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=-13.6 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=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 77FE2C4363A for ; Mon, 5 Oct 2020 15:37:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3D0302075A for ; Mon, 5 Oct 2020 15:37:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="C6yeSu9g" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728248AbgJEPhr (ORCPT ); Mon, 5 Oct 2020 11:37:47 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:57236 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727940AbgJEPcD (ORCPT ); Mon, 5 Oct 2020 11:32:03 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 095FVn40129086; Mon, 5 Oct 2020 10:31:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1601911909; bh=Td3Y0lgClZqA+Zrig0Fp3EALnlOS4uPIOQE6gB1VwEA=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=C6yeSu9g53jljrpU++gHLNJ2ScszuJfDnvE0uA/xMFeznn4veJ8/PP/f288dCTnuB +lSEIRZKkyWmSJ9yo4aegYcZmj+AetTZBhMHGfbq8IzvsvRdROQK301Og6dDplWIWZ tklya0ooNe4Xu3vPDHxgncAY1u9ciK02+nd30Oq0= Received: from DLEE115.ent.ti.com (dlee115.ent.ti.com [157.170.170.26]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 095FVnWI055048 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 5 Oct 2020 10:31:49 -0500 Received: from DLEE112.ent.ti.com (157.170.170.23) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Mon, 5 Oct 2020 10:31:48 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE112.ent.ti.com (157.170.170.23) 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, 5 Oct 2020 10:31:48 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 095FVdli052390; Mon, 5 Oct 2020 10:31:46 -0500 From: Pratyush Yadav To: Tudor Ambarus , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , , CC: Pratyush Yadav , Sekhar Nori , Boris Brezillon Subject: [PATCH v16 02/15] mtd: spi-nor: add spi_nor_controller_ops_{read_reg,write_reg,erase}() Date: Mon, 5 Oct 2020 21:01:25 +0530 Message-ID: <20201005153138.6437-3-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201005153138.6437-1-p.yadav@ti.com> References: <20201005153138.6437-1-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 They are thin wrappers around nor->controller_ops->{read_reg,write_reg,erase}(). In a future commit DTR support will be added. These ops can not be supported by the controller_ops hooks and these helpers will make it easier to reject those calls. Signed-off-by: Pratyush Yadav Reviewed-by: Tudor Ambarus --- drivers/mtd/spi-nor/core.c | 87 +++++++++++++++++++++++--------------- 1 file changed, 53 insertions(+), 34 deletions(-) diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 4d0f8d165544..7a3bf460a2fa 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -82,6 +82,23 @@ static int spi_nor_spimem_exec_op(struct spi_nor *nor, struct spi_mem_op *op) return spi_mem_exec_op(nor->spimem, op); } +static int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode, + u8 *buf, size_t len) +{ + return nor->controller_ops->read_reg(nor, opcode, buf, len); +} + +static int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode, + const u8 *buf, size_t len) +{ + return nor->controller_ops->write_reg(nor, opcode, buf, len); +} + +static int spi_nor_controller_ops_erase(struct spi_nor *nor, loff_t offs) +{ + return nor->controller_ops->erase(nor, offs); +} + /** * spi_nor_spimem_read_data() - read data from flash's memory region via * spi-mem @@ -229,8 +246,8 @@ int spi_nor_write_enable(struct spi_nor *nor) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_WREN, + NULL, 0); } if (ret) @@ -258,8 +275,8 @@ int spi_nor_write_disable(struct spi_nor *nor) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRDI, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_WRDI, + NULL, 0); } if (ret) @@ -289,8 +306,8 @@ static int spi_nor_read_sr(struct spi_nor *nor, u8 *sr) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->read_reg(nor, SPINOR_OP_RDSR, - sr, 1); + ret = spi_nor_controller_ops_read_reg(nor, SPINOR_OP_RDSR, sr, + 1); } if (ret) @@ -320,8 +337,8 @@ static int spi_nor_read_fsr(struct spi_nor *nor, u8 *fsr) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->read_reg(nor, SPINOR_OP_RDFSR, - fsr, 1); + ret = spi_nor_controller_ops_read_reg(nor, SPINOR_OP_RDFSR, fsr, + 1); } if (ret) @@ -352,7 +369,8 @@ static int spi_nor_read_cr(struct spi_nor *nor, u8 *cr) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->read_reg(nor, SPINOR_OP_RDCR, cr, 1); + ret = spi_nor_controller_ops_read_reg(nor, SPINOR_OP_RDCR, cr, + 1); } if (ret) @@ -385,10 +403,10 @@ int spi_nor_set_4byte_addr_mode(struct spi_nor *nor, bool enable) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, - enable ? SPINOR_OP_EN4B : - SPINOR_OP_EX4B, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, + enable ? SPINOR_OP_EN4B : + SPINOR_OP_EX4B, + NULL, 0); } if (ret) @@ -421,8 +439,8 @@ static int spansion_set_4byte_addr_mode(struct spi_nor *nor, bool enable) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_BRWR, - nor->bouncebuf, 1); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_BRWR, + nor->bouncebuf, 1); } if (ret) @@ -453,8 +471,8 @@ int spi_nor_write_ear(struct spi_nor *nor, u8 ear) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREAR, - nor->bouncebuf, 1); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_WREAR, + nor->bouncebuf, 1); } if (ret) @@ -484,8 +502,8 @@ int spi_nor_xread_sr(struct spi_nor *nor, u8 *sr) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->read_reg(nor, SPINOR_OP_XRDSR, - sr, 1); + ret = spi_nor_controller_ops_read_reg(nor, SPINOR_OP_XRDSR, sr, + 1); } if (ret) @@ -529,8 +547,8 @@ static void spi_nor_clear_sr(struct spi_nor *nor) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CLSR, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_CLSR, + NULL, 0); } if (ret) @@ -593,8 +611,8 @@ static void spi_nor_clear_fsr(struct spi_nor *nor) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CLFSR, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_CLFSR, + NULL, 0); } if (ret) @@ -737,8 +755,8 @@ static int spi_nor_write_sr(struct spi_nor *nor, const u8 *sr, size_t len) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR, - sr, len); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_WRSR, sr, + len); } if (ret) { @@ -939,8 +957,8 @@ static int spi_nor_write_sr2(struct spi_nor *nor, const u8 *sr2) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WRSR2, - sr2, 1); + ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_WRSR2, + sr2, 1); } if (ret) { @@ -973,8 +991,8 @@ static int spi_nor_read_sr2(struct spi_nor *nor, u8 *sr2) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->read_reg(nor, SPINOR_OP_RDSR2, - sr2, 1); + ret = spi_nor_controller_ops_read_reg(nor, SPINOR_OP_RDSR2, sr2, + 1); } if (ret) @@ -1004,8 +1022,9 @@ static int spi_nor_erase_chip(struct spi_nor *nor) ret = spi_mem_exec_op(nor->spimem, &op); } else { - ret = nor->controller_ops->write_reg(nor, SPINOR_OP_CHIP_ERASE, - NULL, 0); + ret = spi_nor_controller_ops_write_reg(nor, + SPINOR_OP_CHIP_ERASE, + NULL, 0); } if (ret) @@ -1146,7 +1165,7 @@ static int spi_nor_erase_sector(struct spi_nor *nor, u32 addr) return spi_mem_exec_op(nor->spimem, &op); } else if (nor->controller_ops->erase) { - return nor->controller_ops->erase(nor, addr); + return spi_nor_controller_ops_erase(nor, addr); } /* @@ -1158,8 +1177,8 @@ static int spi_nor_erase_sector(struct spi_nor *nor, u32 addr) addr >>= 8; } - return nor->controller_ops->write_reg(nor, nor->erase_opcode, - nor->bouncebuf, nor->addr_width); + return spi_nor_controller_ops_write_reg(nor, nor->erase_opcode, + nor->bouncebuf, nor->addr_width); } /** -- 2.28.0