From patchwork Tue May 23 15:12:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13252500 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 ADB01C7EE2E for ; Tue, 23 May 2023 15:13:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237522AbjEWPNY (ORCPT ); Tue, 23 May 2023 11:13:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237492AbjEWPNP (ORCPT ); Tue, 23 May 2023 11:13:15 -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 069CDE58; Tue, 23 May 2023 08:12:57 -0700 (PDT) Received: (Authenticated sender: herve.codina@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id A8BFCC0002; Tue, 23 May 2023 15:12:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1684854776; 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=rIgj9hYW8BvuR/TDsfHXr8sG/1TWuLwG/JP4/jjJtyQ=; b=IZBvW7ufNfmBKRdFYU2zKdQY3poFbD6ku8VIEy0wSJzRFfUMQ0lvdQcbQgs2nS17SfIzAJ tLUjKVqr/RSK7nBgjE3CoOTiMCIp0G/fRadFVnuY0keir3Y0Zu9X3iHCw/YGNgrnIad82L Eqx7GWI1MMPrNJMmDBI/VGXLaDqO6NWhIpdOJsFyMSEZ4+GmP+nUdTb9p+/bWwEBhDC9sG Ym5KhIssszuqIewM+VlX8ZKrLKhStOhiN6uZQfi4yIfw7GzyClaK76oKoB/XSHOO77k4jk HPX5OOXyOts4LDfxRTS1ssBs0dqdxpb0dYgCQz9/mueuDAEHgZRj9BZ4vHYvow== 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 9/9] ASoC: simple-card: Handle additional devices Date: Tue, 23 May 2023 17:12:23 +0200 Message-Id: <20230523151223.109551-10-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 An additional-devs subnode can be present in the simple-card top node. This subnode is used to declared some "virtual" additional devices. Create related devices from this subnode and avoid this subnode presence to interfere with the already supported subnodes analysis. Signed-off-by: Herve Codina --- sound/soc/generic/simple-card.c | 52 +++++++++++++++++++++++++++++++-- 1 file changed, 50 insertions(+), 2 deletions(-) diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 5a5e4ecd0f61..4992ab433d6a 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -348,6 +348,7 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv, struct device *dev = simple_priv_to_dev(priv); struct device_node *top = dev->of_node; struct device_node *node; + struct device_node *add_devs; uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev); bool is_top = 0; int ret = 0; @@ -359,6 +360,8 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv, is_top = 1; } + add_devs = of_get_child_by_name(top, PREFIX "additional-devs"); + /* loop for all dai-link */ do { struct asoc_simple_data adata; @@ -367,6 +370,12 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv, struct device_node *np; int num = of_get_child_count(node); + /* Skip additional-devs node */ + if (node == add_devs) { + node = of_get_next_child(top, node); + continue; + } + /* get codec */ codec = of_get_child_by_name(node, is_top ? PREFIX "codec" : "codec"); @@ -380,12 +389,15 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv, /* get convert-xxx property */ memset(&adata, 0, sizeof(adata)); - for_each_child_of_node(node, np) + for_each_child_of_node(node, np) { + if (np == add_devs) + continue; simple_parse_convert(dev, np, &adata); + } /* loop for all CPU/Codec node */ for_each_child_of_node(node, np) { - if (plat == np) + if (plat == np || add_devs == np) continue; /* * It is DPCM @@ -428,6 +440,7 @@ static int __simple_for_each_link(struct asoc_simple_priv *priv, } while (!is_top && node); error: + of_node_put(add_devs); of_node_put(node); return ret; } @@ -652,6 +665,36 @@ static int simple_soc_probe(struct snd_soc_card *card) return 0; } +static void simple_populate_aux_release(struct device *dev, void *res) +{ + of_platform_depopulate(*(struct device **)res); +} + +static int simple_populate_aux(struct asoc_simple_priv *priv) +{ + struct device *dev = simple_priv_to_dev(priv); + struct device_node *node; + struct device **ptr; + int ret; + + node = of_get_child_by_name(dev->of_node, PREFIX "additional-devs"); + if (!node) + return 0; + + ptr = devres_alloc(simple_populate_aux_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = of_platform_populate(node, NULL, NULL, dev); + if (ret) { + devres_free(ptr); + } else { + *ptr = dev; + devres_add(dev, ptr); + } + return ret; +} + static int asoc_simple_probe(struct platform_device *pdev) { struct asoc_simple_priv *priv; @@ -688,6 +731,11 @@ static int asoc_simple_probe(struct platform_device *pdev) return ret; if (np && of_device_is_available(np)) { + ret = simple_populate_aux(priv); + if (ret < 0) { + dev_err_probe(dev, ret, "populate aux error\n"); + goto err; + } ret = simple_parse_of(priv, li); if (ret < 0) {