From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B417C4338F for ; Tue, 3 Aug 2021 10:43:15 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2CC5F600D4 for ; Tue, 3 Aug 2021 10:43:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 2CC5F600D4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:CC :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=LQLxR7RR33zwzOUtwZUe3yzUodQ26ggZ/V3Y6Mk2lGA=; b=p9lEP2SE3j3b9o uXDki5CzjXN8KKQ/xCaj5F2Gzdtf8mnyYDYI8a4WW6OPfQ3X84XhiSZtZ90gSUjAOQQ7hszeVAnQd 4InNu84WCd2mQYjDmiulEQrqF1NqCIo5U5nthanWlvs2NOH0sGOV7X1tSAYh+Mae4vO7+86TSnb4c 3meSks43VyUV08MPtJRki5fs/IihY7OzSV9hU+jLzcWt3I5ZRgSkfrZ2dRVchPP0XNfl5v6XQC+lL 1MznDe35zaaJE0cHGMLHVbVV4WiVTcJfEh+gOygHHzRyFyqMw6/XkutM6MXZjrskrGmwKTbgUD2ai 9p0Rli1nQ4/JBrP6nJtg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mArqn-0026ZL-OC; Tue, 03 Aug 2021 10:40:48 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mArqK-0026QQ-VO; Tue, 03 Aug 2021 10:40:18 +0000 X-UUID: f3718e36bf9343899e3e7ffec82eec9b-20210803 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=WJz8ckM9XDIJLsrxewPs0KSs3L87Hnpo2vFaJcej/ak=; b=bCXnRrOFnlxHZzjgnqtelZw7uAkBeE0OhpWUIkBVw4KcqjDYvDZFc3Bu3J46c30U80rOQeOC0MTRE0SP5ra99wTBqsUZp+5eybdUOCy7/SfG/jEe2QuHlVfWmrlmQ9R/OPTuIuH+KiSOu6YOFqUSD1mBaz6BxHGPh0mLP5ir8fk=; X-UUID: f3718e36bf9343899e3e7ffec82eec9b-20210803 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 182763498; Tue, 03 Aug 2021 03:40:13 -0700 Received: from MTKMBS06N2.mediatek.inc (172.21.101.130) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 3 Aug 2021 03:40:11 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs06n2.mediatek.inc (172.21.101.130) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 3 Aug 2021 18:40:10 +0800 Received: from localhost.localdomain (10.15.20.246) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 3 Aug 2021 18:40:09 +0800 From: Mason Zhang To: Mark Brown , Matthias Brugger CC: Laxman Dewangan , , , , , , "Mason Zhang" Subject: [PATCH v2 1/4] spi: move cs spi_delay to spi_device Date: Tue, 3 Aug 2021 18:23:34 +0800 Message-ID: <20210803102333.22568-1-Mason.Zhang@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210803_034017_070288_13ED1B2D X-CRM114-Status: GOOD ( 16.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As we know, spi core layer has removed spi_set_cs_timing() API. So this patch moved spi_delay for cs_timing from spi_controller to spi_device, because cs timing should be set by spi_device but not controller. Signed-off-by: Mason Zhang --- drivers/spi/spi.c | 6 +++--- include/linux/spi/spi.h | 20 +++++++++----------- 2 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index c99181165321..5d68e6cd2a18 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -842,9 +842,9 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force) if (spi->cs_gpiod || gpio_is_valid(spi->cs_gpio) || !spi->controller->set_cs_timing) { if (activate) - spi_delay_exec(&spi->controller->cs_setup, NULL); + spi_delay_exec(&spi->cs_setup, NULL); else - spi_delay_exec(&spi->controller->cs_hold, NULL); + spi_delay_exec(&spi->cs_hold, NULL); } if (spi->mode & SPI_CS_HIGH) @@ -887,7 +887,7 @@ static void spi_set_cs(struct spi_device *spi, bool enable, bool force) if (spi->cs_gpiod || gpio_is_valid(spi->cs_gpio) || !spi->controller->set_cs_timing) { if (!activate) - spi_delay_exec(&spi->controller->cs_inactive, NULL); + spi_delay_exec(&spi->cs_inactive, NULL); } } diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 97b8d12b5f2b..651e19ba3415 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -147,7 +147,11 @@ extern int spi_delay_exec(struct spi_delay *_delay, struct spi_transfer *xfer); * not using a GPIO line) * @word_delay: delay to be inserted between consecutive * words of a transfer - * + * @cs_setup: delay to be introduced by the controller after CS is asserted + * @cs_hold: delay to be introduced by the controller before CS is deasserted + * @cs_inactive: delay to be introduced by the controller after CS is + * deasserted. If @cs_change_delay is used from @spi_transfer, then the + * two delays will be added up. * @statistics: statistics for the spi_device * * A @spi_device is used to interchange data between an SPI slave @@ -188,6 +192,10 @@ struct spi_device { int cs_gpio; /* LEGACY: chip select gpio */ struct gpio_desc *cs_gpiod; /* chip select gpio desc */ struct spi_delay word_delay; /* inter-word delay */ + /* CS delays */ + struct spi_delay cs_setup; + struct spi_delay cs_hold; + struct spi_delay cs_inactive; /* the statistics */ struct spi_statistics statistics; @@ -412,11 +420,6 @@ extern struct spi_device *spi_new_ancillary_device(struct spi_device *spi, u8 ch * controller has native support for memory like operations. * @unprepare_message: undo any work done by prepare_message(). * @slave_abort: abort the ongoing transfer request on an SPI slave controller - * @cs_setup: delay to be introduced by the controller after CS is asserted - * @cs_hold: delay to be introduced by the controller before CS is deasserted - * @cs_inactive: delay to be introduced by the controller after CS is - * deasserted. If @cs_change_delay is used from @spi_transfer, then the - * two delays will be added up. * @cs_gpios: LEGACY: array of GPIO descs to use as chip select lines; one per * CS number. Any individual value may be -ENOENT for CS lines that * are not GPIOs (driven by the SPI controller itself). Use the cs_gpiods @@ -638,11 +641,6 @@ struct spi_controller { /* Optimized handlers for SPI memory-like operations. */ const struct spi_controller_mem_ops *mem_ops; - /* CS delays */ - struct spi_delay cs_setup; - struct spi_delay cs_hold; - struct spi_delay cs_inactive; - /* gpio chip select */ int *cs_gpios; struct gpio_desc **cs_gpiods; -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel