From patchwork Wed Oct 25 20:23:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sunil V L X-Patchwork-Id: 738374 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 47C6E328DD for ; Wed, 25 Oct 2023 20:24:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="nNqvGjA6" Received: from mail-pf1-x42b.google.com (mail-pf1-x42b.google.com [IPv6:2607:f8b0:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23BE91A7 for ; Wed, 25 Oct 2023 13:24:38 -0700 (PDT) Received: by mail-pf1-x42b.google.com with SMTP id d2e1a72fcca58-6bd73395bceso116561b3a.0 for ; Wed, 25 Oct 2023 13:24:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1698265477; x=1698870277; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=J8S/JDCmwBJX/s4tcuif01AJjqTYAtUjVSzvHHCYv3Q=; b=nNqvGjA6QPmPkU0pIK+PisNTyVgj2VgA4U5e51WIi1UAtB68oOcDrAFNkopUNesM5k x5L/8RGmTh7GA0rwpMIDrGTAfFijRQogXgvaxhxfntL7XlcCcztZsFKcL45pLMhuRGcP HDaG3Z2kIzvvvvrPWQh+rvSak5AwjfkNG5+O6B6BLQxWc+MTHPvMxYWttNwgWppF25vJ glcd/sy1FvIwxr7bfe//85NgZBsIJ+qhTJAByTugflLc9l77og8LLV94aKgAb/i72lJx V4qVcEQj5eXnFn3BigSXcUMY7LN3Zr7E5hveMCoS84pk0QvbHq4XbsyfXz85Gezfp/m6 Tuvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698265477; x=1698870277; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=J8S/JDCmwBJX/s4tcuif01AJjqTYAtUjVSzvHHCYv3Q=; b=HzF9IcRT7vNFMP1Ta0tugjzXXd4NE0bScCx0k0nNC9jg9WFVRR8THV7rYllwDFbvc7 5LiWAqa/9KxcefD3r4X8hJQ1Lpee/dC/lV4pbaInLwRShVoAyGaGBvsAG3EjFUckWk7K Wcf4RJsXKlZDLUOa/d4jXvqoLHHlAdqFXib1cM6nQj7nTDWWr6EWZjcGseoKcpkoh4+i +Q4lb5gIK2gcc8p2nzvhjNcpyIbuOxxpmNEw5ZPzPg9F5YgOlvDv4pQYqmv+NfzxUvSZ IpVFigEmvRJLmET7x1yFun5wEtnkmeLPgktKIw52yV2z0PWI+tiD/YigOMjgioo9sdQk n/9Q== X-Gm-Message-State: AOJu0YwydxuLQKH/esqS/0v2I43qnliLdp6a4sX2QBYcHdT3nxqRmn2f rWjXN2ljuOh9pqo8yRluDok+Ug== X-Google-Smtp-Source: AGHT+IGn0Ntg16V2ATutjBKN8vUehxORe09c59/GsjNsvnPR9Qebb6VfuMhALgVB74e2gHGUr8GJNA== X-Received: by 2002:a05:6a00:1396:b0:68f:b015:ea99 with SMTP id t22-20020a056a00139600b0068fb015ea99mr913751pfg.10.1698265477463; Wed, 25 Oct 2023 13:24:37 -0700 (PDT) Received: from sunil-pc.Dlink ([106.51.188.78]) by smtp.gmail.com with ESMTPSA id y3-20020aa79423000000b006b84ed9371esm10079590pfo.177.2023.10.25.13.24.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Oct 2023 13:24:37 -0700 (PDT) From: Sunil V L To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-serial@vger.kernel.org Cc: Catalin Marinas , Will Deacon , Paul Walmsley , Palmer Dabbelt , Albert Ou , "Rafael J . Wysocki" , Len Brown , Bjorn Helgaas , Anup Patel , Thomas Gleixner , Greg Kroah-Hartman , Jiri Slaby , Conor Dooley , Andrew Jones , Atish Kumar Patra , Haibo Xu , Sunil V L Subject: [RFC PATCH v2 05/21] pnp.h: Return -EPROBE_DEFER for disabled IRQ resource in pnp_irq() Date: Thu, 26 Oct 2023 01:53:28 +0530 Message-Id: <20231025202344.581132-6-sunilvl@ventanamicro.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231025202344.581132-1-sunilvl@ventanamicro.com> References: <20231025202344.581132-1-sunilvl@ventanamicro.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Level: * To support deferred PNP driver probe, pnp_irq() must return -EPROBE_DEFER so that the device driver can do deferred probe if the interrupt controller is not probed early. Signed-off-by: Sunil V L --- include/linux/pnp.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/include/linux/pnp.h b/include/linux/pnp.h index c2a7cfbca713..21cf833789fb 100644 --- a/include/linux/pnp.h +++ b/include/linux/pnp.h @@ -147,12 +147,18 @@ static inline resource_size_t pnp_mem_len(struct pnp_dev *dev, } -static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar) +static inline int pnp_irq(struct pnp_dev *dev, unsigned int bar) { struct resource *res = pnp_get_resource(dev, IORESOURCE_IRQ, bar); - if (pnp_resource_valid(res)) + if (pnp_resource_valid(res)) { +#if IS_ENABLED(CONFIG_ARCH_ACPI_DEFERRED_GSI) + if (!pnp_resource_enabled(res)) + return -EPROBE_DEFER; +#endif + return res->start; + } return -1; }