an additional read-only memory area,
that is visible on a different i2c slave address. Tie it up with a dummy
device.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 30 ++
1 file changed, 26 insertions(+), 4 del
In preparation for supporting the at24cs EEPROM series add a new flag to
platform data. When set, it should tell the driver that the chip has an
additional read-only memory area that holds a factory pre-programmed serial
number.
Signed-off-by: Bartosz Golaszewski
---
include/linux/platform_data/
Improve the readability of the device table by separating columns with
tabs.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 28 ++--
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.
Chips from the at24cs EEPROM series have an additional read-only memory area
containing a factory pre-programmed serial number. In order to access it, a
dummy write must be executed before reading the serial number bytes.
This series adds support for reading the serial number through a sysfs
attri
The at24cs series EEPROM chips have an additional read-only memory area
containing a factory pre-programmed serial number. In order to access
it, one has to perform a dummy write before reading the serial number
bytes.
Add a function that allows to access the serial number.
Signed-off-by: Bartosz
The at24 driver is now capable of reading the serial number from at24cs
EEPROM chips. Export the serial number through sysfs.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 44
1 file changed, 40 insertions(+), 4 deletions(-)
dif
Use BIT() macro to replace the 0xXX constants in platform_data flags
definitions.
Signed-off-by: Bartosz Golaszewski
---
include/linux/platform_data/at24.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/platform_data/at24.h
b/include/linux/platform_dat
The infrastructure for reading of the factory-programmed serial number
for at24cs EEPROM series is now in place. Add the chips that are actually
equipped with the serial number memory area to the list of supported
devices.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 9 +++
Move the macro definitions above the struct definitions and add some
tabs for better readability.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 16
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eepro
It seems as if the second check for I2C_FUNC_I2C functionality had been
introduced accidentally during a merge. Tt's reduntant, so remove it.
Signed-off-by: Bartosz Golaszewski
---
drivers/misc/eeprom/at24.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/misc/eeprom/at24.c b/drive
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