From patchwork Tue Apr 11 10:27:57 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 9674897 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C212F60382 for ; Tue, 11 Apr 2017 10:30:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C490428490 for ; Tue, 11 Apr 2017 10:30:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B949A2854F; Tue, 11 Apr 2017 10:30:39 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4521E2854E for ; Tue, 11 Apr 2017 10:30:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754343AbdDKK3P (ORCPT ); Tue, 11 Apr 2017 06:29:15 -0400 Received: from mail.ginzinger.com ([31.193.165.229]:1572 "EHLO mail.ginzinger.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754142AbdDKK2d (ORCPT ); Tue, 11 Apr 2017 06:28:33 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.ginzinger.com (Postfix) with ESMTP id 056383E07; Tue, 11 Apr 2017 12:28:23 +0200 (CEST) X-Virus-Scanned: by amavisd-new-2.10.1 (20141025) (Debian) at ginzinger.com Received: from mail.ginzinger.com ([127.0.0.1]) by localhost (mail.ginzinger.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UWH0GlelY5U8; Tue, 11 Apr 2017 12:28:21 +0200 (CEST) Received: from mail.ginzinger.com (unknown [10.1.1.201]) by mail.ginzinger.com (Postfix) with ESMTPS id 33F23AB8; Tue, 11 Apr 2017 12:28:21 +0200 (CEST) Received: from martin-laptop.buero.ginzinger.com (10.10.1.120) by exc2.buero.ginzinger.com (10.1.1.201) with Microsoft SMTP Server (TLS) id 14.3.339.0; Tue, 11 Apr 2017 12:28:22 +0200 From: Martin Kepplinger To: , CC: , , , , Martin Kepplinger Subject: [PATCH 1/3] input: touchscreen: ar1021_i2c: add support for AR1020 Date: Tue, 11 Apr 2017 12:27:57 +0200 Message-ID: <1491906479-17639-1-git-send-email-martin.kepplinger@ginzinger.com> X-Mailer: git-send-email 2.1.4 MIME-Version: 1.0 X-Originating-IP: [10.10.1.120] Sender: linux-input-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP ar1021_i2c simply also supports the ar1020 device we use. This is tested. They also share the same datasheet: http://ww1.microchip.com/downloads/en/DeviceDoc/40001393C.pdf We differentiate not only to make it obvious that we support both devices, but also to be able to implement the few model specific things in the future. Signed-off-by: Martin Kepplinger --- drivers/input/touchscreen/Kconfig | 4 ++-- drivers/input/touchscreen/ar1021_i2c.c | 13 ++++++++++--- 2 files changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 33c62e5..535b91a 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -96,8 +96,8 @@ config TOUCHSCREEN_AR1021_I2C tristate "Microchip AR1021 i2c touchscreen" depends on I2C && OF help - Say Y here if you have the Microchip AR1021 touchscreen controller - chip in your system. + Say Y here if you have the Microchip AR1020 or AR1021 touchscreen + controller chip in your system. If unsure, say N. diff --git a/drivers/input/touchscreen/ar1021_i2c.c b/drivers/input/touchscreen/ar1021_i2c.c index 6562b17..1767257 100644 --- a/drivers/input/touchscreen/ar1021_i2c.c +++ b/drivers/input/touchscreen/ar1021_i2c.c @@ -1,5 +1,5 @@ /* - * Microchip AR1021 driver for I2C + * Microchip AR1020 and AR1021 driver for I2C * * Author: Christian Gmeiner * @@ -24,6 +24,11 @@ struct ar1021_i2c { u8 data[AR1021_TOCUH_PKG_SIZE]; }; +enum { + ar1021, + ar1020, +}; + static irqreturn_t ar1021_i2c_irq(int irq, void *dev_id) { struct ar1021_i2c *ar1021 = dev_id; @@ -151,13 +156,15 @@ static int __maybe_unused ar1021_i2c_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(ar1021_i2c_pm, ar1021_i2c_suspend, ar1021_i2c_resume); static const struct i2c_device_id ar1021_i2c_id[] = { - { "MICROCHIP_AR1021_I2C", 0 }, + { "MICROCHIP_AR1021_I2C", ar1021 }, + { "MICROCHIP_AR1020_I2C", ar1020 }, { }, }; MODULE_DEVICE_TABLE(i2c, ar1021_i2c_id); static const struct of_device_id ar1021_i2c_of_match[] = { { .compatible = "microchip,ar1021-i2c", }, + { .compatible = "microchip,ar1020-i2c", }, { } }; MODULE_DEVICE_TABLE(of, ar1021_i2c_of_match); @@ -175,5 +182,5 @@ static struct i2c_driver ar1021_i2c_driver = { module_i2c_driver(ar1021_i2c_driver); MODULE_AUTHOR("Christian Gmeiner "); -MODULE_DESCRIPTION("Microchip AR1021 I2C Driver"); +MODULE_DESCRIPTION("Microchip AR1020 and AR1021 I2C Driver"); MODULE_LICENSE("GPL");