From patchwork Wed Oct 12 14:25:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Kitt X-Patchwork-Id: 614927 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 5DE7AC433FE for ; Wed, 12 Oct 2022 17:31:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229653AbiJLRbC (ORCPT ); Wed, 12 Oct 2022 13:31:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46778 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229695AbiJLRbA (ORCPT ); Wed, 12 Oct 2022 13:31:00 -0400 X-Greylist: delayed 4199 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 12 Oct 2022 10:30:59 PDT Received: from 19.mo581.mail-out.ovh.net (19.mo581.mail-out.ovh.net [178.33.251.118]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C95F6684D for ; Wed, 12 Oct 2022 10:30:59 -0700 (PDT) Received: from player788.ha.ovh.net (unknown [10.109.143.246]) by mo581.mail-out.ovh.net (Postfix) with ESMTP id D5D5024FDC for ; Wed, 12 Oct 2022 14:25:43 +0000 (UTC) Received: from sk2.org (82-65-25-201.subs.proxad.net [82.65.25.201]) (Authenticated sender: steve@sk2.org) by player788.ha.ovh.net (Postfix) with ESMTPSA id 5AC742F9B390F; Wed, 12 Oct 2022 14:25:39 +0000 (UTC) Authentication-Results: garm.ovh; auth=pass (GARM-102R0049184b12f-2b4e-4dcb-9236-01c8d45e0aad, 75377E6B882747309559AE06BD3DFEEF97A89409) smtp.auth=steve@sk2.org X-OVh-ClientIp: 82.65.25.201 From: Stephen Kitt To: Linus Walleij , Bartosz Golaszewski Cc: Stephen Kitt , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] drivers/gpio: use simple i2c probe Date: Wed, 12 Oct 2022 16:25:23 +0200 Message-Id: <20221012142524.3920266-1-steve@sk2.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Ovh-Tracer-Id: 14872856296705656539 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvfedrfeejkedgjeeiucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefufffkofgggfestdekredtredttdenucfhrhhomhepufhtvghphhgvnhcumfhithhtuceoshhtvghvvgesshhkvddrohhrgheqnecuggftrfgrthhtvghrnhepleegteeujeffjeefjeevhfdtudefjefgteelgedtudekleeiledvvdetudevjedtnecukfhppeduvdejrddtrddtrddupdekvddrieehrddvhedrvddtudenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduvdejrddtrddtrddupdhmrghilhhfrhhomhepoehsthgvvhgvsehskhdvrdhorhhgqedpnhgspghrtghpthhtohepuddprhgtphhtthhopehlihhnuhigqdhgphhiohesvhhgvghrrdhkvghrnhgvlhdrohhrghdpoffvtefjohhsthepmhhoheekuddpmhhouggvpehsmhhtphhouhht Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org All these drivers have an i2c probe function which doesn't use the "struct i2c_device_id *id" parameter, so they can trivially be converted to the "probe_new" style of probe with a single argument. This is part of an ongoing transition to single-argument i2c probe functions. Old-style probe functions involve a call to i2c_match_id: in drivers/i2c/i2c-core-base.c, /* * When there are no more users of probe(), * rename probe_new to probe. */ if (driver->probe_new) status = driver->probe_new(client); else if (driver->probe) status = driver->probe(client, i2c_match_id(driver->id_table, client)); else status = -EINVAL; Drivers which don't need the second parameter can be declared using probe_new instead, avoiding the call to i2c_match_id. Drivers which do can still be converted to probe_new-style, calling i2c_match_id themselves (as is done currently for of_match_id). This change was done using the following Coccinelle script, and fixed up for whitespace changes: @ rule1 @ identifier fn; identifier client, id; @@ - static int fn(struct i2c_client *client, const struct i2c_device_id *id) + static int fn(struct i2c_client *client) { ...when != id } @ rule2 depends on rule1 @ identifier rule1.fn; identifier driver; @@ struct i2c_driver driver = { - .probe + .probe_new = ( fn | - &fn + fn ) , }; Signed-off-by: Stephen Kitt --- drivers/gpio/gpio-gw-pld.c | 5 ++--- drivers/gpio/gpio-max7300.c | 5 ++--- drivers/gpio/gpio-tpic2810.c | 5 ++--- drivers/gpio/gpio-ts4900.c | 5 ++--- 4 files changed, 8 insertions(+), 12 deletions(-) base-commit: 833477fce7a14d43ae4c07f8ddc32fa5119471a2 diff --git a/drivers/gpio/gpio-gw-pld.c b/drivers/gpio/gpio-gw-pld.c index 2109803ffb38..5057fa9ad610 100644 --- a/drivers/gpio/gpio-gw-pld.c +++ b/drivers/gpio/gpio-gw-pld.c @@ -67,8 +67,7 @@ static void gw_pld_set8(struct gpio_chip *gc, unsigned offset, int value) gw_pld_output8(gc, offset, value); } -static int gw_pld_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int gw_pld_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct gw_pld *gw; @@ -126,7 +125,7 @@ static struct i2c_driver gw_pld_driver = { .name = "gw_pld", .of_match_table = gw_pld_dt_ids, }, - .probe = gw_pld_probe, + .probe_new = gw_pld_probe, .id_table = gw_pld_id, }; module_i2c_driver(gw_pld_driver); diff --git a/drivers/gpio/gpio-max7300.c b/drivers/gpio/gpio-max7300.c index 43da381a4d7e..cf482f4f0098 100644 --- a/drivers/gpio/gpio-max7300.c +++ b/drivers/gpio/gpio-max7300.c @@ -28,8 +28,7 @@ static int max7300_i2c_read(struct device *dev, unsigned int reg) return i2c_smbus_read_byte_data(client, reg); } -static int max7300_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int max7300_probe(struct i2c_client *client) { struct max7301 *ts; @@ -63,7 +62,7 @@ static struct i2c_driver max7300_driver = { .driver = { .name = "max7300", }, - .probe = max7300_probe, + .probe_new = max7300_probe, .remove = max7300_remove, .id_table = max7300_id, }; diff --git a/drivers/gpio/gpio-tpic2810.c b/drivers/gpio/gpio-tpic2810.c index d642c35cb97c..349c5fbd9b02 100644 --- a/drivers/gpio/gpio-tpic2810.c +++ b/drivers/gpio/gpio-tpic2810.c @@ -98,8 +98,7 @@ static const struct of_device_id tpic2810_of_match_table[] = { }; MODULE_DEVICE_TABLE(of, tpic2810_of_match_table); -static int tpic2810_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int tpic2810_probe(struct i2c_client *client) { struct tpic2810 *gpio; int ret; @@ -144,7 +143,7 @@ static struct i2c_driver tpic2810_driver = { .name = "tpic2810", .of_match_table = tpic2810_of_match_table, }, - .probe = tpic2810_probe, + .probe_new = tpic2810_probe, .remove = tpic2810_remove, .id_table = tpic2810_id_table, }; diff --git a/drivers/gpio/gpio-ts4900.c b/drivers/gpio/gpio-ts4900.c index 416725c26e94..43e8b66e04f7 100644 --- a/drivers/gpio/gpio-ts4900.c +++ b/drivers/gpio/gpio-ts4900.c @@ -136,8 +136,7 @@ static const struct of_device_id ts4900_gpio_of_match_table[] = { }; MODULE_DEVICE_TABLE(of, ts4900_gpio_of_match_table); -static int ts4900_gpio_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int ts4900_gpio_probe(struct i2c_client *client) { struct ts4900_gpio_priv *priv; u32 ngpio; @@ -186,7 +185,7 @@ static struct i2c_driver ts4900_gpio_driver = { .name = "ts4900-gpio", .of_match_table = ts4900_gpio_of_match_table, }, - .probe = ts4900_gpio_probe, + .probe_new = ts4900_gpio_probe, .id_table = ts4900_gpio_id_table, }; module_i2c_driver(ts4900_gpio_driver);