From nobody Sun Nov 24 11:48:18 2024 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 634EA2A1CA; Tue, 5 Nov 2024 13:20:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.154.123 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730812827; cv=none; b=vDvp5TLK7lEudLIaozsk1nrmHiJTvTaLBc0tIcgedKu4EJF+frKZo5azJ6frZJ4QOKqbrq8AECh8kpKFHWVYDS42RvvuLY7reI72ySsNQal2UbT3KTJO7NHE3rI03ddiQLUf7d4e/cUu1IEX9odp15y1GOfDXIlbGxjnRMp3k7I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730812827; c=relaxed/simple; bh=t4B7PF0GVND0Gy78sX+dlhk6AmSUO1xVVVrNeGvJcPk=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=FtlKbZdzV24Mq5EIxBeh09ywWZsSmDAjIuGXY62lIMNwV0Hw2J+O1WMSsO/7jSlbZ8kR1PwUjHnsH53bUg9WZWTasg/xeb02iyEZeltDpLOeuHU9pFLz0lVuwqANVGzQWzfuR8GaBixam1IvOiCD+Nnztt/jE76k7osVw9EFLbk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=H/sI/e3+; arc=none smtp.client-ip=68.232.154.123 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="H/sI/e3+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1730812825; x=1762348825; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=t4B7PF0GVND0Gy78sX+dlhk6AmSUO1xVVVrNeGvJcPk=; b=H/sI/e3+zLnUBS4Z+sluwio6iKxJ7+WnUuAScfF61zCkwS4jdE5ET8ea bZzAEd2/GfhuOBKYKHtc5/Pp/og8+U6dhXJeEVIxWOUy45WU/uRkEvzI9 Pu33IUEkBuHYndqN8XwKt0gulvt+vzjj7eR6f33vtgT04HlAXtdnOL4ri +7L51Z8eQnxgaekbqUuZHEIG07XE0VT7zsgrfcWrNzFdeq1werbaqi2ho NWzFWYRK24Vpr7Hf+qU/x8XBg5CGKeRUReZKomg8h6nwuSXWOdKwb+kMV j13bW+zHRewd26YzH3lPb7OgxD2CEyLeItI7ocDuuCvc0adM+SfqK0xYQ A==; X-CSE-ConnectionGUID: 7UwmSSx7Sxu5wyqCow4vig== X-CSE-MsgGUID: uSOrPrBvQjyXZyAaZGLjqg== X-IronPort-AV: E=Sophos;i="6.11,260,1725346800"; d="scan'208";a="34411485" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa2.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 05 Nov 2024 06:20:17 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Tue, 5 Nov 2024 06:19:57 -0700 Received: from archlinux.microchip.com (10.10.85.11) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2507.35 via Frontend Transport; Tue, 5 Nov 2024 06:19:55 -0700 From: Mihai Sain To: , , , , , , , , , CC: Mihai Sain Subject: [PATCH] tty: atmel_serial: Use devm_platform_ioremap_resource() Date: Tue, 5 Nov 2024 15:19:46 +0200 Message-ID: <20241105131946.22449-1-mihai.sain@microchip.com> X-Mailer: git-send-email 2.47.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Simplify the request port function by using a single call to devm_platform_ioremap_resource(). This will also enhance the printing from /proc/iomem: cat /proc/iomem | grep flexcom ; cat /proc/iomem | grep serial f0004000-f00041ff : f0004000.flexcom flexcom@f0004000 f8020000-f80201ff : f8020000.flexcom flexcom@f8020000 f0004200-f00043ff : f0004200.serial serial@200 f8020200-f80203ff : f8020200.serial serial@200 fffff200-fffff3ff : fffff200.serial serial@fffff200 Signed-off-by: Mihai Sain Reviewed-by: Hari Prasath Gujulan Elango Tested-by: Andrei Simion --- drivers/tty/serial/atmel_serial.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_s= erial.c index 09b246c9e389..e1107f14ec98 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -2419,17 +2419,11 @@ static void atmel_release_port(struct uart_port *po= rt) static int atmel_request_port(struct uart_port *port) { struct platform_device *mpdev =3D to_platform_device(port->dev->parent); - int size =3D resource_size(mpdev->resource); - - if (!request_mem_region(port->mapbase, size, "atmel_serial")) - return -EBUSY; =20 if (port->flags & UPF_IOREMAP) { - port->membase =3D ioremap(port->mapbase, size); - if (port->membase =3D=3D NULL) { - release_mem_region(port->mapbase, size); - return -ENOMEM; - } + port->membase =3D devm_platform_ioremap_resource(mpdev, 0); + if (IS_ERR(port->membase)) + return PTR_ERR(port->membase); } =20 return 0; base-commit: 2e1b3cc9d7f790145a80cb705b168f05dab65df2 --=20 2.47.0