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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 185E9C433E7 for ; Mon, 12 Oct 2020 18:04:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D15E52076D for ; Mon, 12 Oct 2020 18:04:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="fW/0kdqW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404157AbgJLSEb (ORCPT ); Mon, 12 Oct 2020 14:04:31 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:58586 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404127AbgJLSE0 (ORCPT ); Mon, 12 Oct 2020 14:04:26 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 09CI4BDZ055219; Mon, 12 Oct 2020 13:04:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1602525851; bh=azEppzwQrP6Fp1xWnR9MjTTXT2K8wTwQGMzH5evrkQw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=fW/0kdqWG2irn8/SYs1V3aJT/mlvi+npXEAejaS38XZLZTmR4tQfO6sY3BgerhngN y9w9h/FwpBi5xdFlqDtmiRV3Ng+HjYIfc/7/j5nllorJSPqI7GnjdlotTKPONIbieu 6ikVqHixgZikyKmo+TxtfFpfvhH7E3ZCOOx1v7Go= Received: from DFLE110.ent.ti.com (dfle110.ent.ti.com [10.64.6.31]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 09CI4BZZ100729 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 12 Oct 2020 13:04:11 -0500 Received: from DFLE102.ent.ti.com (10.64.6.23) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Mon, 12 Oct 2020 13:04:10 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Mon, 12 Oct 2020 13:04:10 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 09CI45j3021531; Mon, 12 Oct 2020 13:04:08 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , , CC: Pratyush Yadav Subject: [PATCH 1/3] mtd: abi: Introduce MTD_NO_MULTI_PASS_WRITE Date: Mon, 12 Oct 2020 23:34:02 +0530 Message-ID: <20201012180404.6476-2-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201012180404.6476-1-p.yadav@ti.com> References: <20201012180404.6476-1-p.yadav@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some flashes like the Semper S28 family do not support multi-pass page programming. Introduce the flag MTD_NO_MULTI_PASS_WRITE to allow telling upper layers this information so they can issue write commands with this limitation in mind. Signed-off-by: Pratyush Yadav --- include/uapi/mtd/mtd-abi.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h index 65b9db936557..a2cab30adac5 100644 --- a/include/uapi/mtd/mtd-abi.h +++ b/include/uapi/mtd/mtd-abi.h @@ -105,6 +105,7 @@ struct mtd_write_req { #define MTD_NO_ERASE 0x1000 /* No erase necessary */ #define MTD_POWERUP_LOCK 0x2000 /* Always locked after reset */ #define MTD_SLC_ON_MLC_EMULATION 0x4000 /* Emulate SLC behavior on MLC NANDs */ +#define MTD_NO_MULTI_PASS_WRITE 0x8000 /* Some common devices / combinations of capabilities */ #define MTD_CAP_ROM 0 -- 2.28.0