From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C126C28CC3 for ; Sun, 2 Jun 2019 01:04:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 59F76277CB for ; Sun, 2 Jun 2019 01:04:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726800AbfFBBE1 (ORCPT ); Sat, 1 Jun 2019 21:04:27 -0400 Received: from mailgw01.mediatek.com ([216.200.240.184]:58334 "EHLO mailgw01.mediatek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726211AbfFBBE1 (ORCPT ); Sat, 1 Jun 2019 21:04:27 -0400 X-UUID: 66ed6f722bb24d64bf3ae33a0e242ed2-20190601 X-UUID: 66ed6f722bb24d64bf3ae33a0e242ed2-20190601 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1308218860; Sat, 01 Jun 2019 17:04:23 -0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 1 Jun 2019 18:04:21 -0700 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sun, 2 Jun 2019 09:04:20 +0800 From: To: , , , CC: , , , , , Sean Wang Subject: [PATCH v1 1/4] dt-bindings: net: bluetooth: add boot-gpios property to UART-based device Date: Sun, 2 Jun 2019 09:04:14 +0800 Message-ID: <1559437457-26766-2-git-send-email-sean.wang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1559437457-26766-1-git-send-email-sean.wang@mediatek.com> References: <1559437457-26766-1-git-send-email-sean.wang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sean Wang Not every platform has the pinctrl device integrates the GPIO the function such as MT7621 whose pinctrl and GPIO are separate hardware so adding an additional boot-gpios property for such platform allows them to bring up the device. Signed-off-by: Sean Wang --- .../devicetree/bindings/net/mediatek-bluetooth.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt index 41a7dcc80f5b..14f23b354a6d 100644 --- a/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt +++ b/Documentation/devicetree/bindings/net/mediatek-bluetooth.txt @@ -50,11 +50,24 @@ Required properties: "mediatek,mt7663u-bluetooth": for MT7663U device "mediatek,mt7668u-bluetooth": for MT7668U device - vcc-supply: Main voltage regulator + +If the pin controller on the platform can support both pinmux and GPIO +control such as the most of MediaTek platform. Please use below properties. + - pinctrl-names: Should be "default", "runtime" - pinctrl-0: Should contain UART RXD low when the device is powered up to enter proper bootstrap mode. - pinctrl-1: Should contain UART mode pin ctrl +Else, the pin controller on the platform only can support pinmux control and +the GPIO control still has to rely on the dedicated GPIO controller such as +a legacy MediaTek SoC, MT7621. Please use the below properties. + +- boot-gpios: GPIO same to the pin as UART RXD and used to keep LOW when + the device is powered up to enter proper bootstrap mode when +- pinctrl-names: Should be "default" +- pinctrl-0: Should contain UART mode pin ctrl + Optional properties: - reset-gpios: GPIO used to reset the device whose initial state keeps low, -- 2.17.1