From patchwork Fri Oct 29 12:44:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 12592639 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C8E11C4167B for ; Fri, 29 Oct 2021 12:44:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B8CB76115B for ; Fri, 29 Oct 2021 12:44:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231732AbhJ2MrW (ORCPT ); Fri, 29 Oct 2021 08:47:22 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:14605 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S231695AbhJ2MrU (ORCPT ); Fri, 29 Oct 2021 08:47:20 -0400 X-IronPort-AV: E=Sophos;i="5.87,192,1631545200"; d="scan'208";a="98894441" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 29 Oct 2021 21:44:51 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 5FC39438EE72; Fri, 29 Oct 2021 21:44:49 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Linus Walleij , Rob Herring , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH v2 3/5] pinctrl: renesas: pinctrl-rzg2l: Add support to get/set pin config for GPIO port pins Date: Fri, 29 Oct 2021 13:44:35 +0100 Message-Id: <20211029124437.20721-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20211029124437.20721-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20211029124437.20721-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add support to get/set pin config for GPIO port pins. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das --- drivers/pinctrl/renesas/pinctrl-rzg2l.c | 33 +++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index f294ae7b8b5a..bc34c63bbb36 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -426,6 +426,23 @@ static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev, return ret; } +static int rzg2l_validate_gpio_pin(struct rzg2l_pinctrl *pctrl, + u32 cfg, u32 port, u8 bit) +{ + u8 pincount = RZG2L_GPIO_PORT_GET_PINCNT(cfg); + u32 port_index = RZG2L_GPIO_PORT_GET_INDEX(cfg); + u32 data; + + if (bit >= pincount || port >= pctrl->data->n_port_pins) + return -EINVAL; + + data = pctrl->data->port_pin_configs[port]; + if (port_index != RZG2L_GPIO_PORT_GET_INDEX(data)) + return -EINVAL; + + return 0; +} + static u32 rzg2l_read_pin_config(struct rzg2l_pinctrl *pctrl, bool port_pin, u32 offset, u8 bit, u32 mask) { @@ -495,6 +512,14 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, port = RZG2L_SINGLE_PIN_GET_PORT(*pin_data); cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data); bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data); + } else { + cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data); + port = RZG2L_PIN_ID_TO_PORT(_pin); + bit = RZG2L_PIN_ID_TO_PIN(_pin); + port_pin = true; + + if (rzg2l_validate_gpio_pin(pctrl, *pin_data, port, bit)) + return -EINVAL; } switch (param) { @@ -557,6 +582,14 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, port = RZG2L_SINGLE_PIN_GET_PORT(*pin_data); cfg = RZG2L_SINGLE_PIN_GET_CFGS(*pin_data); bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data); + } else { + cfg = RZG2L_GPIO_PORT_GET_CFGS(*pin_data); + port = RZG2L_PIN_ID_TO_PORT(_pin); + bit = RZG2L_PIN_ID_TO_PIN(_pin); + port_pin = true; + + if (rzg2l_validate_gpio_pin(pctrl, *pin_data, port, bit)) + return -EINVAL; } for (i = 0; i < num_configs; i++) {