From patchwork Thu Aug 11 15:31:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksey Makarov X-Patchwork-Id: 9275461 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id ED4FC60CDC for ; Thu, 11 Aug 2016 15:35:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5745286FF for ; Thu, 11 Aug 2016 15:35:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C9535286F6; Thu, 11 Aug 2016 15:35:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id D4AFA286F6 for ; Thu, 11 Aug 2016 15:35:55 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.85_2 #1 (Red Hat Linux)) id 1bXrzz-00042H-K2; Thu, 11 Aug 2016 15:34:23 +0000 Received: from mail-wm0-x231.google.com ([2a00:1450:400c:c09::231]) by bombadil.infradead.org with esmtps (Exim 4.85_2 #1 (Red Hat Linux)) id 1bXrze-0003uS-Sh for linux-arm-kernel@lists.infradead.org; Thu, 11 Aug 2016 15:34:04 +0000 Received: by mail-wm0-x231.google.com with SMTP id o80so3696310wme.1 for ; Thu, 11 Aug 2016 08:33:41 -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=sWhCIiO2Q6VFc87rw0CDGdc6tKS13fS/80d3KMoD3Hc=; b=LohKuwnsR4xy2l+hcFBmpwv1+EEYtOz4Bm7UiWAlIEf/dbiweMjU1oQbNMarJcE8V8 1zTYv8+XAA0eltLoOSy2irhIButE7QuwQ3WspI0lMcCNnVqX+0EBC9VPO95Yo2eq5TEL kJzl7IeDuIRf0Kz1JJ6714D+L1pfHUj864EZ4= 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=sWhCIiO2Q6VFc87rw0CDGdc6tKS13fS/80d3KMoD3Hc=; b=j9NgNQ1uaq24XVpC3vc0+YD0H/HWwSAy9N++mFDGDd139wSetHixgRXuEydUFIQQVA LiiMufgH5Bzu5kQmBhhtfwofoK4XdDMC/PggQRrJXgvlgR/XjyXNPKkw2ifpFn/ydjtK qQYZ4564oQuT78vkt3AMMCgXmHoWe4sY9UFcJP7qoyz+gTM25h7nUz9YHydRQU7bwqmo S65bD7G82B5MkKgmmDfjRHaL3lm79/SCJV+9rz6YVh8dD8ogVmtYXaoTaxgs+z8bF++5 4VUqyNNyD/tz/X0UfJWKUg1xvPDL7ql8/LSOJZv99vrY9NQJP6fM+qmcX3Q1jeaqLOn9 Z1vg== X-Gm-Message-State: AEkoouv69kZCDJbqjJv50PgWl0dJkYAK/bmJfysOEiB6s/1bjscLjkwh7JkktqglVGr4iLvY X-Received: by 10.25.217.151 with SMTP id s23mr1823992lfi.16.1470929620290; Thu, 11 Aug 2016 08:33:40 -0700 (PDT) Received: from localhost.localdomain (nivc-213.auriga.ru. [80.240.102.213]) by smtp.gmail.com with ESMTPSA id 78sm192097lfv.39.2016.08.11.08.33.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 11 Aug 2016 08:33:39 -0700 (PDT) From: Aleksey Makarov To: "Rafael J . Wysocki" , Greg Kroah-Hartman Subject: [PATCH v9 1/4] of/serial: move earlycon early_param handling to serial Date: Thu, 11 Aug 2016 18:31:38 +0300 Message-Id: <20160811153152.755-2-aleksey.makarov@linaro.org> X-Mailer: git-send-email 2.9.2 In-Reply-To: <20160811153152.755-1-aleksey.makarov@linaro.org> References: <20160811153152.755-1-aleksey.makarov@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160811_083403_188475_0EE63AED X-CRM114-Status: GOOD ( 15.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Zheng, Lv" , devicetree@vger.kernel.org, Kefeng Wang , Russell King , Peter Hurley , Graeme Gregory , Andy Shevchenko , linux-kernel@vger.kernel.org, Leif Lindholm , linux-acpi@vger.kernel.org, Aleksey Makarov , Yury Norov , Christopher Covington , linux-serial@vger.kernel.org, Mark Salter , Rob Herring , Jiri Slaby , Frank Rowand , Al Stone , linux-arm-kernel@lists.infradead.org, Len Brown MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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 Acked-by: Greg Kroah-Hartman Reviewed-by: Peter Hurley Tested-by: Kefeng Wang --- 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 55f1b83..741cac53 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -924,7 +924,7 @@ 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; @@ -968,15 +968,6 @@ 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 26c3302..2f69d4c 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -66,6 +66,7 @@ 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); @@ -94,6 +95,7 @@ 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; }