From patchwork Mon Jul 24 05:07:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 124613 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:9010:0:b0:3e4:2afc:c1 with SMTP id l16csp1584429vqg; Sun, 23 Jul 2023 22:30:13 -0700 (PDT) X-Google-Smtp-Source: APBJJlGEGlS0LJIklkEGjsSpQh542WEaPuL0nSEZnasZkmem+I3//RdIYQOykus2bhpyNakpI06G X-Received: by 2002:a17:906:7a53:b0:98e:933:2909 with SMTP id i19-20020a1709067a5300b0098e09332909mr9238305ejo.22.1690176613081; Sun, 23 Jul 2023 22:30:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690176613; cv=none; d=google.com; s=arc-20160816; b=DOXq9XA+ozG+OkrV3fgjpHWEA/PYrnlKM7BngbIgkZRWVMNmjh3gYtwZ9x8TTvj61q Jj2KZolMUPKW7vwtRD11XjsfDjmqawriwjbV74F7YhVzdKKpblNDjCUnH/Z1VGEN049T IfDS5MOM7SvhDXBufjGUzoa7Pe41knmWlzha8vxEtAhmO4usJgVWwkmNwLpODUepPqHA ncanzuhbY910P9l5OH4w8BZArSKSGFw2NGDncOEmpgTZAuWUV/l+M6nuTiwK0iGuGXGi GWgCO1r9VBsaRhIqzvuI/UG5ZWBwwPlOb85gwTjujdVwvwcMWxTWr+hPpp9Cc3+V5Akz 1PTQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=qmKOeb0tqGbglZ/dIwvd9feOyoaUicASY5+75z1jIiw=; fh=wxWR7S7XHVlqVIuoke4G1/IBIqVMAhyap/qryV8BrCQ=; b=N+y+xi8954OMvEnEIO1qycF27L0D6YCC3En6D2aYMYwlO7nuYf0kddaA1mtRKf1vOl BOe57hBY/DMeYKGmsuTOPhyyJUrGMXD8DKid2hL+vZFkW+QdAW6aqVoz60cmjdncF7Yg Uk8hLDNo9zH3B47wcMHid//OczLyCD8C1zy4u9PxcMOKUnezX3KRvGxnQVI4+OWR3Bxd h+Tpa+pCynu2BPlDljZrIYCT8r042i28n6+e8rXP48r+lIg5Gj3FNP5qSyiNnh82+pfJ ZpYlBiI3E0uxnQIAc+MxcgGjkOVnDDSUjvOOso4gYLx4LUnxYsuiIL+xfBMbK265ETQ9 5dhA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id e15-20020a170906248f00b0099317a3240esi5565790ejb.396.2023.07.23.22.29.49; Sun, 23 Jul 2023 22:30:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229971AbjGXFID (ORCPT + 99 others); Mon, 24 Jul 2023 01:08:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229717AbjGXFHj (ORCPT ); Mon, 24 Jul 2023 01:07:39 -0400 Received: from muru.com (muru.com [72.249.23.125]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BC85CE59; Sun, 23 Jul 2023 22:07:34 -0700 (PDT) Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 3BE3982CF; Mon, 24 Jul 2023 05:07:32 +0000 (UTC) From: Tony Lindgren To: Greg Kroah-Hartman , Jiri Slaby , Andy Shevchenko Cc: Andy Shevchenko , Dhruva Gole , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , John Ogness , Johan Hovold , Sebastian Andrzej Siewior , Vignesh Raghavendra , linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org Subject: [PATCH v4 3/3] serial: core: Fix serial core controller port name to show controller id Date: Mon, 24 Jul 2023 08:07:05 +0300 Message-ID: <20230724050709.17544-4-tony@atomide.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230724050709.17544-1-tony@atomide.com> References: <20230724050709.17544-1-tony@atomide.com> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772278632425364798 X-GMAIL-MSGID: 1772278632425364798 We are missing the serial core controller id for the serial core port name. Let's fix the issue for sane /sys/bus/serial-core/devices, and to avoid issues addressing serial ports later on. Fixes: 84a9582fd203 ("serial: core: Start managing serial controllers to enable runtime PM") Reported-by: Andy Shevchenko Andy Shevchenko Signed-off-by: Tony Lindgren --- drivers/tty/serial/serial_base_bus.c | 34 ++++++++++++++++++---------- 1 file changed, 22 insertions(+), 12 deletions(-) diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c --- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -19,6 +19,14 @@ static bool serial_base_initialized; +static const struct device_type serial_ctrl_type = { + .name = "ctrl", +}; + +static const struct device_type serial_port_type = { + .name = "port", +}; + static int serial_base_match(struct device *dev, struct device_driver *drv) { int len = strlen(drv->name); @@ -48,7 +56,8 @@ static int serial_base_device_init(struct uart_port *port, struct device *parent_dev, const struct device_type *type, void (*release)(struct device *dev), - int id) + unsigned int ctrl_id, + unsigned int port_id) { device_initialize(dev); dev->type = type; @@ -61,12 +70,17 @@ static int serial_base_device_init(struct uart_port *port, return -EPROBE_DEFER; } - return dev_set_name(dev, "%s.%s.%d", type->name, dev_name(port->dev), id); -} + if (type == &serial_ctrl_type) + return dev_set_name(dev, "%s.%s.%d", type->name, + dev_name(port->dev), ctrl_id); -static const struct device_type serial_ctrl_type = { - .name = "ctrl", -}; + if (type == &serial_port_type) + return dev_set_name(dev, "%s.%s.%d.%d", type->name, + dev_name(port->dev), ctrl_id, + port_id); + + return -EINVAL; +} static void serial_base_ctrl_release(struct device *dev) { @@ -96,7 +110,7 @@ struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port, err = serial_base_device_init(port, &ctrl_dev->dev, parent, &serial_ctrl_type, serial_base_ctrl_release, - port->ctrl_id); + port->ctrl_id, 0); if (err) goto err_put_device; @@ -112,10 +126,6 @@ struct serial_ctrl_device *serial_base_ctrl_add(struct uart_port *port, return ERR_PTR(err); } -static const struct device_type serial_port_type = { - .name = "port", -}; - static void serial_base_port_release(struct device *dev) { struct serial_port_device *port_dev = to_serial_base_port_device(dev); @@ -136,7 +146,7 @@ struct serial_port_device *serial_base_port_add(struct uart_port *port, err = serial_base_device_init(port, &port_dev->dev, &ctrl_dev->dev, &serial_port_type, serial_base_port_release, - port->port_id); + port->ctrl_id, port->port_id); if (err) goto err_put_device;