From patchwork Wed Mar 3 14:23:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= X-Patchwork-Id: 12113687 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=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 8CB09C433E0 for ; Wed, 3 Mar 2021 15:25:00 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E6F9664E58 for ; Wed, 3 Mar 2021 15:24:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E6F9664E58 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Xj+fS6IIKx21MKHjyeDnHiP/8W4RuTsU6UYwwmVsks0=; b=U7g6VI/cN8uRdsh56N8HQzLwm 7hPovIiwHmGfdiBkiKzPfe6DCbF0en/NOFe2xpusU/UvOwhX2dh5k9i8wne4p8fsyqwpfjB3NkwMe 5As3F73kakfM8Md6/K8ge2ozdZD5ZOizUhHOQQ5cQ7FJcM39syDoPbSd66PcnLQtbH8xtMC3dH8m3 bd+hkoYIDGBGP24ZkdtZyUTSDbRESZQq2FZ61hbXc8KqTg/iyFNmFqA/vFNuvTuFia29Eyr1bfKEN edVvUPYmRhA74vEvduzl33cC9ouKODKilj6xwqJlPNl5Frmo7VXfo7S2E0NMPMTKmZAEPGpQudF4R e/tC3hv/g==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lHTKx-005MnV-M1; Wed, 03 Mar 2021 15:22:55 +0000 Received: from mail-wm1-x335.google.com ([2a00:1450:4864:20::335]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lHSPP-005751-Fy for linux-arm-kernel@lists.infradead.org; Wed, 03 Mar 2021 14:23:37 +0000 Received: by mail-wm1-x335.google.com with SMTP id m1so6517534wml.2 for ; Wed, 03 Mar 2021 06:23:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=uuk95K4eGIjgdY3ZU93vgvSDnmWADjnIPDDufhGuTTM=; b=cuB2oLEN+9hzEiz+UdqqFeVAw9NMbBTsv0ZN+b1VcYeKAIdqCtM3gwDTbkZR9hfWaQ kYlmfNiUrYMsdWjZkc1H7AivnqfuPqh/MamZVDhfqPdlGY7KC847JxVoH7uYia1bNwe5 LE7HdZC2fHsqkd371w0KPRpLJIXPUXPvjLxgbsjZwsiz3mqhfvRc91JqhiYQsrW85qEu 9NiwEFPoZLUBYJ5J1XCVTHmQo2uj29uJYXDrbb19nB0TkkYvP89jUKhNZNbSM2dM7IwX heCYzLUNS7qMTTYEv4qd1WRaJbQjR8u+oQnqY9zSg8sddkHAy+oa34NTC1p0cJi/OUHl R7Xg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uuk95K4eGIjgdY3ZU93vgvSDnmWADjnIPDDufhGuTTM=; b=FdApVXv0E6qqmNcR09obQGG9g4BXmxhm78ugdqtV0/wIlh6Ron2UT6dGJzSh1/1gLw PRLA2x/G+yA4tZ02B7WooDU9uJN1R2Yynvz8lW/DsTbqjbt8dqLWIVg8M3ZvBYpsb3d7 hrZLznqin+j5n/v22tbZsoguASCKNbga+S4Ylmfn8avCtYZdg89NDqAJTD5IhNmA4Y4a 363/nrFW2IPFcphbMuNtH7q82aSV+UGe45qeCaXb552GLXUBTMd92n9klnY4MMHL0ojc HeKY9nDmDhQ+Ze1FI76FWOH4cvIpq4812qCdQlGPcv5Vl+YK2MlrTYPQdwgxP1O4W6Qy IPWA== X-Gm-Message-State: AOAM53399yS3zM0AZ4k4FhWgVRmLoRFtgxbOAit0SFJBS5kr/IXIsT/8 hVfg8ym8MGvoeEjoXoQ5y80wkwIhMWl0PcXg X-Google-Smtp-Source: ABdhPJydqCYiiqj/NDovJFRnbXbCDLxeBNnLhlyXXXqifP1CE7/eT7p61Xg+dUGNGWYee1HA9f5Z1A== X-Received: by 2002:a1c:3b42:: with SMTP id i63mr9474700wma.124.1614781406104; Wed, 03 Mar 2021 06:23:26 -0800 (PST) Received: from skynet.lan (170.red-88-1-105.dynamicip.rima-tde.net. [88.1.105.170]) by smtp.gmail.com with ESMTPSA id b15sm7876219wmd.41.2021.03.03.06.23.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 03 Mar 2021 06:23:25 -0800 (PST) From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= To: Linus Walleij , Rob Herring , Michael Walle , Bartosz Golaszewski , Florian Fainelli , bcm-kernel-feedback-list@broadcom.com, Jonas Gorski , =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= , Necip Fazil Yildiran , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 14/14] pinctrl: add a pincontrol driver for BCM6318 Date: Wed, 3 Mar 2021 15:23:10 +0100 Message-Id: <20210303142310.6371-15-noltari@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210303142310.6371-1-noltari@gmail.com> References: <20210303142310.6371-1-noltari@gmail.com> MIME-Version: 1.0 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add a pincontrol driver for BCM6318. BCM6318 allows muxing most GPIOs to different functions. BCM6318 is similar to BCM6328 with the addition of a pad register, and the GPIO meaning of the mux register changes based on the GPIO number. Signed-off-by: Álvaro Fernández Rojas Signed-off-by: Jonas Gorski --- v3: use new shared code v2: switch to GPIO_REGMAP drivers/pinctrl/bcm/Kconfig | 8 + drivers/pinctrl/bcm/Makefile | 1 + drivers/pinctrl/bcm/pinctrl-bcm6318.c | 496 ++++++++++++++++++++++++++ 3 files changed, 505 insertions(+) create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm6318.c diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig index a49b788f2b0f..592f5f0724a0 100644 --- a/drivers/pinctrl/bcm/Kconfig +++ b/drivers/pinctrl/bcm/Kconfig @@ -38,6 +38,14 @@ config PINCTRL_BCM63XX select PINCONF select PINMUX +config PINCTRL_BCM6318 + bool "Broadcom BCM6318 GPIO driver" + depends on (BMIPS_GENERIC || COMPILE_TEST) + select PINCTRL_BCM63XX + default BMIPS_GENERIC + help + Say Y here to enable the Broadcom BCM6318 GPIO driver. + config PINCTRL_BCM6328 bool "Broadcom BCM6328 GPIO driver" depends on (BMIPS_GENERIC || COMPILE_TEST) diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile index 4117847fd279..00c7b7775e63 100644 --- a/drivers/pinctrl/bcm/Makefile +++ b/drivers/pinctrl/bcm/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o obj-$(CONFIG_PINCTRL_BCM63XX) += pinctrl-bcm63xx.o +obj-$(CONFIG_PINCTRL_BCM6318) += pinctrl-bcm6318.o obj-$(CONFIG_PINCTRL_BCM6328) += pinctrl-bcm6328.o obj-$(CONFIG_PINCTRL_BCM6358) += pinctrl-bcm6358.o obj-$(CONFIG_PINCTRL_BCM6362) += pinctrl-bcm6362.o diff --git a/drivers/pinctrl/bcm/pinctrl-bcm6318.c b/drivers/pinctrl/bcm/pinctrl-bcm6318.c new file mode 100644 index 000000000000..57fa64180df1 --- /dev/null +++ b/drivers/pinctrl/bcm/pinctrl-bcm6318.c @@ -0,0 +1,496 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for BCM6318 GPIO unit (pinctrl + GPIO) + * + * Copyright (C) 2021 Álvaro Fernández Rojas + * Copyright (C) 2016 Jonas Gorski + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "../pinctrl-utils.h" + +#include "pinctrl-bcm63xx.h" + +#define BCM6318_NUM_GPIOS 50 +#define BCM6318_NUM_MUX 48 + +#define BCM6318_MODE_REG 0x18 +#define BCM6318_MUX_REG 0x1c +#define BCM6318_PAD_REG 0x54 + +struct bcm6318_pingroup { + const char *name; + const unsigned * const pins; + const unsigned num_pins; +}; + +struct bcm6318_function { + const char *name; + const char * const *groups; + const unsigned num_groups; + + unsigned mode_val:1; + unsigned mux_val:2; +}; + +static const struct pinctrl_pin_desc bcm6318_pins[] = { + PINCTRL_PIN(0, "gpio0"), + PINCTRL_PIN(1, "gpio1"), + PINCTRL_PIN(2, "gpio2"), + PINCTRL_PIN(3, "gpio3"), + PINCTRL_PIN(4, "gpio4"), + PINCTRL_PIN(5, "gpio5"), + PINCTRL_PIN(6, "gpio6"), + PINCTRL_PIN(7, "gpio7"), + PINCTRL_PIN(8, "gpio8"), + PINCTRL_PIN(9, "gpio9"), + PINCTRL_PIN(10, "gpio10"), + PINCTRL_PIN(11, "gpio11"), + PINCTRL_PIN(12, "gpio12"), + PINCTRL_PIN(13, "gpio13"), + PINCTRL_PIN(14, "gpio14"), + PINCTRL_PIN(15, "gpio15"), + PINCTRL_PIN(16, "gpio16"), + PINCTRL_PIN(17, "gpio17"), + PINCTRL_PIN(18, "gpio18"), + PINCTRL_PIN(19, "gpio19"), + PINCTRL_PIN(20, "gpio20"), + PINCTRL_PIN(21, "gpio21"), + PINCTRL_PIN(22, "gpio22"), + PINCTRL_PIN(23, "gpio23"), + PINCTRL_PIN(24, "gpio24"), + PINCTRL_PIN(25, "gpio25"), + PINCTRL_PIN(26, "gpio26"), + PINCTRL_PIN(27, "gpio27"), + PINCTRL_PIN(28, "gpio28"), + PINCTRL_PIN(29, "gpio29"), + PINCTRL_PIN(30, "gpio30"), + PINCTRL_PIN(31, "gpio31"), + PINCTRL_PIN(32, "gpio32"), + PINCTRL_PIN(33, "gpio33"), + PINCTRL_PIN(34, "gpio34"), + PINCTRL_PIN(35, "gpio35"), + PINCTRL_PIN(36, "gpio36"), + PINCTRL_PIN(37, "gpio37"), + PINCTRL_PIN(38, "gpio38"), + PINCTRL_PIN(39, "gpio39"), + PINCTRL_PIN(40, "gpio40"), + PINCTRL_PIN(41, "gpio41"), + PINCTRL_PIN(42, "gpio42"), + PINCTRL_PIN(43, "gpio43"), + PINCTRL_PIN(44, "gpio44"), + PINCTRL_PIN(45, "gpio45"), + PINCTRL_PIN(46, "gpio46"), + PINCTRL_PIN(47, "gpio47"), + PINCTRL_PIN(48, "gpio48"), + PINCTRL_PIN(49, "gpio49"), +}; + +static unsigned gpio0_pins[] = { 0 }; +static unsigned gpio1_pins[] = { 1 }; +static unsigned gpio2_pins[] = { 2 }; +static unsigned gpio3_pins[] = { 3 }; +static unsigned gpio4_pins[] = { 4 }; +static unsigned gpio5_pins[] = { 5 }; +static unsigned gpio6_pins[] = { 6 }; +static unsigned gpio7_pins[] = { 7 }; +static unsigned gpio8_pins[] = { 8 }; +static unsigned gpio9_pins[] = { 9 }; +static unsigned gpio10_pins[] = { 10 }; +static unsigned gpio11_pins[] = { 11 }; +static unsigned gpio12_pins[] = { 12 }; +static unsigned gpio13_pins[] = { 13 }; +static unsigned gpio14_pins[] = { 14 }; +static unsigned gpio15_pins[] = { 15 }; +static unsigned gpio16_pins[] = { 16 }; +static unsigned gpio17_pins[] = { 17 }; +static unsigned gpio18_pins[] = { 18 }; +static unsigned gpio19_pins[] = { 19 }; +static unsigned gpio20_pins[] = { 20 }; +static unsigned gpio21_pins[] = { 21 }; +static unsigned gpio22_pins[] = { 22 }; +static unsigned gpio23_pins[] = { 23 }; +static unsigned gpio24_pins[] = { 24 }; +static unsigned gpio25_pins[] = { 25 }; +static unsigned gpio26_pins[] = { 26 }; +static unsigned gpio27_pins[] = { 27 }; +static unsigned gpio28_pins[] = { 28 }; +static unsigned gpio29_pins[] = { 29 }; +static unsigned gpio30_pins[] = { 30 }; +static unsigned gpio31_pins[] = { 31 }; +static unsigned gpio32_pins[] = { 32 }; +static unsigned gpio33_pins[] = { 33 }; +static unsigned gpio34_pins[] = { 34 }; +static unsigned gpio35_pins[] = { 35 }; +static unsigned gpio36_pins[] = { 36 }; +static unsigned gpio37_pins[] = { 37 }; +static unsigned gpio38_pins[] = { 38 }; +static unsigned gpio39_pins[] = { 39 }; +static unsigned gpio40_pins[] = { 40 }; +static unsigned gpio41_pins[] = { 41 }; +static unsigned gpio42_pins[] = { 42 }; +static unsigned gpio43_pins[] = { 43 }; +static unsigned gpio44_pins[] = { 44 }; +static unsigned gpio45_pins[] = { 45 }; +static unsigned gpio46_pins[] = { 46 }; +static unsigned gpio47_pins[] = { 47 }; +static unsigned gpio48_pins[] = { 48 }; +static unsigned gpio49_pins[] = { 49 }; + +#define BCM6318_GROUP(n) \ + { \ + .name = #n, \ + .pins = n##_pins, \ + .num_pins = ARRAY_SIZE(n##_pins), \ + } + +static struct bcm6318_pingroup bcm6318_groups[] = { + BCM6318_GROUP(gpio0), + BCM6318_GROUP(gpio1), + BCM6318_GROUP(gpio2), + BCM6318_GROUP(gpio3), + BCM6318_GROUP(gpio4), + BCM6318_GROUP(gpio5), + BCM6318_GROUP(gpio6), + BCM6318_GROUP(gpio7), + BCM6318_GROUP(gpio8), + BCM6318_GROUP(gpio9), + BCM6318_GROUP(gpio10), + BCM6318_GROUP(gpio11), + BCM6318_GROUP(gpio12), + BCM6318_GROUP(gpio13), + BCM6318_GROUP(gpio14), + BCM6318_GROUP(gpio15), + BCM6318_GROUP(gpio16), + BCM6318_GROUP(gpio17), + BCM6318_GROUP(gpio18), + BCM6318_GROUP(gpio19), + BCM6318_GROUP(gpio20), + BCM6318_GROUP(gpio21), + BCM6318_GROUP(gpio22), + BCM6318_GROUP(gpio23), + BCM6318_GROUP(gpio24), + BCM6318_GROUP(gpio25), + BCM6318_GROUP(gpio26), + BCM6318_GROUP(gpio27), + BCM6318_GROUP(gpio28), + BCM6318_GROUP(gpio29), + BCM6318_GROUP(gpio30), + BCM6318_GROUP(gpio31), + BCM6318_GROUP(gpio32), + BCM6318_GROUP(gpio33), + BCM6318_GROUP(gpio34), + BCM6318_GROUP(gpio35), + BCM6318_GROUP(gpio36), + BCM6318_GROUP(gpio37), + BCM6318_GROUP(gpio38), + BCM6318_GROUP(gpio39), + BCM6318_GROUP(gpio40), + BCM6318_GROUP(gpio41), + BCM6318_GROUP(gpio42), + BCM6318_GROUP(gpio43), + BCM6318_GROUP(gpio44), + BCM6318_GROUP(gpio45), + BCM6318_GROUP(gpio46), + BCM6318_GROUP(gpio47), + BCM6318_GROUP(gpio48), + BCM6318_GROUP(gpio49), +}; + +/* GPIO_MODE */ +static const char * const led_groups[] = { + "gpio0", + "gpio1", + "gpio2", + "gpio3", + "gpio4", + "gpio5", + "gpio6", + "gpio7", + "gpio8", + "gpio9", + "gpio10", + "gpio11", + "gpio12", + "gpio13", + "gpio14", + "gpio15", + "gpio16", + "gpio17", + "gpio18", + "gpio19", + "gpio20", + "gpio21", + "gpio22", + "gpio23", +}; + +/* PINMUX_SEL */ +static const char * const ephy0_spd_led_groups[] = { + "gpio0", +}; + +static const char * const ephy1_spd_led_groups[] = { + "gpio1", +}; + +static const char * const ephy2_spd_led_groups[] = { + "gpio2", +}; + +static const char * const ephy3_spd_led_groups[] = { + "gpio3", +}; + +static const char * const ephy0_act_led_groups[] = { + "gpio4", +}; + +static const char * const ephy1_act_led_groups[] = { + "gpio5", +}; + +static const char * const ephy2_act_led_groups[] = { + "gpio6", +}; + +static const char * const ephy3_act_led_groups[] = { + "gpio7", +}; + +static const char * const serial_led_data_groups[] = { + "gpio6", +}; + +static const char * const serial_led_clk_groups[] = { + "gpio7", +}; + +static const char * const inet_act_led_groups[] = { + "gpio8", +}; + +static const char * const inet_fail_led_groups[] = { + "gpio9", +}; + +static const char * const dsl_led_groups[] = { + "gpio10", +}; + +static const char * const post_fail_led_groups[] = { + "gpio11", +}; + +static const char * const wlan_wps_led_groups[] = { + "gpio12", +}; + +static const char * const usb_pwron_groups[] = { + "gpio13", +}; + +static const char * const usb_device_led_groups[] = { + "gpio13", +}; + +static const char * const usb_active_groups[] = { + "gpio40", +}; + +#define BCM6318_MODE_FUN(n) \ + { \ + .name = #n, \ + .groups = n##_groups, \ + .num_groups = ARRAY_SIZE(n##_groups), \ + .mode_val = 1, \ + } + +#define BCM6318_MUX_FUN(n, mux) \ + { \ + .name = #n, \ + .groups = n##_groups, \ + .num_groups = ARRAY_SIZE(n##_groups), \ + .mux_val = mux, \ + } + +static const struct bcm6318_function bcm6318_funcs[] = { + BCM6318_MODE_FUN(led), + BCM6318_MUX_FUN(ephy0_spd_led, 1), + BCM6318_MUX_FUN(ephy1_spd_led, 1), + BCM6318_MUX_FUN(ephy2_spd_led, 1), + BCM6318_MUX_FUN(ephy3_spd_led, 1), + BCM6318_MUX_FUN(ephy0_act_led, 1), + BCM6318_MUX_FUN(ephy1_act_led, 1), + BCM6318_MUX_FUN(ephy2_act_led, 1), + BCM6318_MUX_FUN(ephy3_act_led, 1), + BCM6318_MUX_FUN(serial_led_data, 3), + BCM6318_MUX_FUN(serial_led_clk, 3), + BCM6318_MUX_FUN(inet_act_led, 1), + BCM6318_MUX_FUN(inet_fail_led, 1), + BCM6318_MUX_FUN(dsl_led, 1), + BCM6318_MUX_FUN(post_fail_led, 1), + BCM6318_MUX_FUN(wlan_wps_led, 1), + BCM6318_MUX_FUN(usb_pwron, 1), + BCM6318_MUX_FUN(usb_device_led, 2), + BCM6318_MUX_FUN(usb_active, 2), +}; + +static inline unsigned int bcm6318_mux_off(unsigned int pin) +{ + return BCM6318_MUX_REG + (pin / 16) * 4; +} + +static inline unsigned int bcm6318_pad_off(unsigned int pin) +{ + return BCM6318_PAD_REG + (pin / 8) * 4; +} + +static int bcm6318_pinctrl_get_group_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(bcm6318_groups); +} + +static const char *bcm6318_pinctrl_get_group_name(struct pinctrl_dev *pctldev, + unsigned group) +{ + return bcm6318_groups[group].name; +} + +static int bcm6318_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, + unsigned group, const unsigned **pins, + unsigned *num_pins) +{ + *pins = bcm6318_groups[group].pins; + *num_pins = bcm6318_groups[group].num_pins; + + return 0; +} + +static int bcm6318_pinctrl_get_func_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(bcm6318_funcs); +} + +static const char *bcm6318_pinctrl_get_func_name(struct pinctrl_dev *pctldev, + unsigned selector) +{ + return bcm6318_funcs[selector].name; +} + +static int bcm6318_pinctrl_get_groups(struct pinctrl_dev *pctldev, + unsigned selector, + const char * const **groups, + unsigned * const num_groups) +{ + *groups = bcm6318_funcs[selector].groups; + *num_groups = bcm6318_funcs[selector].num_groups; + + return 0; +} + +static inline void bcm6318_rmw_mux(struct bcm63xx_pinctrl *pc, unsigned pin, + unsigned int mode, unsigned int mux) +{ + if (pin < BCM63XX_BANK_GPIOS) + regmap_update_bits(pc->regs, BCM6318_MODE_REG, BIT(pin), + mode ? BIT(pin) : 0); + + if (pin < BCM6318_NUM_MUX) + regmap_update_bits(pc->regs, + bcm6318_mux_off(pin), + 3UL << ((pin % 16) * 2), + mux << ((pin % 16) * 2)); +} + +static inline void bcm6318_set_pad(struct bcm63xx_pinctrl *pc, unsigned pin, + uint8_t val) +{ + regmap_update_bits(pc->regs, bcm6318_pad_off(pin), + 0xfUL << ((pin % 8) * 4), + val << ((pin % 8) * 4)); +} + +static int bcm6318_pinctrl_set_mux(struct pinctrl_dev *pctldev, + unsigned selector, unsigned group) +{ + struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); + const struct bcm6318_pingroup *pg = &bcm6318_groups[group]; + const struct bcm6318_function *f = &bcm6318_funcs[selector]; + + bcm6318_rmw_mux(pc, pg->pins[0], f->mode_val, f->mux_val); + + return 0; +} + +static int bcm6318_gpio_request_enable(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned offset) +{ + struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev); + + /* disable all functions using this pin */ + if (offset < 13) { + /* GPIOs 0-12 use mux 0 as GPIO function */ + bcm6318_rmw_mux(pc, offset, 0, 0); + } else if (offset < 42) { + /* GPIOs 13-41 use mux 3 as GPIO function */ + bcm6318_rmw_mux(pc, offset, 0, 3); + + bcm6318_set_pad(pc, offset, 0); + } + + return 0; +} + +static struct pinctrl_ops bcm6318_pctl_ops = { + .get_groups_count = bcm6318_pinctrl_get_group_count, + .get_group_name = bcm6318_pinctrl_get_group_name, + .get_group_pins = bcm6318_pinctrl_get_group_pins, + .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, + .dt_free_map = pinctrl_utils_free_map, +}; + +static struct pinmux_ops bcm6318_pmx_ops = { + .get_functions_count = bcm6318_pinctrl_get_func_count, + .get_function_name = bcm6318_pinctrl_get_func_name, + .get_function_groups = bcm6318_pinctrl_get_groups, + .set_mux = bcm6318_pinctrl_set_mux, + .gpio_request_enable = bcm6318_gpio_request_enable, + .strict = true, +}; + +static const struct bcm63xx_pinctrl_soc bcm6318_soc = { + .ngpios = BCM6318_NUM_GPIOS, + .npins = ARRAY_SIZE(bcm6318_pins), + .pctl_ops = &bcm6318_pctl_ops, + .pins = bcm6318_pins, + .pmx_ops = &bcm6318_pmx_ops, +}; + +static int bcm6318_pinctrl_probe(struct platform_device *pdev) +{ + return bcm63xx_pinctrl_probe(pdev, &bcm6318_soc, NULL); +} + +static const struct of_device_id bcm6318_pinctrl_match[] = { + { .compatible = "brcm,bcm6318-pinctrl", }, + { }, +}; + +static struct platform_driver bcm6318_pinctrl_driver = { + .probe = bcm6318_pinctrl_probe, + .driver = { + .name = "bcm6318-pinctrl", + .of_match_table = bcm6318_pinctrl_match, + }, +}; + +builtin_platform_driver(bcm6318_pinctrl_driver);