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=-8.7 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 1D457C43613 for ; Thu, 20 Jun 2019 18:31:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0715E20665 for ; Thu, 20 Jun 2019 18:31:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726894AbfFTSav (ORCPT ); Thu, 20 Jun 2019 14:30:51 -0400 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:56473 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726579AbfFTSat (ORCPT ); Thu, 20 Jun 2019 14:30:49 -0400 X-Originating-IP: 90.65.161.137 Received: from localhost (lfbn-1-1545-137.w90-65.abo.wanadoo.fr [90.65.161.137]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id E774CE0006; Thu, 20 Jun 2019 18:30:45 +0000 (UTC) From: Alexandre Belloni To: Linus Walleij Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, Alexandre Belloni Subject: [PATCH 2/2] pinctrl: ocelot: fix pinmuxing for pins after 31 Date: Thu, 20 Jun 2019 20:30:37 +0200 Message-Id: <20190620183037.29652-2-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190620183037.29652-1-alexandre.belloni@bootlin.com> References: <20190620183037.29652-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org The actual layout for OCELOT_GPIO_ALT[01] when there are more than 32 pins is interleaved, i.e. OCELOT_GPIO_ALT0[0], OCELOT_GPIO_ALT1[0], OCELOT_GPIO_ALT0[1], OCELOT_GPIO_ALT1[1]. Introduce a new REG_ALT macro to facilitate the register offset calculation and use it where necessary. Fixes: da801ab56ad8 pinctrl: ocelot: add MSCC Jaguar2 support Signed-off-by: Alexandre Belloni --- drivers/pinctrl/pinctrl-ocelot.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c index d2478db975bd..fb76fb2e9ea5 100644 --- a/drivers/pinctrl/pinctrl-ocelot.c +++ b/drivers/pinctrl/pinctrl-ocelot.c @@ -396,7 +396,7 @@ static int ocelot_pin_function_idx(struct ocelot_pinctrl *info, return -1; } -#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32))) +#define REG_ALT(msb, info, p) (OCELOT_GPIO_ALT0 * (info)->stride + 4 * ((msb) + ((info)->stride * ((p) / 32)))) static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned int selector, unsigned int group) @@ -412,19 +412,21 @@ static int ocelot_pinmux_set_mux(struct pinctrl_dev *pctldev, /* * f is encoded on two bits. - * bit 0 of f goes in BIT(pin) of ALT0, bit 1 of f goes in BIT(pin) of - * ALT1 + * bit 0 of f goes in BIT(pin) of ALT[0], bit 1 of f goes in BIT(pin) of + * ALT[1] * This is racy because both registers can't be updated at the same time * but it doesn't matter much for now. */ - regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, pin->pin), + regmap_update_bits(info->map, REG_ALT(0, info, pin->pin), BIT(p), f << p); - regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, pin->pin), + regmap_update_bits(info->map, REG_ALT(1, info, pin->pin), BIT(p), f << (p - 1)); return 0; } +#define REG(r, info, p) ((r) * (info)->stride + (4 * ((p) / 32))) + static int ocelot_gpio_set_direction(struct pinctrl_dev *pctldev, struct pinctrl_gpio_range *range, unsigned int pin, bool input) @@ -445,9 +447,9 @@ static int ocelot_gpio_request_enable(struct pinctrl_dev *pctldev, struct ocelot_pinctrl *info = pinctrl_dev_get_drvdata(pctldev); unsigned int p = offset % 32; - regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT0, info, offset), + regmap_update_bits(info->map, REG_ALT(0, info, offset), BIT(p), 0); - regmap_update_bits(info->map, REG(OCELOT_GPIO_ALT1, info, offset), + regmap_update_bits(info->map, REG_ALT(1, info, offset), BIT(p), 0); return 0; -- 2.21.0