From nobody Sun Feb 8 10:50:06 2026 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 F139EC7EE23 for ; Thu, 8 Jun 2023 07:02:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234342AbjFHHC0 (ORCPT ); Thu, 8 Jun 2023 03:02:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235156AbjFHHCD (ORCPT ); Thu, 8 Jun 2023 03:02:03 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBE931BD6; Thu, 8 Jun 2023 00:01:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686207710; x=1717743710; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=ef5s9TkcxXSlz6lTIJfajIVYzY4IV1HrFB/BqDVmIJA=; b=h5y+/OUJbTuPmHhSWwAORY3VTXo84225FNXdLYyTIXe42ZxNQwwHXyJD 5fZ4I8FTSmxVotSS2mdYMFBfJis9tMOMrEHkh2PcKhwQupPyZg6fd/H9f NBoAcEM1x6As1sCiowGRU+i+hf8kNL4L8D6Gz3X5u6D3SPKG8v/Lt9Ycs H2LnW8mZMVpZJf7xVr3G4L2bimpEIIHy0SV+nGSB7XwSSHu4+xWRF7uca soRWNr11VbtihbsjZGil371AJX5fqKZMVRC1Qvb4+zDwa3niPXVWVHMV+ 2XzOIgdXzHc9bp15WQzzjTuITA/mju9rS20ypoHOuJxLxLzcNH4Erc3iJ w==; X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="359696344" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="359696344" 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="709867969" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; 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> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=3D10472, After=3D10469, 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 *p= ctldev, /* Now enable the mux setting for each pin in the group */ for (i =3D 0; i < grp->grp.npins; i++) { void __iomem *padcfg0; - u32 value; + u32 value, pmode; =20 padcfg0 =3D intel_get_padcfg(pctrl, grp->grp.pins[i], PADCFG0); - value =3D readl(padcfg0); =20 + value =3D readl(padcfg0); value &=3D ~PADCFG0_PMODE_MASK; =20 if (grp->modes) - value |=3D grp->modes[i] << PADCFG0_PMODE_SHIFT; + pmode =3D grp->modes[i]; else - value |=3D grp->mode << PADCFG0_PMODE_SHIFT; + pmode =3D grp->mode; =20 + value |=3D pmode << PADCFG0_PMODE_SHIFT; writel(value, padcfg0); } =20 --=20 2.17.1 From nobody Sun Feb 8 10:50:06 2026 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 A5E8BC7EE23 for ; Thu, 8 Jun 2023 07:02:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234434AbjFHHCC (ORCPT ); Thu, 8 Jun 2023 03:02:02 -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 ); 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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> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=3D10469, After=3D10453, 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, un= signed int type) struct intel_pinctrl *pctrl =3D gpiochip_get_data(gc); unsigned int pin =3D intel_gpio_to_pin(pctrl, irqd_to_hwirq(d), NULL, NUL= L); unsigned long flags; + u32 value, rxevcfg; void __iomem *reg; - u32 value; =20 reg =3D 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); =20 value =3D readl(reg); - value &=3D ~(PADCFG0_RXEVCFG_MASK | PADCFG0_RXINV); =20 if ((type & IRQ_TYPE_EDGE_BOTH) =3D=3D IRQ_TYPE_EDGE_BOTH) { - value |=3D PADCFG0_RXEVCFG_EDGE_BOTH << PADCFG0_RXEVCFG_SHIFT; + rxevcfg =3D PADCFG0_RXEVCFG_EDGE_BOTH; } else if (type & IRQ_TYPE_EDGE_FALLING) { - value |=3D PADCFG0_RXEVCFG_EDGE << PADCFG0_RXEVCFG_SHIFT; - value |=3D PADCFG0_RXINV; + rxevcfg =3D PADCFG0_RXEVCFG_EDGE; } else if (type & IRQ_TYPE_EDGE_RISING) { - value |=3D PADCFG0_RXEVCFG_EDGE << PADCFG0_RXEVCFG_SHIFT; + rxevcfg =3D PADCFG0_RXEVCFG_EDGE; } else if (type & IRQ_TYPE_LEVEL_MASK) { - if (type & IRQ_TYPE_LEVEL_LOW) - value |=3D PADCFG0_RXINV; + rxevcfg =3D PADCFG0_RXEVCFG_LEVEL; } else { - value |=3D PADCFG0_RXEVCFG_DISABLED << PADCFG0_RXEVCFG_SHIFT; + rxevcfg =3D PADCFG0_RXEVCFG_DISABLED; } =20 + if (type =3D=3D IRQ_TYPE_EDGE_FALLING || type =3D=3D IRQ_TYPE_LEVEL_LOW) + value |=3D PADCFG0_RXINV; + + value |=3D rxevcfg << PADCFG0_RXEVCFG_SHIFT; writel(value, reg); =20 if (type & IRQ_TYPE_EDGE_BOTH) --=20 2.17.1 From nobody Sun Feb 8 10:50:06 2026 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 02DA5C7EE2E for ; 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X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="359696346" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="359696346" 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="709867968" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; 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> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=3D10453, After=3D10431, 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 *pc= tldev, struct intel_pinctrl *pctrl =3D pinctrl_dev_get_drvdata(pctldev); const struct intel_pingroup *grp =3D &pctrl->soc->groups[group]; unsigned long flags; - int i; + int i, ret; + + /* In case we never really enter any of the below loops */ + ret =3D 0; =20 raw_spin_lock_irqsave(&pctrl->lock, flags); =20 @@ -403,8 +406,8 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pct= ldev, */ for (i =3D 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 =3D -EBUSY; + goto out_unlock; } } =20 @@ -427,9 +430,10 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pc= tldev, writel(value, padcfg0); } =20 +out_unlock: raw_spin_unlock_irqrestore(&pctrl->lock, flags); =20 - return 0; + return ret; } =20 static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input) --=20 2.17.1 From nobody Sun Feb 8 10:50:06 2026 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 D90BCC7EE23 for ; Thu, 8 Jun 2023 07:02:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235270AbjFHHCX (ORCPT ); Thu, 8 Jun 2023 03:02:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42752 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235162AbjFHHCD (ORCPT ); Thu, 8 Jun 2023 03:02:03 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24D791FDA; Thu, 8 Jun 2023 00:01:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686207711; x=1717743711; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=GkOP7rNUwgMIthRmAlcjFR5s8EhHf8h9HpAjchfyKK8=; b=JEMzjN6F97ONk20TGmwatG4I9Fpg56gZwlccPS0QBLU/bvGXvpUIb9i+ FPlcU3LrUrR5WyPUp9E/9N2ibY/fxhnVD4/Apj0P1JcJdnLDjKqEwIT3Y ovEm9WgvbG7vtRJGyak4exb7VFuuPU3ETUiZQNWqwmeuQCdOaOXtLtBjX MUK5l+WKl/oKx1H/6wZA/RR/njwQm55M5vGuJ+XnyBqCD+F+wRQAHDFhU 6OnaUp3gMrYu+8wUYMAZTFyfY7JxJcpOKHDDDN84bqanU2PXjHrhWd5r1 2N9427x58zHnOhTRBJ6laiHMSHgSgiXIAotcyI5afKTP+BslPNrtlpfuD A==; X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="359696355" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="359696355" 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 00:01:10 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="709867977" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; 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> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=3D10431, After=3D10395, 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_d= ev *pctldev, struct intel_pinctrl *pctrl =3D pinctrl_dev_get_drvdata(pctldev); void __iomem *padcfg0; unsigned long flags; + int ret; =20 padcfg0 =3D intel_get_padcfg(pctrl, pin, PADCFG0); =20 + /* For positive cases */ + ret =3D 0; + raw_spin_lock_irqsave(&pctrl->lock, flags); =20 if (!intel_pad_owned_by_host(pctrl, pin)) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return -EBUSY; + ret =3D -EBUSY; + goto out_unlock; } =20 - 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; =20 /* * If pin is already configured in GPIO mode, we assume that @@ -510,16 +512,15 @@ static int intel_gpio_request_enable(struct pinctrl_d= ev *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) =3D=3D PADCFG0_PMODE_GPIO) { - raw_spin_unlock_irqrestore(&pctrl->lock, flags); - return 0; - } + if (intel_gpio_get_gpio_mode(padcfg0) =3D=3D PADCFG0_PMODE_GPIO) + goto out_unlock; =20 intel_gpio_set_gpio_mode(padcfg0); =20 +out_unlock: raw_spin_unlock_irqrestore(&pctrl->lock, flags); =20 - return 0; + return ret; } =20 static int intel_gpio_set_direction(struct pinctrl_dev *pctldev, --=20 2.17.1