From patchwork Sat Sep 9 12:19:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 721184 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 DAFABEEB58F for ; Sat, 9 Sep 2023 12:19:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345651AbjIIMTV (ORCPT ); Sat, 9 Sep 2023 08:19:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233109AbjIIMTT (ORCPT ); Sat, 9 Sep 2023 08:19:19 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6439ECD6; Sat, 9 Sep 2023 05:19:15 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.02,239,1688396400"; d="scan'208";a="179248595" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 09 Sep 2023 21:19:15 +0900 Received: from localhost.localdomain (unknown [10.226.92.15]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3B22241EBFFC; Sat, 9 Sep 2023 21:19:12 +0900 (JST) From: Biju Das To: Linus Walleij Cc: Biju Das , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Biju Das , Andy Shevchenko Subject: [PATCH v2 2/4] pinctrl: mcp23s08_i2c: Simplify probe() Date: Sat, 9 Sep 2023 13:19:01 +0100 Message-Id: <20230909121903.34062-3-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230909121903.34062-1-biju.das.jz@bp.renesas.com> References: <20230909121903.34062-1-biju.das.jz@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add struct mcp23s08_i2c_info and simplify probe() by replacing match data 'type' with 'struct mcp23s08_i2c_info'. While at it, replace 'dev_err()'->'dev_err_probe()' and drop printing 'type' in error path for i2c_get_match_data(). Signed-off-by: Biju Das --- v1->v2: * Updated commit description * Dropped printing 'type' in error path for i2c_get_match_data(). --- drivers/pinctrl/pinctrl-mcp23s08_i2c.c | 101 ++++++++++++------------- 1 file changed, 49 insertions(+), 52 deletions(-) diff --git a/drivers/pinctrl/pinctrl-mcp23s08_i2c.c b/drivers/pinctrl/pinctrl-mcp23s08_i2c.c index 41ea2650a7e4..34b2cfb45860 100644 --- a/drivers/pinctrl/pinctrl-mcp23s08_i2c.c +++ b/drivers/pinctrl/pinctrl-mcp23s08_i2c.c @@ -8,52 +8,40 @@ #include "pinctrl-mcp23s08.h" +struct mcp23s08_i2c_info { + const struct regmap_config *regmap; + const char *label; + unsigned int type; + u16 ngpio; + bool reg_shift; +}; + static int mcp230xx_probe(struct i2c_client *client) { + const struct mcp23s08_i2c_info *info; struct device *dev = &client->dev; struct mcp23s08 *mcp; - unsigned int type; int ret; mcp = devm_kzalloc(dev, sizeof(*mcp), GFP_KERNEL); if (!mcp) return -ENOMEM; - type = (uintptr_t)i2c_get_match_data(client); - switch (type) { - case MCP_TYPE_008: - mcp->regmap = devm_regmap_init_i2c(client, &mcp23x08_regmap); - mcp->reg_shift = 0; - mcp->chip.ngpio = 8; - mcp->chip.label = "mcp23008"; - break; - - case MCP_TYPE_017: - mcp->regmap = devm_regmap_init_i2c(client, &mcp23x17_regmap); - mcp->reg_shift = 1; - mcp->chip.ngpio = 16; - mcp->chip.label = "mcp23017"; - break; - - case MCP_TYPE_018: - mcp->regmap = devm_regmap_init_i2c(client, &mcp23x17_regmap); - mcp->reg_shift = 1; - mcp->chip.ngpio = 16; - mcp->chip.label = "mcp23018"; - break; - - default: - dev_err(dev, "invalid device type (%d)\n", type); - return -EINVAL; - } + info = i2c_get_match_data(client); + if (!info) + return dev_err_probe(dev, -EINVAL, "invalid device type\n"); + mcp->reg_shift = info->reg_shift; + mcp->chip.ngpio = info->ngpio; + mcp->chip.label = info->label; + mcp->regmap = devm_regmap_init_i2c(client, info->regmap); if (IS_ERR(mcp->regmap)) return PTR_ERR(mcp->regmap); mcp->irq = client->irq; mcp->pinctrl_desc.name = "mcp23xxx-pinctrl"; - ret = mcp23s08_probe_one(mcp, dev, client->addr, type, -1); + ret = mcp23s08_probe_one(mcp, dev, client->addr, info->type, -1); if (ret) return ret; @@ -62,36 +50,45 @@ static int mcp230xx_probe(struct i2c_client *client) return 0; } +static const struct mcp23s08_i2c_info mcp23s08_i2c_0008 = { + .regmap = &mcp23x08_regmap, + .label = "mcp23008", + .type = MCP_TYPE_008, + .ngpio = 8, + .reg_shift = 0, +}; + +static const struct mcp23s08_i2c_info mcp23s08_i2c_0017 = { + .regmap = &mcp23x17_regmap, + .label = "mcp23017", + .type = MCP_TYPE_017, + .ngpio = 16, + .reg_shift = 1, +}; + +static const struct mcp23s08_i2c_info mcp23s08_i2c_0018 = { + .regmap = &mcp23x17_regmap, + .label = "mcp23018", + .type = MCP_TYPE_018, + .ngpio = 16, + .reg_shift = 1, +}; + static const struct i2c_device_id mcp230xx_id[] = { - { "mcp23008", MCP_TYPE_008 }, - { "mcp23017", MCP_TYPE_017 }, - { "mcp23018", MCP_TYPE_018 }, + { "mcp23008", (kernel_ulong_t)&mcp23s08_i2c_0008 }, + { "mcp23017", (kernel_ulong_t)&mcp23s08_i2c_0017 }, + { "mcp23018", (kernel_ulong_t)&mcp23s08_i2c_0018 }, { } }; MODULE_DEVICE_TABLE(i2c, mcp230xx_id); static const struct of_device_id mcp23s08_i2c_of_match[] = { - { - .compatible = "microchip,mcp23008", - .data = (void *) MCP_TYPE_008, - }, - { - .compatible = "microchip,mcp23017", - .data = (void *) MCP_TYPE_017, - }, - { - .compatible = "microchip,mcp23018", - .data = (void *) MCP_TYPE_018, - }, + { .compatible = "microchip,mcp23008", .data = &mcp23s08_i2c_0008 }, + { .compatible = "microchip,mcp23017", .data = &mcp23s08_i2c_0017 }, + { .compatible = "microchip,mcp23018", .data = &mcp23s08_i2c_0018 }, /* NOTE: The use of the mcp prefix is deprecated and will be removed. */ - { - .compatible = "mcp,mcp23008", - .data = (void *) MCP_TYPE_008, - }, - { - .compatible = "mcp,mcp23017", - .data = (void *) MCP_TYPE_017, - }, + { .compatible = "mcp,mcp23008", .data = &mcp23s08_i2c_0008 }, + { .compatible = "mcp,mcp23017", .data = &mcp23s08_i2c_0017 }, { } }; MODULE_DEVICE_TABLE(of, mcp23s08_i2c_of_match);