From patchwork Wed Feb 12 00:39:29 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janusz Krzysztofik X-Patchwork-Id: 11377297 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B404D14B4 for ; Wed, 12 Feb 2020 00:40:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8918920848 for ; Wed, 12 Feb 2020 00:40:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IndtyLyV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728148AbgBLAkf (ORCPT ); Tue, 11 Feb 2020 19:40:35 -0500 Received: from mail-lf1-f65.google.com ([209.85.167.65]:35173 "EHLO mail-lf1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728143AbgBLAke (ORCPT ); Tue, 11 Feb 2020 19:40:34 -0500 Received: by mail-lf1-f65.google.com with SMTP id z18so289783lfe.2 for ; Tue, 11 Feb 2020 16:40:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2UEgY4ao2+798RrC+bgRDj1MAy2fBXO4FFMvPRI1C4g=; b=IndtyLyVtvp5a7K9IKZkW7pCthfJxOF/LdZ+pgJGVT4Gb8u/yJr/CPU0GrYi+o44n4 qQFeWSXzNDHCLjyQXTXq2V19GV+YjvFz4ET8lP8UsPB8zDrtpNHuoYcdhXcaYs0oBNAQ byexFtFsf7fcB8MYtQt0ZhrJHDg//JRBcp3BvBnYFEz3Z/TpGOSzp4epjj7OawV/xnVs EGUhAFMh1VVXBvkp5aJvYNPDP1fnVA0z7hc1m0yvrtfQUEX4vVKXSdimWT/zyls8CtGs pOCOWPA/jUJT2fa9fhzjMM45EyUqPefcJUwAvCIFN8U5pu4zLxGWwHlCxpPQUveLN8oA Nsdg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=2UEgY4ao2+798RrC+bgRDj1MAy2fBXO4FFMvPRI1C4g=; b=NvBt4PQN7ef+RO40niM+7TJSexF1CDhP7kuWeg6g7tyhQD18zEGPFW3lcLJqE1WUXZ YQ4a1rIu2BtFsig75M8Sk4+BJrMvftW24sH8gKRI9ysBx0IrznwPI6VRJt1yLRPZhxlM HHYDWnbe2pqxqMcq9A0o7xllASj3xmKqd2MhlrbKrUH7X34Pqcc8+RIHMwfag7YrIRnT G1pYU0ECsh9pAchE3DasT5VmPwDZwHQUT6F0R0v5IBV5iKIugrrc1/DfAX2SZnnNX6ck Ru4hXeZGVqEuooSU+QWNCglS7LbYaSbQX5Frs4Q7CWWe5CoFtJy9L6olS46NY0GldgSo Mxrg== X-Gm-Message-State: APjAAAVmwYSOiVDWjuSswq5mD0fVMYzTgNcMxxpNsyYAiNTGz7C9o3BS RS9boCFlP0LFyCt+6V2+vdw= X-Google-Smtp-Source: APXvYqwGzDZunZ82ZiLa1YumLPIcrrgQ3aVnv5FhxhmDF3C3h64og6Ucdk0KrfRDM6DpAQfsg8Toqg== X-Received: by 2002:ac2:4d04:: with SMTP id r4mr5183706lfi.77.1581468030700; Tue, 11 Feb 2020 16:40:30 -0800 (PST) Received: from z50.gdansk-morena.vectranet.pl (109241122244.gdansk.vectranet.pl. [109.241.122.244]) by smtp.gmail.com with ESMTPSA id e8sm3621935ljb.45.2020.02.11.16.40.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Feb 2020 16:40:30 -0800 (PST) From: Janusz Krzysztofik To: Miquel Raynal , Richard Weinberger Cc: Vignesh Raghavendra , Tony Lindgren , Aaro Koskinen , linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-mtd@lists.infradead.org, Janusz Krzysztofik Subject: [RFC PATCH 14/14] mtd: rawnand: ams-delta: Rename structures and functions to gpio_nand* Date: Wed, 12 Feb 2020 01:39:29 +0100 Message-Id: <20200212003929.6682-15-jmkrzyszt@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200212003929.6682-1-jmkrzyszt@gmail.com> References: <20200212003929.6682-1-jmkrzyszt@gmail.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Another step in preparation for merging the driver with "gpio-nand". Signed-off-by: Janusz Krzysztofik --- drivers/mtd/nand/raw/ams-delta.c | 86 ++++++++++++++++---------------- 1 file changed, 42 insertions(+), 44 deletions(-) diff --git a/drivers/mtd/nand/raw/ams-delta.c b/drivers/mtd/nand/raw/ams-delta.c index 9e659984bf59..6fda2979e820 100644 --- a/drivers/mtd/nand/raw/ams-delta.c +++ b/drivers/mtd/nand/raw/ams-delta.c @@ -29,7 +29,7 @@ /* * MTD structure for E3 (Delta) */ -struct ams_delta_nand { +struct gpio_nand { struct nand_controller base; struct nand_chip nand_chip; struct gpio_desc *gpiod_rdy; @@ -43,19 +43,18 @@ struct ams_delta_nand { bool data_in; unsigned int tRP; unsigned int tWP; - u8 (*io_read)(struct ams_delta_nand *this); - void (*io_write)(struct ams_delta_nand *this, - u8 byte); + u8 (*io_read)(struct gpio_nand *this); + void (*io_write)(struct gpio_nand *this, u8 byte); }; -static void ams_delta_write_commit(struct ams_delta_nand *priv) +static void gpio_nand_write_commit(struct gpio_nand *priv) { gpiod_set_value(priv->gpiod_nwe, 1); ndelay(priv->tWP); gpiod_set_value(priv->gpiod_nwe, 0); } -static void ams_delta_io_write(struct ams_delta_nand *priv, u8 byte) +static void gpio_nand_io_write(struct gpio_nand *priv, u8 byte) { struct gpio_descs *data_gpiods = priv->data_gpiods; DECLARE_BITMAP(values, BITS_PER_TYPE(byte)) = { byte, }; @@ -63,10 +62,10 @@ static void ams_delta_io_write(struct ams_delta_nand *priv, u8 byte) gpiod_set_raw_array_value(data_gpiods->ndescs, data_gpiods->desc, data_gpiods->info, values); - ams_delta_write_commit(priv); + gpio_nand_write_commit(priv); } -static void ams_delta_dir_output(struct ams_delta_nand *priv, u8 byte) +static void gpio_nand_dir_output(struct gpio_nand *priv, u8 byte) { struct gpio_descs *data_gpiods = priv->data_gpiods; DECLARE_BITMAP(values, BITS_PER_TYPE(byte)) = { byte, }; @@ -76,12 +75,12 @@ static void ams_delta_dir_output(struct ams_delta_nand *priv, u8 byte) gpiod_direction_output_raw(data_gpiods->desc[i], test_bit(i, values)); - ams_delta_write_commit(priv); + gpio_nand_write_commit(priv); priv->data_in = false; } -static u8 ams_delta_io_read(struct ams_delta_nand *priv) +static u8 gpio_nand_io_read(struct gpio_nand *priv) { u8 res; struct gpio_descs *data_gpiods = priv->data_gpiods; @@ -99,7 +98,7 @@ static u8 ams_delta_io_read(struct ams_delta_nand *priv) return res; } -static void ams_delta_dir_input(struct ams_delta_nand *priv) +static void gpio_nand_dir_input(struct gpio_nand *priv) { struct gpio_descs *data_gpiods = priv->data_gpiods; int i; @@ -110,68 +109,67 @@ static void ams_delta_dir_input(struct ams_delta_nand *priv) priv->data_in = true; } -static void ams_delta_write_buf(struct ams_delta_nand *priv, const u8 *buf, - int len) +static void gpio_nand_write_buf(struct gpio_nand *priv, const u8 *buf, int len) { int i = 0; if (len > 0 && priv->data_in) - ams_delta_dir_output(priv, buf[i++]); + gpio_nand_dir_output(priv, buf[i++]); while (i < len) priv->io_write(priv, buf[i++]); } -static void ams_delta_read_buf(struct ams_delta_nand *priv, u8 *buf, int len) +static void gpio_nand_read_buf(struct gpio_nand *priv, u8 *buf, int len) { int i; if (priv->data_gpiods && !priv->data_in) - ams_delta_dir_input(priv); + gpio_nand_dir_input(priv); for (i = 0; i < len; i++) buf[i] = priv->io_read(priv); } -static void ams_delta_ctrl_cs(struct ams_delta_nand *priv, bool assert) +static void gpio_nand_ctrl_cs(struct gpio_nand *priv, bool assert) { gpiod_set_value(priv->gpiod_nce, assert); } -static int ams_delta_exec_op(struct nand_chip *this, +static int gpio_nand_exec_op(struct nand_chip *this, const struct nand_operation *op, bool check_only) { - struct ams_delta_nand *priv = nand_get_controller_data(this); + struct gpio_nand *priv = nand_get_controller_data(this); const struct nand_op_instr *instr; int ret = 0; if (check_only) return 0; - ams_delta_ctrl_cs(priv, 1); + gpio_nand_ctrl_cs(priv, 1); for (instr = op->instrs; instr < op->instrs + op->ninstrs; instr++) { switch (instr->type) { case NAND_OP_CMD_INSTR: gpiod_set_value(priv->gpiod_cle, 1); - ams_delta_write_buf(priv, &instr->ctx.cmd.opcode, 1); + gpio_nand_write_buf(priv, &instr->ctx.cmd.opcode, 1); gpiod_set_value(priv->gpiod_cle, 0); break; case NAND_OP_ADDR_INSTR: gpiod_set_value(priv->gpiod_ale, 1); - ams_delta_write_buf(priv, instr->ctx.addr.addrs, + gpio_nand_write_buf(priv, instr->ctx.addr.addrs, instr->ctx.addr.naddrs); gpiod_set_value(priv->gpiod_ale, 0); break; case NAND_OP_DATA_IN_INSTR: - ams_delta_read_buf(priv, instr->ctx.data.buf.in, + gpio_nand_read_buf(priv, instr->ctx.data.buf.in, instr->ctx.data.len); break; case NAND_OP_DATA_OUT_INSTR: - ams_delta_write_buf(priv, instr->ctx.data.buf.out, + gpio_nand_write_buf(priv, instr->ctx.data.buf.out, instr->ctx.data.len); break; @@ -188,15 +186,15 @@ static int ams_delta_exec_op(struct nand_chip *this, break; } - ams_delta_ctrl_cs(priv, 0); + gpio_nand_ctrl_cs(priv, 0); return ret; } -static int ams_delta_setup_data_interface(struct nand_chip *this, int csline, +static int gpio_nand_setup_data_interface(struct nand_chip *this, int csline, const struct nand_data_interface *cf) { - struct ams_delta_nand *priv = nand_get_controller_data(this); + struct gpio_nand *priv = nand_get_controller_data(this); const struct nand_sdr_timings *sdr = nand_get_sdr_timings(cf); struct device *dev = &nand_to_mtd(this)->dev; @@ -217,23 +215,23 @@ static int ams_delta_setup_data_interface(struct nand_chip *this, int csline, return 0; } -static const struct nand_controller_ops ams_delta_ops = { - .exec_op = ams_delta_exec_op, - .setup_data_interface = ams_delta_setup_data_interface, +static const struct nand_controller_ops gpio_nand_ops = { + .exec_op = gpio_nand_exec_op, + .setup_data_interface = gpio_nand_setup_data_interface, }; /* * Main initialization routine */ -static int ams_delta_init(struct platform_device *pdev) +static int gpio_nand_probe(struct platform_device *pdev) { struct gpio_nand_platdata *pdata = dev_get_platdata(&pdev->dev); const struct mtd_partition *partitions = NULL; int num_partitions = 0; - struct ams_delta_nand *priv; + struct gpio_nand *priv; struct nand_chip *this; struct mtd_info *mtd; - int (*probe)(struct platform_device *pdev, struct ams_delta_nand *priv); + int (*probe)(struct platform_device *pdev, struct gpio_nand *priv); int err = 0; if (pdata) { @@ -242,7 +240,7 @@ static int ams_delta_init(struct platform_device *pdev) } /* Allocate memory for MTD device structure and private data */ - priv = devm_kzalloc(&pdev->dev, sizeof(struct ams_delta_nand), + priv = devm_kzalloc(&pdev->dev, sizeof(struct gpio_nand), GFP_KERNEL); if (!priv) return -ENOMEM; @@ -329,8 +327,8 @@ static int ams_delta_init(struct platform_device *pdev) return -ENODEV; } - priv->io_read = ams_delta_io_read; - priv->io_write = ams_delta_io_write; + priv->io_read = gpio_nand_io_read; + priv->io_write = gpio_nand_io_write; priv->data_in = true; } @@ -348,8 +346,8 @@ static int ams_delta_init(struct platform_device *pdev) return -ENODEV; } - /* Initialize the NAND controller object embedded in ams_delta_nand. */ - priv->base.ops = &ams_delta_ops; + /* Initialize the NAND controller object embedded in gpio_nand. */ + priv->base.ops = &gpio_nand_ops; nand_controller_init(&priv->base); this->controller = &priv->base; @@ -385,9 +383,9 @@ static int ams_delta_init(struct platform_device *pdev) /* * Clean up routine */ -static int ams_delta_cleanup(struct platform_device *pdev) +static int gpio_nand_remove(struct platform_device *pdev) { - struct ams_delta_nand *priv = platform_get_drvdata(pdev); + struct gpio_nand *priv = platform_get_drvdata(pdev); struct mtd_info *mtd = nand_to_mtd(&priv->nand_chip); /* Apply write protection */ @@ -415,9 +413,9 @@ static const struct platform_device_id gpio_nand_plat_id_table[] = { }; MODULE_DEVICE_TABLE(of, gpio_nand_plat_id_table); -static struct platform_driver ams_delta_nand_driver = { - .probe = ams_delta_init, - .remove = ams_delta_cleanup, +static struct platform_driver gpio_nand_driver = { + .probe = gpio_nand_probe, + .remove = gpio_nand_remove, .id_table = gpio_nand_plat_id_table, .driver = { .name = "ams-delta-nand", @@ -425,7 +423,7 @@ static struct platform_driver ams_delta_nand_driver = { }, }; -module_platform_driver(ams_delta_nand_driver); +module_platform_driver(gpio_nand_driver); MODULE_LICENSE("GPL v2"); MODULE_AUTHOR("Jonathan McDowell ");