bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 235 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch b/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch
new file mode 100644
index 0000000000..2b1257526f
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0297-leds-Add-the-actpwr-trigger.patch
@@ -0,0 +1,235 @@
+From 136ae921cea7e7a189ee99d126253631f880ded0 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 13 Jul 2020 10:33:19 +0100
+Subject: [PATCH] leds: Add the actpwr trigger
+
+The actpwr trigger is a meta trigger that cycles between an inverted
+mmc0 and default-on. It is written in a way that could fairly easily
+be generalised to support alternative sets of source triggers.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ drivers/leds/trigger/Kconfig          |  11 ++
+ drivers/leds/trigger/Makefile         |   1 +
+ drivers/leds/trigger/ledtrig-actpwr.c | 190 ++++++++++++++++++++++++++
+ 3 files changed, 202 insertions(+)
+ create mode 100644 drivers/leds/trigger/ledtrig-actpwr.c
+
+--- a/drivers/leds/trigger/Kconfig
++++ b/drivers/leds/trigger/Kconfig
+@@ -151,4 +151,15 @@ config LEDS_TRIGGER_AUDIO
+ 	  the audio mute and mic-mute changes.
+ 	  If unsure, say N
+ 
++config LEDS_TRIGGER_ACTPWR
++	tristate "ACT/PWR Input Trigger"
++	depends on LEDS_TRIGGERS
++	help
++	  This trigger is intended for platforms that have one software-
++	  controllable LED and no dedicated activity or power LEDs, hence the
++	  need to make the one LED perform both functions. It cycles between
++	  default-on and an inverted mmc0 every 500ms, guaranteeing that it is
++	  on for at least half of the time.
++	  If unsure, say N.
++
+ endif # LEDS_TRIGGERS
+--- a/drivers/leds/trigger/Makefile
++++ b/drivers/leds/trigger/Makefile
+@@ -16,3 +16,4 @@ obj-$(CONFIG_LEDS_TRIGGER_PANIC)	+= ledt
+ obj-$(CONFIG_LEDS_TRIGGER_NETDEV)	+= ledtrig-netdev.o
+ obj-$(CONFIG_LEDS_TRIGGER_PATTERN)	+= ledtrig-pattern.o
+ obj-$(CONFIG_LEDS_TRIGGER_AUDIO)	+= ledtrig-audio.o
++obj-$(CONFIG_LEDS_TRIGGER_ACTPWR)	+= ledtrig-actpwr.o
+--- /dev/null
++++ b/drivers/leds/trigger/ledtrig-actpwr.c
+@@ -0,0 +1,190 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Activity/power trigger
++ *
++ * Copyright (C) 2020 Raspberry Pi (Trading) Ltd.
++ *
++ * Based on Atsushi Nemoto's ledtrig-heartbeat.c, although there may be
++ * nothing left of the original now.
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/timer.h>
++#include <linux/leds.h>
++#include "../leds.h"
++
++enum {
++	TRIG_ACT,
++	TRIG_PWR,
++
++	TRIG_COUNT
++};
++
++struct actpwr_trig_src {
++	const char *name;
++	int interval;
++	bool invert;
++};
++
++struct actpwr_vled {
++	struct led_classdev cdev;
++	struct actpwr_trig_data *parent;
++	enum led_brightness value;
++	unsigned int interval;
++	bool invert;
++};
++
++struct actpwr_trig_data {
++	struct led_trigger trig;
++	struct actpwr_vled virt_leds[TRIG_COUNT];
++	struct actpwr_vled *active;
++	struct timer_list timer;
++	int next_active;
++};
++
++static int actpwr_trig_activate(struct led_classdev *led_cdev);
++static void actpwr_trig_deactivate(struct led_classdev *led_cdev);
++
++static const struct actpwr_trig_src actpwr_trig_sources[TRIG_COUNT] = {
++	[TRIG_ACT] = { "mmc0", 500, true },
++	[TRIG_PWR] = { "default-on", 500, false },
++};
++
++static struct actpwr_trig_data actpwr_data = {
++	{
++		.name     = "actpwr",
++		.activate = actpwr_trig_activate,
++		.deactivate = actpwr_trig_deactivate,
++	}
++};
++
++static void actpwr_brightness_set(struct led_classdev *led_cdev,
++				  enum led_brightness value)
++{
++	struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled,
++					       cdev);
++	struct actpwr_trig_data *trig = vled->parent;
++
++	if (vled->invert)
++		value = !value;
++	vled->value = value;
++
++	if (vled == trig->active)
++		led_trigger_event(&trig->trig, value);
++}
++
++static int actpwr_brightness_set_blocking(struct led_classdev *led_cdev,
++					  enum led_brightness value)
++{
++	actpwr_brightness_set(led_cdev, value);
++	return 0;
++}
++
++static enum led_brightness actpwr_brightness_get(struct led_classdev *led_cdev)
++{
++	struct actpwr_vled *vled = container_of(led_cdev, struct actpwr_vled,
++					      cdev);
++
++	return vled->value;
++}
++
++static void actpwr_trig_cycle(struct timer_list *t)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++	struct actpwr_vled *active;
++
++	active = &trig->virt_leds[trig->next_active];
++	trig->active = active;
++	trig->next_active = (trig->next_active + 1) % TRIG_COUNT;
++
++	led_trigger_event(&trig->trig, active->value);
++
++	mod_timer(&trig->timer, jiffies + msecs_to_jiffies(active->interval));
++}
++
++static int actpwr_trig_activate(struct led_classdev *led_cdev)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++
++	/* Start the timer if this is the first LED */
++	if (!trig->active)
++		actpwr_trig_cycle(&trig->timer);
++	else
++		led_set_brightness_nosleep(led_cdev, trig->active->value);
++
++	return 0;
++}
++
++static void actpwr_trig_deactivate(struct led_classdev *led_cdev)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++
++	if (list_empty(&trig->trig.led_cdevs)) {
++		del_timer_sync(&trig->timer);
++		trig->active = NULL;
++	}
++}
++
++static int __init actpwr_trig_init(void)
++{
++	struct actpwr_trig_data *trig  = &actpwr_data;
++	int ret = 0;
++	int i;
++
++	timer_setup(&trig->timer, actpwr_trig_cycle, 0);
++
++	/* Register one "LED" for each source trigger */
++	for (i = 0; i < TRIG_COUNT; i++)
++	{
++		struct actpwr_vled *vled = &trig->virt_leds[i];
++		struct led_classdev *cdev = &vled->cdev;
++		const struct actpwr_trig_src *src = &actpwr_trig_sources[i];
++
++		vled->parent = trig;
++		vled->interval = src->interval;
++		vled->invert = src->invert;
++		cdev->name = src->name;
++		cdev->brightness_set = actpwr_brightness_set;
++		cdev->brightness_set_blocking = actpwr_brightness_set_blocking;
++		cdev->brightness_get = actpwr_brightness_get;
++		cdev->default_trigger = src->name;
++		ret = led_classdev_register(NULL, cdev);
++		if (ret)
++			goto error_classdev;
++	}
++
++	ret = led_trigger_register(&trig->trig);
++	if (ret)
++		goto error_classdev;
++
++	return 0;
++
++error_classdev:
++	while (i > 0)
++	{
++		i--;
++		led_classdev_unregister(&trig->virt_leds[i].cdev);
++	}
++
++	return ret;
++}
++
++static void __exit actpwr_trig_exit(void)
++{
++	int i;
++
++	led_trigger_unregister(&actpwr_data.trig);
++	for (i = 0; i < TRIG_COUNT; i++)
++	{
++		led_classdev_unregister(&actpwr_data.virt_leds[i].cdev);
++	}
++}
++
++module_init(actpwr_trig_init);
++module_exit(actpwr_trig_exit);
++
++MODULE_AUTHOR("Phil Elwell <phil@raspberrypi.com>");
++MODULE_DESCRIPTION("ACT/PWR LED trigger");
++MODULE_LICENSE("GPL v2");