From patchwork Wed Sep 10 11:31:29 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 4876371 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 604C6C0338 for ; Wed, 10 Sep 2014 11:34:15 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BCECA201C0 for ; Wed, 10 Sep 2014 11:34:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7A4EC20149 for ; Wed, 10 Sep 2014 11:34:09 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XRg8Q-0007hM-IN; Wed, 10 Sep 2014 11:32:26 +0000 Received: from bhuna.collabora.co.uk ([93.93.135.160]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XRg88-0007Sx-6M for linux-arm-kernel@lists.infradead.org; Wed, 10 Sep 2014 11:32:09 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: javier) with ESMTPSA id 2BB9126880DE From: Javier Martinez Canillas To: Kukjin Kim Subject: [PATCH v4 1/3] ARM: dts: Add Peach Pit dts entry for Atmel touchpad Date: Wed, 10 Sep 2014 13:31:29 +0200 Message-Id: <1410348691-18317-2-git-send-email-javier.martinez@collabora.co.uk> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1410348691-18317-1-git-send-email-javier.martinez@collabora.co.uk> References: <1410348691-18317-1-git-send-email-javier.martinez@collabora.co.uk> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140910_043208_419622_D38013BF X-CRM114-Status: GOOD ( 12.25 ) X-Spam-Score: -2.5 (--) Cc: linux-samsung-soc@vger.kernel.org, Doug Anderson , Nick Dyer , linux-kernel@vger.kernel.org, Sjoerd Simons , Javier Martinez Canillas , Olof Johansson , Yufeng Shen , afaerber@suse.de, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sjoerd Simons The Peach Pit board has an Atmel maXTouch trackpad device. Add the needed Device Tree nodes to support it. This Device Tree change is based on the Chrome OS 3.8 tree but adapted to use the mainline Atmel maXTouch DT binding. Signed-off-by: Sjoerd Simons Signed-off-by: Javier Martinez Canillas Reviewed-by: Dmitry Torokhov --- Changes since v3: - Use KEY_RESERVED even for not reserved pins with a GPIO not hooked. Suggested by Nick Dyer. - Add a comment to specify the maXTouch chip version so is more clear. Suggested by Nick Dyer. - Omit trailing omit KEY_RESERVED after the GPIO pins. Suggested by Nick Dyer. Changes since v2: - Add spaces around '=' on properties. Suggested by Andreas Faerber. Changes since v1: - Change trackpad IRQ pad function from 0x0 (GPIO input) to 0xf (GPIO IRQ). suggested by Tomasz Figa. - Remove BTN_TOOL_* from "linux,gpio-keymap" property since those are set by input mt core if INPUT_MT_POINTER is set. Suggested by Nick Dyer. - Use correct values for "linux,gpio-keymap" property. Suggested by Nick Dyer. - Remove support for Peach Pi board since it uses a different Atmel touchpad that requires an Atmel object protocol (T100) not supported by the driver. - Use IRQ type constants from instead of magic numbers. Suggested by Andreas Faerber. arch/arm/boot/dts/exynos5420-peach-pit.dts | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts index f247709..ad56d4c 100644 --- a/arch/arm/boot/dts/exynos5420-peach-pit.dts +++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts @@ -507,6 +507,28 @@ }; }; +&hsi2c_8 { + status = "okay"; + clock-frequency = <333000>; + + /* Atmel mXT336S */ + trackpad@4b { + compatible = "atmel,maxtouch"; + reg = <0x4b>; + interrupt-parent = <&gpx1>; + interrupts = <1 IRQ_TYPE_EDGE_FALLING>; + wakeup-source; + pinctrl-names = "default"; + pinctrl-0 = <&trackpad_irq>; + linux,gpio-keymap = ; /* GPIO3 */ + }; +}; + &hsi2c_9 { status = "okay"; clock-frequency = <400000>; @@ -591,6 +613,13 @@ samsung,pin-drv = <0>; }; + trackpad_irq: trackpad-irq { + samsung,pins = "gpx1-1"; + samsung,pin-function = <0xf>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; + power_key_irq: power-key-irq { samsung,pins = "gpx1-2"; samsung,pin-function = <0>;