From patchwork Mon Aug 9 12:13:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris X-Patchwork-Id: 1515036 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=VadWKszY; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4Gjw3v3KZfz9sWS for ; Mon, 9 Aug 2021 22:14:03 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233193AbhHIMOV (ORCPT ); Mon, 9 Aug 2021 08:14:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42388 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234645AbhHIMOM (ORCPT ); Mon, 9 Aug 2021 08:14:12 -0400 Received: from mail-il1-x136.google.com (mail-il1-x136.google.com [IPv6:2607:f8b0:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 80AD9C0613D3; Mon, 9 Aug 2021 05:13:52 -0700 (PDT) Received: by mail-il1-x136.google.com with SMTP id f8so11156034ilr.4; Mon, 09 Aug 2021 05:13:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PQACd5GWebR2qRbsmRwc5hEdO7V8PUPVaRknhZhjXJw=; b=VadWKszYdfnW6JFMRIbZuXZly14NrB9m2a4O5+hSJXGyFegCCxx1uVghyOniEk+nym a7M1iTgcnwLOhzb+HmwUABwpaSVvkOMun85pis83HvdCFEWNafUn0fsUMeBW7fM/07jt vn5LJ2jZTHZ7K+ymORSCrih2CvxQfkO7yvWzFKPk7YbT+MpyqbKTnNo+5/Q2lz/tkflm uAvl6vOHoThD9HK0c+P1NXvXf30wH9LgI2K74PJZsdnljA9o1vaJ6zpXCfk9ViF4b9j2 Gk/SZOzS2Xa3utrgiq04xP6nW3BeWJpiB+IdK/d4wcx0J44h7+gRWV8zOCDFXRIcIHWD w14A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=PQACd5GWebR2qRbsmRwc5hEdO7V8PUPVaRknhZhjXJw=; b=IoX5Tm1W+Yh/I/NiVj8qnX6KraWEA8MfcMblPbXcR+dHCdmtPQgmZu4eSfa5Hk3hDO ymi15xJF9foUwqojMRz8lo3ON6BZBiLhroYvxa7kY/Xqut13agseLm+/BAkntlBL3Ena Mpuio9gXq/xYDSoQ8HH6+A2V+vzrMQ9Sg6mEjQ6ANajIxeLGDT5TplD6miQpnZBTLeyn yiMdMCgVkEFkmH1d8jvlX1bRSQahHYP1jdVs/XHKcVY3nKHxflH5/b03P6bMWRFu9tSY YA6Bl9IxeO9Eq01aBCp/r9HpmU3RWfxANPDzulMDhcyJTvlRdwWOvJCc234E3gGAJGtr kaiA== X-Gm-Message-State: AOAM530DtP/P3zyzDnm/w86IyGDNNvogJHCPnNZYYjaop/bgUhczNFKv 0SyyCtbJJ3wyVuvLowc03zdxglZ6jKQwuvIj X-Google-Smtp-Source: ABdhPJxzDZwTtPvYu6bOl+0pSkoNfw13DoVIalI5hTjSxXuaPcSVd2eIGmm5KQTM7n1SSD7QCnXfmg== X-Received: by 2002:a92:7f03:: with SMTP id a3mr193811ild.254.1628511231582; Mon, 09 Aug 2021 05:13:51 -0700 (PDT) Received: from Crosshair-VIII-Hero.lan ([2600:6c46:7d7f:ec00::a11]) by smtp.gmail.com with ESMTPSA id w10sm2013736ioc.55.2021.08.09.05.13.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Aug 2021 05:13:51 -0700 (PDT) From: Chris Blake To: platform-driver-x86@vger.kernel.org, linux-gpio@vger.kernel.org, chunkeey@gmail.com, hdegoede@redhat.com, andy.shevchenko@gmail.com Cc: Chris Blake Subject: [PATCH v3] platform/x86: add meraki-mx100 platform driver Date: Mon, 9 Aug 2021 07:13:45 -0500 Message-Id: <20210809121345.967597-1-chrisrblake93@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org This adds platform support for the Cisco Meraki MX100 (Tinkerbell) network appliance. This sets up the network LEDs and Reset button. Depends-on: ef0eea5b151ae ("mfd: lpc_ich: Enable GPIO driver for DH89xxCC") Co-developed-by: Christian Lamparter Signed-off-by: Christian Lamparter Signed-off-by: Chris Blake Reviewed-by: Andy Shevchenko --- Changelog: V3: Additional cleanups, formatting changes V2: Move to using gpiod lookup tables, misc cleanups V1: Initial Patch drivers/platform/x86/Kconfig | 13 ++ drivers/platform/x86/Makefile | 3 + drivers/platform/x86/meraki-mx100.c | 202 ++++++++++++++++++++++++++++ 3 files changed, 218 insertions(+) create mode 100644 drivers/platform/x86/meraki-mx100.c diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 7d385c3b2239..8d70176e335f 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -302,6 +302,19 @@ config ASUS_NB_WMI If you have an ACPI-WMI compatible Asus Notebook, say Y or M here. +config MERAKI_MX100 + tristate "Cisco Meraki MX100 Platform Driver" + depends on GPIOLIB + depends on GPIO_ICH + depends on LEDS_CLASS + select LEDS_GPIO + help + This driver provides support for the front button and LEDs on + the Cisco Meraki MX100 (Tinkerbell) 1U appliance. + + To compile this driver as a module, choose M here: the module + will be called meraki-mx100. + config EEEPC_LAPTOP tristate "Eee PC Hotkey Driver" depends on ACPI diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile index 7ee369aab10d..25c5aee1cde7 100644 --- a/drivers/platform/x86/Makefile +++ b/drivers/platform/x86/Makefile @@ -39,6 +39,9 @@ obj-$(CONFIG_ASUS_NB_WMI) += asus-nb-wmi.o obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o obj-$(CONFIG_EEEPC_WMI) += eeepc-wmi.o +# Cisco/Meraki +obj-$(CONFIG_MERAKI_MX100) += meraki-mx100.o + # Dell obj-$(CONFIG_X86_PLATFORM_DRIVERS_DELL) += dell/ diff --git a/drivers/platform/x86/meraki-mx100.c b/drivers/platform/x86/meraki-mx100.c new file mode 100644 index 000000000000..eebbd0a3d806 --- /dev/null +++ b/drivers/platform/x86/meraki-mx100.c @@ -0,0 +1,202 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Cisco Meraki MX100 (Tinkerbell) board platform driver + * + * Based off of arch/x86/platform/meraki/tink.c from the + * Meraki GPL release meraki-firmware-sources-r23-20150601 + * + * Format inspired by platform/x86/pcengines-apuv2.c + * + * Copyright (C) 2021 Chris Blake + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define TINK_GPIO_DRIVER_NAME "gpio_ich" + +/* LEDs */ +static const struct gpio_led tink_leds[] = { + { + .name = "mx100:green:internet", + .default_trigger = "default-on", + }, + { + .name = "mx100:green:lan2", + }, + { + .name = "mx100:green:lan3", + }, + { + .name = "mx100:green:lan4", + }, + { + .name = "mx100:green:lan5", + }, + { + .name = "mx100:green:lan6", + }, + { + .name = "mx100:green:lan7", + }, + { + .name = "mx100:green:lan8", + }, + { + .name = "mx100:green:lan9", + }, + { + .name = "mx100:green:lan10", + }, + { + .name = "mx100:green:lan11", + }, +}; + +static const struct gpio_led_platform_data tink_leds_pdata = { + .num_leds = ARRAY_SIZE(tink_leds), + .leds = tink_leds, +}; + +static struct gpiod_lookup_table tink_leds_table = { + .dev_id = "leds-gpio", + .table = { + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 11, + NULL, 0, GPIO_ACTIVE_LOW), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 18, + NULL, 1, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 20, + NULL, 2, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 22, + NULL, 3, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 23, + NULL, 4, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 32, + NULL, 5, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 34, + NULL, 6, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 35, + NULL, 7, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 36, + NULL, 8, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 37, + NULL, 9, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 48, + NULL, 10, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 16, + NULL, 11, GPIO_ACTIVE_LOW), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 7, + NULL, 12, GPIO_ACTIVE_LOW), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 21, + NULL, 13, GPIO_ACTIVE_LOW), + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 19, + NULL, 14, GPIO_ACTIVE_LOW), + {} /* Terminating entry */ + } +}; + +/* Reset Button */ +static struct gpio_keys_button tink_buttons[] = { + { + .desc = "Reset", + .type = EV_KEY, + .code = KEY_RESTART, + .active_low = 1, + .debounce_interval = 100, + }, +}; + +static const struct gpio_keys_platform_data tink_buttons_pdata = { + .buttons = tink_buttons, + .nbuttons = ARRAY_SIZE(tink_buttons), + .poll_interval = 20, + .rep = 0, + .name = "mx100-keys", +}; + +static struct gpiod_lookup_table tink_keys_table = { + .dev_id = "gpio-keys-polled", + .table = { + GPIO_LOOKUP_IDX(TINK_GPIO_DRIVER_NAME, 60, + NULL, 0, GPIO_ACTIVE_LOW), + {} /* Terminating entry */ + } +}; + +/* Board setup */ +static const struct dmi_system_id tink_systems[] __initconst = { + { + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Cisco"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MX100-HW"), + }, + }, + {} /* Terminating entry */ +}; +MODULE_DEVICE_TABLE(dmi, tink_systems); + +static struct platform_device *tink_leds_pdev; +static struct platform_device *tink_keys_pdev; + +static struct platform_device * __init tink_create_dev( + const char *name, const void *pdata, size_t sz) +{ + struct platform_device *pdev; + + pdev = platform_device_register_data(NULL, + name, PLATFORM_DEVID_NONE, pdata, sz); + if (IS_ERR(pdev)) + pr_err("failed registering %s: %ld\n", name, PTR_ERR(pdev)); + + return pdev; +} + +static int __init tink_board_init(void) +{ + if (!dmi_first_match(tink_systems)) + return -ENODEV; + + /* + * We need to make sure that GPIO60 isn't set to native mode as is default since it's our + * Reset Button. To do this, write to GPIO_USE_SEL2 to have GPIO60 set to GPIO mode. + * This is documented on page 1609 of the PCH datasheet, order number 327879-005US + */ + outl(inl(0x530) | BIT(28), 0x530); + + gpiod_add_lookup_table(&tink_leds_table); + gpiod_add_lookup_table(&tink_keys_table); + + tink_leds_pdev = tink_create_dev("leds-gpio", + &tink_leds_pdata, sizeof(tink_leds_pdata)); + + tink_keys_pdev = tink_create_dev("gpio-keys-polled", + &tink_buttons_pdata, sizeof(tink_buttons_pdata)); + + return 0; +} +module_init(tink_board_init); + +static void __exit tink_board_exit(void) +{ + platform_device_unregister(tink_keys_pdev); + platform_device_unregister(tink_leds_pdev); + gpiod_remove_lookup_table(&tink_keys_table); + gpiod_remove_lookup_table(&tink_leds_table); +} +module_exit(tink_board_exit); + +MODULE_AUTHOR("Chris Blake "); +MODULE_DESCRIPTION("Cisco Meraki MX100 Platform Driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:meraki-mx100");