From patchwork Thu Jun 8 07:00:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raag Jadav X-Patchwork-Id: 104840 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp92287vqr; Thu, 8 Jun 2023 00:06:00 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ5vCFonzuX4/oKxLYvDEyNF0kWoUFhN9ZMBVoe2aGqWIZa9PG29ZdP07vYwQUnfgGkqjHUe X-Received: by 2002:a05:6358:bba5:b0:129:be5b:fff with SMTP id df37-20020a056358bba500b00129be5b0fffmr6162376rwb.9.1686207960571; Thu, 08 Jun 2023 00:06:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686207960; cv=none; d=google.com; s=arc-20160816; b=tNGrxwUPbYWQ/iP1yW+uFUHzL0h2HE1TckvIE73RT3BkHfcBfwKCZr0Y4F3BAftDDf 7yfm9FfUoTOXf5qM7D7JF0PGjGWbPdtdiTwzIoSB6HaJFUPLKbvzgch3FLUeqhUPx+bO hhb1cbcg1Ju9Ht7gExQkVoD4f6hr6L/sWGb0DG8siAvi5A7LZF+htC3HgHNEx3uYcUqi 3wYuekJZU4Uv29hxShmIelld6Zloq+Ml7DYrbX5/0Zm4M7O13ftIXfGcrr+lwzHv3wl1 ++tDEDeFQ8abJf3oAo34D3YsXysc4KwAt4XU0LTV5NaK05bbXTu7uGnkQjgBwbADGKGR 7w6Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from:dkim-signature; bh=Lpa+4F6dot7Vr6Y6Gm17X60b5nlO065rdDY8ivQUWUE=; b=Ow+s1O7liq4cLoK4Ef06EAY/jIgWQLvOaWDS7DUDBp44hi4ZFinIV06bC+eyZejXMD WtvhBrkEviJNlZSglIp+qyoc/ow8P0mne1GK0gFfZrQA3vLC1nCsy4ptsIsURjNVBxE2 TT9I5HyRyluqiu0LA0A1eKcj7CjJuxUJCMMZFE5WQowOgGmmZuFy71jLdas0xqVXxk4Q HmZmVmsW4AwCqa9TUemSowR0UX3o2KcuMw2pKHZSjvjvY6f6M/iQJaMmE4SpDd+ScV28 u4nG9ZQ/UhBH4S/7G2dFn8t8dUCFzcK13tWOuonPV2tbJC/yzdL0OGOmvNcBtL6lqkwv eIQA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b="h5y+/OUJ"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (out1.vger.email. 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d="scan'208";a="709867969" Received: from inesxmail01.iind.intel.com ([10.223.154.20]) by orsmga002.jf.intel.com with ESMTP; 08 Jun 2023 00:01:07 -0700 Received: from inlubt0316.iind.intel.com (inlubt0316.iind.intel.com [10.191.20.213]) by inesxmail01.iind.intel.com (Postfix) with ESMTP id 0E9AD1AA12; Thu, 8 Jun 2023 12:31:07 +0530 (IST) Received: by inlubt0316.iind.intel.com (Postfix, from userid 12101951) id 089691DE; Thu, 8 Jun 2023 12:31:07 +0530 (IST) From: Raag Jadav To: linus.walleij@linaro.org, mika.westerberg@linux.intel.com, andriy.shevchenko@linux.intel.com Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, mallikarjunappa.sangannavar@intel.com, pandith.n@intel.com, Raag Jadav Subject: [PATCH v1 1/4] pinctrl: intel: optimize set_mux hook Date: Thu, 8 Jun 2023 12:30:14 +0530 Message-Id: <20230608070017.28072-2-raag.jadav@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230608070017.28072-1-raag.jadav@intel.com> References: <20230608070017.28072-1-raag.jadav@intel.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768117198456506948?= X-GMAIL-MSGID: =?utf-8?q?1768117198456506948?= Utilize a temporary variable for common shift operation inside ->set_mux() hook and save a few bytes. add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-3 (-3) Function old new delta intel_pinmux_set_mux 245 242 -3 Total: Before=10472, After=10469, chg -0.03% Signed-off-by: Raag Jadav --- drivers/pinctrl/intel/pinctrl-intel.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index c7a71c49df0a..e8adf2580321 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -411,18 +411,19 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, /* Now enable the mux setting for each pin in the group */ for (i = 0; i < grp->grp.npins; i++) { void __iomem *padcfg0; - u32 value; + u32 value, pmode; padcfg0 = intel_get_padcfg(pctrl, grp->grp.pins[i], PADCFG0); - value = readl(padcfg0); + value = readl(padcfg0); value &= ~PADCFG0_PMODE_MASK; if (grp->modes) - value |= grp->modes[i] << PADCFG0_PMODE_SHIFT; + pmode = grp->modes[i]; else - value |= grp->mode << PADCFG0_PMODE_SHIFT; + pmode = grp->mode; + value |= pmode << PADCFG0_PMODE_SHIFT; writel(value, padcfg0); } From patchwork Thu Jun 8 07:00:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raag Jadav X-Patchwork-Id: 104842 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp95107vqr; Thu, 8 Jun 2023 00:12:02 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ7kUCe2DqNfYSxT8V8bHoXD4aDUZxtZMKhDJZOAhg8UOZ+V5ZcCukB/30TuZC4mg8THxY4e X-Received: by 2002:a05:6358:1a8a:b0:129:bddf:7960 with SMTP id gm10-20020a0563581a8a00b00129bddf7960mr2010205rwb.16.1686208321840; 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[2620:137:e000::1:20]) by mx.google.com with ESMTP id g2-20020a636b02000000b0053eedcc332esi534116pgc.763.2023.06.08.00.11.44; Thu, 08 Jun 2023 00:12:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=emH37cJ2; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235158AbjFHHCA (ORCPT + 99 others); Thu, 8 Jun 2023 03:02:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234314AbjFHHBw (ORCPT ); Thu, 8 Jun 2023 03:01:52 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADA4C2D70; Thu, 8 Jun 2023 00:01:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686207684; x=1717743684; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=GyImhG9c1FMHW0obFlLkeCzK7gcrJ3l5Zu4ckVFH3As=; b=emH37cJ2XPKiGEF/IGk9gtZRNoNa/5irDLAdeAhJAURFQUNHhqANoKdq 4SOq6cnKZbjfYMPvrBE7VQSKeLEQCp380eWzd+9m9FDYPEYF2mkCAbrpE r0R161eChu0PctMcMGTEqABrSzLUzKdzcF3vujY22LxoK0vPRm7s2xrxN rAMSCn+4A4ayoN7SxxOTYg3v2KxYWZNswROHnCGLUMaRcI3Uwh0UR/7QO 4tqPLISk+S0NbYu1D9KoZRWfyu1cF/mb/oH/kS+whui3c+wpQXIUYhmuH 6qJ8YsTbDy/p2Rz0zpgoySV8fbdv/fgE4cpW77k6i9gXjGA+eoCeuhZBP g==; X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="359696350" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="359696350" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jun 2023 00:01:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="709867971" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="709867971" Received: from inesxmail01.iind.intel.com ([10.223.154.20]) by orsmga002.jf.intel.com with ESMTP; 08 Jun 2023 00:01:07 -0700 Received: from inlubt0316.iind.intel.com (inlubt0316.iind.intel.com [10.191.20.213]) by inesxmail01.iind.intel.com (Postfix) with ESMTP id 125001AA15; Thu, 8 Jun 2023 12:31:07 +0530 (IST) Received: by inlubt0316.iind.intel.com (Postfix, from userid 12101951) id 0CDC51E1; Thu, 8 Jun 2023 12:31:07 +0530 (IST) From: Raag Jadav To: linus.walleij@linaro.org, mika.westerberg@linux.intel.com, andriy.shevchenko@linux.intel.com Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, mallikarjunappa.sangannavar@intel.com, pandith.n@intel.com, Raag Jadav Subject: [PATCH v1 2/4] pinctrl: intel: optimize irq_set_type hook Date: Thu, 8 Jun 2023 12:30:15 +0530 Message-Id: <20230608070017.28072-3-raag.jadav@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230608070017.28072-1-raag.jadav@intel.com> References: <20230608070017.28072-1-raag.jadav@intel.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768117577250163904?= X-GMAIL-MSGID: =?utf-8?q?1768117577250163904?= Utilize a temporary variable for common shift operation inside ->irq_set_type() hook and save a few bytes. While at it, simplify if-else-if chain. add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-16 (-16) Function old new delta intel_gpio_irq_type 317 301 -16 Total: Before=10469, After=10453, chg -0.15% Signed-off-by: Raag Jadav --- drivers/pinctrl/intel/pinctrl-intel.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index e8adf2580321..3f78066b1837 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -1128,8 +1128,8 @@ static int intel_gpio_irq_type(struct irq_data *d, unsigned int type) struct intel_pinctrl *pctrl = gpiochip_get_data(gc); unsigned int pin = intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), NULL, NULL); unsigned long flags; + u32 value, rxevcfg; void __iomem *reg; - u32 value; reg = intel_get_padcfg(pctrl, pin, PADCFG0); if (!reg) @@ -1150,23 +1150,24 @@ static int intel_gpio_irq_type(struct irq_data *d, unsigned int type) intel_gpio_set_gpio_mode(reg); value = readl(reg); - value &= ~(PADCFG0_RXEVCFG_MASK | PADCFG0_RXINV); if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) { - value |= PADCFG0_RXEVCFG_EDGE_BOTH << PADCFG0_RXEVCFG_SHIFT; + rxevcfg = PADCFG0_RXEVCFG_EDGE_BOTH; } else if (type & IRQ_TYPE_EDGE_FALLING) { - value |= PADCFG0_RXEVCFG_EDGE << PADCFG0_RXEVCFG_SHIFT; - value |= PADCFG0_RXINV; + rxevcfg = PADCFG0_RXEVCFG_EDGE; } else if (type & IRQ_TYPE_EDGE_RISING) { - value |= PADCFG0_RXEVCFG_EDGE << PADCFG0_RXEVCFG_SHIFT; + rxevcfg = PADCFG0_RXEVCFG_EDGE; } else if (type & IRQ_TYPE_LEVEL_MASK) { - if (type & IRQ_TYPE_LEVEL_LOW) - value |= PADCFG0_RXINV; + rxevcfg = PADCFG0_RXEVCFG_LEVEL; } else { - value |= PADCFG0_RXEVCFG_DISABLED << PADCFG0_RXEVCFG_SHIFT; + rxevcfg = PADCFG0_RXEVCFG_DISABLED; } + if (type == IRQ_TYPE_EDGE_FALLING || type == IRQ_TYPE_LEVEL_LOW) + value |= PADCFG0_RXINV; + + value |= rxevcfg << PADCFG0_RXEVCFG_SHIFT; writel(value, reg); if (type & IRQ_TYPE_EDGE_BOTH) From patchwork Thu Jun 8 07:00:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raag Jadav X-Patchwork-Id: 104843 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp95111vqr; Thu, 8 Jun 2023 00:12:02 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ564rOOC4oreUqXAkqP17fW8zl+WlHqfzAViasDhtwphO9xmw6z6eiQyasJxLinhB33xXo8 X-Received: by 2002:a05:6808:105:b0:399:b0ee:de1 with SMTP id b5-20020a056808010500b00399b0ee0de1mr4630966oie.49.1686208321919; Thu, 08 Jun 2023 00:12:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1686208321; cv=none; d=google.com; s=arc-20160816; b=WLPWS631bfOZH1WlSaBQk1SmyxWLtfFplGkV+u/4AtJZHgVFn6ToaXsQ3W6cNEhPI+ ht1KMHfheh62SDubL5iAlBsN7OaEAA+bkfeCsHfey2f+EJlcHoR2UPEU9PmDP7YvMHWG im8DRAwbhTSRUttgZS0LOr1kWgWFn8ZGFdWW28a95Pslg9MTwHNykDRtlRS4rnX6umVg 42l+B7Js6GNSLzF2IAoMr5/DPJdYHuVuiy3gzMeaOmkB43Kh/QxG9QHow96LgDAzH/tN fX82MOlYw7lCO/Y3+8wngyzoq4WeL6UrpepEgju8EX1wSCJ+kuzjNioJ5nVSA0y4bWV/ Zxzw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from:dkim-signature; bh=kF3XGcB/FfZQJp5zzspoU8NU85xMC/EPbrq7RMPt+hU=; b=jp75JV1Zi5FByOE5uKl7+9NSRnNiKuD/W2z786kmDQE0VbLMoQTy8Orny8VNEPrN/c CIlwJKKRqXJHMXbEpZf0+jI0uzfG4pLViieGzJYb+8cgkQR3AltRxcuFTcTaXoGHNCTk tVzS902FwSj1m4EYD1ofyOWvFBLbXx2SM1relNC8hySGaunbZxOEE1R3VXl8pAeV69EJ pAR7Kny/B7wo47PxqnFgJ2MJ+7cgiROI5xW+IOs8n8majdbtlBpJVDfq2zNqNsXc/1nq LV4KcquHUirmO7wVJtlvjNTwmwn/sHma5B/ucb8C8zZw+1EwUh0HsIccadojlJEAvtX+ ZLFA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=Ugz7mPKs; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (out1.vger.email. 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d="scan'208";a="709867968" Received: from inesxmail01.iind.intel.com ([10.223.154.20]) by orsmga002.jf.intel.com with ESMTP; 08 Jun 2023 00:01:07 -0700 Received: from inlubt0316.iind.intel.com (inlubt0316.iind.intel.com [10.191.20.213]) by inesxmail01.iind.intel.com (Postfix) with ESMTP id 1518A1AA18; Thu, 8 Jun 2023 12:31:07 +0530 (IST) Received: by inlubt0316.iind.intel.com (Postfix, from userid 12101951) id 11534176; Thu, 8 Jun 2023 12:31:07 +0530 (IST) From: Raag Jadav To: linus.walleij@linaro.org, mika.westerberg@linux.intel.com, andriy.shevchenko@linux.intel.com Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, mallikarjunappa.sangannavar@intel.com, pandith.n@intel.com, Raag Jadav Subject: [PATCH v1 3/4] pinctrl: intel: simplify exit path of set_mux hook Date: Thu, 8 Jun 2023 12:30:16 +0530 Message-Id: <20230608070017.28072-4-raag.jadav@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230608070017.28072-1-raag.jadav@intel.com> References: <20230608070017.28072-1-raag.jadav@intel.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768117577224098080?= X-GMAIL-MSGID: =?utf-8?q?1768117577224098080?= Simplify exit path of ->set_mux() hook and save a few bytes. add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-22 (-22) Function old new delta intel_pinmux_set_mux 242 220 -22 Total: Before=10453, After=10431, chg -0.21% Signed-off-by: Raag Jadav --- drivers/pinctrl/intel/pinctrl-intel.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 3f78066b1837..1b5745202058 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -393,7 +393,10 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); const struct intel_pingroup *grp = &pctrl->soc->groups[group]; unsigned long flags; - int i; + int i, ret; + + /* In case we never really enter any of the below loops */ + ret = 0; raw_spin_lock_irqsave(&pctrl->lock, flags); @@ -403,8 +406,8 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, */ for (i = 0; i < grp->grp.npins; i++) { if (!intel_pad_usable(pctrl, grp->grp.pins[i])) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return -EBUSY; + ret = -EBUSY; + goto out_unlock; } } @@ -427,9 +430,10 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, writel(value, padcfg0); } +out_unlock: raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return 0; + return ret; } static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input) From patchwork Thu Jun 8 07:00:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raag Jadav X-Patchwork-Id: 104839 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:994d:0:b0:3d9:f83d:47d9 with SMTP id k13csp92184vqr; 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d="scan'208";a="709867977" Received: from inesxmail01.iind.intel.com ([10.223.154.20]) by orsmga002.jf.intel.com with ESMTP; 08 Jun 2023 00:01:09 -0700 Received: from inlubt0316.iind.intel.com (inlubt0316.iind.intel.com [10.191.20.213]) by inesxmail01.iind.intel.com (Postfix) with ESMTP id 192481AA19; Thu, 8 Jun 2023 12:31:07 +0530 (IST) Received: by inlubt0316.iind.intel.com (Postfix, from userid 12101951) id 155F41DE; Thu, 8 Jun 2023 12:31:07 +0530 (IST) From: Raag Jadav To: linus.walleij@linaro.org, mika.westerberg@linux.intel.com, andriy.shevchenko@linux.intel.com Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, mallikarjunappa.sangannavar@intel.com, pandith.n@intel.com, Raag Jadav Subject: [PATCH v1 4/4] pinctrl: intel: simplify exit path of gpio_request_enable hook Date: Thu, 8 Jun 2023 12:30:17 +0530 Message-Id: <20230608070017.28072-5-raag.jadav@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230608070017.28072-1-raag.jadav@intel.com> References: <20230608070017.28072-1-raag.jadav@intel.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1768117183942767729?= X-GMAIL-MSGID: =?utf-8?q?1768117183942767729?= Simplify exit path of ->gpio_request_enable() hook and save a few bytes. add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-36 (-36) Function old new delta intel_gpio_request_enable 186 150 -36 Total: Before=10431, After=10395, chg -0.35% Signed-off-by: Raag Jadav --- drivers/pinctrl/intel/pinctrl-intel.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 1b5745202058..947797d87c93 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -489,20 +489,22 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev, struct intel_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); void __iomem *padcfg0; unsigned long flags; + int ret; padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0); + /* For positive cases */ + ret = 0; + raw_spin_lock_irqsave(&pctrl->lock, flags); if (!intel_pad_owned_by_host(pctrl, pin)) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return -EBUSY; + ret = -EBUSY; + goto out_unlock; } - if (!intel_pad_is_unlocked(pctrl, pin)) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return 0; - } + if (!intel_pad_is_unlocked(pctrl, pin)) + goto out_unlock; /* * If pin is already configured in GPIO mode, we assume that @@ -510,16 +512,15 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev, * potential glitches on the pin. Otherwise, for the pin in * alternative mode, consumer has to supply respective flags. */ - if (intel_gpio_get_gpio_mode(padcfg0) == PADCFG0_PMODE_GPIO) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return 0; - } + if (intel_gpio_get_gpio_mode(padcfg0) == PADCFG0_PMODE_GPIO) + goto out_unlock; intel_gpio_set_gpio_mode(padcfg0); +out_unlock: raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return 0; + return ret; } static int intel_gpio_set_direction(struct pinctrl_dev *pctldev,