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=-10.1 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,URIBL_BLOCKED,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 00F65C433DF for ; Fri, 26 Jun 2020 13:05:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A9A7120836 for ; Fri, 26 Jun 2020 13:05:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="lnCjdUGV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728245AbgFZNFs (ORCPT ); Fri, 26 Jun 2020 09:05:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727838AbgFZNFe (ORCPT ); Fri, 26 Jun 2020 09:05:34 -0400 Received: from mail-wr1-x442.google.com (mail-wr1-x442.google.com [IPv6:2a00:1450:4864:20::442]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE839C08C5DC for ; Fri, 26 Jun 2020 06:05:33 -0700 (PDT) Received: by mail-wr1-x442.google.com with SMTP id o11so9428581wrv.9 for ; Fri, 26 Jun 2020 06:05:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=2h3Gz11K9lz1GWwD6l+glaQop1qQtS3m0z/WOqzfDhk=; b=lnCjdUGVWFd64dqs1Pxf1ilLYbrTGBJ6/SubvmW15xt/YFyLhtakePLjr0ysjDZJ6+ Njj3gSu/JxXkPOFptelL0qEKUuoyL8RLE5TCr7RJrTM8ayJwJIS6Z0ZLv3QGViB/kQo4 c793ZcLpZEnEEy7QerSJvgMa4N6IYxLOv6670a6u5FR8TR/3nNB+bMe37MjoXrORCZR5 +kQnpkWYNOVBcLbsLVYz6AqJpI7Rmt8Vd+yyDJtfcoTnE/WnEspWMCBQL9FipWxeO582 g36+a9+dT2iRl63/Tf+eR3ANQ7A9y30+4Q7N3e0WxvogO7OZ/oqDH24MMYLZYFz1A3p8 Y+Nw== 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=2h3Gz11K9lz1GWwD6l+glaQop1qQtS3m0z/WOqzfDhk=; b=ibRrJLXCwhrGKXGssmEUD8KiaHbBa3MvhFD6wVdDFcrseacbxtwlx3n0BMN03ywTBG VnV330lf9Izd8ee7Lh5q8NhNer6dsyr4xwuEKFWWZc5sluk12RQ3r5BEVcZGMrEMJ4nc +FVGK0vXqKQtNX2sOrl/BMAbZDqVr4x9vUrdi+jFHnG4095nSEBj5qJZd2CB3feMHR2b 8G9anR7J8npiOExLf1AGM344rFCZ6d48OTZPEOmnZR4u1ngtM5AIg3l5od9JD4ZOqxhd DNUkvtcCX82QbY2uTLTx7i/jzD0IswtUJaSraSAzLmKbP4zKJ1dnZqho5PwYElL/kX9F CzUw== X-Gm-Message-State: AOAM5318uxZoqKWLtJOu2TxEjxf2MHZ58hfx/yUMcife7cNpNLeZe3BK REBfDZsN1zXloRXlJCNoVG8CgA== X-Google-Smtp-Source: ABdhPJxK+YkmbDwzyiNATXYFOhK+8lW4MBKB9U+eFI0+bnZxV5GzvY/YoYYTr1RXZgYTUlzXxu0XIQ== X-Received: by 2002:adf:b312:: with SMTP id j18mr3472991wrd.195.1593176732336; Fri, 26 Jun 2020 06:05:32 -0700 (PDT) Received: from localhost.localdomain ([2.27.35.144]) by smtp.gmail.com with ESMTPSA id u20sm16746904wmc.44.2020.06.26.06.05.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Jun 2020 06:05:31 -0700 (PDT) From: Lee Jones To: arnd@arndb.de, gregkh@linuxfoundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Lee Jones , Pavan Savoy Subject: [PATCH 03/10] misc: ti-st: st_kim: Tidy-up bespoke commentry Date: Fri, 26 Jun 2020 14:05:18 +0100 Message-Id: <20200626130525.389469-4-lee.jones@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200626130525.389469-1-lee.jones@linaro.org> References: <20200626130525.389469-1-lee.jones@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If it's still in use and worth the effort, it sure looks like this driver could do with a good scrub (clean). This patch conserns itself with the non-standard comments located thoughout the file. It also fixes the following W=1 warnings by demoting the kerneldoc function headers to standard comments, since there doesn't appear to be a requirement for the function args to be documented: /drivers/misc/ti-st/st_kim.c:42: warning: Function parameter or member 'id' not described in 'st_get_plat_device' /drivers/misc/ti-st/st_kim.c:53: warning: Function parameter or member 'kim_gdata' not described in 'validate_firmware_response' /drivers/misc/ti-st/st_kim.c:126: warning: Function parameter or member 'kim_gdata' not described in 'kim_int_recv' /drivers/misc/ti-st/st_kim.c:126: warning: Function parameter or member 'data' not described in 'kim_int_recv' /drivers/misc/ti-st/st_kim.c:126: warning: Function parameter or member 'count' not described in 'kim_int_recv' /drivers/misc/ti-st/st_kim.c:272: warning: Function parameter or member 'kim_gdata' not described in 'download_firmware' /drivers/misc/ti-st/st_kim.c:445: warning: Function parameter or member 'kim_data' not described in 'st_kim_start' /drivers/misc/ti-st/st_kim.c:509: warning: Function parameter or member 'kim_data' not described in 'st_kim_stop' /drivers/misc/ti-st/st_kim.c:661: warning: Function parameter or member 'core_data' not described in 'st_kim_ref' /drivers/misc/ti-st/st_kim.c:661: warning: Function parameter or member 'id' not described in 'st_kim_ref' Cc: Pavan Savoy Signed-off-by: Lee Jones --- drivers/misc/ti-st/st_kim.c | 71 +++++++++++++++++++++++-------------- 1 file changed, 44 insertions(+), 27 deletions(-) diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c index a36ed1ff5967f..f2f6cab97c086 100644 --- a/drivers/misc/ti-st/st_kim.c +++ b/drivers/misc/ti-st/st_kim.c @@ -30,7 +30,7 @@ static struct platform_device *st_kim_devices[MAX_ST_DEVICES]; /**********************************************************************/ /* internal functions */ -/** +/* * st_get_plat_device - * function which returns the reference to the platform device * requested by id. As of now only 1 such device exists (id=0) @@ -43,7 +43,7 @@ static struct platform_device *st_get_plat_device(int id) return st_kim_devices[id]; } -/** +/* * validate_firmware_response - * function to return whether the firmware response was proper * in case of error don't complete so that waiting for proper @@ -55,7 +55,8 @@ static void validate_firmware_response(struct kim_data_s *kim_gdata) if (!skb) return; - /* these magic numbers are the position in the response buffer which + /* + * these magic numbers are the position in the response buffer which * allows us to distinguish whether the response is for the read * version info. command */ @@ -79,7 +80,8 @@ static void validate_firmware_response(struct kim_data_s *kim_gdata) kfree_skb(skb); } -/* check for data len received inside kim_int_recv +/* + * check for data len received inside kim_int_recv * most often hit the last case to update state to waiting for data */ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len) @@ -91,14 +93,16 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len) if (!len) { validate_firmware_response(kim_gdata); } else if (len > room) { - /* Received packet's payload length is larger. + /* + * Received packet's payload length is larger. * We can't accommodate it in created skb. */ pr_err("Data length is too large len %d room %d", len, room); kfree_skb(kim_gdata->rx_skb); } else { - /* Packet header has non-zero payload length and + /* + * Packet header has non-zero payload length and * we have enough space in created skb. Lets read * payload data */ kim_gdata->rx_state = ST_W4_DATA; @@ -106,8 +110,10 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len) return len; } - /* Change ST LL state to continue to process next - * packet */ + /* + * Change ST LL state to continue to process next + * packet + */ kim_gdata->rx_state = ST_W4_PACKET_TYPE; kim_gdata->rx_skb = NULL; kim_gdata->rx_count = 0; @@ -115,7 +121,7 @@ static inline int kim_check_data_len(struct kim_data_s *kim_gdata, int len) return 0; } -/** +/* * kim_int_recv - receive function called during firmware download * firmware download responses on different UART drivers * have been observed to come in bursts of different @@ -216,7 +222,8 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name) return timeout ? -ERESTARTSYS : -ETIMEDOUT; } reinit_completion(&kim_gdata->kim_rcvd); - /* the positions 12 & 13 in the response buffer provide with the + /* + * the positions 12 & 13 in the response buffer provide with the * chip, major & minor numbers */ @@ -263,7 +270,7 @@ static void skip_change_remote_baud(unsigned char **ptr, long *len) } } -/** +/* * download_firmware - * internal function which parses through the .bts firmware * script file intreprets SEND, DELAY actions only as of now @@ -295,7 +302,8 @@ static long download_firmware(struct kim_data_s *kim_gdata) } ptr = (void *)kim_gdata->fw_entry->data; len = kim_gdata->fw_entry->size; - /* bts_header to remove out magic number and + /* + * bts_header to remove out magic number and * version */ ptr += sizeof(struct bts_header); @@ -313,8 +321,10 @@ static long download_firmware(struct kim_data_s *kim_gdata) if (unlikely (((struct hci_command *)action_ptr)->opcode == 0xFF36)) { - /* ignore remote change - * baud rate HCI VS command */ + /* + * ignore remote change + * baud rate HCI VS command + */ pr_warn("change remote baud" " rate command in firmware"); skip_change_remote_baud(&ptr, &len); @@ -346,7 +356,8 @@ static long download_firmware(struct kim_data_s *kim_gdata) release_firmware(kim_gdata->fw_entry); return -ETIMEDOUT; } - /* reinit completion before sending for the + /* + * reinit completion before sending for the * relevant wait */ reinit_completion(&kim_gdata->kim_rcvd); @@ -418,14 +429,16 @@ void st_kim_recv(void *disc_data, const unsigned char *data, long count) struct st_data_s *st_gdata = (struct st_data_s *)disc_data; struct kim_data_s *kim_gdata = st_gdata->kim_data; - /* proceed to gather all data and distinguish read fw version response + /* + * proceed to gather all data and distinguish read fw version response * from other fw responses when data gathering is complete */ kim_int_recv(kim_gdata, data, count); return; } -/* to signal completion of line discipline installation +/* + * to signal completion of line discipline installation * called from ST Core, upon tty_open */ void st_kim_complete(void *kim_data) @@ -434,7 +447,7 @@ void st_kim_complete(void *kim_data) complete(&kim_gdata->ldisc_installed); } -/** +/* * st_kim_start - called from ST Core upon 1st registration * This involves toggling the chip enable gpio, reading * the firmware version from chip, forming the fw file name @@ -472,8 +485,10 @@ long st_kim_start(void *kim_data) err = wait_for_completion_interruptible_timeout( &kim_gdata->ldisc_installed, msecs_to_jiffies(LDISC_TIME)); if (!err) { - /* ldisc installation timeout, - * flush uart, power cycle BT_EN */ + /* + * ldisc installation timeout, + * flush uart, power cycle BT_EN + */ pr_err("ldisc installation timeout"); err = st_kim_stop(kim_gdata); continue; @@ -482,8 +497,10 @@ long st_kim_start(void *kim_data) pr_info("line discipline installed"); err = download_firmware(kim_gdata); if (err != 0) { - /* ldisc installed but fw download failed, - * flush uart & power cycle BT_EN */ + /* + * ldisc installed but fw download failed, + * flush uart & power cycle BT_EN + */ pr_err("download firmware failed"); err = st_kim_stop(kim_gdata); continue; @@ -495,7 +512,7 @@ long st_kim_start(void *kim_data) return err; } -/** +/* * st_kim_stop - stop communication with chip. * This can be called from ST Core/KIM, on the- * (a) last un-register when chip need not be powered there-after, @@ -650,7 +667,7 @@ static const struct attribute_group uim_attr_grp = { .attrs = uim_attrs, }; -/** +/* * st_kim_ref - reference the core's data * This references the per-ST platform device in the arch/xx/ * board-xx.c file. @@ -729,8 +746,7 @@ static int kim_probe(struct platform_device *pdev) pr_err(" unable to configure gpio %d", kim_gdata->nshutdown); goto err_sysfs_group; } - /* get reference of pdev for request_firmware - */ + /* get reference of pdev for request_firmware */ kim_gdata->kim_pdev = pdev; init_completion(&kim_gdata->kim_rcvd); init_completion(&kim_gdata->ldisc_installed); @@ -772,7 +788,8 @@ static int kim_remove(struct platform_device *pdev) kim_gdata = platform_get_drvdata(pdev); - /* Free the Bluetooth/FM/GPIO + /* + * Free the Bluetooth/FM/GPIO * nShutdown gpio from the system */ gpio_free(pdata->nshutdown_gpio); -- 2.25.1