From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AED69C282DD for ; Wed, 22 May 2019 15:29:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8549B208C3 for ; Wed, 22 May 2019 15:29:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="jSsr6s7j" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729865AbfEVP3m (ORCPT ); Wed, 22 May 2019 11:29:42 -0400 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:16926 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729758AbfEVP3l (ORCPT ); Wed, 22 May 2019 11:29:41 -0400 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4MFQqg9026162; Wed, 22 May 2019 17:29:32 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=JrVfzO8I0FUdBcA3/JLpbsGbKJMCTTSle83Drqd40I0=; b=jSsr6s7jVaQbMt8kPO4pRmSUhH/+HT6oOwLe/dK8+tiiVoABSwi84tfdkDxRodCa/Imi Pfvf2epLhjBGK2VXZ30vNPpFux7ljEFUk7VdwmbHAPHGEKNm5ePQuDhhK5foqa0BTQDl 0wmF8YO3QfllpXpTtlEvhaYn/WoTjUIPeYdgfNcwmDoi+JuRjPBT0xX80omOT8dT6T3R 1kham35TZYpJACb7syn/erZH799wOpLhl6wi6DEwWy6rV5A3/a3mVMEOEJA7kQrnY9Zj xWymIlL6UZCdXiufj7KytYk0TvEaekYjMaTSkc9AvQ0UHvEHUEJuns78NIBddNt4vUcS jg== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2sj7tu979k-1 (version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 22 May 2019 17:29:31 +0200 Received: from zeta.dmz-eu.st.com (zeta.dmz-eu.st.com [164.129.230.9]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 3AF0A3F; Wed, 22 May 2019 15:29:30 +0000 (GMT) Received: from Webmail-eu.st.com (Safex1hubcas23.st.com [10.75.90.46]) by zeta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 019DB2CD7; Wed, 22 May 2019 15:29:29 +0000 (GMT) Received: from SAFEX1HUBCAS22.st.com (10.75.90.93) by SAFEX1HUBCAS23.st.com (10.75.90.46) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 22 May 2019 17:29:30 +0200 Received: from localhost (10.201.20.122) by Webmail-ga.st.com (10.75.90.48) with Microsoft SMTP Server (TLS) id 14.3.439.0; Wed, 22 May 2019 17:29:29 +0200 From: Benjamin Gaignard To: , , CC: , , , , , Benjamin Gaignard Subject: [PATCH 1/2] pinctrl: Allow to create link between controller and consumer Date: Wed, 22 May 2019 17:29:24 +0200 Message-ID: <20190522152925.12419-2-benjamin.gaignard@st.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20190522152925.12419-1-benjamin.gaignard@st.com> References: <20190522152925.12419-1-benjamin.gaignard@st.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.201.20.122] X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-22_08:,, signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Pin controller may want to create a link between itself and its clients to be sure of suspend/resume call ordering. Introduce create_link field in pinctrl_desc structure to let pinctrl core knows that controller expect to create a link. Signed-off-by: Benjamin Gaignard --- drivers/pinctrl/core.c | 11 +++++++++++ include/linux/pinctrl/pinctrl.h | 2 ++ 2 files changed, 13 insertions(+) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index c6ff4d5fa482..40b647f3dc7d 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1216,6 +1216,15 @@ struct pinctrl_state *pinctrl_lookup_state(struct pinctrl *p, } EXPORT_SYMBOL_GPL(pinctrl_lookup_state); +static void pinctrl_link_add(struct pinctrl_dev *pctldev, + struct device *consumer) +{ + if (pctldev->desc->create_link) + device_link_add(consumer, pctldev->dev, + DL_FLAG_PM_RUNTIME | + DL_FLAG_AUTOREMOVE_CONSUMER); +} + /** * pinctrl_commit_state() - select/activate/program a pinctrl state to HW * @p: the pinctrl handle for the device that requests configuration @@ -1261,6 +1270,8 @@ static int pinctrl_commit_state(struct pinctrl *p, struct pinctrl_state *state) if (ret < 0) { goto unapply_new_state; } + + pinctrl_link_add(setting->pctldev, p->dev); } p->state = state; diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h index 8f5dbb84547a..11a42ccf4b0a 100644 --- a/include/linux/pinctrl/pinctrl.h +++ b/include/linux/pinctrl/pinctrl.h @@ -125,6 +125,7 @@ struct pinctrl_ops { * the hardware description * @custom_conf_items: Information how to print @params in debugfs, must be * the same size as the @custom_params, i.e. @num_custom_params + * @create_link: If true create a link between pinctrl and it consumer */ struct pinctrl_desc { const char *name; @@ -139,6 +140,7 @@ struct pinctrl_desc { const struct pinconf_generic_params *custom_params; const struct pin_config_item *custom_conf_items; #endif + bool create_link; }; /* External interface to pin controller */ -- 2.15.0