From patchwork Tue Jun 28 03:17:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kefeng Wang X-Patchwork-Id: 70972 Delivered-To: patch@linaro.org Received: by 10.140.28.4 with SMTP id 4csp1365044qgy; Mon, 27 Jun 2016 20:19:37 -0700 (PDT) X-Received: by 10.98.73.198 with SMTP id r67mr1166445pfi.50.1467083977394; Mon, 27 Jun 2016 20:19:37 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 90si30585449pfr.48.2016.06.27.20.19.37; Mon, 27 Jun 2016 20:19:37 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752143AbcF1DTf (ORCPT + 30 others); Mon, 27 Jun 2016 23:19:35 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:34207 "EHLO szxga03-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751749AbcF1DTc (ORCPT ); Mon, 27 Jun 2016 23:19:32 -0400 Received: from 172.24.1.136 (EHLO szxeml427-hub.china.huawei.com) ([172.24.1.136]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id CDZ80414; Tue, 28 Jun 2016 11:19:24 +0800 (CST) Received: from linux-ibm.site (10.175.102.37) by szxeml427-hub.china.huawei.com (10.82.67.182) with Microsoft SMTP Server id 14.3.235.1; Tue, 28 Jun 2016 11:19:17 +0800 From: Kefeng Wang To: Greg Kroah-Hartman CC: Jiri Slaby , , , Andy Shevchenko , , , Kefeng Wang Subject: [PATCH 2/2] serial: 8250_dw: add ACPI support for uart on Hisilicon Hip05 soc Date: Tue, 28 Jun 2016 11:17:15 +0800 Message-ID: <1467083835-37750-3-git-send-email-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 1.7.12.4 In-Reply-To: <1467083835-37750-1-git-send-email-wangkefeng.wang@huawei.com> References: <1467083835-37750-1-git-send-email-wangkefeng.wang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.102.37] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020206.5771ECBE.0008, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 9e96b6390e1055f9949721b5c4201db7 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add ACPI identifier for UART on Hisilicon Hip05 soc, be careful that it is not 16550 compatibal. Meanwhile, set dw8250_serial_out32 to keep consistent between serial_out and serial_in in ACPI. Signed-off-by: Kefeng Wang --- drivers/tty/serial/8250/8250_dw.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) -- 1.7.12.4 diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 65f3da7..7571b0f 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -301,8 +301,11 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data) p->iotype = UPIO_MEM32; p->regshift = 2; p->serial_in = dw8250_serial_in32; - /* So far none of there implement the Busy Functionality */ - data->uart_16550_compatible = true; + p->serial_out = dw8250_serial_out32; + + /* Hisilicon 8250 dw uart is not 16550 compatible */ + if (!acpi_dev_found("HISI0031")) + data->uart_16550_compatible = true; } /* Platforms with iDMA */ @@ -618,6 +621,7 @@ static const struct acpi_device_id dw8250_acpi_match[] = { { "APMC0D08", 0}, { "AMD0020", 0 }, { "AMDI0020", 0 }, + { "HISI0031", 0 }, { }, }; MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);