On Friday 19 July 2013 12:38 AM, Trent Piepho wrote:
> On Thu, Jul 18, 2013 at 3:01 AM, Sourav Poddar wrote:
>> +Required properties:
>> +- compatible : should be "ti,dra7xxx-qspi".
>> +- reg: Should contain QSPI registers location and length.
>> +- #address-cells, #size-cells : Must be present if
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Hi Trent,
2013/7/18 Trent Piepho :
> On Wed, Jul 17, 2013 at 6:58 PM, yuhang wang wrote:
>> >> > >
>> >> > > > [Pekon]: Instead of adding new fields you can use existing 'mode'
>> >> > > > field
>> >> to
>> >> > > > pass on the platform specific configurations. And if 'u8 mode'
>> >> > > > does n
On 07/18/2013 03:39 PM, Mark Brown wrote:
> On Thu, Jul 18, 2013 at 12:08:30PM -0700, Trent Piepho wrote:
>> On Thu, Jul 18, 2013 at 3:01 AM, Sourav Poddar wrote:
>
>>> +- ti,hwmods: Name of the hwmod associated to the QSPI
>
>> What is ti,hwmods? It's not clear from the description. It also
>>
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On Thu, Jul 18, 2013 at 3:01 AM, Sourav Poddar wrote:
> +Required properties:
> +- compatible : should be "ti,dra7xxx-qspi".
> +- reg: Should contain QSPI registers location and length.
> +- #address-cells, #size-cells : Must be present if the device has sub-nodes
> +- ti,hwmods: Name of the hwmod
On 07/18/2013 12:08 PM, Russell King - ARM Linux wrote:
> On Thu, Jul 18, 2013 at 11:46:39AM -0500, Joel Fernandes wrote:
>> The API is optionally implemented by dmaengine drivers and when
>> unimplemented will return a NULL pointer. A client driver using
>> this API provides the required dma chann
On Thu, Jul 18, 2013 at 11:46:39AM -0500, Joel Fernandes wrote:
> The API is optionally implemented by dmaengine drivers and when
> unimplemented will return a NULL pointer. A client driver using
> this API provides the required dma channel, address width, and
> burst size of the transfer. dma_get_
On Thu, Jul 18, 2013 at 11:46:39AM -0500, Joel Fernandes wrote:
> From: Matt Porter
>
> Add a dmaengine API to retrieve slave SG transfer limits.
>
> The API is optionally implemented by dmaengine drivers and when
> unimplemented will return a NULL pointer. A client driver using
> this API provi
From: Matt Porter
The EDMA DMAC has a hardware limitation that prevents supporting
scatter gather lists with any number of segments. The DMA Engine
API reports the maximum number of segments a channel can support
via the optional dma_get_slave_sg_limits() API. If the max_nr_segs
limit is present,
From: Matt Porter
Implement device_slave_sg_limits().
EDMA has a finite set of PaRAM slots available for linking a
multi-segment SG transfer. In order to prevent any one channel
from consuming all PaRAM slots to fulfill a large SG transfer,
the driver reports a static per-channel max number of S
From: Matt Porter
Add a dmaengine API to retrieve slave SG transfer limits.
The API is optionally implemented by dmaengine drivers and when
unimplemented will return a NULL pointer. A client driver using
this API provides the required dma channel, address width, and
burst size of the transfer. d
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Hi Mark,
On Thursday 18 July 2013 08:12 PM, Mark Brown wrote:
> On Thu, Jul 18, 2013 at 04:31:58PM +0300, Felipe Balbi wrote:
>> On Thu, Jul 18, 2013 at 02:18:22PM +0100, Mark Brown wrote:
>>> So why do we report that we handled the interrupt then? Shouldn't we at
>>> least warn if we're getting s
On Thursday 18 July 2013 04:54 PM, Felipe Balbi wrote:
> On Thu, Jul 18, 2013 at 04:48:41PM +0530, Sourav Poddar wrote:
+static void qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t)
+{
+ const u8 *txbuf;
+ int wlen, count;
+
+ count = t->len;
+ txb
On Thursday 18 July 2013 04:14 PM, Mark Brown wrote:
> On Thu, Jul 18, 2013 at 03:31:27PM +0530, Sourav Poddar wrote:
>> Since, qspi controller uses quad read.
>>
>> Configuring the command register, if the transfer of data needs
>> dual or quad lines.
>>
>> This patch has been done on top of the f
On Thursday 18 July 2013 04:12 PM, Mark Brown wrote:
> On Thu, Jul 18, 2013 at 03:31:26PM +0530, Sourav Poddar wrote:
>
>> QSPI is a kind of spi module that allows single,
>> dual and quad read access to external spi devices. The module
>> has a memory mapped interface which provide direct interfac
Hi Felipe,
On Thursday 18 July 2013 03:54 PM, Felipe Balbi wrote:
> Hi,
>
> it might be just me, but ...
>
> On Thu, Jul 18, 2013 at 03:31:26PM +0530, Sourav Poddar wrote:
>> +static inline unsigned long ti_qspi_readl_data(struct ti_qspi *qspi,
>> +unsigned long reg, int wlen)
>> +{
>>
?
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Add support for calculating message length in spi framework.
Add support for quad spi controller.
Patch 2 of this series had been posted before. Sending along
with the series along with ather propsed change.
Sourav Poddar (3):
driver: spi: Modify core to compute the message length
drivers: s
Since, qspi controller uses quad read.
Configuring the command register, if the transfer of data needs
dual or quad lines.
This patch has been done on top of the following patch[1], which is just the
basic idea of adding dual/quad support in spi framework.
$subject patch will undergo changes a
The patch add basic support for the quad spi controller.
QSPI is a kind of spi module that allows single,
dual and quad read access to external spi devices. The module
has a memory mapped interface which provide direct interface
for accessing data form external spi devices.
The patch will configu
Make spi core calculate the message length while
populating the other transfer parameters.
Usecase, driver can use it to populate framelength filed in their
controller.
Signed-off-by: Sourav Poddar
---
drivers/spi/spi.c |1 +
include/linux/spi/spi.h |1 +
2 files changed, 2 insert
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