From patchwork Thu Mar 31 13:40:23 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksey Makarov X-Patchwork-Id: 8713421 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id EE5AA9F38C for ; Thu, 31 Mar 2016 13:46:22 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7B90420138 for ; Thu, 31 Mar 2016 13:46:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3379620272 for ; Thu, 31 Mar 2016 13:46:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756926AbcCaNnK (ORCPT ); Thu, 31 Mar 2016 09:43:10 -0400 Received: from mail-lb0-f174.google.com ([209.85.217.174]:33598 "EHLO mail-lb0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756829AbcCaNnD (ORCPT ); Thu, 31 Mar 2016 09:43:03 -0400 Received: by mail-lb0-f174.google.com with SMTP id u8so52846991lbk.0 for ; Thu, 31 Mar 2016 06:43:02 -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; bh=NZj//9TlQs9FqHvZCpSuJMBP7MK4XoRJ4rIKWOwDWAM=; b=GvuDbFEiUnXr7x5oOBoTxBJkFrbQjramxCdhGH0SPX1u/APetvBFCK7D35EqbUNmFS daycBjf5liC3ckAH9n89P8F1r+I0FIFbTwFYnYghFHtei1nCEyj/Pd/zAevBwi8e6Ku9 WGdfDBZLOYEaMNCHQyNeG3WnRrL5l1O0aQe0o= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=NZj//9TlQs9FqHvZCpSuJMBP7MK4XoRJ4rIKWOwDWAM=; b=hpxjku1p1LJbxfQfwWNeczAa/yWz25Vk8eNIIC5FlTCWtmw5K34d7KRemrotc5W900 b+a7xEeQ6Z8dSD1gsTVhORxfNeQ3v9sMIOIFup+wa+vvcmPx5jjUlsHzqmWWGSq4ZKT6 NulLvw7gq1OBe3RE77Mopk0a/7G3bB7xVpXaQyIitdyRPAnQyiE8GEPIvLwlvPR9tuBQ 4rxGb9QDJN/3+ko/ggqQlEQaNIhVrp1UdQk8gntUpH02ogntBDM4DdM/SI5gWd9xhs5g mSajnK4CPeOtwum1fxSyj8NAR8zwmp06kZr0PzxGhdwoYbWOwm3ifw1wU3rDZ5y+FpEJ c4ZQ== X-Gm-Message-State: AD7BkJLNxcFLRpxAbEtfqBCaaQcFhq2Aaj48sT22SQ2arz20ekhmv9RGXtqb/Xj5aDk5RH3W X-Received: by 10.112.235.195 with SMTP id uo3mr5602162lbc.18.1459431781681; Thu, 31 Mar 2016 06:43:01 -0700 (PDT) Received: from turnip.localdomain (nivc-213.auriga.ru. [80.240.102.213]) by smtp.gmail.com with ESMTPSA id mi9sm1285984lbc.27.2016.03.31.06.43.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 31 Mar 2016 06:43:00 -0700 (PDT) From: Aleksey Makarov To: Russell King , Greg Kroah-Hartman Cc: linux-serial@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Aleksey Makarov , "Rafael J . Wysocki" , Len Brown , Leif Lindholm , Graeme Gregory , Al Stone , Christopher Covington , Yury Norov , Peter Hurley , Andy Shevchenko , "Zheng, Lv" , Rob Herring , Frank Rowand , Grant Likely , Jiri Slaby , devicetree@vger.kernel.org Subject: [PATCH v7 1/5] of/serial: move earlycon early_param handling to serial Date: Thu, 31 Mar 2016 16:40:23 +0300 Message-Id: <1459431629-27934-2-git-send-email-aleksey.makarov@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1459431629-27934-1-git-send-email-aleksey.makarov@linaro.org> References: <1459431629-27934-1-git-send-email-aleksey.makarov@linaro.org> Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-7.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Leif Lindholm We have multiple "earlycon" early_param handlers - merge the DT one into the main earlycon one. It's a cleanup that also will be useful to defer setting up DT console until ACPI/DT decision is made. Rename the exported function to avoid clashing with the function from arch/microblaze/kernel/prom.c Signed-off-by: Leif Lindholm Signed-off-by: Aleksey Makarov Acked-by: Rob Herring Reviewed-by: Peter Hurley Acked-by: Greg Kroah-Hartman --- drivers/of/fdt.c | 11 +---------- drivers/tty/serial/earlycon.c | 2 +- include/linux/of_fdt.h | 2 ++ 3 files changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 3349d2a..b50f775 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -805,7 +805,7 @@ static inline void early_init_dt_check_for_initrd(unsigned long node) #ifdef CONFIG_SERIAL_EARLYCON -static int __init early_init_dt_scan_chosen_serial(void) +int __init early_init_dt_scan_chosen_stdout(void) { int offset; const char *p, *q, *options = NULL; @@ -849,15 +849,6 @@ static int __init early_init_dt_scan_chosen_serial(void) } return -ENODEV; } - -static int __init setup_of_earlycon(char *buf) -{ - if (buf) - return 0; - - return early_init_dt_scan_chosen_serial(); -} -early_param("earlycon", setup_of_earlycon); #endif /** diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c index 067783f..7aae655 100644 --- a/drivers/tty/serial/earlycon.c +++ b/drivers/tty/serial/earlycon.c @@ -209,7 +209,7 @@ static int __init param_setup_earlycon(char *buf) * don't generate a warning from parse_early_params() in that case */ if (!buf || !buf[0]) - return 0; + return early_init_dt_scan_chosen_stdout(); err = setup_earlycon(buf); if (err == -ENOENT || err == -EALREADY) diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 2fbe868..5cfe322 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -63,6 +63,7 @@ extern int early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data); extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); +extern int early_init_dt_scan_chosen_stdout(void); extern void early_init_fdt_scan_reserved_mem(void); extern void early_init_fdt_reserve_self(void); extern void early_init_dt_add_memory_arch(u64 base, u64 size); @@ -91,6 +92,7 @@ extern void early_get_first_memblock_info(void *, phys_addr_t *); extern u64 of_flat_dt_translate_address(unsigned long node); extern void of_fdt_limit_memory(int limit); #else /* CONFIG_OF_FLATTREE */ +static inline int early_init_dt_scan_chosen_stdout(void) { return -ENODEV; } static inline void early_init_fdt_scan_reserved_mem(void) {} static inline void early_init_fdt_reserve_self(void) {} static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }