From patchwork Thu Jul 18 10:01:25 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Poddar, Sourav" X-Patchwork-Id: 2829577 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 764D19F9EB for ; Thu, 18 Jul 2013 10:02:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 35ECC201F3 for ; Thu, 18 Jul 2013 10:02:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 01423201D7 for ; Thu, 18 Jul 2013 10:02:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758191Ab3GRKCl (ORCPT ); Thu, 18 Jul 2013 06:02:41 -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 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id r6IA1afA008557; Thu, 18 Jul 2013 05:01:36 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r6IA1a44013085; Thu, 18 Jul 2013 05:01:36 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.2.342.3; Thu, 18 Jul 2013 05:01:36 -0500 Received: from a0131647.apr.dhcp.ti.com (a0131647.apr.dhcp.ti.com [172.24.145.168]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r6IA1TIR001181; Thu, 18 Jul 2013 05:01:34 -0500 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 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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;