From patchwork Tue Nov 28 13:25:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 170789 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:ce62:0:b0:403:3b70:6f57 with SMTP id o2csp3925514vqx; Tue, 28 Nov 2023 05:39:18 -0800 (PST) X-Google-Smtp-Source: AGHT+IE/Orc4oDY/RF0AWyuF3bTGuO9VBJyS7fl+bQH0lJXbgZIvETbDxjLYY5LZatZtazpUpCZz X-Received: by 2002:a05:6a20:3d8b:b0:18c:41cd:c774 with SMTP id s11-20020a056a203d8b00b0018c41cdc774mr10858721pzi.1.1701178758155; Tue, 28 Nov 2023 05:39:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1701178758; cv=none; d=google.com; s=arc-20160816; b=S4rW5gsczlo7Hae79UN1ccFsuIcSmYK1E1sHHKGpLa1uQToSrdw4Tv9mSomvBZwiqN hmftE2+62WRJvCXvg9JtIo2lZA/DMqArr3iyjQg5PYwrPEt2t3B4f1GB2bl8eMQwhdG9 H0L8ozXoW4oNPHGf3c1bU14snXikikD4fgGC5v8kjyQgdVhLWx9TwMXlG3nMU/7INjAj gkjv0inWVV/GH5DnZ5SwDU5AjtIGrnibtrK3c6EupZroJoK5rKaomN3zwGt4KFyVAQT2 o45QvjBniYGvhzqUijdymhklqXkSY0z2pz7Qj4sn/CQzgWQLB0Yb6ZmfdcQaaEUswbVT DLcw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=iz5RkQI72ReqQg+DnAWOxEWoMh6xNEzC8hBZwSS9GQA=; fh=uku+KBcSBcFp2fEL9QwZN6TXmwY0Y7a4DjuIywlWVtw=; b=LFB2gWh0nBz/1+7kr31yKApX+lFE9KWpqivyi/doiHlUGslNXVCaP7+WZTU7lsa150 0tIiGrnAaocIdFIERyFF06JgXkt84tTFtMnvWaoprzM3vzzBK36eC47fj0DUgHeF+499 OseGpyWw3T949x4rNK02vcJ+SmWq12BwzybnJIv34UOTlzBsTxWw0wvnhf24kjG4OV+f 8YeyNtEG5/LRm49SknKZAIxJv+QG1ZOHnXCoeVMkVVvJxJ6KeiPXRZR5uQFqGNDO0eL3 VtN4drNZCnE/SF1vTM8ZipSk6A/6PCQbBJLgRvzVP91RXBmjCnQh4Ab7mll0E9LV8D1t hxIA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@bootlin.com header.s=gm1 header.b=ZQzrWe8g; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=bootlin.com Received: from snail.vger.email (snail.vger.email. [23.128.96.37]) by mx.google.com with ESMTPS id d16-20020a056a0010d000b006cbd3ab255bsi12610367pfu.61.2023.11.28.05.39.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 Nov 2023 05:39:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) client-ip=23.128.96.37; Authentication-Results: mx.google.com; dkim=pass header.i=@bootlin.com header.s=gm1 header.b=ZQzrWe8g; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.37 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=bootlin.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by snail.vger.email (Postfix) with ESMTP id 6DBFF80486A0; Tue, 28 Nov 2023 05:39:15 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at snail.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344780AbjK1Niv (ORCPT + 99 others); Tue, 28 Nov 2023 08:38:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345262AbjK1NZj (ORCPT ); Tue, 28 Nov 2023 08:25:39 -0500 Received: from relay3-d.mail.gandi.net (relay3-d.mail.gandi.net [217.70.183.195]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 089A0D6D; Tue, 28 Nov 2023 05:25:43 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPA id BE2D360012; Tue, 28 Nov 2023 13:25:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1701177942; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iz5RkQI72ReqQg+DnAWOxEWoMh6xNEzC8hBZwSS9GQA=; b=ZQzrWe8grm7HQDIiCcz/o/Iw64VgEQ7+jUKqjTnKLVQC7RH6LKSRnD6fCJcGdLCM/JAdtQ C/11yG7c46rdTq+Anwqya9fND79XFiYZebR1FBlgriF3yQdbEN6XIIGY9Abp6e4fgZ7+qL gi2uC32B8cAA5hb1iKHMhGzXlkrdYhkm5btt/5+/x2G5pU8WHYjJpAF5nHZTNdzz7hKUQt VYUd0b+YcsLHK6oPDMwARW8qMUj0FiNE087NYJ/rae7iGeqg7hB534gFMFc1KLGbKCxHPO RpzVTPZMXLmg0YsU8Fl5sOBA9rr/nVPo9bBj3thaVydfVEsmdQ8UBjyuevclgA== From: Herve Codina To: Herve Codina , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lee Jones , Linus Walleij , Liam Girdwood , Mark Brown Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Christophe Leroy , Thomas Petazzoni Subject: [PATCH 4/5] pinctrl: Add support for the Lantic PEF2256 pinmux Date: Tue, 28 Nov 2023 14:25:33 +0100 Message-ID: <20231128132534.258459-5-herve.codina@bootlin.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231128132534.258459-1-herve.codina@bootlin.com> References: <20231128132534.258459-1-herve.codina@bootlin.com> MIME-Version: 1.0 X-GND-Sasl: herve.codina@bootlin.com X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (snail.vger.email [0.0.0.0]); Tue, 28 Nov 2023 05:39:15 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783815217210125984 X-GMAIL-MSGID: 1783815217210125984 The Lantiq PEF2256 is a framer and line interface component designed to fulfill all required interfacing between an analog E1/T1/J1 line and the digital PCM system highway/H.100 bus. This kind of component can be found in old telecommunication system. It was used to digital transmission of many simultaneous telephone calls by time-division multiplexing. Also using HDLC protocol, WAN networks can be reached through the framer. This pinmux support handles the pin muxing part (pins RP(A..D) and pins XP(A..D)) of the PEF2256. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy Reviewed-by: Linus Walleij --- drivers/pinctrl/Kconfig | 15 ++ drivers/pinctrl/Makefile | 1 + drivers/pinctrl/pinctrl-pef2256.c | 358 ++++++++++++++++++++++++++++++ 3 files changed, 374 insertions(+) create mode 100644 drivers/pinctrl/pinctrl-pef2256.c diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 1de4e1edede0..b11144bb448c 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -366,6 +366,21 @@ config PINCTRL_PALMAS open drain configuration for the Palmas series devices like TPS65913, TPS80036 etc. +config PINCTRL_PEF2256 + tristate "Lantiq PEF2256 (FALC56) pin controller driver" + depends on OF && FRAMER_PEF2256 + select PINMUX + select PINCONF + select GENERIC_PINCONF + help + This option enables the pin controller support for the Lantiq PEF2256 + framer, also known as FALC56. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called pinctrl-pef2256. + config PINCTRL_PIC32 bool "Microchip PIC32 pin controller driver" depends on OF diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 37575deb7a69..7ac5d59c83e7 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_PINCTRL_MICROCHIP_SGPIO) += pinctrl-microchip-sgpio.o obj-$(CONFIG_PINCTRL_MLXBF3) += pinctrl-mlxbf3.o obj-$(CONFIG_PINCTRL_OCELOT) += pinctrl-ocelot.o obj-$(CONFIG_PINCTRL_PALMAS) += pinctrl-palmas.o +obj-$(CONFIG_PINCTRL_PEF2256) += pinctrl-pef2256.o obj-$(CONFIG_PINCTRL_PIC32) += pinctrl-pic32.o obj-$(CONFIG_PINCTRL_PISTACHIO) += pinctrl-pistachio.o obj-$(CONFIG_PINCTRL_RK805) += pinctrl-rk805.o diff --git a/drivers/pinctrl/pinctrl-pef2256.c b/drivers/pinctrl/pinctrl-pef2256.c new file mode 100644 index 000000000000..868ea33bec3c --- /dev/null +++ b/drivers/pinctrl/pinctrl-pef2256.c @@ -0,0 +1,358 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * PEF2256 also known as FALC56 driver + * + * Copyright 2023 CS GROUP France + * + * Author: Herve Codina + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Port Configuration 1..4 */ +#define PEF2256_PC1 0x80 +#define PEF2256_PC2 0x81 +#define PEF2256_PC3 0x82 +#define PEF2256_PC4 0x83 +#define PEF2256_12_PC_RPC_MASK GENMASK(6, 4) +#define PEF2256_12_PC_RPC_SYPR FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x0) +#define PEF2256_12_PC_RPC_RFM FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x1) +#define PEF2256_12_PC_RPC_RFMB FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x2) +#define PEF2256_12_PC_RPC_RSIGM FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x3) +#define PEF2256_12_PC_RPC_RSIG FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x4) +#define PEF2256_12_PC_RPC_DLR FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x5) +#define PEF2256_12_PC_RPC_FREEZE FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x6) +#define PEF2256_12_PC_RPC_RFSP FIELD_PREP_CONST(PEF2256_12_PC_RPC_MASK, 0x7) +#define PEF2256_12_PC_XPC_MASK GENMASK(4, 0) +#define PEF2256_12_PC_XPC_SYPX FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x0) +#define PEF2256_12_PC_XPC_XFMS FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x1) +#define PEF2256_12_PC_XPC_XSIG FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x2) +#define PEF2256_12_PC_XPC_TCLK FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x3) +#define PEF2256_12_PC_XPC_XMFB FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x4) +#define PEF2256_12_PC_XPC_XSIGM FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x5) +#define PEF2256_12_PC_XPC_DLX FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x6) +#define PEF2256_12_PC_XPC_XCLK FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x7) +#define PEF2256_12_PC_XPC_XLT FIELD_PREP_CONST(PEF2256_12_PC_XPC_MASK, 0x8) +#define PEF2256_2X_PC_RPC_MASK GENMASK(7, 4) +#define PEF2256_2X_PC_RPC_SYPR FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x0) +#define PEF2256_2X_PC_RPC_RFM FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x1) +#define PEF2256_2X_PC_RPC_RFMB FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x2) +#define PEF2256_2X_PC_RPC_RSIGM FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x3) +#define PEF2256_2X_PC_RPC_RSIG FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x4) +#define PEF2256_2X_PC_RPC_DLR FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x5) +#define PEF2256_2X_PC_RPC_FREEZE FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x6) +#define PEF2256_2X_PC_RPC_RFSP FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x7) +#define PEF2256_2X_PC_RPC_GPI FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0x9) +#define PEF2256_2X_PC_RPC_GPOH FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xa) +#define PEF2256_2X_PC_RPC_GPOL FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xb) +#define PEF2256_2X_PC_RPC_LOS FIELD_PREP_CONST(PEF2256_2X_PC_RPC_MASK, 0xc) +#define PEF2256_2X_PC_XPC_MASK GENMASK(3, 0) +#define PEF2256_2X_PC_XPC_SYPX FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x0) +#define PEF2256_2X_PC_XPC_XFMS FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x1) +#define PEF2256_2X_PC_XPC_XSIG FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x2) +#define PEF2256_2X_PC_XPC_TCLK FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x3) +#define PEF2256_2X_PC_XPC_XMFB FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x4) +#define PEF2256_2X_PC_XPC_XSIGM FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x5) +#define PEF2256_2X_PC_XPC_DLX FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x6) +#define PEF2256_2X_PC_XPC_XCLK FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x7) +#define PEF2256_2X_PC_XPC_XLT FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x8) +#define PEF2256_2X_PC_XPC_GPI FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0x9) +#define PEF2256_2X_PC_XPC_GPOH FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0xa) +#define PEF2256_2X_PC_XPC_GPOL FIELD_PREP_CONST(PEF2256_2X_PC_XPC_MASK, 0xb) + +struct pef2256_pinreg_desc { + int offset; + u8 mask; +}; + +struct pef2256_function_desc { + const char *name; + const char * const*groups; + unsigned int ngroups; + u8 func_val; +}; + +struct pef2256_pinctrl { + struct device *dev; + struct regmap *regmap; + enum pef2256_version version; + struct pinctrl_desc pctrl_desc; + const struct pef2256_function_desc *functions; + unsigned int nfunctions; +}; + +static int pef2256_get_groups_count(struct pinctrl_dev *pctldev) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + /* We map 1 group <-> 1 pin */ + return pef2256->pctrl_desc.npins; +} + +static const char *pef2256_get_group_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + /* We map 1 group <-> 1 pin */ + return pef2256->pctrl_desc.pins[selector].name; +} + +static int pef2256_get_group_pins(struct pinctrl_dev *pctldev, unsigned int selector, + const unsigned int **pins, + unsigned int *num_pins) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + /* We map 1 group <-> 1 pin */ + *pins = &pef2256->pctrl_desc.pins[selector].number; + *num_pins = 1; + + return 0; +} + +static const struct pinctrl_ops pef2256_pctlops = { + .get_groups_count = pef2256_get_groups_count, + .get_group_name = pef2256_get_group_name, + .get_group_pins = pef2256_get_group_pins, + .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, + .dt_free_map = pinconf_generic_dt_free_map, +}; + +static int pef2256_get_functions_count(struct pinctrl_dev *pctldev) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + return pef2256->nfunctions; +} + +static const char *pef2256_get_function_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + return pef2256->functions[selector].name; +} + +static int pef2256_get_function_groups(struct pinctrl_dev *pctldev, unsigned int selector, + const char * const **groups, + unsigned * const num_groups) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + + *groups = pef2256->functions[selector].groups; + *num_groups = pef2256->functions[selector].ngroups; + return 0; +} + +static int pef2256_set_mux(struct pinctrl_dev *pctldev, unsigned int func_selector, + unsigned int group_selector) +{ + struct pef2256_pinctrl *pef2256 = pinctrl_dev_get_drvdata(pctldev); + const struct pef2256_pinreg_desc *pinreg_desc; + u8 func_val; + + /* We map 1 group <-> 1 pin */ + pinreg_desc = pef2256->pctrl_desc.pins[group_selector].drv_data; + func_val = pef2256->functions[func_selector].func_val; + + return regmap_update_bits(pef2256->regmap, pinreg_desc->offset, + pinreg_desc->mask, func_val); +} + +static const struct pinmux_ops pef2256_pmxops = { + .get_functions_count = pef2256_get_functions_count, + .get_function_name = pef2256_get_function_name, + .get_function_groups = pef2256_get_function_groups, + .set_mux = pef2256_set_mux, +}; + +#define PEF2256_PINCTRL_PIN(_number, _name, _offset, _mask) { \ + .number = _number, \ + .name = _name, \ + .drv_data = &(struct pef2256_pinreg_desc) { \ + .offset = _offset, \ + .mask = _mask, \ + }, \ +} + +static const struct pinctrl_pin_desc pef2256_v12_pins[] = { + PEF2256_PINCTRL_PIN(0, "RPA", PEF2256_PC1, PEF2256_12_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(1, "RPB", PEF2256_PC2, PEF2256_12_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(2, "RPC", PEF2256_PC3, PEF2256_12_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(3, "RPD", PEF2256_PC4, PEF2256_12_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(4, "XPA", PEF2256_PC1, PEF2256_12_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(5, "XPB", PEF2256_PC2, PEF2256_12_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(6, "XPC", PEF2256_PC3, PEF2256_12_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(7, "XPD", PEF2256_PC4, PEF2256_12_PC_XPC_MASK), +}; + +static const struct pinctrl_pin_desc pef2256_v2x_pins[] = { + PEF2256_PINCTRL_PIN(0, "RPA", PEF2256_PC1, PEF2256_2X_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(1, "RPB", PEF2256_PC2, PEF2256_2X_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(2, "RPC", PEF2256_PC3, PEF2256_2X_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(3, "RPD", PEF2256_PC4, PEF2256_2X_PC_RPC_MASK), + PEF2256_PINCTRL_PIN(4, "XPA", PEF2256_PC1, PEF2256_2X_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(5, "XPB", PEF2256_PC2, PEF2256_2X_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(6, "XPC", PEF2256_PC3, PEF2256_2X_PC_XPC_MASK), + PEF2256_PINCTRL_PIN(7, "XPD", PEF2256_PC4, PEF2256_2X_PC_XPC_MASK), +}; + +static const char *const pef2256_rp_groups[] = { "RPA", "RPB", "RPC", "RPD" }; +static const char *const pef2256_xp_groups[] = { "XPA", "XPB", "XPC", "XPD" }; +static const char *const pef2256_all_groups[] = { "RPA", "RPB", "RPC", "RPD", + "XPA", "XPB", "XPC", "XPD" }; + +#define PEF2256_FUNCTION(_name, _func_val, _groups) { \ + .name = _name, \ + .groups = _groups, \ + .ngroups = ARRAY_SIZE(_groups), \ + .func_val = _func_val, \ +} + +static const struct pef2256_function_desc pef2256_v2x_functions[] = { + PEF2256_FUNCTION("SYPR", PEF2256_2X_PC_RPC_SYPR, pef2256_rp_groups), + PEF2256_FUNCTION("RFM", PEF2256_2X_PC_RPC_RFM, pef2256_rp_groups), + PEF2256_FUNCTION("RFMB", PEF2256_2X_PC_RPC_RFMB, pef2256_rp_groups), + PEF2256_FUNCTION("RSIGM", PEF2256_2X_PC_RPC_RSIGM, pef2256_rp_groups), + PEF2256_FUNCTION("RSIG", PEF2256_2X_PC_RPC_RSIG, pef2256_rp_groups), + PEF2256_FUNCTION("DLR", PEF2256_2X_PC_RPC_DLR, pef2256_rp_groups), + PEF2256_FUNCTION("FREEZE", PEF2256_2X_PC_RPC_FREEZE, pef2256_rp_groups), + PEF2256_FUNCTION("RFSP", PEF2256_2X_PC_RPC_RFSP, pef2256_rp_groups), + PEF2256_FUNCTION("LOS", PEF2256_2X_PC_RPC_LOS, pef2256_rp_groups), + + PEF2256_FUNCTION("SYPX", PEF2256_2X_PC_XPC_SYPX, pef2256_xp_groups), + PEF2256_FUNCTION("XFMS", PEF2256_2X_PC_XPC_XFMS, pef2256_xp_groups), + PEF2256_FUNCTION("XSIG", PEF2256_2X_PC_XPC_XSIG, pef2256_xp_groups), + PEF2256_FUNCTION("TCLK", PEF2256_2X_PC_XPC_TCLK, pef2256_xp_groups), + PEF2256_FUNCTION("XMFB", PEF2256_2X_PC_XPC_XMFB, pef2256_xp_groups), + PEF2256_FUNCTION("XSIGM", PEF2256_2X_PC_XPC_XSIGM, pef2256_xp_groups), + PEF2256_FUNCTION("DLX", PEF2256_2X_PC_XPC_DLX, pef2256_xp_groups), + PEF2256_FUNCTION("XCLK", PEF2256_2X_PC_XPC_XCLK, pef2256_xp_groups), + PEF2256_FUNCTION("XLT", PEF2256_2X_PC_XPC_XLT, pef2256_xp_groups), + + PEF2256_FUNCTION("GPI", PEF2256_2X_PC_RPC_GPI | PEF2256_2X_PC_XPC_GPI, + pef2256_all_groups), + PEF2256_FUNCTION("GPOH", PEF2256_2X_PC_RPC_GPOH | PEF2256_2X_PC_XPC_GPOH, + pef2256_all_groups), + PEF2256_FUNCTION("GPOL", PEF2256_2X_PC_RPC_GPOL | PEF2256_2X_PC_XPC_GPOL, + pef2256_all_groups), +}; + +static const struct pef2256_function_desc pef2256_v12_functions[] = { + PEF2256_FUNCTION("SYPR", PEF2256_12_PC_RPC_SYPR, pef2256_rp_groups), + PEF2256_FUNCTION("RFM", PEF2256_12_PC_RPC_RFM, pef2256_rp_groups), + PEF2256_FUNCTION("RFMB", PEF2256_12_PC_RPC_RFMB, pef2256_rp_groups), + PEF2256_FUNCTION("RSIGM", PEF2256_12_PC_RPC_RSIGM, pef2256_rp_groups), + PEF2256_FUNCTION("RSIG", PEF2256_12_PC_RPC_RSIG, pef2256_rp_groups), + PEF2256_FUNCTION("DLR", PEF2256_12_PC_RPC_DLR, pef2256_rp_groups), + PEF2256_FUNCTION("FREEZE", PEF2256_12_PC_RPC_FREEZE, pef2256_rp_groups), + PEF2256_FUNCTION("RFSP", PEF2256_12_PC_RPC_RFSP, pef2256_rp_groups), + + PEF2256_FUNCTION("SYPX", PEF2256_12_PC_XPC_SYPX, pef2256_xp_groups), + PEF2256_FUNCTION("XFMS", PEF2256_12_PC_XPC_XFMS, pef2256_xp_groups), + PEF2256_FUNCTION("XSIG", PEF2256_12_PC_XPC_XSIG, pef2256_xp_groups), + PEF2256_FUNCTION("TCLK", PEF2256_12_PC_XPC_TCLK, pef2256_xp_groups), + PEF2256_FUNCTION("XMFB", PEF2256_12_PC_XPC_XMFB, pef2256_xp_groups), + PEF2256_FUNCTION("XSIGM", PEF2256_12_PC_XPC_XSIGM, pef2256_xp_groups), + PEF2256_FUNCTION("DLX", PEF2256_12_PC_XPC_DLX, pef2256_xp_groups), + PEF2256_FUNCTION("XCLK", PEF2256_12_PC_XPC_XCLK, pef2256_xp_groups), + PEF2256_FUNCTION("XLT", PEF2256_12_PC_XPC_XLT, pef2256_xp_groups), +}; + +static int pef2256_register_pinctrl(struct pef2256_pinctrl *pef2256) +{ + struct pinctrl_dev *pctrl; + + pef2256->pctrl_desc.name = dev_name(pef2256->dev); + pef2256->pctrl_desc.owner = THIS_MODULE; + pef2256->pctrl_desc.pctlops = &pef2256_pctlops; + pef2256->pctrl_desc.pmxops = &pef2256_pmxops; + if (pef2256->version == PEF2256_VERSION_1_2) { + pef2256->pctrl_desc.pins = pef2256_v12_pins; + pef2256->pctrl_desc.npins = ARRAY_SIZE(pef2256_v12_pins); + pef2256->functions = pef2256_v12_functions; + pef2256->nfunctions = ARRAY_SIZE(pef2256_v12_functions); + } else { + pef2256->pctrl_desc.pins = pef2256_v2x_pins; + pef2256->pctrl_desc.npins = ARRAY_SIZE(pef2256_v2x_pins); + pef2256->functions = pef2256_v2x_functions; + pef2256->nfunctions = ARRAY_SIZE(pef2256_v2x_functions); + } + + pctrl = devm_pinctrl_register(pef2256->dev, &pef2256->pctrl_desc, pef2256); + if (IS_ERR(pctrl)) + return dev_err_probe(pef2256->dev, PTR_ERR(pctrl), + "pinctrl driver registration failed\n"); + + return 0; +} + +static void pef2256_reset_pinmux(struct pef2256_pinctrl *pef2256) +{ + u8 val; + /* + * Reset values cannot be used. + * They define the SYPR/SYPX pin mux for all the RPx and XPx pins and + * Only one pin can be muxed to SYPR and one pin can be muxed to SYPX. + * Choose here an other reset value. + */ + if (pef2256->version == PEF2256_VERSION_1_2) + val = PEF2256_12_PC_XPC_XCLK | PEF2256_12_PC_RPC_RFSP; + else + val = PEF2256_2X_PC_XPC_GPI | PEF2256_2X_PC_RPC_GPI; + + regmap_write(pef2256->regmap, PEF2256_PC1, val); + regmap_write(pef2256->regmap, PEF2256_PC2, val); + regmap_write(pef2256->regmap, PEF2256_PC3, val); + regmap_write(pef2256->regmap, PEF2256_PC4, val); +} + +static int pef2256_pinctrl_probe(struct platform_device *pdev) +{ + struct pef2256_pinctrl *pef2256_pinctrl; + struct pef2256 *pef2256; + int ret; + + pef2256_pinctrl = devm_kzalloc(&pdev->dev, sizeof(*pef2256_pinctrl), GFP_KERNEL); + if (!pef2256_pinctrl) + return -ENOMEM; + + device_set_node(&pdev->dev, dev_fwnode(pdev->dev.parent)); + + pef2256 = dev_get_drvdata(pdev->dev.parent); + + pef2256_pinctrl->dev = &pdev->dev; + pef2256_pinctrl->regmap = pef2256_get_regmap(pef2256); + pef2256_pinctrl->version = pef2256_get_version(pef2256); + + platform_set_drvdata(pdev, pef2256_pinctrl); + + pef2256_reset_pinmux(pef2256_pinctrl); + ret = pef2256_register_pinctrl(pef2256_pinctrl); + if (ret) + return ret; + + return 0; +} + +static struct platform_driver pef2256_pinctrl_driver = { + .driver = { + .name = "lantiq-pef2256-pinctrl", + }, + .probe = pef2256_pinctrl_probe, +}; +module_platform_driver(pef2256_pinctrl_driver); + +MODULE_AUTHOR("Herve Codina "); +MODULE_DESCRIPTION("PEF2256 pin controller driver"); +MODULE_LICENSE("GPL");