--- /dev/null
+From 636a1e697555e73c28cdd6952a409edbfdd16475 Mon Sep 17 00:00:00 2001
+From: Chris Blake <chrisrblake93@gmail.com>
+Date: Mon, 9 Aug 2021 19:40:21 -0500
+Subject: platform/x86: add meraki-mx100 platform driver
+
+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 <chunkeey@gmail.com>
+Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
+Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
+Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
+Link: https://lore.kernel.org/r/20210810004021.2538308-1-chrisrblake93@gmail.com
+Reviewed-by: Hans de Goede <hdegoede@redhat.com>
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+---
+ drivers/platform/x86/Kconfig | 13 ++
+ drivers/platform/x86/Makefile | 3 +
+ drivers/platform/x86/meraki-mx100.c | 230 ++++++++++++++++++++++++++++++++++++
+ 3 files changed, 246 insertions(+)
+ create mode 100644 drivers/platform/x86/meraki-mx100.c
+
+diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
+index 6ad35158ae4ef..432d72170b003 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 5edfdc2ea7f29..9bb3c3f773864 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 0000000000000..3751ed36a980a
+--- /dev/null
++++ b/drivers/platform/x86/meraki-mx100.c
+@@ -0,0 +1,230 @@
++// 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 <chrisrblake93@gmail.com>
++ */
++
++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
++
++#include <linux/dmi.h>
++#include <linux/err.h>
++#include <linux/gpio_keys.h>
++#include <linux/gpio/machine.h>
++#include <linux/input.h>
++#include <linux/io.h>
++#include <linux/kernel.h>
++#include <linux/leds.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#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",
++ },
++ {
++ .name = "mx100:green:ha",
++ },
++ {
++ .name = "mx100:orange:ha",
++ },
++ {
++ .name = "mx100:green:usb",
++ },
++ {
++ .name = "mx100:orange:usb",
++ },
++};
++
++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)
++{
++ int ret;
++
++ 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));
++ if (IS_ERR(tink_leds_pdev)) {
++ ret = PTR_ERR(tink_leds_pdev);
++ goto err;
++ }
++
++ tink_keys_pdev = tink_create_dev("gpio-keys-polled",
++ &tink_buttons_pdata, sizeof(tink_buttons_pdata));
++ if (IS_ERR(tink_keys_pdev)) {
++ ret = PTR_ERR(tink_keys_pdev);
++ platform_device_unregister(tink_leds_pdev);
++ goto err;
++ }
++
++ return 0;
++
++err:
++ gpiod_remove_lookup_table(&tink_keys_table);
++ gpiod_remove_lookup_table(&tink_leds_table);
++ return ret;
++}
++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 <chrisrblake93@gmail.com>");
++MODULE_DESCRIPTION("Cisco Meraki MX100 Platform Driver");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS("platform:meraki-mx100");
+--
+cgit 1.2.3-1.el7
projects / openwrt / staging / hauke.git / commitdiff