From patchwork Wed Dec 2 11:39:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 336494 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=-17.0 required=3.0 tests=BAYES_00, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 16AC9C8301A for ; Wed, 2 Dec 2020 11:40:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF4DE2222A for ; Wed, 2 Dec 2020 11:40:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729660AbgLBLki (ORCPT ); Wed, 2 Dec 2020 06:40:38 -0500 Received: from mail-lj1-f195.google.com ([209.85.208.195]:40703 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727650AbgLBLke (ORCPT ); Wed, 2 Dec 2020 06:40:34 -0500 Received: by mail-lj1-f195.google.com with SMTP id y10so3201837ljc.7; Wed, 02 Dec 2020 03:40:17 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eioTLuh9qMD02dGo7kd70kPRax33tNEMYOnayXuoEQw=; b=JEsJTJ7HgMwoalHv+9t1mJQEvFR4miRs3ZN18+Nw6D6dtop7N9eADkj7H4yBmAUVKM x0beFwZF+eWhmPkM6F1SV46Xy6Yw0pRx743I2VdztlMYeyj5icGuDsnNUSSciwjvV+CU 6dxT1schanz48ryV1YZ+8hksR13hJcwLOp33tuAcLdgnuP7vfXeHOtgs1blVjKxpQmKT fL6NBKO15XO/TgcCLFuiZR7NS4MkCWkR6xYCwJ6aUotcogaZjMTN9smBMbpyBDqRHNUM 4sgDV/hPL6A9/C9OVaMyZFx53EeFz3sS+1AMjkeKuieKulck/aAVN2ucMwQBiyUgqDzn WdXA== X-Gm-Message-State: AOAM533bZtshmcVRQCqC9IEn4Li+og7BO2AMJgdaIV3zBcvxQ8FLZCjF DegyYPB8sXL4TxvCO/uOaW9FRbju0ApjAg== X-Google-Smtp-Source: ABdhPJz5D+PQ6DzPdL9r9JsL4vg/TaoTkfaha5it7UuZ/g1kY3PSanEghj7QtwQsdePnLdQX45iFlw== X-Received: by 2002:a05:651c:3cf:: with SMTP id f15mr980595ljp.118.1606909191641; Wed, 02 Dec 2020 03:39:51 -0800 (PST) Received: from xi.terra (c-beaee455.07-184-6d6c6d4.bbcust.telenor.se. [85.228.174.190]) by smtp.gmail.com with ESMTPSA id a11sm403184ljp.21.2020.12.02.03.39.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Dec 2020 03:39:49 -0800 (PST) Received: from johan by xi.terra with local (Exim 4.93.0.4) (envelope-from ) id 1kkQUd-00073D-52; Wed, 02 Dec 2020 12:40:19 +0100 From: Johan Hovold To: Greg Kroah-Hartman Cc: Jiri Slaby , "Mychaela N . Falconia" , linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH v2 6/7] USB: serial: ftdi_sio: pass port to quirk port_probe functions Date: Wed, 2 Dec 2020 12:39:41 +0100 Message-Id: <20201202113942.27024-7-johan@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201202113942.27024-1-johan@kernel.org> References: <20201202113942.27024-1-johan@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: "Mychaela N. Falconia" The original code passed only the pointer to the ftdi_private struct to quirk port_probe functions. However, some quirks may need to be applied conditionally only to some channels of a multichannel FT2232x or FT4232H device, and if a given quirk's port_probe function needs to figure out which channel of a multichannel device is currently being considered, it needs access to the port pointer passed to the ftdi_sio_port_probe() function, so it can traverse USB data structures from there. Signed-off-by: Mychaela N. Falconia Signed-off-by: Johan Hovold --- drivers/usb/serial/ftdi_sio.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index e0f4c3d9649c..b69032c9ec2b 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -88,15 +88,15 @@ struct ftdi_private { struct ftdi_sio_quirk { int (*probe)(struct usb_serial *); /* Special settings for probed ports. */ - void (*port_probe)(struct ftdi_private *); + void (*port_probe)(struct usb_serial_port *); }; static int ftdi_jtag_probe(struct usb_serial *serial); static int ftdi_NDI_device_setup(struct usb_serial *serial); static int ftdi_stmclite_probe(struct usb_serial *serial); static int ftdi_8u2232c_probe(struct usb_serial *serial); -static void ftdi_USB_UIRT_setup(struct ftdi_private *priv); -static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv); +static void ftdi_USB_UIRT_setup(struct usb_serial_port *port); +static void ftdi_HE_TIRA1_setup(struct usb_serial_port *port); static const struct ftdi_sio_quirk ftdi_jtag_quirk = { .probe = ftdi_jtag_probe, @@ -2252,11 +2252,11 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) mutex_init(&priv->cfg_lock); - if (quirk && quirk->port_probe) - quirk->port_probe(priv); - usb_set_serial_port_data(port, priv); + if (quirk && quirk->port_probe) + quirk->port_probe(port); + ftdi_determine_type(port); ftdi_set_max_packet_size(port); if (read_latency_timer(port) < 0) @@ -2277,8 +2277,10 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) /* Setup for the USB-UIRT device, which requires hardwired * baudrate (38400 gets mapped to 312500) */ /* Called from usbserial:serial_probe */ -static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) +static void ftdi_USB_UIRT_setup(struct usb_serial_port *port) { + struct ftdi_private *priv = usb_get_serial_port_data(port); + priv->flags |= ASYNC_SPD_CUST; priv->custom_divisor = 77; priv->force_baud = 38400; @@ -2287,8 +2289,10 @@ static void ftdi_USB_UIRT_setup(struct ftdi_private *priv) /* Setup for the HE-TIRA1 device, which requires hardwired * baudrate (38400 gets mapped to 100000) and RTS-CTS enabled. */ -static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv) +static void ftdi_HE_TIRA1_setup(struct usb_serial_port *port) { + struct ftdi_private *priv = usb_get_serial_port_data(port); + priv->flags |= ASYNC_SPD_CUST; priv->custom_divisor = 240; priv->force_baud = 38400;