From patchwork Mon Jan 14 12:05:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robin Murphy X-Patchwork-Id: 10762291 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BCBDD746 for ; Mon, 14 Jan 2019 12:06:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AC68328A8C for ; Mon, 14 Jan 2019 12:06:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9F37428B8D; Mon, 14 Jan 2019 12:06:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 362AA28A8C for ; Mon, 14 Jan 2019 12:06:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=vLcFVOVsLYR9/qpz28wBtD/caI/6ITM1PVlQVPrKics=; b=OYIAwk6cGhPQvr 5tKuF0h28WxWjNCWldrWWW1uG+Rxx3kyvvUTeWKAKsD2nPh2yI4LQTyE6YTFKdBd2ItyLPr/3EwNG 96dOLN1FzMQTv8heLy34HjxP5e68E9NYcXowH2OzycW7lo20l88aiIvOCv/XXt8KHINeTJUAN0bi1 I+SjOCxWh2fZx1A697MaOODU7k1MfL0xQo/wC0SZwR8ZWTu5jEYSik1Kr1uTiJVyo9p4gdJWhrLPn MkrW79agnwqnGLdnA87I+3BwV3MLcDwanIeiFK273lItYGuXFjugM8YtMaLnkHyBGOF9hrgLqr/dl CEcI3LWDbzRjyR4aWlJQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gj10j-0007WN-UV; Mon, 14 Jan 2019 12:06:33 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gj102-0006jj-GR; Mon, 14 Jan 2019 12:05:54 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 541FD15AB; Mon, 14 Jan 2019 04:05:50 -0800 (PST) Received: from e110467-lin.cambridge.arm.com (e110467-lin.cambridge.arm.com [10.1.196.75]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 5F1513F5BD; Mon, 14 Jan 2019 04:05:49 -0800 (PST) From: Robin Murphy To: heiko@sntech.de Subject: [PATCH v2 3/4] arm64: dts: rockchip: Add NanoPC-T4 IR receiver Date: Mon, 14 Jan 2019 12:05:33 +0000 Message-Id: <7356fc6d1e3eebfec0408d0ca61b32c11e4994e9.1547466003.git.robin.murphy@arm.com> X-Mailer: git-send-email 2.20.1.dirty In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190114_040550_718824_D2A313F9 X-CRM114-Status: GOOD ( 15.30 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP In common with most Rockchip reference designs, NanoPC-T4 has a passive IR receiver connected to PWM3. In lieu of a specialised driver for PWM-based IR pulse measurement, running the pin as a GPIO with the basic driver works perfectly well. Signed-off-by: Robin Murphy --- v2: No change .../arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts index 623a03f2548a..84433cf02be9 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts @@ -45,6 +45,22 @@ press-threshold-microvolt = <18000>; }; }; + + ir-receiver { + compatible = "gpio-ir-receiver"; + gpios = <&gpio0 RK_PA6 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&ir_rx>; + }; +}; + +&pinctrl { + ir { + ir_rx: ir-rx { + /* external pullup to VCC3V3_SYS, despite being 1.8V :/ */ + rockchip,pins = <0 RK_PA6 RK_FUNC_1 &pcfg_pull_none>; + }; + }; }; &sdhci {