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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 71044C433FE for ; Wed, 20 Apr 2022 10:36:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1377717AbiDTKiq (ORCPT ); Wed, 20 Apr 2022 06:38:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351890AbiDTKhp (ORCPT ); Wed, 20 Apr 2022 06:37:45 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F32962676 for ; Wed, 20 Apr 2022 03:34:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1650450899; x=1681986899; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CgU0M9Ctm66tAtz7ZrqfIj4aDO8PJLE7JPM+0GAyffk=; b=lFZnQHxwUWRG/OUKn9Gt/JkUlv7H9q6QnosDFX5o9MWk2eNlgHxn+rkS 0i3EFc/tAEisjB5o80dHNLim55aEQoCQ37OXRNMwGZikAutZnV/+HX3hm Mjt5FL4hSiXCrX0af9Nq93QpBXg0YQN/JO7jYrzRL1YjW/MKzKgoOI1g7 QKz9ZhEjpUAlNDyV2QjIT+xPnfjw1Jxifr7IXKbHPbH0GyRdn4qbMty7f khFC1RoAgdbpBjPHtS+fV3JRF2m9WZPfNpxOicsgfwRIx1/44DhARWlNy gLdpBDbSMSeeOXZy1iVUQgci/aEZ9WuoSoqLC66zhlqxvv91MifcwO9P5 w==; X-IronPort-AV: E=Sophos;i="5.90,275,1643698800"; d="scan'208";a="170245898" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 20 Apr 2022 03:34:59 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Wed, 20 Apr 2022 03:34:58 -0700 Received: from ROB-ULT-M18064N.mchp-main.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Wed, 20 Apr 2022 03:34:56 -0700 From: Tudor Ambarus To: , CC: , , , , , , Tudor Ambarus Subject: [PATCH v4 11/11] mtd: spi-nor: micron-st: Remove status polling on volatile registers write Date: Wed, 20 Apr 2022 13:34:27 +0300 Message-ID: <20220420103427.47867-12-tudor.ambarus@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220420103427.47867-1-tudor.ambarus@microchip.com> References: <20220420103427.47867-1-tudor.ambarus@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Writing volatile registers are instant according to Micron and do not need any status polling. Remove status polling on volatile registers write. Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/micron-st.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index 61db4896e327..a96f74e0f568 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -58,9 +58,6 @@ static int micron_st_nor_octal_dtr_en(struct spi_nor *nor) op = (struct spi_mem_op) MICRON_ST_NOR_WR_ANY_REG_OP(3, SPINOR_REG_MT_CFR1V, 1, buf); ret = spi_nor_write_any_volatile_reg(nor, &op, nor->reg_proto); - if (ret) - return ret; - ret = spi_nor_wait_till_ready(nor); if (ret) return ret; -- 2.25.1 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2A044C433F5 for ; Wed, 20 Apr 2022 10:36:03 +0000 (UTC) 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:References:In-Reply-To: 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: List-Owner; bh=/NxXaL4utFWKmK9doSG+V/1LN7hxsGscf8JMwaQqHuk=; b=13pOMmKSTA3/De LMn1QsQjowy2J51axH2VjwVIGvrasMmXAhLEmbcyfHGIR2TQyOhrqwjZaodc6cQBYS+b9YIv7EOo5 TBTRN5wnBvO8MuwDNHctwJeQYoH5IulbsyYOlKpwnZiio451kosaC6v8lt8QPLIrFCPodw5EMe6KP urxqLaYgGNOaNVzxN2HQ5MOGvTzF27H+X9Mwcyu/JXHqUaUSfU3mwRKqS8JQR5eNQy694614e3Jpc dkkmklZR7q/jnnMyaJ6PZCWeh1VBTDjuxddORAQqN9Oh9bXNC4Iin5xUZTY4QzbpGT95eIq6kiPAU cdBodP9/bF9JWmHBKXYw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nh7gh-008cxj-Ga; Wed, 20 Apr 2022 10:35:55 +0000 Received: from esa.microchip.iphmx.com ([68.232.153.233]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nh7fo-008cKc-84 for linux-mtd@lists.infradead.org; Wed, 20 Apr 2022 10:35:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1650450900; x=1681986900; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=CgU0M9Ctm66tAtz7ZrqfIj4aDO8PJLE7JPM+0GAyffk=; b=jeKx6QrrWKZS1S17pJQB3J6I9Xved143wqexzE/cfOWDR51WbQzYBepj zlCClAzvfWuQIb1J0if2KGzAGu5p2UeyE+coFG8sqPvL31VavT/aUciw6 0q9uxQwxRkJrHALZ7jcfXsIx9bd0wg/HjGu3w/VRDQVkHBqE+2qpIg8Ai NksXN5YfeVFvT8l1s4ILnf8d+Kxy8ze1Wx+Rim9mlpyKcmPzyY2lydV5+ aHMbGfLGFJk58nCCk/JUo9ygAjjzO3AVl85mqoeQ3bk5RNR8ZgtclOtId IrhPFkcWRmzzoKhRrUIDRffYhZjDv8trlgCIVbkA6dusGiLfaigwsJ7Px A==; X-IronPort-AV: E=Sophos;i="5.90,275,1643698800"; d="scan'208";a="170245898" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 20 Apr 2022 03:34:59 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Wed, 20 Apr 2022 03:34:58 -0700 Received: from ROB-ULT-M18064N.mchp-main.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Wed, 20 Apr 2022 03:34:56 -0700 From: Tudor Ambarus To: , CC: , , , , , , Tudor Ambarus Subject: [PATCH v4 11/11] mtd: spi-nor: micron-st: Remove status polling on volatile registers write Date: Wed, 20 Apr 2022 13:34:27 +0300 Message-ID: <20220420103427.47867-12-tudor.ambarus@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220420103427.47867-1-tudor.ambarus@microchip.com> References: <20220420103427.47867-1-tudor.ambarus@microchip.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220420_033500_370735_D0083868 X-CRM114-Status: UNSURE ( 7.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Writing volatile registers are instant according to Micron and do not need any status polling. Remove status polling on volatile registers write. Signed-off-by: Tudor Ambarus --- drivers/mtd/spi-nor/micron-st.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c index 61db4896e327..a96f74e0f568 100644 --- a/drivers/mtd/spi-nor/micron-st.c +++ b/drivers/mtd/spi-nor/micron-st.c @@ -58,9 +58,6 @@ static int micron_st_nor_octal_dtr_en(struct spi_nor *nor) op = (struct spi_mem_op) MICRON_ST_NOR_WR_ANY_REG_OP(3, SPINOR_REG_MT_CFR1V, 1, buf); ret = spi_nor_write_any_volatile_reg(nor, &op, nor->reg_proto); - if (ret) - return ret; - ret = spi_nor_wait_till_ready(nor); if (ret) return ret; -- 2.25.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/