From patchwork Sun Feb 3 11:10:11 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 2086191 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 4398F3FD56 for ; Sun, 3 Feb 2013 11:13:25 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U1xTd-0004Io-T3; Sun, 03 Feb 2013 11:11:13 +0000 Received: from mail.free-electrons.com ([94.23.35.102]) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1U1xTU-0004Gn-Ub for linux-arm-kernel@lists.infradead.org; Sun, 03 Feb 2013 11:11:06 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id EE7337C5; Sun, 3 Feb 2013 12:11:03 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on mail.free-electrons.com X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT shortcircuit=ham autolearn=disabled version=3.3.2 Received: from localhost (unknown [37.160.60.22]) by mail.free-electrons.com (Postfix) with ESMTPSA id 39C315BD; Sun, 3 Feb 2013 12:10:47 +0100 (CET) From: Maxime Ripard To: Linus Walleij Subject: [PATCH 1/3] pinctrl: sunxi: Add of_xlate function Date: Sun, 3 Feb 2013 12:10:11 +0100 Message-Id: <1359889813-10029-2-git-send-email-maxime.ripard@free-electrons.com> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1359889813-10029-1-git-send-email-maxime.ripard@free-electrons.com> References: <1359889813-10029-1-git-send-email-maxime.ripard@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20130203_061105_101248_1C474E5B X-CRM114-Status: GOOD ( 11.79 ) X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Alejandro Mery , Stefan Roese , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Since the pin controller of sunxi chips is represented as a single bank in the driver. Since this is neither convenient nor represented that way in the datasheets, define a custom of_xlate function with the layout Signed-off-by: Maxime Ripard --- drivers/pinctrl/pinctrl-sunxi.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c index e4d32c6..80b11e3 100644 --- a/drivers/pinctrl/pinctrl-sunxi.c +++ b/drivers/pinctrl/pinctrl-sunxi.c @@ -1261,6 +1261,24 @@ static void sunxi_pinctrl_gpio_set(struct gpio_chip *chip, writel((value & DATA_PINS_MASK) << index, pctl->membase + reg); } +static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc, + const struct of_phandle_args *gpiospec, + u32 *flags) +{ + int pin, base; + + base = PINS_PER_BANK * gpiospec->args[0]; + pin = base + gpiospec->args[1]; + + if (pin > (gc->base + gc->ngpio)) + return -EINVAL; + + if (flags) + *flags = gpiospec->args[2]; + + return pin; +} + static struct gpio_chip sunxi_pinctrl_gpio_chip = { .owner = THIS_MODULE, .request = sunxi_pinctrl_gpio_request, @@ -1269,6 +1287,8 @@ static struct gpio_chip sunxi_pinctrl_gpio_chip = { .direction_output = sunxi_pinctrl_gpio_direction_output, .get = sunxi_pinctrl_gpio_get, .set = sunxi_pinctrl_gpio_set, + .of_xlate = sunxi_pinctrl_gpio_of_xlate, + .of_gpio_n_cells = 3, .can_sleep = 0, };