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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 EDDC4C432C0 for ; Thu, 28 Nov 2019 15:55:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C5A8821771 for ; Thu, 28 Nov 2019 15:55:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726822AbfK1Pyy (ORCPT ); Thu, 28 Nov 2019 10:54:54 -0500 Received: from relay2-d.mail.gandi.net ([217.70.183.194]:49699 "EHLO relay2-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726726AbfK1Pyx (ORCPT ); Thu, 28 Nov 2019 10:54:53 -0500 X-Originating-IP: 90.76.211.102 Received: from localhost.localdomain (lfbn-1-2154-102.w90-76.abo.wanadoo.fr [90.76.211.102]) (Authenticated sender: paul.kocialkowski@bootlin.com) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id CAA5E40021; Thu, 28 Nov 2019 15:54:50 +0000 (UTC) From: Paul Kocialkowski To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Linus Walleij , Bartosz Golaszewski , Rob Herring , Mark Rutland , Lee Jones , Thomas Petazzoni , Paul Kocialkowski Subject: [PATCH v4 3/5] gpio: syscon: Add support for a custom get operation Date: Thu, 28 Nov 2019 16:54:36 +0100 Message-Id: <20191128155438.325738-4-paul.kocialkowski@bootlin.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191128155438.325738-1-paul.kocialkowski@bootlin.com> References: <20191128155438.325738-1-paul.kocialkowski@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Some drivers might need a custom get operation to match custom behavior implemented in the set operation. Add plumbing for supporting that. Signed-off-by: Paul Kocialkowski --- drivers/gpio/gpio-syscon.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-syscon.c b/drivers/gpio/gpio-syscon.c index 31f332074d7d..36136b7f3a3b 100644 --- a/drivers/gpio/gpio-syscon.c +++ b/drivers/gpio/gpio-syscon.c @@ -43,6 +43,7 @@ struct syscon_gpio_data { unsigned int bit_count; unsigned int dat_bit_offset; unsigned int dir_bit_offset; + int (*get)(struct gpio_chip *chip, unsigned offset); void (*set)(struct gpio_chip *chip, unsigned offset, int value); }; @@ -252,7 +253,7 @@ static int syscon_gpio_probe(struct platform_device *pdev) priv->chip.label = dev_name(dev); priv->chip.base = -1; priv->chip.ngpio = priv->data->bit_count; - priv->chip.get = syscon_gpio_get; + priv->chip.get = priv->data->get ? : syscon_gpio_get; if (priv->data->flags & GPIO_SYSCON_FEAT_IN) priv->chip.direction_input = syscon_gpio_dir_in; if (priv->data->flags & GPIO_SYSCON_FEAT_OUT) { -- 2.24.0