From patchwork Sun Aug 20 08:20:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Biju Das X-Patchwork-Id: 715277 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 1E421EE49A5 for ; Sun, 20 Aug 2023 08:20:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230161AbjHTIUv (ORCPT ); Sun, 20 Aug 2023 04:20:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49370 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230140AbjHTIUs (ORCPT ); Sun, 20 Aug 2023 04:20:48 -0400 Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 904EA10F5; Sun, 20 Aug 2023 01:20:12 -0700 (PDT) X-IronPort-AV: E=Sophos;i="6.01,187,1684767600"; d="scan'208";a="173382663" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 20 Aug 2023 17:20:11 +0900 Received: from localhost.localdomain (unknown [10.226.92.18]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 2BCDA400449D; Sun, 20 Aug 2023 17:20:08 +0900 (JST) From: Biju Das To: Pavel Machek , Lee Jones Cc: Biju Das , linux-leds@vger.kernel.org, Geert Uytterhoeven , Andy Shevchenko , linux-renesas-soc@vger.kernel.org Subject: [PATCH] leds: pca955x: Convert enum->pointer for data in the match tables Date: Sun, 20 Aug 2023 09:20:05 +0100 Message-Id: <20230820082005.55124-1-biju.das.jz@bp.renesas.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-leds@vger.kernel.org Convert enum->pointer for data in the match tables, so that device_get_match_data() can do match against OF/ACPI/I2C tables, once i2c bus type match support added to it. Replace enum->struct *pca955x_chipdefs for data in the match table. Simplify the probe() by replacing device_get_match_data() and ID lookup for retrieving data by i2c_get_match_data(). While at it, add const definition to pca955x_chipdefs[]. Signed-off-by: Biju Das Reviewed-by: Lee Jones --- Note: This patch is only compile tested. --- drivers/leds/leds-pca955x.c | 45 +++++++++++++------------------------ 1 file changed, 16 insertions(+), 29 deletions(-) diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index b10e1ef38db0..e28fd205678e 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -76,7 +76,7 @@ struct pca955x_chipdef { int slv_addr_shift; /* Number of bits to ignore */ }; -static struct pca955x_chipdef pca955x_chipdefs[] = { +static const struct pca955x_chipdef pca955x_chipdefs[] = { [pca9550] = { .bits = 2, .slv_addr = /* 110000x */ 0x60, @@ -105,11 +105,11 @@ static struct pca955x_chipdef pca955x_chipdefs[] = { }; static const struct i2c_device_id pca955x_id[] = { - { "pca9550", pca9550 }, - { "pca9551", pca9551 }, - { "pca9552", pca9552 }, - { "ibm-pca9552", ibm_pca9552 }, - { "pca9553", pca9553 }, + { "pca9550", (kernel_ulong_t)&pca955x_chipdefs[pca9550] }, + { "pca9551", (kernel_ulong_t)&pca955x_chipdefs[pca9551] }, + { "pca9552", (kernel_ulong_t)&pca955x_chipdefs[pca9552] }, + { "ibm-pca9552", (kernel_ulong_t)&pca955x_chipdefs[ibm_pca9552] }, + { "pca9553", (kernel_ulong_t)&pca955x_chipdefs[pca9553] }, { } }; MODULE_DEVICE_TABLE(i2c, pca955x_id); @@ -458,11 +458,11 @@ pca955x_get_pdata(struct i2c_client *client, struct pca955x_chipdef *chip) } static const struct of_device_id of_pca955x_match[] = { - { .compatible = "nxp,pca9550", .data = (void *)pca9550 }, - { .compatible = "nxp,pca9551", .data = (void *)pca9551 }, - { .compatible = "nxp,pca9552", .data = (void *)pca9552 }, - { .compatible = "ibm,pca9552", .data = (void *)ibm_pca9552 }, - { .compatible = "nxp,pca9553", .data = (void *)pca9553 }, + { .compatible = "nxp,pca9550", .data = &pca955x_chipdefs[pca9550] }, + { .compatible = "nxp,pca9551", .data = &pca955x_chipdefs[pca9551] }, + { .compatible = "nxp,pca9552", .data = &pca955x_chipdefs[pca9552] }, + { .compatible = "ibm,pca9552", .data = &pca955x_chipdefs[ibm_pca9552] }, + { .compatible = "nxp,pca9553", .data = &pca955x_chipdefs[pca9553] }, {}, }; MODULE_DEVICE_TABLE(of, of_pca955x_match); @@ -471,7 +471,7 @@ static int pca955x_probe(struct i2c_client *client) { struct pca955x *pca955x; struct pca955x_led *pca955x_led; - struct pca955x_chipdef *chip; + const struct pca955x_chipdef *chip; struct led_classdev *led; struct led_init_data init_data; struct i2c_adapter *adapter; @@ -480,24 +480,11 @@ static int pca955x_probe(struct i2c_client *client) bool set_default_label = false; bool keep_pwm = false; char default_label[8]; - enum pca955x_type chip_type; - const void *md = device_get_match_data(&client->dev); - - if (md) { - chip_type = (enum pca955x_type)md; - } else { - const struct i2c_device_id *id = i2c_match_id(pca955x_id, - client); - - if (id) { - chip_type = (enum pca955x_type)id->driver_data; - } else { - dev_err(&client->dev, "unknown chip\n"); - return -ENODEV; - } - } - chip = &pca955x_chipdefs[chip_type]; + chip = i2c_get_match_data(&client->dev); + if (!chip) + return dev_err_probe(&client->dev, -ENODEV, "unknown chip\n"); + adapter = client->adapter; pdata = dev_get_platdata(&client->dev); if (!pdata) {