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;
From:   Markuss Broks <markuss.broks@gmail.com>
To:     linux-kernel@vger.kernel.org
Cc:     ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org,
        Markuss Broks <markuss.broks@gmail.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Ard Biesheuvel <ardb@kernel.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Jiri Slaby <jirislaby@kernel.org>,
        Helge Deller <deller@gmx.de>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Borislav Petkov <bp@suse.de>,
        Kees Cook <keescook@chromium.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Randy Dunlap <rdunlap@infradead.org>,
        Damien Le Moal <damien.lemoal@opensource.wdc.com>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Michal Suchanek <msuchanek@suse.de>,
        Javier Martinez Canillas <javierm@redhat.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Wei Ming Chen <jj251510319013@gmail.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Tony Lindgren <tony@atomide.com>, linux-doc@vger.kernel.org,
        linux-efi@vger.kernel.org, linux-serial@vger.kernel.org,
        linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org
Subject: [PATCH v2 2/3] drivers: serial: earlycon: Pass device-tree node
Date:   Sat,  6 Aug 2022 19:32:23 +0300
Message-Id: <20220806163255.10404-3-markuss.broks@gmail.com>
In-Reply-To: <20220806163255.10404-1-markuss.broks@gmail.com>
References: <20220806163255.10404-1-markuss.broks@gmail.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Pass a pointer to device-tree node in case the driver probed from
OF. This makes early console drivers able to fetch options from
device-tree node properties.

Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
---
 drivers/tty/serial/earlycon.c | 3 +++
 include/linux/serial_core.h   | 1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index bc210ae8173d97d5ef422468acf2755a853cb943..be2f01520f6608f6ece725dd83d2526e30477b47 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -304,6 +304,9 @@ int __init of_setup_earlycon(const struct earlycon_id *match,
 		strlcpy(early_console_dev.options, options,
 			sizeof(early_console_dev.options));
 	}
+
+	early_console_dev.offset = offset;
+
 	earlycon_init(&early_console_dev, match->name);
 	err = match->setup(&early_console_dev, options);
 	earlycon_print_info(&early_console_dev);
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index cbd5070bc87f42aa450c4ca7af8a9b59fbe88574..e65b9aba4e5fdaedb560d2cbbf326a11cfecbcac 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -349,6 +349,7 @@ struct earlycon_device {
 	struct uart_port port;
 	char options[16];		/* e.g., 115200n8 */
 	unsigned int baud;
+	int offset;
 };
 
 struct earlycon_id {
-- 
2.37.0