From patchwork Tue May 23 15:12:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13252497 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 1D46DC77B75 for ; Tue, 23 May 2023 15:13:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237488AbjEWPNO (ORCPT ); Tue, 23 May 2023 11:13:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53336 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229609AbjEWPNE (ORCPT ); Tue, 23 May 2023 11:13:04 -0400 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A1981B1; Tue, 23 May 2023 08:12:51 -0700 (PDT) Received: (Authenticated sender: herve.codina@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 3D8ECC0008; Tue, 23 May 2023 15:12:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1684854770; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DrMZ95BLnGjcDr2P+qmpgq0WbufG1vHwF/RueaYJS28=; b=OJWTwCnlWn+Xthk0Xfek+s2r5juF2h7SNMSfs+CDSVW51lOc8n36dXjfmK4BGPJBYbTAPt 86JjRd4Mcrd49qLXHvDbArKC/E8hki2QuxdslB+MaEZqxwzDROqTu3G8Z0Oz5C6eQX+enW 1FEIgs2cKR0VhE8GLUYxb3DvhzjllrjjdzEjgxzsfnZWENwkRrwuSFZJ1V6owA63QJX4at E+lI4csyxxNOldCH4gEdjII1NaSjAe/tFPmI74ueGDSpFa0nTIg+UIMmKFywgHxEA6Z5du 0P+mF8ZkTdK3AP4vyWzvlgggQVXF+c6HB2D3ptw9OPIUQUqHT2gaJZ7N9lx2tQ== From: Herve Codina To: Herve Codina , Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Cameron , Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Kuninori Morimoto Cc: alsa-devel@alsa-project.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, Christophe Leroy , Thomas Petazzoni Subject: [PATCH v2 6/9] ASoC: soc-dapm.h: Add a helper to build a DAPM widget dynamically Date: Tue, 23 May 2023 17:12:20 +0200 Message-Id: <20230523151223.109551-7-herve.codina@bootlin.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230523151223.109551-1-herve.codina@bootlin.com> References: <20230523151223.109551-1-herve.codina@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The SND_SOC_DAPM_* helpers family are used to build widgets array in a static way. Introduce SND_SOC_DAPM_WIDGET() in order to use the SND_SOC_DAPM_* helpers family in a dynamic way. The different SND_SOC_DAPM_* parameters can be computed by the code and the widget can be built based on this parameter computation. For instance: static int create_widget(char *input_name) { struct snd_soc_dapm_widget widget; char name*; ... name = input_name; if (!name) name = "default"; widget = SND_SOC_DAPM_WIDGET(SND_SOC_DAPM_INPUT(name)); ... } Signed-off-by: Herve Codina --- include/sound/soc-dapm.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 87f8e1793af1..6b62fe5c779c 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -276,7 +276,17 @@ struct soc_enum; .reg = SND_SOC_NOPM, .event = dapm_pinctrl_event, \ .event_flags = SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD } - +/* + * Helper to create a widget 'dynamically' + * This can be used with any of the SND_SOC_DAPM_* widget helper. + * For instance: + * struct snd_soc_dapm_widget widget; + * ... + * widget = SND_SOC_DAPM_WIDGET(SND_SOC_DAPM_INPUT(input_name)); + */ +#define SND_SOC_DAPM_WIDGET(_widget)({ \ + struct snd_soc_dapm_widget _w[1] = { _widget }; \ + _w[0]; }) /* dapm kcontrol types */ #define SOC_DAPM_DOUBLE(xname, reg, lshift, rshift, max, invert) \