From patchwork Wed May 11 18:32:08 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12846532 X-Patchwork-Delegate: geert@linux-m68k.org 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 6FA08C4167D for ; Wed, 11 May 2022 18:32:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346302AbiEKSck (ORCPT ); Wed, 11 May 2022 14:32:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346293AbiEKSci (ORCPT ); Wed, 11 May 2022 14:32:38 -0400 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9C24F3E0C1; Wed, 11 May 2022 11:32:37 -0700 (PDT) X-IronPort-AV: E=Sophos;i="5.91,217,1647270000"; d="scan'208";a="120669609" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 12 May 2022 03:32:37 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id B441340065C7; Thu, 12 May 2022 03:32:32 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Linus Walleij , Thomas Gleixner , Marc Zyngier , Rob Herring , Krzysztof Kozlowski , Bartosz Golaszewski , Philipp Zabel , linux-gpio@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, Phil Edworthy , Biju Das , Prabhakar , Lad Prabhakar Subject: [PATCH v3 3/5] gpio: gpiolib: Allow free() callback to be overridden Date: Wed, 11 May 2022 19:32:08 +0100 Message-Id: <20220511183210.5248-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220511183210.5248-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220511183210.5248-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Allow free() callback to be overridden from irq_domain_ops for hierarchical chips. This allows drivers to free any resources which are allocated during populate_parent_alloc_arg(). Signed-off-by: Lad Prabhakar Reviewed-by: Geert Uytterhoeven --- drivers/gpio/gpiolib.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index b7694171655c..d36c4a965efc 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -1187,15 +1187,18 @@ static void gpiochip_hierarchy_setup_domain_ops(struct irq_domain_ops *ops) ops->activate = gpiochip_irq_domain_activate; ops->deactivate = gpiochip_irq_domain_deactivate; ops->alloc = gpiochip_hierarchy_irq_domain_alloc; - ops->free = irq_domain_free_irqs_common; /* - * We only allow overriding the translate() function for + * We only allow overriding the translate() and free() functions for * hierarchical chips, and this should only be done if the user - * really need something other than 1:1 translation. + * really need something other than 1:1 translation for translate() + * callback and free if user wants to free up any resources which + * were allocated during callbacks, for example populate_parent_alloc_arg. */ if (!ops->translate) ops->translate = gpiochip_hierarchy_irq_domain_translate; + if (!ops->free) + ops->free = irq_domain_free_irqs_common; } static int gpiochip_hierarchy_add_domain(struct gpio_chip *gc)