From patchwork Wed Sep 14 15:15:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martyn Welch X-Patchwork-Id: 605955 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 65B38C6FA8D for ; Wed, 14 Sep 2022 15:16:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230208AbiINPQN (ORCPT ); Wed, 14 Sep 2022 11:16:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47962 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230131AbiINPQL (ORCPT ); Wed, 14 Sep 2022 11:16:11 -0400 Received: from madras.collabora.co.uk (madras.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e5ab]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 93F537D1D1; Wed, 14 Sep 2022 08:16:10 -0700 (PDT) Received: from pan.home (unknown [IPv6:2a00:23c6:c311:3401:435d:1590:4ce7:da62]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: martyn) by madras.collabora.co.uk (Postfix) with ESMTPSA id 41F426601F88; Wed, 14 Sep 2022 16:16:09 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.co.uk; s=mail; t=1663168569; bh=0quf9av7IJe/WYfnv44p7AeJsmd86GwbyXpXrmXnQD8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iUWPFaOafekZRRUTIUT4+gx4h3QDBhlNA4BuYYhK6ojvZfghIkrXDQeG1vSTh8WnP ySt2LCcWsAlHIobLSFo7D7ZiY1rpEtxW6NSAodEUf+AWFYoeFzWsnq67hZfCRcIhpY lL9t7sGn5gLQp/nP6yDMEGr7nr7RwN7WDs5QLEzkVV35AFvIsazoWG7APT+Hn9546P 7UPgZpf80LdPXPg/803dGL43M6YOTUVGYBVV/QWyt9ehwEEmRlIyNPR6YFYAYSc8A0 +SzJhIIRK9T4osRgymF6CpeUSaXvNB8Ehwx9TVGT6SZl8dL6yKG4FTkYNMwsqmXBbQ udIa9KrHpQ/8w== From: Martyn Welch To: Linus Walleij , Bartosz Golaszewski Cc: Martyn Welch , Andy Shevchenko , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 4/5] gpio: pca953x: Swap if statements to save later complexity Date: Wed, 14 Sep 2022 16:15:56 +0100 Message-Id: <20220914151558.536226-4-martyn.welch@collabora.co.uk> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220914151558.536226-1-martyn.welch@collabora.co.uk> References: <20220914151558.536226-1-martyn.welch@collabora.co.uk> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Martyn Welch A later patch in the series adds support for a further chip type that shares some similarity with the PCA953X_TYPE. In order to keep the logic simple, swap over the if and else portions where checks are made against PCA953X_TYPE and instead check for PCA957X_TYPE. Signed-off-by: Martyn Welch Reviewed-by: Linus Walleij Reviewed-by: Andy Shevchenko --- Changes in v2: - None Changes in v3: - None Changes in v4: - None Changes in v5: - None drivers/gpio/gpio-pca953x.c | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index a6081d93d4fa..c27b83bbbfe1 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -294,13 +294,13 @@ static bool pca953x_readable_register(struct device *dev, unsigned int reg) struct pca953x_chip *chip = dev_get_drvdata(dev); u32 bank; - if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { - bank = PCA953x_BANK_INPUT | PCA953x_BANK_OUTPUT | - PCA953x_BANK_POLARITY | PCA953x_BANK_CONFIG; - } else { + if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { bank = PCA957x_BANK_INPUT | PCA957x_BANK_OUTPUT | PCA957x_BANK_POLARITY | PCA957x_BANK_CONFIG | PCA957x_BANK_BUSHOLD; + } else { + bank = PCA953x_BANK_INPUT | PCA953x_BANK_OUTPUT | + PCA953x_BANK_POLARITY | PCA953x_BANK_CONFIG; } if (chip->driver_data & PCA_PCAL) { @@ -317,12 +317,12 @@ static bool pca953x_writeable_register(struct device *dev, unsigned int reg) struct pca953x_chip *chip = dev_get_drvdata(dev); u32 bank; - if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { - bank = PCA953x_BANK_OUTPUT | PCA953x_BANK_POLARITY | - PCA953x_BANK_CONFIG; - } else { + if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { bank = PCA957x_BANK_OUTPUT | PCA957x_BANK_POLARITY | PCA957x_BANK_CONFIG | PCA957x_BANK_BUSHOLD; + } else { + bank = PCA953x_BANK_OUTPUT | PCA953x_BANK_POLARITY | + PCA953x_BANK_CONFIG; } if (chip->driver_data & PCA_PCAL) @@ -337,10 +337,10 @@ static bool pca953x_volatile_register(struct device *dev, unsigned int reg) struct pca953x_chip *chip = dev_get_drvdata(dev); u32 bank; - if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) - bank = PCA953x_BANK_INPUT; - else + if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) bank = PCA957x_BANK_INPUT; + else + bank = PCA953x_BANK_INPUT; if (chip->driver_data & PCA_PCAL) bank |= PCAL9xxx_BANK_IRQ_STAT; @@ -1071,13 +1071,12 @@ static int pca953x_probe(struct i2c_client *client, /* initialize cached registers from their original values. * we can't share this chip with another i2c master. */ - - if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) { - chip->regs = &pca953x_regs; - ret = device_pca95xx_init(chip, invert); - } else { + if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) { chip->regs = &pca957x_regs; ret = device_pca957x_init(chip, invert); + } else { + chip->regs = &pca953x_regs; + ret = device_pca95xx_init(chip, invert); } if (ret) goto err_exit;