From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f54.google.com (mail-ed1-f54.google.com [209.85.208.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9C9E212D74F for ; Thu, 28 Mar 2024 15:37:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640278; cv=none; b=bOlBztbHPTJJQmizFGuEKdnFlXg1t+GGeas7jSNinrflZP/yphbLhTCXag9tACXy0jOoFPXtn+FSkf9K1CKTKrAVWMrpqXNNS23hE1nXqMc83tTbPVzg7ojIBl3oFAmRkiJqxjZZLR68Wu+OGRvtQGh3XSQTDYXLlAX3yf2UWcE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711640278; c=relaxed/simple; bh=wrtkQUXt72sLMQI+K0oHfWPeA0OqB1bI7JA2SlyFaXA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qeR5nro8HKJAV52Q6wcnmYgUGpSL6qdDerF/0mKGUKPKcCG5l98irxmauvXQ1+s++1F5WfZyHvx8j/vSvu+Bf2lJ709LQNLRyJ6BNf9jUjnEBBUyQExfy7gjWhzWvNE7R0kJ8LC+WPP8Ly8MNbjfGbK8vFWYrbeFwG+bll2IZBk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org; spf=pass smtp.mailfrom=linaro.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b=EUAIhv8w; arc=none smtp.client-ip=209.85.208.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="EUAIhv8w" Received: by mail-ed1-f54.google.com with SMTP id 4fb4d7f45d1cf-56c2c41cbdaso636941a12.2 for ; Thu, 28 Mar 2024 08:37:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1711640275; x=1712245075; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=ANzWgKm0bntWute8nMO1hl60enZ7+Hd5zAXwL8KZonU=; b=EUAIhv8wi6vqaNsIpJKsRVX0YCCAprRuY807v96tt0MKRjxxP36FNyaUBnBdIHIuZB ng3yCil6scZmaQ6NWqkwJLnpcAYGma/JqJUPCoATRh/nV/vQZQr0E6ppW05/Bg9TfBap yb+LdcfZzdivgeZIacOhZ7+hLExha7Glr0uQzmj5kRpZUpTMkiNOsY8z4o2JB/YB6H8T f2/Fxvp5AwgVaFFUusGpcTqBOoeKIc8mmzSMrEu7DE0X/6HgDgrZ/ioPtkFWfrruUhS0 aRHzPVqGiNXcSbYzyqv394lU/PM8qItkyHBrshGr7mLkWHKTdsheFww+iQoRCIrAiExn QujA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711640275; x=1712245075; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=ANzWgKm0bntWute8nMO1hl60enZ7+Hd5zAXwL8KZonU=; b=vyh1fn93gFyzxm/3dUu3cslkjcYKitCOldjFJUK3+BBSZ2Oq9zbCwyw27DyuLFU7fX /a0wPMZIQ8yBJfPltyQR6FTzJ7HfjCXnhMJgYxjItRUjLHgYJ2dlHVLqRlPAs9f6sE2N z7TMHBvcFZIdZZORScq8zH8jXYVIfvNJzN878u+ZHItf/lDKMxgLiBNx2TIBBxLS7Pvz RZT0N+9Y5JaXTkyexTcXayS7/HjyD1gblPYkpEIYw6WBJUA0LaGvPdlmSuIWGqJ/gROE J83tC9nsJBzY5cpTC8V8MeLBSRNuk6Oq0QnKutRcb3jm6nJCFI3zX8z9H2SY6vWzs7Wo z8Pg== X-Forwarded-Encrypted: i=1; AJvYcCWCFkv0ETK4zkJRiZ5hZVjmyH81vPLiHZt1707DtSWS2MpmhLbSI5r1JdTqvVsg0Js0z2ix+uhdUZ7Mu2VlUBns9SYPE6GuKZ4B7g== X-Gm-Message-State: AOJu0Yw3ztaOxwOUUGQUkCd04mfyzqjzU8UBEzup0xAi8xLVRYH7+E4X X/b6w1wbU46K1EMLlFKUXE1/VZ5Y4FfXS6woDb8V8vOiO5Nco2GkH7mjW7EEQd8= X-Google-Smtp-Source: AGHT+IEd1tJMNzmMnWP8OVhZsGW9fLDR48HTGQ59gEJ78HKyA7dTvTQO+FhPNz5oIiDw6YXW4+Dtkw== X-Received: by 2002:a50:9e64:0:b0:56b:8dcd:acb5 with SMTP id z91-20020a509e64000000b0056b8dcdacb5mr3410611ede.39.1711640274848; Thu, 28 Mar 2024 08:37:54 -0700 (PDT) Received: from localhost ([102.222.70.76]) by smtp.gmail.com with ESMTPSA id x1-20020a056402414100b00568d7b0a21csm947633eda.61.2024.03.28.08.37.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Mar 2024 08:37:54 -0700 (PDT) Date: Thu, 28 Mar 2024 18:37:49 +0300 From: Dan Carpenter To: Charles Keepax Cc: broonie@kernel.org, linus.walleij@linaro.org, brgl@bgdev.pl, linux-gpio@vger.kernel.org, linux-spi@vger.kernel.org, patches@opensource.cirrus.com Subject: Re: [PATCH v2 3/3] spi: cs42l43: Add bridged cs35l56 amplifiers Message-ID: <1123a418-c3c4-4f2b-b957-3737f3837b41@moroto.mountain> References: <20240328140119.1784350-1-ckeepax@opensource.cirrus.com> <20240328140119.1784350-4-ckeepax@opensource.cirrus.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240328140119.1784350-4-ckeepax@opensource.cirrus.com> On Thu, Mar 28, 2024 at 02:01:19PM +0000, Charles Keepax wrote: > +static bool cs42l43_has_sidecar(struct fwnode_handle *fwnode) > +{ > + static const int func_smart_amp = 0x1; > + struct fwnode_handle *child_fwnode, *ext_fwnode; > + unsigned long long function; > + unsigned int val; > + int ret; > + > + if (!is_acpi_node(fwnode)) > + return false; > + > + fwnode_for_each_child_node(fwnode, child_fwnode) { > + struct acpi_device *adev = to_acpi_device_node(child_fwnode); > + > + ret = acpi_evaluate_integer(adev->handle, "_ADR", NULL, &function); > + if (ACPI_FAILURE(ret)) > + continue; > + > + if (function != func_smart_amp) > + continue; > + > + ext_fwnode = fwnode_get_named_child_node(child_fwnode, > + "mipi-sdca-function-expansion-subproperties"); > + if (!ext_fwnode) > + continue; > + > + ret = fwnode_property_read_u32(ext_fwnode, > + "01fa-cirrus-sidecar-instances", > + &val); > + if (ret) > + continue; > + > + return !!val; This should call fwnode_handle_put(child_fwnode) before returning. An alternative fix would be to use the new device_for_each_child_node_scoped() macro. regards, dan carpenter > + } > + > + return false; > +}