From patchwork Sun Apr 19 12:51:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris Brezillon X-Patchwork-Id: 1272862 X-Patchwork-Delegate: miquel.raynal@bootlin.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:e::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20170209 header.b=T4jluyoq; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 494qVR2GKRz9s71 for ; Sun, 19 Apr 2020 22:52:31 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=tX8Mno1GQon+wW1kZTcoyG9Yxdbkjgn4uSGiuDa8HWY=; b=T4jluyoqJDufx/ VGm3/G15phiMe9yoAVxnEUxgdYLxYmco2vHaAee2OhdxC8HHlGUlYaB/kqNNPdSQn6K8pdVvu6EK2 4TqNei2Hb5Rnf5//N0jMLQXcx55DDt4Iq8PtRnBVFneX785s1Tdt4e+VZ+KZdfbPmBZf9wJWM+xya wFtHCvIBizsRTrWMIhr2wvwsFjKoCdtgaaYPoVpOn+MPMjj5lNjJCG3yuo872MGsk0bxw9Y0n9PzH 74HtFC6hpo8vXFxnGpQ0okwEqh+HJO7Vu27jl3JBCeUIH8XW8kPZMtN7pcRBkhKtWAXgl4V9aql+Y h1zR23lQLcJf1N1I90AQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jQ9Qo-0006Nx-Gr; Sun, 19 Apr 2020 12:52:18 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jQ9QI-0005sb-E3 for linux-mtd@lists.infradead.org; Sun, 19 Apr 2020 12:51:49 +0000 Received: from localhost.localdomain (unknown [IPv6:2a01:e0a:2c:6930:5cf4:84a1:2763:fe0d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: bbrezillon) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id BC23F2A0072; Sun, 19 Apr 2020 13:51:44 +0100 (BST) From: Boris Brezillon To: Miquel Raynal , linux-mtd@lists.infradead.org, =?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= Subject: [PATCH 1/9] mtd: rawnand: Add an is_last flag to nand_subop Date: Sun, 19 Apr 2020 14:51:32 +0200 Message-Id: <20200419125140.1307309-2-boris.brezillon@collabora.com> X-Mailer: git-send-email 2.25.2 In-Reply-To: <20200419125140.1307309-1-boris.brezillon@collabora.com> References: <20200419125140.1307309-1-boris.brezillon@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200419_055146_604936_CE5C55E0 X-CRM114-Status: GOOD ( 11.27 ) X-Spam-Score: -0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [46.235.227.227 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vignesh Raghavendra , Tudor Ambarus , Richard Weinberger , Boris Brezillon , Boris Brezillon , bcm-kernel-feedback-list@broadcom.com, openwrt-devel@lists.openwrt.org Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Some controllers need to know when they're passed the last subop so they can de-assert the CE pin. Signed-off-by: Boris Brezillon Reviewed-by: Miquel Raynal Reviewed-by: Miquel Raynal Reviewed-by: Miquel Raynal --- drivers/mtd/nand/raw/nand_base.c | 2 ++ include/linux/mtd/rawnand.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index fa9ac18e97a1..f81b54634061 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -2101,6 +2101,8 @@ nand_op_parser_match_pat(const struct nand_op_parser_pattern *pat, */ ctx->subop.ninstrs = ninstrs; ctx->subop.last_instr_end_off = instr_offset; + if (ctx->subop.instrs + ninstrs == end && !instr_offset) + ctx->subop.is_last = true; return true; } diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h index 8e8d1a61e2fb..99f4ac47c8d3 100644 --- a/include/linux/mtd/rawnand.h +++ b/include/linux/mtd/rawnand.h @@ -701,6 +701,7 @@ struct nand_op_instr { * of the sub-operation * @last_instr_end_off: offset to end at (excluded) for the last instruction * of the sub-operation + * @is_last: this sub-operation is the last one * * Both @first_instr_start_off and @last_instr_end_off only apply to data or * address instructions. @@ -715,6 +716,7 @@ struct nand_subop { unsigned int ninstrs; unsigned int first_instr_start_off; unsigned int last_instr_end_off; + bool is_last; }; unsigned int nand_subop_get_addr_start_off(const struct nand_subop *subop,