From patchwork Sat Jan 29 11:52:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 538010 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86F27C433F5 for ; Sat, 29 Jan 2022 11:57:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241529AbiA2L5e (ORCPT ); Sat, 29 Jan 2022 06:57:34 -0500 Received: from mout.gmx.net ([212.227.15.18]:60127 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240332AbiA2L5e (ORCPT ); Sat, 29 Jan 2022 06:57:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1643457446; bh=jI07oj6ZQKZI4SXgpi5iludWDQoXodJQyaeDRlTbCts=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=gJ4oIxK9rVzKDBcpkf+20Gj+/iYCpB/Atx1VVrPPCh0zNg8+2PWj3sJm0GWsDfC0F KnV4sUE5BSoY56q3M+Mv4OI5BuciU1dK7tA9mG6fBRhxEcpJxFALsWf+667GcXWQPb HbUA/HwuIonalH/7VlhxghqZZv3N7PWcHPO1LZGU= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MxUnz-1mKilj2IyP-00xwKK; Sat, 29 Jan 2022 12:57:26 +0100 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, Andy Shevchenko , Avi Fishman , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , =?utf-8?q?Jonathan_Neusch=C3=A4fer?= , Rob Herring Subject: [PATCH v5 1/9] dt-bindings: arm/npcm: Add binding for global control registers (GCR) Date: Sat, 29 Jan 2022 12:52:20 +0100 Message-Id: <20220129115228.2257310-2-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220129115228.2257310-1-j.neuschaefer@gmx.net> References: <20220129115228.2257310-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:02EDbgw1aWo9wwZ2hCE2GRIiaSUQ04z/cHtTktAVudX4/RIbZry 8loU3I8s1IpTPaA9Bdi/N54iuGnis79b6JO1dQnH72ZoUzjfR5si+pRrzmLMhBUtsY+OYiz fE+/yXtezAgzBT+X/TyFeB1m4BszI1ZySOZwX5p8iG70geceiobxhDsOTbze9uyJE5NZ/ca ZRI6toxGGQzhcBTM6Rs7A== X-UI-Out-Filterresults: notjunk:1;V03:K0:jPAjAyxpmtE=:eOzq2mUyQpGbvQ6lsLzcMV Qaa4Bna/j9J78/ULZoZTWi5CrIkp2i9V3O3JH2M6irxclEQImaFTYmrG68xSfJ35n5qCCyf0K zFhlsMTj3Jm0g2eGMcOLDZjWlTjDcqqQTKdvcxRn+fXfVJDWg1t8DHt1eU8RdDoLdqAflPcvS RSjlHyguKQrgqx20iicgt7UYScyToCsJozDXN38mwAvzR73e7Tc5cxbqQL60aK3TmEEmxLVHQ PNYHYUuBdT1AbBznXVBy2bUljS7M0l+i23huysvcLGE9RACiC6McclQVd7Jfb6BFC08lMUhU1 mfSW/6bg6oyOr5MvbFCP8nauTEj+nhISe3BedaiwMDbse16zKdZen1JHPYZYq3BfLqMIjculO 8jIcwER5gVr36xgJkDw1CjUfZfWiZL0TijtHilxK3tkJ2rjre1QrUa34V8Hk1+WE465OoNYQG UVEiH3BiWqX2e01AQWTLnzTJAGgdPiZFyJZinnFztwR7Uk/iYb5hAytY5mmu6okSavEufTx2W D3r7fmXL1amkYndQFeNQwCw8/92NeT/rZihpLZteCnbEbD0Onb5HNnuscT/OU7meVbrQC7Z41 vg/6iM+aq9SpVo5ItL34RkosFyTeaaKsEZLyq6jnLuxUcRYExbRZzsaCsc3dccxP0XEeE4nvq 9elrmI/kyOdfDBj1urT3rVVe9L57pA7c0OD4qW9vXZRkKY0n6ot0kxCF5guZIaIMDmNoffNFt U9ZPPYnx1kquCzjLz4yzQ9deXkkF0nOvzybumJ3Df5I8gl3+YbSUuYLEIvci7UCmECvQLaXMR RH9gFC1QrHygDi2dH33bxoZjITRV+4uUnvmpNzm3/Cq0xB2JxHt0g/b/1KFFEhnkwgn72/3e0 +CSknAqVrqvP9QK5K+3glj/s/rC98EM9xSXsU2hu8jNFSotVY0bxK/oz0CS7BV9AGe4LsjQHa RdQs5rJemIIG1C0Hd7ErsGSKwNlJs6jYiw7TF1yabOaboEND/CJu06xVgkdxLvp5sbv1PGxQ4 4VSWon1mnW0yHeSdoWnjHoMdoHsXb0LqdCvRfgjRmFWejQsbWBufK3FhyVNU1yzFKDhHNHPnJ uh/V+v0ids5Qw4= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org A nuvoton,*-gcr node is present in nuvoton-common-npcm7xx.dtsi and will be added to nuvoton-wpcm450.dtsi. It is necessary for the NPCM7xx and WPCM450 pinctrl drivers, and may later be used to retrieve SoC model and version information. This patch adds a binding to describe this node. Signed-off-by: Jonathan Neuschäfer Reviewed-by: Rob Herring --- v5: - no changes v4: - Add Rob's R-b v3: - Make a few changes suggested by Rob Herring - Change name of mux-controller node to appease the linter v2: - https://lore.kernel.org/lkml/20211207210823.1975632-2-j.neuschaefer@gmx.net/ - Rename node in example to syscon@800000 - Add subnode to example v1: - https://lore.kernel.org/lkml/20210602120329.2444672-2-j.neuschaefer@gmx.net/ --- .../bindings/arm/npcm/nuvoton,gcr.yaml | 48 +++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml -- 2.34.1 diff --git a/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml new file mode 100644 index 0000000000000..fcb211add7d37 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/npcm/nuvoton,gcr.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/npcm/nuvoton,gcr.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Global Control Registers block in Nuvoton SoCs + +maintainers: + - Jonathan Neuschäfer + +description: + The Global Control Registers (GCR) are a block of registers in Nuvoton SoCs + that expose misc functionality such as chip model and version information or + pinmux settings. + +properties: + compatible: + items: + - enum: + - nuvoton,wpcm450-gcr + - nuvoton,npcm750-gcr + - const: syscon + - const: simple-mfd + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: + type: object + +examples: + - | + gcr: syscon@800000 { + compatible = "nuvoton,npcm750-gcr", "syscon", "simple-mfd"; + reg = <0x800000 0x1000>; + + mux-controller { + compatible = "mmio-mux"; + #mux-control-cells = <1>; + mux-reg-masks = <0x38 0x07>; + idle-states = <2>; + }; + }; From patchwork Sat Jan 29 11:52:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 538006 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D8EC2C4167D for ; Sat, 29 Jan 2022 11:57:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242505AbiA2L5y (ORCPT ); Sat, 29 Jan 2022 06:57:54 -0500 Received: from mout.gmx.net ([212.227.15.15]:60025 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243561AbiA2L5s (ORCPT ); Sat, 29 Jan 2022 06:57:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1643457458; bh=ccDPROmFjf9Eg0ChBX9YtEIF6/g61HJ5XVJaoz0ObZk=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=iDtrNPCmLBEyxq3jDA2JuRNqpTmph0mMg+S28VtQTQwZOkB4GtHFXoCqU+YPU5irp lN06xGDrKmZgYcPIJLCZbe3AXDoMybIlfruSWB+UfYrWlr59LilyZCbP6y1RGsAIXP JmijRs8j0lFONmoEGDnylTkh/XFOLwDJHBpw90GY= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1Mjj8D-1mYLb02VkR-00lDMW; Sat, 29 Jan 2022 12:57:37 +0100 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, Andy Shevchenko , Avi Fishman , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , =?utf-8?q?Jonathan_Neusch=C3=A4fer?= Subject: [PATCH v5 5/9] pinctrl: nuvoton: Add driver for WPCM450 Date: Sat, 29 Jan 2022 12:52:24 +0100 Message-Id: <20220129115228.2257310-6-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220129115228.2257310-1-j.neuschaefer@gmx.net> References: <20220129115228.2257310-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:h4FGRhfnQf6l9/FjbCHONSHWC2KmhBp+dsaV0zyqeKBjq0El3OY jgsi9cgnmy8dWIpsSF041owmQ6AyjPeUROY7iIohhjdhINemVf9n4q/uNscagXfO6RTpnek oZALvXwzbaHdTBdBznqsrBvoAG22R7Udg+XzXssE5yTp5enTgs18AqNhZw6FwVV0sNHoHoV CVFJ1K5cPG0BcujJP8WDQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:eH1I41JW17g=:XmcBND0Mb85YjhSksYl4Bt Swf8DuOKetoFnBJIosw5gKFB3DThbnmCN5Hb+RnbVnH4BSVtqd3Elhi4o4EyBxBkz8GOY4b+2 eFruC6GCB1WjCRMN7hKuGyrpfR/2giNHzkfI4W6HdrAYRvD+65NtH9Ruk3HkPDsQ+LuKnqbMo sTw/9nvTL55hdGkAwlRuOpajclXysARFuoHTa30j0tCd8VddLzh1Ty3Y3nAv50X1i+1V8BnGz pHc4U9GeakxA+LjitbkyOQei+dPcHzzMOPb8vXE/ERLPnIXK0Ky2NFiGR2HAiRUWOzK7JjY4/ UyIuDCpODNtotSXbJVfkzoMzsvyueb+r2o5V1bGGvJRCXlkzEeOSJApNkmCO30Ba9bQGfH0GA ICAS9aMOr5yJ0L+TryFK7OEnzQSMebtqzNYHrsZbNncGlKDPMPfP8XWhrQOXUiRDbeAB5AAGk j86HfhlP4ENufPAMuohw7WoT9TM8mm45h0k8Q+Z7xqxEH52Ec+jRgl9IwvO7spemhkJm0N1dI rSQUAH94zKCVQ0J6v8PVS/E50qz8Mn1VpEEb4x0kamfon9uJ7FRD0N0NN/fYBqklRckn9KxvX OMdh2dkID1H5eUmLpOy70qBj65xQI2W4f6uaANx2htQVO9Weyi7Qwcl8RKoKaMbEH5WOQl7mb DZcJcZmRuHcXIyhulJCWFQxFJi6F1LGUKgQanhd1nfARXAeqNUg+X9D0xtzl24Wq1FxCvX8LB +TzQY1Hl1FMogwuXw+5rBujLVv8kaPQIKISGs4hbLYe9c3JgU7Z9877MprrHmf9slcJVBABOF rEkiGOVoMACwl2Tj4SGNzAJgIozsElv7KJoHQoEOp6HFMHdQSd4JBDDV6vd24+felueApgHPI QKerel1N9i2JubpzKFB74A+dExg8AABekVAaLsRt1IRUjrIgWWvxsqx6j9WOfaSeOzGWDnD8k 6kjhxXpxUgsVVfdemloo6TsUNXjYCdfZfi1ARoHWUJj86Nhn40lgxfGZrSGLPyOhJa8DqUGjx EdusQiosOtsEs/mQry6Sk+HUuNQrncDvL13/nkC6Otw8QT9okR7KcO7cGXDkhN0JH723O9X/D wQZ1NXGAth73rE= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This driver is based on the one for NPCM7xx, because the WPCM450 is a predecessor of those SoCs. Notable differences: - On WPCM450, the GPIO registers are not organized in multiple banks, but rather placed continually into the same register block. This affects how register offsets are computed. - Pinmux nodes can explicitly select GPIO mode, whereas in the npcm7xx driver, this happens automatically when a GPIO is requested. Some functionality implemented in the hardware was (for now) left unused in the driver, specifically blinking and pull-up/down. Signed-off-by: Jonathan Neuschäfer --- This patch has a few checkpatch warnings, which are inherited from the pinctrl-npcm7xx driver. I decided to ignore those. Specifically: (1) WPCM450_GRPS is an unwrapped list; (2) use of -ENOTSUPP is discouraged. v5: - Switch to raw_spinlock for serializing register accesses v4: - https://lore.kernel.org/lkml/20220109173000.1242703-6-j.neuschaefer@gmx.net/ - A few more cleanups, as suggested by Andy Shevchenko - Change fwnode_property_read_u32 argument to u32 v3: - https://lore.kernel.org/lkml/20211224200935.93817-6-j.neuschaefer@gmx.net/ - make gc the first member of struct wpcm450_gpio, to simplify pointer arithmetic - Add empty line between includes and includes - Add a comment explaining wpcm450_gpio_fix_evpol - Use generic_handle_domain_irq - Rename struct fwnode_handle *np to child - Convert instances of dev_err() to dev_err_probe() and simplify return - Use device_for_each_child_node loop - Remove gpio->gc.parent assignment (already done in bgpio_init) - Move gpiochip_add_pin_range() to .add_pin_ranges callback - Use GENMASK in calculation of IRQ bitmask - I decided to keep using __assign_bit throughout the driver, because it keeps the code short - Remove nuvoton,interrupt-map again, to simplify the binding - Use gpio_chip->fwnode - I decided against using the bitmap_* API in(place of) wpcm450_gpio_irq_bitnum, etc., because I find the current solution clear enough, even though the mapping functions are somewhat verbose. v2: - https://lore.kernel.org/lkml/20211207210823.1975632-6-j.neuschaefer@gmx.net/ - Adjust to binding change which put each GPIO bank into its own node - Use generic GPIO support - Make it possible to set pinmux to GPIO explicitly - Allow building the driver as a module - Fix spelling of "spin lock" in text - Include - Move linux/pinctrl/* headers to the end of the #include block - Remove/rework comments and printk messages - Switch to fwnode API - Remove comma after sentinel {} - Use dev_err_probe - Improve Kconfig help message - Declare for_each_set_bit iterator as unsigned int - Use __assign_bit - Set parent irq handler in set_irq_type callback - Use struct group_desc - Don't hide sysfs bind attributes - Remove unnecessary check for gpio-controller property - Use module_platform_driver() v1: - https://lore.kernel.org/lkml/20210602120329.2444672-6-j.neuschaefer@gmx.net/ --- Everything following the line with "---" will be ignored rawspin--------------------------------------------------------------- --- MAINTAINERS | 1 + drivers/pinctrl/Makefile | 2 +- drivers/pinctrl/nuvoton/Kconfig | 18 + drivers/pinctrl/nuvoton/Makefile | 1 + drivers/pinctrl/nuvoton/pinctrl-wpcm450.c | 1150 +++++++++++++++++++++ 5 files changed, 1171 insertions(+), 1 deletion(-) create mode 100644 drivers/pinctrl/nuvoton/pinctrl-wpcm450.c -- 2.34.1 diff --git a/MAINTAINERS b/MAINTAINERS index d84dde42e33d3..2e40213eda1c5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2377,6 +2377,7 @@ S: Maintained F: Documentation/devicetree/bindings/*/*wpcm* F: arch/arm/boot/dts/nuvoton-wpcm450* F: arch/arm/mach-npcm/wpcm450.c +F: drivers/*/*/*wpcm* F: drivers/*/*wpcm* ARM/NXP S32G ARCHITECTURE diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 08c364d611f5a..fa2a3616a6615 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -62,7 +62,7 @@ obj-y += mediatek/ obj-$(CONFIG_PINCTRL_MESON) += meson/ obj-y += mvebu/ obj-y += nomadik/ -obj-$(CONFIG_ARCH_NPCM7XX) += nuvoton/ +obj-y += nuvoton/ obj-$(CONFIG_PINCTRL_PXA) += pxa/ obj-$(CONFIG_ARCH_QCOM) += qcom/ obj-$(CONFIG_PINCTRL_RALINK) += ralink/ diff --git a/drivers/pinctrl/nuvoton/Kconfig b/drivers/pinctrl/nuvoton/Kconfig index 48ba0469edda6..6a3c6f2a73f2d 100644 --- a/drivers/pinctrl/nuvoton/Kconfig +++ b/drivers/pinctrl/nuvoton/Kconfig @@ -1,4 +1,22 @@ # SPDX-License-Identifier: GPL-2.0-only + +config PINCTRL_WPCM450 + tristate "Pinctrl and GPIO driver for Nuvoton WPCM450" + depends on ARCH_WPCM450 || COMPILE_TEST + select PINMUX + select PINCONF + select GENERIC_PINCONF + select GPIOLIB + select GPIO_GENERIC + select GPIOLIB_IRQCHIP + help + Say Y or M here to enable pin controller and GPIO support for + the Nuvoton WPCM450 SoC. This is strongly recommended when + building a kernel that will run on this chip. + + If this driver is compiled as a module, it will be named + pinctrl-wpcm450. + config PINCTRL_NPCM7XX bool "Pinctrl and GPIO driver for Nuvoton NPCM7XX" depends on (ARCH_NPCM7XX || COMPILE_TEST) && OF diff --git a/drivers/pinctrl/nuvoton/Makefile b/drivers/pinctrl/nuvoton/Makefile index 886d00784cef5..9e66f5dc74bfc 100644 --- a/drivers/pinctrl/nuvoton/Makefile +++ b/drivers/pinctrl/nuvoton/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 # Nuvoton pinctrl support +obj-$(CONFIG_PINCTRL_WPCM450) += pinctrl-wpcm450.o obj-$(CONFIG_PINCTRL_NPCM7XX) += pinctrl-npcm7xx.o diff --git a/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c new file mode 100644 index 0000000000000..661aa963e3fc5 --- /dev/null +++ b/drivers/pinctrl/nuvoton/pinctrl-wpcm450.c @@ -0,0 +1,1150 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (c) 2016-2018 Nuvoton Technology corporation. +// Copyright (c) 2016, Dell Inc +// Copyright (c) 2021-2022 Jonathan Neuschäfer +// +// This driver uses the following registers: +// - Pin mux registers, in the GCR (general control registers) block +// - GPIO registers, specific to each GPIO bank +// - GPIO event (interrupt) registers, located centrally in the GPIO register +// block, shared between all GPIO banks + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "../core.h" + +/* GCR registers */ +#define WPCM450_GCR_MFSEL1 0x0c +#define WPCM450_GCR_MFSEL2 0x10 +#define WPCM450_GCR_NONE 0 + +/* GPIO event (interrupt) registers */ +#define WPCM450_GPEVTYPE 0x00 +#define WPCM450_GPEVPOL 0x04 +#define WPCM450_GPEVDBNC 0x08 +#define WPCM450_GPEVEN 0x0c +#define WPCM450_GPEVST 0x10 + +#define WPCM450_NUM_BANKS 8 +#define WPCM450_NUM_GPIOS 128 +#define WPCM450_NUM_GPIO_IRQS 4 + +struct wpcm450_pinctrl; +struct wpcm450_bank; + +struct wpcm450_gpio { + struct gpio_chip gc; + struct wpcm450_pinctrl *pctrl; + struct irq_chip irqc; + const struct wpcm450_bank *bank; +}; + +struct wpcm450_pinctrl { + struct pinctrl_dev *pctldev; + struct device *dev; + struct irq_domain *domain; + struct regmap *gcr_regmap; + void __iomem *gpio_base; + struct wpcm450_gpio gpio_bank[WPCM450_NUM_BANKS]; + unsigned long both_edges; + + /* + * This spin lock protects registers and struct wpcm450_pinctrl fields + * against concurrent access. + */ + raw_spinlock_t lock; +}; + +struct wpcm450_bank { + /* Range of GPIOs in this port */ + u8 base; + u8 length; + + /* Register offsets (0 = register doesn't exist in this port) */ + u8 cfg0, cfg1, cfg2; + u8 blink; + u8 dataout, datain; + + /* Interrupt bit mapping */ + u8 first_irq_bit; /* First bit in GPEVST that belongs to this bank */ + u8 num_irqs; /* Number of IRQ-capable GPIOs in this bank */ + u8 first_irq_gpio; /* First IRQ-capable GPIO in this bank */ +}; + +static const struct wpcm450_bank wpcm450_banks[WPCM450_NUM_BANKS] = { + /* range cfg0 cfg1 cfg2 blink out in IRQ map */ + { 0, 16, 0x14, 0x18, 0, 0, 0x1c, 0x20, 0, 16, 0 }, + { 16, 16, 0x24, 0x28, 0x2c, 0x30, 0x34, 0x38, 16, 2, 8 }, + { 32, 16, 0x3c, 0x40, 0x44, 0, 0x48, 0x4c, 0, 0, 0 }, + { 48, 16, 0x50, 0x54, 0x58, 0, 0x5c, 0x60, 0, 0, 0 }, + { 64, 16, 0x64, 0x68, 0x6c, 0, 0x70, 0x74, 0, 0, 0 }, + { 80, 16, 0x78, 0x7c, 0x80, 0, 0x84, 0x88, 0, 0, 0 }, + { 96, 18, 0, 0, 0, 0, 0, 0x8c, 0, 0, 0 }, + { 114, 14, 0x90, 0x94, 0x98, 0, 0x9c, 0xa0, 0, 0, 0 }, +}; + +static int wpcm450_gpio_irq_bitnum(struct wpcm450_gpio *gpio, struct irq_data *d) +{ + const struct wpcm450_bank *bank = gpio->bank; + int hwirq = irqd_to_hwirq(d); + + if (hwirq < bank->first_irq_gpio) + return -EINVAL; + + if (hwirq - bank->first_irq_gpio >= bank->num_irqs) + return -EINVAL; + + return hwirq - bank->first_irq_gpio + bank->first_irq_bit; +} + +static int wpcm450_irq_bitnum_to_gpio(struct wpcm450_gpio *gpio, int bitnum) +{ + const struct wpcm450_bank *bank = gpio->bank; + + if (bitnum < bank->first_irq_bit) + return -EINVAL; + + if (bitnum - bank->first_irq_bit > bank->num_irqs) + return -EINVAL; + + return bitnum - bank->first_irq_bit + bank->first_irq_gpio; +} + +static void wpcm450_gpio_irq_ack(struct irq_data *d) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(irq_data_get_irq_chip_data(d)); + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + unsigned long flags; + int bit; + + bit = wpcm450_gpio_irq_bitnum(gpio, d); + if (bit < 0) + return; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + iowrite32(BIT(bit), pctrl->gpio_base + WPCM450_GPEVST); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static void wpcm450_gpio_irq_mask(struct irq_data *d) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(irq_data_get_irq_chip_data(d)); + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + unsigned long flags; + unsigned long even; + int bit; + + bit = wpcm450_gpio_irq_bitnum(gpio, d); + if (bit < 0) + return; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + even = ioread32(pctrl->gpio_base + WPCM450_GPEVEN); + __assign_bit(bit, &even, 0); + iowrite32(even, pctrl->gpio_base + WPCM450_GPEVEN); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); +} + +static void wpcm450_gpio_irq_unmask(struct irq_data *d) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(irq_data_get_irq_chip_data(d)); + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + unsigned long flags; + unsigned long even; + int bit; + + bit = wpcm450_gpio_irq_bitnum(gpio, d); + if (bit < 0) + return; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + even = ioread32(pctrl->gpio_base + WPCM450_GPEVEN); + __assign_bit(bit, &even, 1); + iowrite32(even, pctrl->gpio_base + WPCM450_GPEVEN); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); +} + +/* + * This is an implementation of the gpio_chip->get() function, for use in + * wpcm450_gpio_fix_evpol. Unfortunately, we can't use the bgpio-provided + * implementation there, because it would require taking gpio_chip->bgpio_lock, + * which is a spin lock, but wpcm450_gpio_fix_evpol must work in contexts where + * a raw spin lock is held. + */ +static int wpcm450_gpio_get(struct wpcm450_gpio *gpio, int offset) +{ + void __iomem *reg = gpio->pctrl->gpio_base + gpio->bank->datain; + unsigned long flags; + u32 level; + + raw_spin_lock_irqsave(&gpio->pctrl->lock, flags); + level = !!(ioread32(reg) & BIT(offset)); + raw_spin_unlock_irqrestore(&gpio->pctrl->lock, flags); + + return level; +} + +/* + * Since the GPIO controller does not support dual-edge triggered interrupts + * (IRQ_TYPE_EDGE_BOTH), they are emulated using rising/falling edge triggered + * interrupts. wpcm450_gpio_fix_evpol sets the interrupt polarity for the + * specified emulated dual-edge triggered interrupts, so that the next edge can + * be detected. + */ +static void wpcm450_gpio_fix_evpol(struct wpcm450_gpio *gpio, unsigned long all) +{ + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + unsigned int bit; + + for_each_set_bit(bit, &all, 32) { + int offset = wpcm450_irq_bitnum_to_gpio(gpio, bit); + unsigned long evpol; + unsigned long flags; + int level; + + do { + level = wpcm450_gpio_get(gpio, offset); + + /* Switch event polarity to the opposite of the current level */ + raw_spin_lock_irqsave(&pctrl->lock, flags); + evpol = ioread32(pctrl->gpio_base + WPCM450_GPEVPOL); + __assign_bit(bit, &evpol, !level); + iowrite32(evpol, pctrl->gpio_base + WPCM450_GPEVPOL); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); + + } while (wpcm450_gpio_get(gpio, offset) != level); + } +} + +static int wpcm450_gpio_set_irq_type(struct irq_data *d, unsigned int flow_type) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(irq_data_get_irq_chip_data(d)); + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + unsigned long evtype, evpol; + unsigned long flags; + int ret = 0; + int bit; + + bit = wpcm450_gpio_irq_bitnum(gpio, d); + if (bit < 0) + return bit; + + irq_set_handler_locked(d, handle_level_irq); + + raw_spin_lock_irqsave(&pctrl->lock, flags); + evtype = ioread32(pctrl->gpio_base + WPCM450_GPEVTYPE); + evpol = ioread32(pctrl->gpio_base + WPCM450_GPEVPOL); + __assign_bit(bit, &pctrl->both_edges, 0); + switch (flow_type) { + case IRQ_TYPE_LEVEL_LOW: + __assign_bit(bit, &evtype, 1); + __assign_bit(bit, &evpol, 0); + break; + case IRQ_TYPE_LEVEL_HIGH: + __assign_bit(bit, &evtype, 1); + __assign_bit(bit, &evpol, 1); + break; + case IRQ_TYPE_EDGE_FALLING: + __assign_bit(bit, &evtype, 0); + __assign_bit(bit, &evpol, 0); + break; + case IRQ_TYPE_EDGE_RISING: + __assign_bit(bit, &evtype, 0); + __assign_bit(bit, &evpol, 1); + break; + case IRQ_TYPE_EDGE_BOTH: + __assign_bit(bit, &evtype, 0); + __assign_bit(bit, &pctrl->both_edges, 1); + break; + default: + ret = -EINVAL; + } + iowrite32(evtype, pctrl->gpio_base + WPCM450_GPEVTYPE); + iowrite32(evpol, pctrl->gpio_base + WPCM450_GPEVPOL); + + /* clear the event status for good measure */ + iowrite32(BIT(bit), pctrl->gpio_base + WPCM450_GPEVST); + + raw_spin_unlock_irqrestore(&pctrl->lock, flags); + + /* fix event polarity after clearing event status */ + wpcm450_gpio_fix_evpol(gpio, BIT(bit)); + + return ret; +} + +static const struct irq_chip wpcm450_gpio_irqchip = { + .name = "WPCM450-GPIO-IRQ", + .irq_ack = wpcm450_gpio_irq_ack, + .irq_unmask = wpcm450_gpio_irq_unmask, + .irq_mask = wpcm450_gpio_irq_mask, + .irq_set_type = wpcm450_gpio_set_irq_type, +}; + +static void wpcm450_gpio_irqhandler(struct irq_desc *desc) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(irq_desc_get_handler_data(desc)); + struct wpcm450_pinctrl *pctrl = gpio->pctrl; + struct irq_chip *chip = irq_desc_get_chip(desc); + unsigned long pending; + unsigned long flags; + unsigned long ours; + unsigned int bit; + + ours = GENMASK(gpio->bank->num_irqs - 1, 0) << gpio->bank->first_irq_bit; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + + pending = ioread32(pctrl->gpio_base + WPCM450_GPEVST); + pending &= ioread32(pctrl->gpio_base + WPCM450_GPEVEN); + pending &= ours; + + raw_spin_unlock_irqrestore(&pctrl->lock, flags); + + if (pending & pctrl->both_edges) + wpcm450_gpio_fix_evpol(gpio, pending & pctrl->both_edges); + + chained_irq_enter(chip, desc); + for_each_set_bit(bit, &pending, 32) { + int offset = wpcm450_irq_bitnum_to_gpio(gpio, bit); + + generic_handle_domain_irq(gpio->gc.irq.domain, offset); + } + chained_irq_exit(chip, desc); +} + +static int smb0_pins[] = { 115, 114 }; +static int smb1_pins[] = { 117, 116 }; +static int smb2_pins[] = { 119, 118 }; +static int smb3_pins[] = { 30, 31 }; +static int smb4_pins[] = { 28, 29 }; +static int smb5_pins[] = { 26, 27 }; + +static int scs1_pins[] = { 32 }; +static int scs2_pins[] = { 33 }; +static int scs3_pins[] = { 34 }; + +static int bsp_pins[] = { 41, 42 }; +static int hsp1_pins[] = { 43, 44, 45, 46, 47, 61, 62, 63 }; +static int hsp2_pins[] = { 48, 49, 50, 51, 52, 53, 54, 55 }; + +static int r1err_pins[] = { 56 }; +static int r1md_pins[] = { 57, 58 }; +static int rmii2_pins[] = { 84, 85, 86, 87, 88, 89 }; +static int r2err_pins[] = { 90 }; +static int r2md_pins[] = { 91, 92 }; + +static int kbcc_pins[] = { 94, 93 }; +static int clko_pins[] = { 96 }; +static int smi_pins[] = { 97 }; +static int uinc_pins[] = { 19 }; +static int mben_pins[] = {}; + +static int gspi_pins[] = { 12, 13, 14, 15 }; +static int sspi_pins[] = { 12, 13, 14, 15 }; + +static int xcs1_pins[] = { 35 }; +static int xcs2_pins[] = { 36 }; + +static int sdio_pins[] = { 7, 22, 43, 44, 45, 46, 47, 60 }; + +static int fi0_pins[] = { 64 }; +static int fi1_pins[] = { 65 }; +static int fi2_pins[] = { 66 }; +static int fi3_pins[] = { 67 }; +static int fi4_pins[] = { 68 }; +static int fi5_pins[] = { 69 }; +static int fi6_pins[] = { 70 }; +static int fi7_pins[] = { 71 }; +static int fi8_pins[] = { 72 }; +static int fi9_pins[] = { 73 }; +static int fi10_pins[] = { 74 }; +static int fi11_pins[] = { 75 }; +static int fi12_pins[] = { 76 }; +static int fi13_pins[] = { 77 }; +static int fi14_pins[] = { 78 }; +static int fi15_pins[] = { 79 }; + +static int pwm0_pins[] = { 80 }; +static int pwm1_pins[] = { 81 }; +static int pwm2_pins[] = { 82 }; +static int pwm3_pins[] = { 83 }; +static int pwm4_pins[] = { 20 }; +static int pwm5_pins[] = { 21 }; +static int pwm6_pins[] = { 16 }; +static int pwm7_pins[] = { 17 }; + +static int hg0_pins[] = { 20 }; +static int hg1_pins[] = { 21 }; +static int hg2_pins[] = { 22 }; +static int hg3_pins[] = { 23 }; +static int hg4_pins[] = { 24 }; +static int hg5_pins[] = { 25 }; +static int hg6_pins[] = { 59 }; +static int hg7_pins[] = { 60 }; + +#define WPCM450_GRPS \ + WPCM450_GRP(smb3), \ + WPCM450_GRP(smb4), \ + WPCM450_GRP(smb5), \ + WPCM450_GRP(scs1), \ + WPCM450_GRP(scs2), \ + WPCM450_GRP(scs3), \ + WPCM450_GRP(smb0), \ + WPCM450_GRP(smb1), \ + WPCM450_GRP(smb2), \ + WPCM450_GRP(bsp), \ + WPCM450_GRP(hsp1), \ + WPCM450_GRP(hsp2), \ + WPCM450_GRP(r1err), \ + WPCM450_GRP(r1md), \ + WPCM450_GRP(rmii2), \ + WPCM450_GRP(r2err), \ + WPCM450_GRP(r2md), \ + WPCM450_GRP(kbcc), \ + WPCM450_GRP(clko), \ + WPCM450_GRP(smi), \ + WPCM450_GRP(uinc), \ + WPCM450_GRP(gspi), \ + WPCM450_GRP(mben), \ + WPCM450_GRP(xcs2), \ + WPCM450_GRP(xcs1), \ + WPCM450_GRP(sdio), \ + WPCM450_GRP(sspi), \ + WPCM450_GRP(fi0), \ + WPCM450_GRP(fi1), \ + WPCM450_GRP(fi2), \ + WPCM450_GRP(fi3), \ + WPCM450_GRP(fi4), \ + WPCM450_GRP(fi5), \ + WPCM450_GRP(fi6), \ + WPCM450_GRP(fi7), \ + WPCM450_GRP(fi8), \ + WPCM450_GRP(fi9), \ + WPCM450_GRP(fi10), \ + WPCM450_GRP(fi11), \ + WPCM450_GRP(fi12), \ + WPCM450_GRP(fi13), \ + WPCM450_GRP(fi14), \ + WPCM450_GRP(fi15), \ + WPCM450_GRP(pwm0), \ + WPCM450_GRP(pwm1), \ + WPCM450_GRP(pwm2), \ + WPCM450_GRP(pwm3), \ + WPCM450_GRP(pwm4), \ + WPCM450_GRP(pwm5), \ + WPCM450_GRP(pwm6), \ + WPCM450_GRP(pwm7), \ + WPCM450_GRP(hg0), \ + WPCM450_GRP(hg1), \ + WPCM450_GRP(hg2), \ + WPCM450_GRP(hg3), \ + WPCM450_GRP(hg4), \ + WPCM450_GRP(hg5), \ + WPCM450_GRP(hg6), \ + WPCM450_GRP(hg7), \ + +enum { +#define WPCM450_GRP(x) fn_ ## x + WPCM450_GRPS + /* add placeholder for none/gpio */ + WPCM450_GRP(gpio), + WPCM450_GRP(none), +#undef WPCM450_GRP +}; + +static struct group_desc wpcm450_groups[] = { +#define WPCM450_GRP(x) { .name = #x, .pins = x ## _pins, \ + .num_pins = ARRAY_SIZE(x ## _pins) } + WPCM450_GRPS +#undef WPCM450_GRP +}; + +#define WPCM450_SFUNC(a) WPCM450_FUNC(a, #a) +#define WPCM450_FUNC(a, b...) static const char *a ## _grp[] = { b } +#define WPCM450_MKFUNC(nm) { .name = #nm, .ngroups = ARRAY_SIZE(nm ## _grp), \ + .groups = nm ## _grp } +struct wpcm450_func { + const char *name; + const unsigned int ngroups; + const char *const *groups; +}; + +WPCM450_SFUNC(smb3); +WPCM450_SFUNC(smb4); +WPCM450_SFUNC(smb5); +WPCM450_SFUNC(scs1); +WPCM450_SFUNC(scs2); +WPCM450_SFUNC(scs3); +WPCM450_SFUNC(smb0); +WPCM450_SFUNC(smb1); +WPCM450_SFUNC(smb2); +WPCM450_SFUNC(bsp); +WPCM450_SFUNC(hsp1); +WPCM450_SFUNC(hsp2); +WPCM450_SFUNC(r1err); +WPCM450_SFUNC(r1md); +WPCM450_SFUNC(rmii2); +WPCM450_SFUNC(r2err); +WPCM450_SFUNC(r2md); +WPCM450_SFUNC(kbcc); +WPCM450_SFUNC(clko); +WPCM450_SFUNC(smi); +WPCM450_SFUNC(uinc); +WPCM450_SFUNC(gspi); +WPCM450_SFUNC(mben); +WPCM450_SFUNC(xcs2); +WPCM450_SFUNC(xcs1); +WPCM450_SFUNC(sdio); +WPCM450_SFUNC(sspi); +WPCM450_SFUNC(fi0); +WPCM450_SFUNC(fi1); +WPCM450_SFUNC(fi2); +WPCM450_SFUNC(fi3); +WPCM450_SFUNC(fi4); +WPCM450_SFUNC(fi5); +WPCM450_SFUNC(fi6); +WPCM450_SFUNC(fi7); +WPCM450_SFUNC(fi8); +WPCM450_SFUNC(fi9); +WPCM450_SFUNC(fi10); +WPCM450_SFUNC(fi11); +WPCM450_SFUNC(fi12); +WPCM450_SFUNC(fi13); +WPCM450_SFUNC(fi14); +WPCM450_SFUNC(fi15); +WPCM450_SFUNC(pwm0); +WPCM450_SFUNC(pwm1); +WPCM450_SFUNC(pwm2); +WPCM450_SFUNC(pwm3); +WPCM450_SFUNC(pwm4); +WPCM450_SFUNC(pwm5); +WPCM450_SFUNC(pwm6); +WPCM450_SFUNC(pwm7); +WPCM450_SFUNC(hg0); +WPCM450_SFUNC(hg1); +WPCM450_SFUNC(hg2); +WPCM450_SFUNC(hg3); +WPCM450_SFUNC(hg4); +WPCM450_SFUNC(hg5); +WPCM450_SFUNC(hg6); +WPCM450_SFUNC(hg7); + +#define WPCM450_GRP(x) #x +WPCM450_FUNC(gpio, WPCM450_GRPS); +#undef WPCM450_GRP + +/* Function names */ +static struct wpcm450_func wpcm450_funcs[] = { + WPCM450_MKFUNC(smb3), + WPCM450_MKFUNC(smb4), + WPCM450_MKFUNC(smb5), + WPCM450_MKFUNC(scs1), + WPCM450_MKFUNC(scs2), + WPCM450_MKFUNC(scs3), + WPCM450_MKFUNC(smb0), + WPCM450_MKFUNC(smb1), + WPCM450_MKFUNC(smb2), + WPCM450_MKFUNC(bsp), + WPCM450_MKFUNC(hsp1), + WPCM450_MKFUNC(hsp2), + WPCM450_MKFUNC(r1err), + WPCM450_MKFUNC(r1md), + WPCM450_MKFUNC(rmii2), + WPCM450_MKFUNC(r2err), + WPCM450_MKFUNC(r2md), + WPCM450_MKFUNC(kbcc), + WPCM450_MKFUNC(clko), + WPCM450_MKFUNC(smi), + WPCM450_MKFUNC(uinc), + WPCM450_MKFUNC(gspi), + WPCM450_MKFUNC(mben), + WPCM450_MKFUNC(xcs2), + WPCM450_MKFUNC(xcs1), + WPCM450_MKFUNC(sdio), + WPCM450_MKFUNC(sspi), + WPCM450_MKFUNC(fi0), + WPCM450_MKFUNC(fi1), + WPCM450_MKFUNC(fi2), + WPCM450_MKFUNC(fi3), + WPCM450_MKFUNC(fi4), + WPCM450_MKFUNC(fi5), + WPCM450_MKFUNC(fi6), + WPCM450_MKFUNC(fi7), + WPCM450_MKFUNC(fi8), + WPCM450_MKFUNC(fi9), + WPCM450_MKFUNC(fi10), + WPCM450_MKFUNC(fi11), + WPCM450_MKFUNC(fi12), + WPCM450_MKFUNC(fi13), + WPCM450_MKFUNC(fi14), + WPCM450_MKFUNC(fi15), + WPCM450_MKFUNC(pwm0), + WPCM450_MKFUNC(pwm1), + WPCM450_MKFUNC(pwm2), + WPCM450_MKFUNC(pwm3), + WPCM450_MKFUNC(pwm4), + WPCM450_MKFUNC(pwm5), + WPCM450_MKFUNC(pwm6), + WPCM450_MKFUNC(pwm7), + WPCM450_MKFUNC(hg0), + WPCM450_MKFUNC(hg1), + WPCM450_MKFUNC(hg2), + WPCM450_MKFUNC(hg3), + WPCM450_MKFUNC(hg4), + WPCM450_MKFUNC(hg5), + WPCM450_MKFUNC(hg6), + WPCM450_MKFUNC(hg7), + WPCM450_MKFUNC(gpio), +}; + +#define WPCM450_PINCFG(a, b, c, d, e, f, g) \ + [a] { .fn0 = fn_ ## b, .reg0 = WPCM450_GCR_ ## c, .bit0 = d, \ + .fn1 = fn_ ## e, .reg1 = WPCM450_GCR_ ## f, .bit1 = g } + +struct wpcm450_pincfg { + int fn0, reg0, bit0; + int fn1, reg1, bit1; +}; + +static const struct wpcm450_pincfg pincfg[] = { + /* PIN FUNCTION 1 FUNCTION 2 */ + WPCM450_PINCFG(0, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(1, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(2, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(3, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(4, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(5, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(6, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(7, none, NONE, 0, sdio, MFSEL1, 30), + WPCM450_PINCFG(8, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(9, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(10, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(11, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(12, gspi, MFSEL1, 24, sspi, MFSEL1, 31), + WPCM450_PINCFG(13, gspi, MFSEL1, 24, sspi, MFSEL1, 31), + WPCM450_PINCFG(14, gspi, MFSEL1, 24, sspi, MFSEL1, 31), + WPCM450_PINCFG(15, gspi, MFSEL1, 24, sspi, MFSEL1, 31), + WPCM450_PINCFG(16, none, NONE, 0, pwm6, MFSEL2, 22), + WPCM450_PINCFG(17, none, NONE, 0, pwm7, MFSEL2, 23), + WPCM450_PINCFG(18, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(19, uinc, MFSEL1, 23, none, NONE, 0), + WPCM450_PINCFG(20, hg0, MFSEL2, 24, pwm4, MFSEL2, 20), + WPCM450_PINCFG(21, hg1, MFSEL2, 25, pwm5, MFSEL2, 21), + WPCM450_PINCFG(22, hg2, MFSEL2, 26, none, NONE, 0), + WPCM450_PINCFG(23, hg3, MFSEL2, 27, none, NONE, 0), + WPCM450_PINCFG(24, hg4, MFSEL2, 28, none, NONE, 0), + WPCM450_PINCFG(25, hg5, MFSEL2, 29, none, NONE, 0), + WPCM450_PINCFG(26, smb5, MFSEL1, 2, none, NONE, 0), + WPCM450_PINCFG(27, smb5, MFSEL1, 2, none, NONE, 0), + WPCM450_PINCFG(28, smb4, MFSEL1, 1, none, NONE, 0), + WPCM450_PINCFG(29, smb4, MFSEL1, 1, none, NONE, 0), + WPCM450_PINCFG(30, smb3, MFSEL1, 0, none, NONE, 0), + WPCM450_PINCFG(31, smb3, MFSEL1, 0, none, NONE, 0), + + WPCM450_PINCFG(32, scs1, MFSEL1, 3, none, NONE, 0), + WPCM450_PINCFG(33, scs2, MFSEL1, 4, none, NONE, 0), + WPCM450_PINCFG(34, scs3, MFSEL1, 5, none, NONE, 0), + WPCM450_PINCFG(35, xcs1, MFSEL1, 29, none, NONE, 0), + WPCM450_PINCFG(36, xcs2, MFSEL1, 28, none, NONE, 0), + WPCM450_PINCFG(37, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(38, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(39, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(40, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(41, bsp, MFSEL1, 9, none, NONE, 0), + WPCM450_PINCFG(42, bsp, MFSEL1, 9, none, NONE, 0), + WPCM450_PINCFG(43, hsp1, MFSEL1, 10, sdio, MFSEL1, 30), + WPCM450_PINCFG(44, hsp1, MFSEL1, 10, sdio, MFSEL1, 30), + WPCM450_PINCFG(45, hsp1, MFSEL1, 10, sdio, MFSEL1, 30), + WPCM450_PINCFG(46, hsp1, MFSEL1, 10, sdio, MFSEL1, 30), + WPCM450_PINCFG(47, hsp1, MFSEL1, 10, sdio, MFSEL1, 30), + WPCM450_PINCFG(48, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(49, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(50, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(51, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(52, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(53, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(54, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(55, hsp2, MFSEL1, 11, none, NONE, 0), + WPCM450_PINCFG(56, r1err, MFSEL1, 12, none, NONE, 0), + WPCM450_PINCFG(57, r1md, MFSEL1, 13, none, NONE, 0), + WPCM450_PINCFG(58, r1md, MFSEL1, 13, none, NONE, 0), + WPCM450_PINCFG(59, hg6, MFSEL2, 30, none, NONE, 0), + WPCM450_PINCFG(60, hg7, MFSEL2, 31, sdio, MFSEL1, 30), + WPCM450_PINCFG(61, hsp1, MFSEL1, 10, none, NONE, 0), + WPCM450_PINCFG(62, hsp1, MFSEL1, 10, none, NONE, 0), + WPCM450_PINCFG(63, hsp1, MFSEL1, 10, none, NONE, 0), + + WPCM450_PINCFG(64, fi0, MFSEL2, 0, none, NONE, 0), + WPCM450_PINCFG(65, fi1, MFSEL2, 1, none, NONE, 0), + WPCM450_PINCFG(66, fi2, MFSEL2, 2, none, NONE, 0), + WPCM450_PINCFG(67, fi3, MFSEL2, 3, none, NONE, 0), + WPCM450_PINCFG(68, fi4, MFSEL2, 4, none, NONE, 0), + WPCM450_PINCFG(69, fi5, MFSEL2, 5, none, NONE, 0), + WPCM450_PINCFG(70, fi6, MFSEL2, 6, none, NONE, 0), + WPCM450_PINCFG(71, fi7, MFSEL2, 7, none, NONE, 0), + WPCM450_PINCFG(72, fi8, MFSEL2, 8, none, NONE, 0), + WPCM450_PINCFG(73, fi9, MFSEL2, 9, none, NONE, 0), + WPCM450_PINCFG(74, fi10, MFSEL2, 10, none, NONE, 0), + WPCM450_PINCFG(75, fi11, MFSEL2, 11, none, NONE, 0), + WPCM450_PINCFG(76, fi12, MFSEL2, 12, none, NONE, 0), + WPCM450_PINCFG(77, fi13, MFSEL2, 13, none, NONE, 0), + WPCM450_PINCFG(78, fi14, MFSEL2, 14, none, NONE, 0), + WPCM450_PINCFG(79, fi15, MFSEL2, 15, none, NONE, 0), + WPCM450_PINCFG(80, pwm0, MFSEL2, 16, none, NONE, 0), + WPCM450_PINCFG(81, pwm1, MFSEL2, 17, none, NONE, 0), + WPCM450_PINCFG(82, pwm2, MFSEL2, 18, none, NONE, 0), + WPCM450_PINCFG(83, pwm3, MFSEL2, 19, none, NONE, 0), + WPCM450_PINCFG(84, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(85, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(86, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(87, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(88, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(89, rmii2, MFSEL1, 14, none, NONE, 0), + WPCM450_PINCFG(90, r2err, MFSEL1, 15, none, NONE, 0), + WPCM450_PINCFG(91, r2md, MFSEL1, 16, none, NONE, 0), + WPCM450_PINCFG(92, r2md, MFSEL1, 16, none, NONE, 0), + WPCM450_PINCFG(93, kbcc, MFSEL1, 17, none, NONE, 0), + WPCM450_PINCFG(94, kbcc, MFSEL1, 17, none, NONE, 0), + WPCM450_PINCFG(95, none, NONE, 0, none, NONE, 0), + + WPCM450_PINCFG(96, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(97, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(98, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(99, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(100, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(101, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(102, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(103, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(104, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(105, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(106, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(107, none, NONE, 0, none, NONE, 0), + WPCM450_PINCFG(108, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(109, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(110, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(111, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(112, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(113, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(114, smb0, MFSEL1, 6, none, NONE, 0), + WPCM450_PINCFG(115, smb0, MFSEL1, 6, none, NONE, 0), + WPCM450_PINCFG(116, smb1, MFSEL1, 7, none, NONE, 0), + WPCM450_PINCFG(117, smb1, MFSEL1, 7, none, NONE, 0), + WPCM450_PINCFG(118, smb2, MFSEL1, 8, none, NONE, 0), + WPCM450_PINCFG(119, smb2, MFSEL1, 8, none, NONE, 0), + WPCM450_PINCFG(120, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(121, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(122, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(123, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(124, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(125, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(126, none, NONE, 0, none, NONE, 0), /* DVO */ + WPCM450_PINCFG(127, none, NONE, 0, none, NONE, 0), /* DVO */ +}; + +#define WPCM450_PIN(n) PINCTRL_PIN(n, "gpio" #n) + +static const struct pinctrl_pin_desc wpcm450_pins[] = { + WPCM450_PIN(0), WPCM450_PIN(1), WPCM450_PIN(2), WPCM450_PIN(3), + WPCM450_PIN(4), WPCM450_PIN(5), WPCM450_PIN(6), WPCM450_PIN(7), + WPCM450_PIN(8), WPCM450_PIN(9), WPCM450_PIN(10), WPCM450_PIN(11), + WPCM450_PIN(12), WPCM450_PIN(13), WPCM450_PIN(14), WPCM450_PIN(15), + WPCM450_PIN(16), WPCM450_PIN(17), WPCM450_PIN(18), WPCM450_PIN(19), + WPCM450_PIN(20), WPCM450_PIN(21), WPCM450_PIN(22), WPCM450_PIN(23), + WPCM450_PIN(24), WPCM450_PIN(25), WPCM450_PIN(26), WPCM450_PIN(27), + WPCM450_PIN(28), WPCM450_PIN(29), WPCM450_PIN(30), WPCM450_PIN(31), + WPCM450_PIN(32), WPCM450_PIN(33), WPCM450_PIN(34), WPCM450_PIN(35), + WPCM450_PIN(36), WPCM450_PIN(37), WPCM450_PIN(38), WPCM450_PIN(39), + WPCM450_PIN(40), WPCM450_PIN(41), WPCM450_PIN(42), WPCM450_PIN(43), + WPCM450_PIN(44), WPCM450_PIN(45), WPCM450_PIN(46), WPCM450_PIN(47), + WPCM450_PIN(48), WPCM450_PIN(49), WPCM450_PIN(50), WPCM450_PIN(51), + WPCM450_PIN(52), WPCM450_PIN(53), WPCM450_PIN(54), WPCM450_PIN(55), + WPCM450_PIN(56), WPCM450_PIN(57), WPCM450_PIN(58), WPCM450_PIN(59), + WPCM450_PIN(60), WPCM450_PIN(61), WPCM450_PIN(62), WPCM450_PIN(63), + WPCM450_PIN(64), WPCM450_PIN(65), WPCM450_PIN(66), WPCM450_PIN(67), + WPCM450_PIN(68), WPCM450_PIN(69), WPCM450_PIN(70), WPCM450_PIN(71), + WPCM450_PIN(72), WPCM450_PIN(73), WPCM450_PIN(74), WPCM450_PIN(75), + WPCM450_PIN(76), WPCM450_PIN(77), WPCM450_PIN(78), WPCM450_PIN(79), + WPCM450_PIN(80), WPCM450_PIN(81), WPCM450_PIN(82), WPCM450_PIN(83), + WPCM450_PIN(84), WPCM450_PIN(85), WPCM450_PIN(86), WPCM450_PIN(87), + WPCM450_PIN(88), WPCM450_PIN(89), WPCM450_PIN(90), WPCM450_PIN(91), + WPCM450_PIN(92), WPCM450_PIN(93), WPCM450_PIN(94), WPCM450_PIN(95), + WPCM450_PIN(96), WPCM450_PIN(97), WPCM450_PIN(98), WPCM450_PIN(99), + WPCM450_PIN(100), WPCM450_PIN(101), WPCM450_PIN(102), WPCM450_PIN(103), + WPCM450_PIN(104), WPCM450_PIN(105), WPCM450_PIN(106), WPCM450_PIN(107), + WPCM450_PIN(108), WPCM450_PIN(109), WPCM450_PIN(110), WPCM450_PIN(111), + WPCM450_PIN(112), WPCM450_PIN(113), WPCM450_PIN(114), WPCM450_PIN(115), + WPCM450_PIN(116), WPCM450_PIN(117), WPCM450_PIN(118), WPCM450_PIN(119), + WPCM450_PIN(120), WPCM450_PIN(121), WPCM450_PIN(122), WPCM450_PIN(123), + WPCM450_PIN(124), WPCM450_PIN(125), WPCM450_PIN(126), WPCM450_PIN(127), +}; + +/* Enable mode in pin group */ +static void wpcm450_setfunc(struct regmap *gcr_regmap, const unsigned int *pin, + int npins, int func) +{ + const struct wpcm450_pincfg *cfg; + int i; + + for (i = 0; i < npins; i++) { + cfg = &pincfg[pin[i]]; + if (func == fn_gpio || cfg->fn0 == func || cfg->fn1 == func) { + if (cfg->reg0) + regmap_update_bits(gcr_regmap, cfg->reg0, + BIT(cfg->bit0), + (cfg->fn0 == func) ? BIT(cfg->bit0) : 0); + if (cfg->reg1) + regmap_update_bits(gcr_regmap, cfg->reg1, + BIT(cfg->bit1), + (cfg->fn1 == func) ? BIT(cfg->bit1) : 0); + } + } +} + +static int wpcm450_get_groups_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(wpcm450_groups); +} + +static const char *wpcm450_get_group_name(struct pinctrl_dev *pctldev, + unsigned int selector) +{ + return wpcm450_groups[selector].name; +} + +static int wpcm450_get_group_pins(struct pinctrl_dev *pctldev, + unsigned int selector, + const unsigned int **pins, + unsigned int *npins) +{ + *npins = wpcm450_groups[selector].num_pins; + *pins = wpcm450_groups[selector].pins; + + return 0; +} + +static int wpcm450_dt_node_to_map(struct pinctrl_dev *pctldev, + struct device_node *np_config, + struct pinctrl_map **map, + u32 *num_maps) +{ + return pinconf_generic_dt_node_to_map(pctldev, np_config, + map, num_maps, + PIN_MAP_TYPE_INVALID); +} + +static void wpcm450_dt_free_map(struct pinctrl_dev *pctldev, + struct pinctrl_map *map, u32 num_maps) +{ + kfree(map); +} + +static const struct pinctrl_ops wpcm450_pinctrl_ops = { + .get_groups_count = wpcm450_get_groups_count, + .get_group_name = wpcm450_get_group_name, + .get_group_pins = wpcm450_get_group_pins, + .dt_node_to_map = wpcm450_dt_node_to_map, + .dt_free_map = wpcm450_dt_free_map, +}; + +static int wpcm450_get_functions_count(struct pinctrl_dev *pctldev) +{ + return ARRAY_SIZE(wpcm450_funcs); +} + +static const char *wpcm450_get_function_name(struct pinctrl_dev *pctldev, + unsigned int function) +{ + return wpcm450_funcs[function].name; +} + +static int wpcm450_get_function_groups(struct pinctrl_dev *pctldev, + unsigned int function, + const char * const **groups, + unsigned int * const ngroups) +{ + *ngroups = wpcm450_funcs[function].ngroups; + *groups = wpcm450_funcs[function].groups; + + return 0; +} + +static int wpcm450_pinmux_set_mux(struct pinctrl_dev *pctldev, + unsigned int function, + unsigned int group) +{ + struct wpcm450_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + + wpcm450_setfunc(pctrl->gcr_regmap, wpcm450_groups[group].pins, + wpcm450_groups[group].num_pins, function); + + return 0; +} + +static const struct pinmux_ops wpcm450_pinmux_ops = { + .get_functions_count = wpcm450_get_functions_count, + .get_function_name = wpcm450_get_function_name, + .get_function_groups = wpcm450_get_function_groups, + .set_mux = wpcm450_pinmux_set_mux, +}; + +static int debounce_bitnum(int gpio) +{ + if (gpio >= 0 && gpio < 16) + return gpio; + return -EINVAL; +} + +static int wpcm450_config_get(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *config) +{ + struct wpcm450_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param param = pinconf_to_config_param(*config); + unsigned long flags; + int bit; + u32 reg; + + switch (param) { + case PIN_CONFIG_INPUT_DEBOUNCE: + bit = debounce_bitnum(pin); + if (bit < 0) + return bit; + + raw_spin_lock_irqsave(&pctrl->lock, flags); + reg = ioread32(pctrl->gpio_base + WPCM450_GPEVDBNC); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); + + *config = pinconf_to_config_packed(param, !!(reg & BIT(bit))); + return 0; + default: + return -ENOTSUPP; + } +} + +static int wpcm450_config_set_one(struct wpcm450_pinctrl *pctrl, + unsigned int pin, unsigned long config) +{ + enum pin_config_param param = pinconf_to_config_param(config); + unsigned long flags; + unsigned long reg; + int bit; + int arg; + + switch (param) { + case PIN_CONFIG_INPUT_DEBOUNCE: + bit = debounce_bitnum(pin); + if (bit < 0) + return bit; + + arg = pinconf_to_config_argument(config); + + raw_spin_lock_irqsave(&pctrl->lock, flags); + reg = ioread32(pctrl->gpio_base + WPCM450_GPEVDBNC); + __assign_bit(bit, ®, arg); + iowrite32(reg, pctrl->gpio_base + WPCM450_GPEVDBNC); + raw_spin_unlock_irqrestore(&pctrl->lock, flags); + return 0; + default: + return -ENOTSUPP; + } +} + +static int wpcm450_config_set(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *configs, unsigned int num_configs) +{ + struct wpcm450_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev); + int ret; + + while (num_configs--) { + ret = wpcm450_config_set_one(pctrl, pin, *configs++); + if (ret) + return ret; + } + + return 0; +} + +static const struct pinconf_ops wpcm450_pinconf_ops = { + .is_generic = true, + .pin_config_get = wpcm450_config_get, + .pin_config_set = wpcm450_config_set, +}; + +static struct pinctrl_desc wpcm450_pinctrl_desc = { + .name = "wpcm450-pinctrl", + .pins = wpcm450_pins, + .npins = ARRAY_SIZE(wpcm450_pins), + .pctlops = &wpcm450_pinctrl_ops, + .pmxops = &wpcm450_pinmux_ops, + .confops = &wpcm450_pinconf_ops, + .owner = THIS_MODULE, +}; + +static int wpcm450_gpio_set_config(struct gpio_chip *chip, + unsigned int offset, unsigned long config) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(chip); + + return wpcm450_config_set_one(gpio->pctrl, offset, config); +} + +static int wpcm450_gpio_add_pin_ranges(struct gpio_chip *chip) +{ + struct wpcm450_gpio *gpio = gpiochip_get_data(chip); + const struct wpcm450_bank *bank = gpio->bank; + + return gpiochip_add_pin_range(&gpio->gc, dev_name(gpio->pctrl->dev), + 0, bank->base, bank->length); +} + +static int wpcm450_gpio_register(struct platform_device *pdev, + struct wpcm450_pinctrl *pctrl) +{ + struct device *dev = &pdev->dev; + struct fwnode_handle *child; + int ret; + + pctrl->gpio_base = devm_platform_ioremap_resource(pdev, 0); + if (!pctrl->gpio_base) + return dev_err_probe(dev, -ENOMEM, "Resource fail for GPIO controller\n"); + + device_for_each_child_node(dev, child) { + void __iomem *dat = NULL; + void __iomem *set = NULL; + void __iomem *dirout = NULL; + unsigned long flags = 0; + const struct wpcm450_bank *bank; + struct wpcm450_gpio *gpio; + struct gpio_irq_chip *girq; + u32 reg; + int i; + + if (!fwnode_property_read_bool(child, "gpio-controller")) + continue; + + ret = fwnode_property_read_u32(child, "reg", ®); + if (ret < 0) + return ret; + + gpio = &pctrl->gpio_bank[reg]; + gpio->pctrl = pctrl; + + if (reg > WPCM450_NUM_BANKS) + return dev_err_probe(dev, -EINVAL, + "GPIO index %d out of range!\n", reg); + + bank = &wpcm450_banks[reg]; + gpio->bank = bank; + + dat = pctrl->gpio_base + bank->datain; + if (bank->dataout) { + set = pctrl->gpio_base + bank->dataout; + dirout = pctrl->gpio_base + bank->cfg0; + } else { + flags = BGPIOF_NO_OUTPUT; + } + ret = bgpio_init(&gpio->gc, dev, 4, + dat, set, NULL, dirout, NULL, flags); + if (ret < 0) + return dev_err_probe(dev, ret, "GPIO initialization failed\n"); + + gpio->gc.ngpio = bank->length; + gpio->gc.set_config = wpcm450_gpio_set_config; + gpio->gc.fwnode = child; + gpio->gc.add_pin_ranges = wpcm450_gpio_add_pin_ranges; + + gpio->irqc = wpcm450_gpio_irqchip; + girq = &gpio->gc.irq; + girq->chip = &gpio->irqc; + girq->parent_handler = wpcm450_gpio_irqhandler; + girq->parents = devm_kcalloc(dev, WPCM450_NUM_GPIO_IRQS, + sizeof(*girq->parents), GFP_KERNEL); + if (!girq->parents) + return -ENOMEM; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_bad_irq; + + girq->num_parents = 0; + for (i = 0; i < WPCM450_NUM_GPIO_IRQS; i++) { + int irq = fwnode_irq_get(child, i); + + if (irq < 0) + break; + + girq->parents[i] = irq; + girq->num_parents++; + } + + ret = devm_gpiochip_add_data(dev, &gpio->gc, gpio); + if (ret) + return dev_err_probe(dev, ret, "Failed to add GPIO chip\n"); + } + + return 0; +} + +static int wpcm450_pinctrl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct wpcm450_pinctrl *pctrl; + int ret; + + pctrl = devm_kzalloc(dev, sizeof(*pctrl), GFP_KERNEL); + if (!pctrl) + return -ENOMEM; + + pctrl->dev = &pdev->dev; + raw_spin_lock_init(&pctrl->lock); + dev_set_drvdata(dev, pctrl); + + pctrl->gcr_regmap = + syscon_regmap_lookup_by_compatible("nuvoton,wpcm450-gcr"); + if (IS_ERR(pctrl->gcr_regmap)) + return dev_err_probe(dev, PTR_ERR(pctrl->gcr_regmap), + "Failed to find nuvoton,wpcm450-gcr\n"); + + pctrl->pctldev = devm_pinctrl_register(dev, + &wpcm450_pinctrl_desc, pctrl); + if (IS_ERR(pctrl->pctldev)) + return dev_err_probe(dev, PTR_ERR(pctrl->pctldev), + "Failed to register pinctrl device\n"); + + ret = wpcm450_gpio_register(pdev, pctrl); + if (ret < 0) + return ret; + + return 0; +} + +static const struct of_device_id wpcm450_pinctrl_match[] = { + { .compatible = "nuvoton,wpcm450-pinctrl" }, + { } +}; +MODULE_DEVICE_TABLE(of, wpcm450_pinctrl_match); + +static struct platform_driver wpcm450_pinctrl_driver = { + .probe = wpcm450_pinctrl_probe, + .driver = { + .name = "wpcm450-pinctrl", + .of_match_table = wpcm450_pinctrl_match, + }, +}; +module_platform_driver(wpcm450_pinctrl_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Jonathan Neuschäfer "); +MODULE_DESCRIPTION("Nuvoton WPCM450 Pinctrl and GPIO driver"); From patchwork Sat Jan 29 11:52:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 538008 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 687E8C433FE for ; Sat, 29 Jan 2022 11:57:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242197AbiA2L5x (ORCPT ); Sat, 29 Jan 2022 06:57:53 -0500 Received: from mout.gmx.net ([212.227.15.18]:34321 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243421AbiA2L5r (ORCPT ); Sat, 29 Jan 2022 06:57:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1643457460; bh=OZ3FImY4buDpM2SCt3sdsnaGAv78MOdHJUgHnb0UnLw=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=LS0hAuD6fEHt7jxZ4DEiAvYFOw2NMHAJchraq2jwHh1ClH3sCLBgW49xlnmAn4hCe hEwpVJRL4U4jVRYwZAzif4MgGJ5zjpikM9Ne4hJuC25nc7JqBWT1a1YzI+P4lP7MX1 juXK33ibOLEv9XVmEicOHb4+255ileBR3Ijge2Vo= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1Mplc7-1mSJyw447R-00q7q9; Sat, 29 Jan 2022 12:57:40 +0100 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, Andy Shevchenko , Avi Fishman , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , =?utf-8?q?Jonathan_Neusch=C3=A4fer?= Subject: [PATCH v5 7/9] ARM: dts: wpcm450: Add pin functions Date: Sat, 29 Jan 2022 12:52:26 +0100 Message-Id: <20220129115228.2257310-8-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220129115228.2257310-1-j.neuschaefer@gmx.net> References: <20220129115228.2257310-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:OttVufcKJuCBQfYkAHDkJlzfiLdUnPpOsjMx3GOyM1GPohfAYKO zXlhgpnXSr4iRnUifiPfy/wG5k5/QhiF8Q1K68D2vKjRhfWeUcC9g8t31lb3eUqsFuq0zbH OnklYbFscR8OaKY1gEwIj55MoOYjD3PqtO9U6cg6helZeNb+y8a9p+gubM5cslu2DzuQHag W9FOwjFD018sL5CkcvzMg== X-UI-Out-Filterresults: notjunk:1;V03:K0:UM0bW0LUggk=:/UuO5hLvE3K4dIT6WlfL7N S+YqJ7SJ73M6ionPQXyi90P71MaPPEPvVVI+9jrHBQbDTzGTxdCzftcoXg43oArto5ivKMuOX 38de2t23T4vjToj2FzLadDbaJMSN8n4rh6taWhSZaLyLuW0N4GAk/aX96kU+g+EJwogrsVcGg qDpVGRNYwibQ6Dzgyg4SNB032Gi5m4IlGNAOMkUK5/hl/QjJm0pSa0lYlSmA/1eUqvNJ/GDtI Y27zEglYIvzmieZ64TgZHnoYXrf9F+Mgx/0+YYpV5TB/ZdT3Eu5TE9PMaO7Sccq3x22SkaqgV MwCAYBa2PczmLIXbgRu1gENxwUXy6FMJz9cOfqKpOwYMbCZJ0KPHz7PSseuRH/6+1cqDiK8n5 5c2n5p/MI7kah4H4WDskszQ2yYIPvEXm65BCGtb/PDNqXahfIinqYIJ1t7GV5dCm7G2S522aU BKhVsd+TnKjL1jtXSG8mWYIQaohsbaFjlY+GDMMKJRxzh2j7ZEgj8OgYmBQ9ueC9YznopfbJY W6EfI+DGmXJhprJ+iyPx5CfATfKqHCFjzW9YMKEY4kRjUib+cH9flW4e//pFi8ccAvgDBt34z WvR/WNW2eFDO1WtFqQm1R4HgVFbmg50Zl5M4YJKftvXtJwzz0xPij8LhusP5+MZSvfy+haJ7D 3T7mj2mh6B89ZE7q+UCLBZqWYO90Zi4x6MnUBYS8rnMc4tw0KfF+lvVVWp0YCJegGioUrB608 xwd8GdtS/nEXwABNIay+hXSqIzJtxOs9lhBxeTQA1B5bXO0+MKg88RIcdg/AcHpsPa/3Mfk6w rjXLbGelSnsHT4GgM4wVfpuyyo5FalVpCyfxnMWLM/MY4wIt1xD0rbxlnyHQOm8R+r5i3d7qb cuuluoaLLbFyLkhx+f64zQIDrzKgr6AcKYSG5oK4k8vJ/7iSsXi7s3BpdCQvjG8hDfVKiWSKN mvYtiwmZQ/L8txBWsrOFzfreOW9jBt4hb7F8+SY4EHYgirbJ2CI5Sc5qzgO3DXlL9MWzPfulW 7lcpNX+qPrtpWUn/T79sHvJp7avGZiSTib2HmOAIoHZR0fTiV7ihZ5JFNWdH/HcVlW63lZnd2 vneiCekPICknH8= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org As done in nuvoton-common-npcm7xx.dtsi, this patch adds pinmux nodes for all pin functions to nuvoton-wpcm450.dtsi. Signed-off-by: Jonathan Neuschäfer --- v4-v5: - no changes v3: - Adjust to schema changes v2: - no changes v1: - https://lore.kernel.org/lkml/20210602120329.2444672-8-j.neuschaefer@gmx.net/ --- arch/arm/boot/dts/nuvoton-wpcm450.dtsi | 305 +++++++++++++++++++++++++ 1 file changed, 305 insertions(+) -- 2.34.1 diff --git a/arch/arm/boot/dts/nuvoton-wpcm450.dtsi b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi index 66c35626c80a6..0c547bd88bdbd 100644 --- a/arch/arm/boot/dts/nuvoton-wpcm450.dtsi +++ b/arch/arm/boot/dts/nuvoton-wpcm450.dtsi @@ -148,6 +148,311 @@ gpio7: gpio@7 { gpio-controller; #gpio-cells = <2>; }; + + smb3_pins: mux-smb3 { + groups = "smb3"; + function = "smb3"; + }; + + smb4_pins: mux-smb4 { + groups = "smb4"; + function = "smb4"; + }; + + smb5_pins: mux-smb5 { + groups = "smb5"; + function = "smb5"; + }; + + scs1_pins: mux-scs1 { + groups = "scs1"; + function = "scs1"; + }; + + scs2_pins: mux-scs2 { + groups = "scs2"; + function = "scs2"; + }; + + scs3_pins: mux-scs3 { + groups = "scs3"; + function = "scs3"; + }; + + smb0_pins: mux-smb0 { + groups = "smb0"; + function = "smb0"; + }; + + smb1_pins: mux-smb1 { + groups = "smb1"; + function = "smb1"; + }; + + smb2_pins: mux-smb2 { + groups = "smb2"; + function = "smb2"; + }; + + bsp_pins: mux-bsp { + groups = "bsp"; + function = "bsp"; + }; + + hsp1_pins: mux-hsp1 { + groups = "hsp1"; + function = "hsp1"; + }; + + hsp2_pins: mux-hsp2 { + groups = "hsp2"; + function = "hsp2"; + }; + + r1err_pins: mux-r1err { + groups = "r1err"; + function = "r1err"; + }; + + r1md_pins: mux-r1md { + groups = "r1md"; + function = "r1md"; + }; + + rmii2_pins: mux-rmii2 { + groups = "rmii2"; + function = "rmii2"; + }; + + r2err_pins: mux-r2err { + groups = "r2err"; + function = "r2err"; + }; + + r2md_pins: mux-r2md { + groups = "r2md"; + function = "r2md"; + }; + + kbcc_pins: mux-kbcc { + groups = "kbcc"; + function = "kbcc"; + }; + + dvo0_pins: mux-dvo0 { + groups = "dvo"; + function = "dvo0"; + }; + + dvo3_pins: mux-dvo3 { + groups = "dvo"; + function = "dvo3"; + }; + + clko_pins: mux-clko { + groups = "clko"; + function = "clko"; + }; + + smi_pins: mux-smi { + groups = "smi"; + function = "smi"; + }; + + uinc_pins: mux-uinc { + groups = "uinc"; + function = "uinc"; + }; + + gspi_pins: mux-gspi { + groups = "gspi"; + function = "gspi"; + }; + + mben_pins: mux-mben { + groups = "mben"; + function = "mben"; + }; + + xcs2_pins: mux-xcs2 { + groups = "xcs2"; + function = "xcs2"; + }; + + xcs1_pins: mux-xcs1 { + groups = "xcs1"; + function = "xcs1"; + }; + + sdio_pins: mux-sdio { + groups = "sdio"; + function = "sdio"; + }; + + sspi_pins: mux-sspi { + groups = "sspi"; + function = "sspi"; + }; + + fi0_pins: mux-fi0 { + groups = "fi0"; + function = "fi0"; + }; + + fi1_pins: mux-fi1 { + groups = "fi1"; + function = "fi1"; + }; + + fi2_pins: mux-fi2 { + groups = "fi2"; + function = "fi2"; + }; + + fi3_pins: mux-fi3 { + groups = "fi3"; + function = "fi3"; + }; + + fi4_pins: mux-fi4 { + groups = "fi4"; + function = "fi4"; + }; + + fi5_pins: mux-fi5 { + groups = "fi5"; + function = "fi5"; + }; + + fi6_pins: mux-fi6 { + groups = "fi6"; + function = "fi6"; + }; + + fi7_pins: mux-fi7 { + groups = "fi7"; + function = "fi7"; + }; + + fi8_pins: mux-fi8 { + groups = "fi8"; + function = "fi8"; + }; + + fi9_pins: mux-fi9 { + groups = "fi9"; + function = "fi9"; + }; + + fi10_pins: mux-fi10 { + groups = "fi10"; + function = "fi10"; + }; + + fi11_pins: mux-fi11 { + groups = "fi11"; + function = "fi11"; + }; + + fi12_pins: mux-fi12 { + groups = "fi12"; + function = "fi12"; + }; + + fi13_pins: mux-fi13 { + groups = "fi13"; + function = "fi13"; + }; + + fi14_pins: mux-fi14 { + groups = "fi14"; + function = "fi14"; + }; + + fi15_pins: mux-fi15 { + groups = "fi15"; + function = "fi15"; + }; + + pwm0_pins: mux-pwm0 { + groups = "pwm0"; + function = "pwm0"; + }; + + pwm1_pins: mux-pwm1 { + groups = "pwm1"; + function = "pwm1"; + }; + + pwm2_pins: mux-pwm2 { + groups = "pwm2"; + function = "pwm2"; + }; + + pwm3_pins: mux-pwm3 { + groups = "pwm3"; + function = "pwm3"; + }; + + pwm4_pins: mux-pwm4 { + groups = "pwm4"; + function = "pwm4"; + }; + + pwm5_pins: mux-pwm5 { + groups = "pwm5"; + function = "pwm5"; + }; + + pwm6_pins: mux-pwm6 { + groups = "pwm6"; + function = "pwm6"; + }; + + pwm7_pins: mux-pwm7 { + groups = "pwm7"; + function = "pwm7"; + }; + + hg0_pins: mux-hg0 { + groups = "hg0"; + function = "hg0"; + }; + + hg1_pins: mux-hg1 { + groups = "hg1"; + function = "hg1"; + }; + + hg2_pins: mux-hg2 { + groups = "hg2"; + function = "hg2"; + }; + + hg3_pins: mux-hg3 { + groups = "hg3"; + function = "hg3"; + }; + + hg4_pins: mux-hg4 { + groups = "hg4"; + function = "hg4"; + }; + + hg5_pins: mux-hg5 { + groups = "hg5"; + function = "hg5"; + }; + + hg6_pins: mux-hg6 { + groups = "hg6"; + function = "hg6"; + }; + + hg7_pins: mux-hg7 { + groups = "hg7"; + function = "hg7"; + }; }; }; }; From patchwork Sat Jan 29 11:52:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 538007 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 488C5C4167E for ; Sat, 29 Jan 2022 11:57:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242710AbiA2L5y (ORCPT ); Sat, 29 Jan 2022 06:57:54 -0500 Received: from mout.gmx.net ([212.227.17.22]:52837 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243641AbiA2L5s (ORCPT ); Sat, 29 Jan 2022 06:57:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1643457461; bh=JOEXiTjFnqOmIEh7FlJF2+6B4pSYnO1bOc1StqmzREg=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=dtWYqQ9rMhwIAaAt1/nDb8hfitOQPSoochodgVgrwTGEls6J7bUcY0G1+zj+diFkP rfylkaXBv7fG5rB8al//FE5UoS7z/U38oGoUgdum/BRHU41fElBbckRmjNg7+e7k+q 5PeXv7ueyQaXmJENsMF2YK1fkqp1NYKrlOzrg1gs= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([5.146.194.160]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MFbRm-1n2CpX0Wys-00H76X; Sat, 29 Jan 2022 12:57:41 +0100 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-gpio@vger.kernel.org, devicetree@vger.kernel.org Cc: Linus Walleij , Rob Herring , openbmc@lists.ozlabs.org, Tomer Maimon , Joel Stanley , linux-kernel@vger.kernel.org, Andy Shevchenko , Avi Fishman , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , =?utf-8?q?Jonathan_Neusch=C3=A4fer?= Subject: [PATCH v5 8/9] ARM: dts: wpcm450-supermicro-x9sci-ln4f: Add GPIO LEDs and buttons Date: Sat, 29 Jan 2022 12:52:27 +0100 Message-Id: <20220129115228.2257310-9-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220129115228.2257310-1-j.neuschaefer@gmx.net> References: <20220129115228.2257310-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:Wc57uANddytwidBievKLMxhxtfP7SmTJ1lOnO/Q9apU47qhDU9G XL/kZFJ5+TGP4lxVMaEWuIXdI3uFldFTV3wjaZeqgs+OvplcOKoy/A1AtlQ/L3qfQHjmZZR C5kKgS5MNFynLZYlwTpeLgaHfHFPWqP08TgJ5wE4daBm1e81Rh+bdPF7s4Egx8B9NWYxqBG 0LVZmDX4xE3W0kNwiXZQQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:MVZlQqyTRgE=:TLIZ/tWv0MtAIkDyoTCxg1 CkDoqu6gN7iGEkhfEVcfsemO9xbnS/I0qhVREctGoaI0aB6IhB7zf7THOvyz2fusgx4j7Db4u t6pJiXIsCE0L9ifpZV9K5j8BNia5UJ6nt4q/2ASmFgPsx0QuOv3xJiBaqNsFfAbUAOz6U5W8Q vPvmgh/dGePwrQjS1yHuaigYclaLJsmKjwls88dd9Jrr6ZX5u8vx+fg8MmijA3ktpssEucnmJ im1LzGnVvBWCgSgCiW5pGqjKCkCMsnVlvv1mrJim9ZO3IoSXGY2oJIpJwk/E5PSruZXRprNh0 QFwew/F6knJSw1AtinwXYqksJfxA6FkucGR3KpDCr7gwaRyMDCUTetgQ/gKrkJPgb1GVq0CXO D0azOhOwNt0x0GGXyMapNCE0g3yfzyE2+yEm+j72OobL9BMaRZu58fH4yz70NNmQ3up42fJ2k 9ohtZ5SURQofdb/vRI71ANJQr7J7ZkFFBQTeGi1CqPGr6/38ntT7FejpbwH+YpqTU+ONrR8PF m/f5t3dxoIUIKe0uiYrEk2Vv6GUL0gp7fVxx+666s0lFLOLwfcDE+HaVkZ3XFfpscxucmYwkA 0nybji91QUFNtKg/pWYIArJVITQW+eIta4AQR5xvEgKMXMmPESXi+D36akxzQkuN6FAQ1AOIP P0F3y8XcQ8tnDT9Gvkze3FdM7/4XGvMG/l0ilkBkTLbOi/ISHbDIqXrLuNbn8aP1PO0NG4WzX wtMf37PclcumK+9EPYU7bIM9DGY97aNzJulGTJGb6vmGEDBQ4lbWpTbI8e6kLwzeu9ZZRNYIa 9qs5jNuKBfkfcP2u76uTFY12G3P3TK7u9jgK8S3Znd0fidpaAVarauPFll6kjUMDlEPgWMsCR 0E9uvY+SPS2i/j0Bgqfqo9EzZi0CBfDUDVyZM7VmZrWY+gQDoyk4WRD3ZWCiADEz0tTGgcVwy gsU2GjDRScUNEiP+p5kPXUmYb7C8GZ5bQZXcBk4S08QIu6kOuucqfJ+l+s0gUSX4sFPIMFp96 mDQxaKa+F3L7NxuqZP0zp9qvRT/v52tUm+dhuV1oEXv/lPuZjgrWREQE8FKh2QESOO30a8kdI CFbOMN1vrt+uZg= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The Supermicro X9SCi-LN4F server mainboard has a two LEDs and a button under the control of the BMC. This patch makes them accessible under Linux running on the BMC. Signed-off-by: Jonathan Neuschäfer --- v4-v5: - no changes v3: - Adjust to schema changes v2: - https://lore.kernel.org/lkml/20211207210823.1975632-9-j.neuschaefer@gmx.net/ - Adjust to new GPIO controller names - Explicitly set pinmux to GPIO for GPIO keys and LEDs v1: - https://lore.kernel.org/lkml/20210602120329.2444672-9-j.neuschaefer@gmx.net/ --- .../nuvoton-wpcm450-supermicro-x9sci-ln4f.dts | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) -- 2.34.1 diff --git a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts index 83f27fbf4e939..3ee61251a16d0 100644 --- a/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts +++ b/arch/arm/boot/dts/nuvoton-wpcm450-supermicro-x9sci-ln4f.dts @@ -8,6 +8,9 @@ #include "nuvoton-wpcm450.dtsi" +#include +#include + / { model = "Supermicro X9SCi-LN4F BMC"; compatible = "supermicro,x9sci-ln4f-bmc", "nuvoton,wpcm450"; @@ -20,6 +23,46 @@ memory@0 { device_type = "memory"; reg = <0 0x08000000>; /* 128 MiB */ }; + + gpio-keys { + compatible = "gpio-keys"; + pinctrl-names = "default"; + pinctrl-0 = <&key_pins>; + + uid { + label = "UID button"; + linux,code = ; + gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; + }; + }; + + gpio-leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&led_pins>; + + uid { + label = "UID"; + gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>; + }; + + heartbeat { + label = "heartbeat"; + gpios = <&gpio1 4 GPIO_ACTIVE_LOW>; + }; + }; +}; + +&pinctrl { + key_pins: mux-keys { + groups = "gspi", "sspi"; + function = "gpio"; + }; + + led_pins: mux-leds { + groups = "hg3", "hg0", "pwm4"; + function = "gpio"; + }; }; &serial0 {