From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757356AbcIGOuR (ORCPT ); Wed, 7 Sep 2016 10:50:17 -0400 Received: from mout.kundenserver.de ([212.227.126.134]:55157 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756573AbcIGOuO (ORCPT ); Wed, 7 Sep 2016 10:50:14 -0400 From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: Zhichang Yuan , linuxarm@huawei.com, linux-kernel@vger.kernel.org, lorenzo.pieralisi@arm.com, minyard@acm.org, benh@kernel.crashing.org, gabriele.paoloni@huawei.com, john.garry@huawei.com, liviu.dudau@arm.com, zhichang.yuan02@gmail.com, zourongrong@gmail.com Subject: Re: [PATCH V2 3/4] ARM64 LPC: support serial based on low-pin-count Date: Wed, 07 Sep 2016 16:50:01 +0200 Message-ID: <5345060.9D0B4ujt5e@wuerfel> User-Agent: KMail/5.1.3 (Linux/4.4.0-34-generic; KDE/5.18.0; x86_64; ; ) In-Reply-To: <1473255233-154297-4-git-send-email-yuanzhichang@hisilicon.com> References: <1473255233-154297-1-git-send-email-yuanzhichang@hisilicon.com> <1473255233-154297-4-git-send-email-yuanzhichang@hisilicon.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:CkxM1b7T0jBs0lapZV4nS2s8UWvrSA1Tnq+TV+AdYgsZcnMDURz YrWnHR9v3X1jL3E2Ks3qFxtTKmAXaM3YlT2LIjVQAMV25kyX9tYphRN5FYBpbGAdFRi+i54 Rwi6p6ekIIOy6dRFcdk29JWRBDIDJgMjsEBKGNgzzpfpyHWsC+t9ftpoc/oj0PKTqZfB4su g3viiO6Gg6Xc51tQRE9+A== X-UI-Out-Filterresults: notjunk:1;V01:K0:I8sOXODaCrU=:GGOxy7QySFn29yYQeLwS+H PEdHJpkPP06f+BJuYe3Vh36WBS6Hibx2FLmE7YtVWxcBJrKG3g96wU97mroLYKzKGUTuRcUY3 xEw0RDu2dgfT6G7dJy1kHrt++61c56z8KQXLCBV8Ig8O9ovBGnNkBrXtg5rtmSTS9aZoSNxjg zAwO8gzSP/DJ2B7C4Z3I8CifQ5/RSggFGurTevz6P8kCBYyj2oPtT/JA/3/nPLRRDMk5E0mqB HCcJ0QEhxH1XGkbdCVqLPsSwftgMm0+FiVhV/E4VU7zz0TNrqQLbqu8l7ruKbKAA56uEZ9tx9 AjMCAaLcGayPtnGYXNOTx3rC6Z9TTTpZ9AEilF9RGP5sQyeyzgxB325l0i3YVWYhAHrWgyH5G YOhwGzq7DaJYXQ6BAauAvYwEuQDLnEY0JKS+PxJyRXY8LeJ/zQvSGO/x6YBoJg8l9kAjRtKel PJse2WMsVU042i93TWZ7SnAFDfUJE9OclUIa8NGEbl1PgSCqYYFktjx4SmsZQ8NyQj90Aj06K iOuTBH9QwTwyUc1po1pyFGyl0dfbwxFhfgziEWim6zSK3zJHZkhmYDkiMqoSx3S+6oK7wnKQQ vEunYz7N8C9olTU/ucDxq4ElpjfqKSGUNBQlzdUDnTJM158ztYDO7pgRxYqb4m8bQVe24S5xc gj1Y6u0BSxF5CmqW7yRTh2doL86AWGiLV+lLOP3GxOyjlqgz/An20r9nFgz/DaglliuJBKg/x 9+0BBD4CmIkP9qEA Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday, September 7, 2016 9:33:52 PM CEST Zhichang Yuan wrote: > From: "zhichang.yuan" > > On Hip06 platform, a 16550 compatible UART is connected to low-pin-count and > controlled through the LPC I/O cycles. This patch drives the UART port with > the specific serial in/out function pair based on the indirect-IO mechanism > introduced by Hip06 LPC driver. > > Signed-off-by: zhichang.yuan Any reason this cannot just use the regular drivers/tty/serial/8250/8250_of.c driver? Arnd