From patchwork Fri Nov 16 22:57:32 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shreeya Patel X-Patchwork-Id: 10687111 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 D39BA13B5 for ; Fri, 16 Nov 2018 22:57:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA4842CEF6 for ; Fri, 16 Nov 2018 22:57:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AD1D92CEF8; Fri, 16 Nov 2018 22:57:44 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham 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 27A572CEF6 for ; Fri, 16 Nov 2018 22:57:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728043AbeKQJLy (ORCPT ); Sat, 17 Nov 2018 04:11:54 -0500 Received: from mail-pl1-f196.google.com ([209.85.214.196]:38674 "EHLO mail-pl1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725995AbeKQJLy (ORCPT ); Sat, 17 Nov 2018 04:11:54 -0500 Received: by mail-pl1-f196.google.com with SMTP id e5so1772638plb.5; Fri, 16 Nov 2018 14:57:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id; bh=zNs2xBlZTXJMas/ITpZ31ZhslFUYpV/Egqz6U1dNoRs=; b=AiF+uM5iSK+i5Ybez9CbgCfedUkPQxXfIHeWLPZPDZbNRg46tFoX5p11nW4xN9rm68 fMisNWkqd6ZfFhbWuzEEKmoUo1t6BsTkWbJYL8QMhIq+Z4BO+YrMwOI3WspseyvIy2Nn MAPQ02oNvvdjD6pluaMsmsKv6b3pCtbyPFiREw7mHMiar4qUGJKx1b8eKNmvOd7rFxve 4rc49Fj5lDjwy/yVkF+v5zEvYSseh30nvZ4A9vrzke7nhMi7WIbsPLgk3I4NBSBYwf/L lV39wGVbg+yPYvAmsH1B6s9A+h3vaPfdvLmYupVhaMU9NdnQDTF+P4R32WuaboULmIEs s01A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id; bh=zNs2xBlZTXJMas/ITpZ31ZhslFUYpV/Egqz6U1dNoRs=; b=RzC+vR3La307UUOWJu8kCHhC8SG+OACYRRIuwE/RFZwkI1OcwUc+GVa/5AWVCHiy+v Abn8k5baUCBhnRF7YF1VDhKRU2+m27RVXYrDxrK8BgByxV3ud+0X1PNCp8kfzlh8PZCg ugPGUodBvz28T0erAAppx+lmz8zFs6sgsPSMS3ZzGubOXEnOQgdVaprRHEzPT7pBgqGQ 0hVBGKg0XXoAMfIG3d/pbf9aLFBwkS0OwU4bAHHKVK5PG08bu7X4xcWPuIbDQq/EGUHg dappic9QadFAspxc9HG1ztsIWF5Th9jhchAxwANYKiy2JkR7/QsTbo9xmWTAudxvK4Bg yYGw== X-Gm-Message-State: AA+aEWZRN48w2ZwHRGjc1eAzGilzuD06E6Mpb2T8YTda1J9lx1d7cjyx eP9Oy5ym7QFzJFXGCwMdsMU= X-Google-Smtp-Source: AFSGD/UDjI9jweK8d1XWCdKp0ehNYdtxmWaSQH/YO1r8y2He1fUV2uUwdtkkwfSWwokmF+ocin6VQA== X-Received: by 2002:a17:902:8ec9:: with SMTP id x9mr839145plo.27.1542409057583; Fri, 16 Nov 2018 14:57:37 -0800 (PST) Received: from localhost.localdomain ([103.212.140.154]) by smtp.gmail.com with ESMTPSA id 137-v6sm35425004pfz.103.2018.11.16.14.57.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Nov 2018 14:57:37 -0800 (PST) From: Shreeya Patel To: lars@metafoo.de, Michael.Hennerich@analog.com, jic23@kernel.org, knaack.h@gmx.de, pmeerw@pmeerw.net, gregkh@linuxfoundation.org, linux-iio@vger.kernel.org, devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/7] Staging: iio: adt7316: Use device tree data to set ldac_pin Date: Sat, 17 Nov 2018 04:27:32 +0530 Message-Id: <20181116225732.24823-1-shreeya.patel23498@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Make the driver use device tree instead of the platform data. Hence, use devm_gpiod_get_optional function to get the data from device tree for ldac-pin and accordingly make the needed changes in the driver. Signed-off-by: Shreeya Patel --- drivers/staging/iio/addac/adt7316.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c index 3f22d1088713..deb2f7b40f60 100644 --- a/drivers/staging/iio/addac/adt7316.c +++ b/drivers/staging/iio/addac/adt7316.c @@ -177,7 +177,7 @@ struct adt7316_chip_info { struct adt7316_bus bus; - u16 ldac_pin; + struct gpio_desc *ldac_pin; u16 int_mask; /* 0x2f */ u8 config1; u8 config2; @@ -950,8 +950,8 @@ static ssize_t adt7316_store_update_DAC(struct device *dev, if (ret) return -EIO; } else { - gpio_set_value(chip->ldac_pin, 0); - gpio_set_value(chip->ldac_pin, 1); + gpiod_set_value(chip->ldac_pin, 0); + gpiod_set_value(chip->ldac_pin, 1); } return len; @@ -2120,7 +2120,13 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus, else return -ENODEV; - chip->ldac_pin = adt7316_platform_data[1]; + chip->ldac_pin = devm_gpiod_get_optional(dev, "ldac", GPIOD_OUT_LOW); + if (IS_ERR(chip->ldac_pin)) { + ret = PTR_ERR(chip->ldac_pin); + dev_err(dev, "Failed to request ldac GPIO: %d\n", ret); + return ret; + } + if (chip->ldac_pin) { chip->config3 |= ADT7316_DA_EN_VIA_DAC_LDCA; if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX)