From patchwork Fri Oct 16 10:46:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratyush Yadav X-Patchwork-Id: 1383228 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=YhM50Zwn; dkim-atps=neutral Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4CCNC00tNCz9sTL for ; Fri, 16 Oct 2020 21:47:24 +1100 (AEDT) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id E795A823F3; Fri, 16 Oct 2020 12:46:51 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="YhM50Zwn"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id C49F9823B7; Fri, 16 Oct 2020 12:46:49 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.2 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id DD254822D2 for ; Fri, 16 Oct 2020 12:46:45 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=p.yadav@ti.com Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 09GAkiHE078279; Fri, 16 Oct 2020 05:46:44 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1602845204; bh=T6yatsXBBXm1RtzX+ibWMQfFYAXC0Nps/3iMZ/kfVqY=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=YhM50Zwnqfn1ThNi33k5sJlU3Tol+MmhIOxZ41gdd5LtS9h2yDsVxFNqLWNiIx3Ta 6TaurjCVWjphLceuW6d4pApWOwpC6SYz/5boA4lVueEAxCwfi5C0N3suJmIWUrImep 9k+gvCSWhIpzEevCXZ9CKL3KcqI6EsZrAWxzC9rM= Received: from DLEE109.ent.ti.com (dlee109.ent.ti.com [157.170.170.41]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 09GAki6c115229 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 16 Oct 2020 05:46:44 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Fri, 16 Oct 2020 05:46:43 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Fri, 16 Oct 2020 05:46:43 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 09GAkbSe016923; Fri, 16 Oct 2020 05:46:42 -0500 From: Pratyush Yadav To: Tom Rini CC: Pratyush Yadav , , Simon Glass , Vignesh Raghavendra Subject: [PATCH v4 2/7] dm: board: complete the initialization of the muxes in initr_dm() Date: Fri, 16 Oct 2020 16:16:31 +0530 Message-ID: <20201016104636.14138-3-p.yadav@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201016104636.14138-1-p.yadav@ti.com> References: <20201016104636.14138-1-p.yadav@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean From: Jean-Jacques Hiblot This will probe the multiplexer devices that have a "u-boot,mux-autoprobe" property. As a consequence they will be put in their idle state. Signed-off-by: Jean-Jacques Hiblot Reviewed-by: Simon Glass Signed-off-by: Pratyush Yadav --- Notes: No changes in v4. common/board_r.c | 12 ++++++++++++ drivers/mux/mux-uclass.c | 23 +++++++++++++++++++++++ include/mux.h | 12 ++++++++++++ 3 files changed, 47 insertions(+) diff --git a/common/board_r.c b/common/board_r.c index 9b2fec701a..b9217b2e27 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -46,6 +46,7 @@ #include #endif #include +#include #include #include #include @@ -341,6 +342,17 @@ static int initr_dm_devices(void) return ret; } + if (IS_ENABLED(CONFIG_MULTIPLEXER)) { + /* + * Initialize the multiplexer controls to their default state. + * This must be done early as other drivers may unknowingly + * rely on it. + */ + ret = dm_mux_init(); + if (ret) + return ret; + } + return 0; } diff --git a/drivers/mux/mux-uclass.c b/drivers/mux/mux-uclass.c index 3c89e0a389..3dad466101 100644 --- a/drivers/mux/mux-uclass.c +++ b/drivers/mux/mux-uclass.c @@ -303,6 +303,29 @@ static int mux_uclass_post_probe(struct udevice *dev) return 0; } +int dm_mux_init(void) +{ + struct uclass *uc; + struct udevice *dev; + int ret; + + ret = uclass_get(UCLASS_MUX, &uc); + if (ret < 0) { + log_debug("unable to get MUX uclass\n"); + return ret; + } + uclass_foreach_dev(dev, uc) { + if (dev_read_bool(dev, "u-boot,mux-autoprobe")) { + ret = device_probe(dev); + if (ret) + log_debug("unable to probe device %s\n", + dev->name); + } + } + + return 0; +} + UCLASS_DRIVER(mux) = { .id = UCLASS_MUX, .name = "mux", diff --git a/include/mux.h b/include/mux.h index 85eb7d42fc..23844f480a 100644 --- a/include/mux.h +++ b/include/mux.h @@ -109,6 +109,13 @@ void mux_control_put(struct mux_control *mux); */ struct mux_control *devm_mux_control_get(struct udevice *dev, const char *mux_name); +/** + * dm_mux_init() - Initialize the multiplexer controls to their default state. + * + * Return: 0 if OK, -errno otherwise. + */ +int dm_mux_init(void); + #else unsigned int mux_control_states(struct mux_control *mux) { @@ -142,6 +149,11 @@ struct mux_control *devm_mux_control_get(struct udevice *dev, { return NULL; } + +int dm_mux_init(void) +{ + return -ENOSYS; +} #endif #endif