From: Sourav Poddar <sourav.poddar@ti.com>
To: <broonie@kernel.org>, <spi-devel-general@lists.sourceforge.net>,
<grant.likely@linaro.org>
Cc: <balbi@ti.com>, <rnayak@ti.com>, <linux-omap@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Sourav Poddar <sourav.poddar@ti.com>
Subject: [RFC/PATCHv2 1/3] driver: spi: Modify core to compute the message length
Date: Thu, 18 Jul 2013 15:31:25 +0530 [thread overview]
Message-ID: <1374141687-10790-2-git-send-email-sourav.poddar@ti.com> (raw)
In-Reply-To: <1374141687-10790-1-git-send-email-sourav.poddar@ti.com>
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 <sourav.poddar@ti.com>
---
drivers/spi/spi.c | 1 +
include/linux/spi/spi.h | 1 +
2 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 32b7bb1..6a05b3c 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1375,6 +1375,7 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message)
* it is not set for this transfer.
*/
list_for_each_entry(xfer, &message->transfers, transfer_list) {
+ message->frame_length += xfer->len;
if (!xfer->bits_per_word)
xfer->bits_per_word = spi->bits_per_word;
if (!xfer->speed_hz)
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 6ff26c8..d83841e 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -575,6 +575,7 @@ struct spi_message {
/* completion is reported through a callback */
void (*complete)(void *context);
void *context;
+ unsigned frame_length;
unsigned actual_length;
int status;
--
1.7.1
next prev parent reply other threads:[~2013-07-18 10:02 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-18 10:01 [PATCH 0/3] spi changes and ti quad spi controller Sourav Poddar
2013-07-18 10:01 ` Sourav Poddar [this message]
2013-07-18 15:22 ` [RFC/PATCHv2 1/3] driver: spi: Modify core to compute the message length Mark Brown
2013-07-18 10:01 ` [PATCHv4 2/3] drivers: spi: Add qspi flash controller Sourav Poddar
2013-07-18 10:24 ` Felipe Balbi
2013-07-18 11:18 ` Sourav Poddar
2013-07-18 11:24 ` Felipe Balbi
2013-07-18 12:24 ` Sourav Poddar
2013-07-19 11:48 ` Sourav Poddar
2013-07-19 12:20 ` Felipe Balbi
2013-07-18 10:42 ` Mark Brown
2013-07-18 11:45 ` Sourav Poddar
2013-07-18 11:56 ` Felipe Balbi
2013-07-18 13:18 ` Mark Brown
2013-07-18 13:31 ` Felipe Balbi
2013-07-18 14:42 ` Mark Brown
2013-07-18 14:55 ` Sourav Poddar
2013-07-18 15:28 ` Mark Brown
2013-07-19 11:55 ` Sourav Poddar
2013-07-18 19:08 ` Trent Piepho
2013-07-18 20:39 ` Mark Brown
2013-07-18 20:59 ` Nishanth Menon
2013-07-19 5:02 ` Sourav Poddar
2013-07-18 10:01 ` [RFC/PATCHv2 3/3] driver: spi: Add quad spi read support Sourav Poddar
2013-07-18 10:44 ` Mark Brown
2013-07-18 11:52 ` Sourav Poddar
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