Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758490Ab3GRKCm (ORCPT ); Thu, 18 Jul 2013 06:02:42 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:42978 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757889Ab3GRKBq (ORCPT ); Thu, 18 Jul 2013 06:01:46 -0400 From: Sourav Poddar To: , , CC: , , , , Sourav Poddar Subject: [RFC/PATCHv2 1/3] driver: spi: Modify core to compute the message length Date: Thu, 18 Jul 2013 15:31:25 +0530 Message-ID: <1374141687-10790-2-git-send-email-sourav.poddar@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1374141687-10790-1-git-send-email-sourav.poddar@ti.com> References: <1374141687-10790-1-git-send-email-sourav.poddar@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1448 Lines: 44 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 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/