ChangeLog
v4:
- replace 0x%x by %#x when printing I2C controller version
- change the order of patches: the race condition bug fix becomes the first
patch so it be can more easily applied to older kernels.
v3:
- fix braces {} coding style issue
- split the alternative command patch into 2 patch
This patch just fixes typo before applying later patches which will use
register bits with index above 16.
Signed-off-by: Cyrille Pitchen
---
drivers/i2c/busses/i2c-at91.c | 29 +++--
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/busses/i2c-a
For TX transactions, the TXCOMP bit in the Status Register is cleared
when the first data is written into the Transmit Holding Register.
In the lines from at91_do_twi_transfer():
at91_twi_write_data_dma(dev);
at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
the TXCOMP interrupt may be enabled
add a new value "atmel,at91sama5d2-i2c" for the "compatible" property.
add a new optional property "atmel,fifo-size" to enable FIFO support when
available.
add missing optional properties "dmas" and "dma-names".
Signed-off-by: Cyrille Pitchen
---
Documentation/devicetree/bindings/i2c/i2c-at91.tx
The alternative command mode was introduced to simplify the transmission
of STOP conditions and to solve timing and latency issues around them.
This mode relies on a new register, the Alternative Command Register,
which must be set at the same time as the Master Mode Register. This new
register wa
The probe() function now prints the hardware version of the I2C
controller.
Signed-off-by: Cyrille Pitchen
---
drivers/i2c/busses/i2c-at91.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 67b4f15..cbe6684 100644
--- a/d
When FIFOs are available and enabled, the driver now configures the Atmel
eXtended DMA Controller to perform word accesses instead of byte accesses
when possible.
The actual access width depends on the size of the buffer to transmit.
To enable FIFO support the "atmel,fifo-size" property must be se
On Tue, Jun 02, 2015 at 10:29:23PM +0530, Vaibhav Hiremath wrote:
>
>
> On Tuesday 02 June 2015 10:22 PM, Vaibhav Hiremath wrote:
> >
> >
> >On Thursday 28 May 2015 06:53 PM, Russell King - ARM Linux wrote:
> >>On Thu, May 28, 2015 at 06:33:44PM +0530, Vaibhav Hiremath wrote:
> >>>From: Yi Zhang
On Wed, Jun 03, 2015 at 11:04:26AM +0200, Cyrille Pitchen wrote:
> The probe() function now prints the hardware version of the I2C
> controller.
>
> Signed-off-by: Cyrille Pitchen
Kernel has already very much printout, so I don't see the gain in adding
another one. At least, combine it with the
On Tue, May 19, 2015 at 12:23:44PM -0400, Kamal Dasu wrote:
> Adding support for i2c controller driver for Broadcom settop
> SoCs.
>
> Signed-off-by: Kamal Dasu
We are very close.
> +/* Wait for device to be ready */
> +static int brcmstb_i2c_wait_if_busy(struct brcmstb_i2c_dev *dev)
> +{
> +
For TX transactions, the TXCOMP bit in the Status Register is cleared
when the first data is written into the Transmit Holding Register.
In the lines from at91_do_twi_transfer():
at91_twi_write_data_dma(dev);
at91_twi_write(dev, AT91_TWI_IER, AT91_TWI_TXCOMP);
the TXCOMP interrupt may be enabled
ChangeLog
v5:
- print I2C controller version in an already existing dev_info() instead of
adding a new one.
v4:
- replace 0x%x by %#x when printing I2C controller version
- change the order of patches: the race condition bug fix becomes the first
patch so it be can more easily applied to olde
The alternative command mode was introduced to simplify the transmission
of STOP conditions and to solve timing and latency issues around them.
This mode relies on a new register, the Alternative Command Register,
which must be set at the same time as the Master Mode Register. This new
register wa
This patch just fixes typo before applying later patches which will use
register bits with index above 16.
Signed-off-by: Cyrille Pitchen
---
drivers/i2c/busses/i2c-at91.c | 29 +++--
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/drivers/i2c/busses/i2c-a
add a new value "atmel,at91sama5d2-i2c" for the "compatible" property.
add a new optional property "atmel,fifo-size" to enable FIFO support when
available.
add missing optional properties "dmas" and "dma-names".
Signed-off-by: Cyrille Pitchen
---
Documentation/devicetree/bindings/i2c/i2c-at91.tx
The probe() function now prints the hardware version of the I2C
controller.
Signed-off-by: Cyrille Pitchen
---
drivers/i2c/busses/i2c-at91.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index 67b4f15..89a8e6
When FIFOs are available and enabled, the driver now configures the Atmel
eXtended DMA Controller to perform word accesses instead of byte accesses
when possible.
The actual access width depends on the size of the buffer to transmit.
To enable FIFO support the "atmel,fifo-size" property must be se
On Wednesday 03 June 2015 04:26 PM, Yi Zhang wrote:
On Tue, Jun 02, 2015 at 10:29:23PM +0530, Vaibhav Hiremath wrote:
On Tuesday 02 June 2015 10:22 PM, Vaibhav Hiremath wrote:
On Thursday 28 May 2015 06:53 PM, Russell King - ARM Linux wrote:
On Thu, May 28, 2015 at 06:33:44PM +0530, Vaib
On Tuesday 02 June 2015 06:42 PM, Linus Walleij wrote:
On Thu, May 28, 2015 at 3:03 PM, Vaibhav Hiremath
wrote:
From: Rob Herring
Since there is some problematic i2c slave devices on some
platforms such as dkb (sometimes), it will drop down sda
and make i2c bus hang, at that time, it need
Hi Tomeu,
On 05/28/2015 07:33 AM, Rob Herring wrote:
> On Mon, May 25, 2015 at 9:53 AM, Tomeu Vizoso
> wrote:
>> I have a problem with the panel on my Tegra Chromebook taking longer than
>> expected to be ready during boot (Stéphane Marchesin reported what is
>> basically the same issue in [0]),
On Mon, May 25, 2015 at 10:53 AM, Tomeu Vizoso
wrote:
> Hello,
>
> I have a problem with the panel on my Tegra Chromebook taking longer than
> expected to be ready during boot (Stéphane Marchesin reported what is
> basically the same issue in [0]), and have looked into ordered probing as a
> bette
On Fri, May 29, 2015 at 10:22:27PM +0200, Robert Jarzmik wrote:
> Vaibhav Hiremath writes:
>
> > @@ -167,6 +184,8 @@ struct pxa_i2c {
> > #define _ICR(i2c) ((i2c)->reg_icr)
> > #define _ISR(i2c) ((i2c)->reg_isr)
> > #define _ISAR(i2c) ((i2c)->reg_isar)
> > +#define _ILCR(i2c) ((i2c)->reg_ilc
On Thursday 04 June 2015 08:01 AM, Yi Zhang wrote:
On Fri, May 29, 2015 at 10:22:27PM +0200, Robert Jarzmik wrote:
Vaibhav Hiremath writes:
@@ -167,6 +184,8 @@ struct pxa_i2c {
#define _ICR(i2c) ((i2c)->reg_icr)
#define _ISR(i2c) ((i2c)->reg_isr)
#define _ISAR(i2c)((i2c)->
For the whole set of patches:
Acked-by: Ludovic Desroches
Thanks Cyrille
On Wed, Jun 03, 2015 at 06:25:16PM +0200, Cyrille Pitchen wrote:
> ChangeLog
>
> v5:
> - print I2C controller version in an already existing dev_info() instead of
> adding a new one.
>
> v4:
> - replace 0x%x by %#x when
On Wed, Jun 03, 2015 at 12:59:23AM +0800, Vaibhav Hiremath wrote:
>
>
> On Tuesday 02 June 2015 10:22 PM, Vaibhav Hiremath wrote:
> >
> >
> > On Thursday 28 May 2015 06:53 PM, Russell King - ARM Linux wrote:
> >> On Thu, May 28, 2015 at 06:33:44PM +0530, Vaibhav Hiremath wrote:
> >>> From: Yi Zha
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