From patchwork Fri Jan 12 13:16:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ladislav Michl X-Patchwork-Id: 10160839 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 726CD602A7 for ; Fri, 12 Jan 2018 13:16:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 637B2289E3 for ; Fri, 12 Jan 2018 13:16:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 568ED289E6; Fri, 12 Jan 2018 13:16:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA07D289E3 for ; Fri, 12 Jan 2018 13:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933467AbeALNQc (ORCPT ); Fri, 12 Jan 2018 08:16:32 -0500 Received: from eddie.linux-mips.org ([148.251.95.138]:39368 "EHLO cvs.linux-mips.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933462AbeALNQc (ORCPT ); Fri, 12 Jan 2018 08:16:32 -0500 Received: (from localhost user: 'ladis' uid#1021 fake: STDIN (ladis@eddie.linux-mips.org)) by eddie.linux-mips.org id S23994661AbeALNQbGZUKd (ORCPT ); Fri, 12 Jan 2018 14:16:31 +0100 Date: Fri, 12 Jan 2018 14:16:28 +0100 From: Ladislav Michl To: linux-mtd@lists.infradead.org, linux-omap@vger.kernel.org Cc: Boris Brezillon , Roger Quadros , Peter Ujfalusi , Kyungmin Park , Aaro Koskinen , Tony Lindgren Subject: [PATCH v6 11/14] mtd: onenand: omap2: Do not make delay for GPIO OMAP3 specific Message-ID: <20180112131628.GL13810@lenoch> References: <20180112131105.GA13810@lenoch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20180112131105.GA13810@lenoch> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Second commit in driver history (782b7a367d81: "[MTD] [OneNAND] OMAP3: add delay for GPIO") added quirk for waiting until GPIO line settle. As DMA was disabled for OMAP2 boards, chances are this problem was not OMAP3 specific and as it is just one register read, previous test for SoC type is approximately as expensive as read itself. Make delay unconditional, which allows removing SoC specific code alltogether. Signed-off-by: Ladislav Michl Reviewed-by: Peter Ujfalusi Reviewed-by: Sebastian Reichel Acked-by: Roger Quadros Tested-by: Tony Lindgren Tested-by: Aaro Koskinen --- Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: - new patch Changes in v2: None drivers/mtd/onenand/omap2.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c index c9ff67100ef4..e4857a41760d 100644 --- a/drivers/mtd/onenand/omap2.c +++ b/drivers/mtd/onenand/omap2.c @@ -57,7 +57,6 @@ struct omap2_onenand { struct dma_chan *dma_chan; int freq; int (*setup)(void __iomem *base, int *freq_ptr); - u8 flags; }; static void omap2_onenand_dma_complete_func(void *completion) @@ -148,9 +147,8 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state) if (!(syscfg & ONENAND_SYS_CFG1_IOBE)) { syscfg |= ONENAND_SYS_CFG1_IOBE; write_reg(c, syscfg, ONENAND_REG_SYS_CFG1); - if (c->flags & ONENAND_IN_OMAP34XX) - /* Add a delay to let GPIO settle */ - syscfg = read_reg(c, ONENAND_REG_SYS_CFG1); + /* Add a delay to let GPIO settle */ + syscfg = read_reg(c, ONENAND_REG_SYS_CFG1); } reinit_completion(&c->irq_done); @@ -470,7 +468,6 @@ static int omap2_onenand_probe(struct platform_device *pdev) init_completion(&c->irq_done); init_completion(&c->dma_done); - c->flags = pdata->flags; c->gpmc_cs = pdata->cs; c->gpio_irq = pdata->gpio_irq; if (pdata->dma_channel < 0) {