From a8d4d71c41ff0158c2026cac5981e39702167da9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Thu, 7 Apr 2016 21:25:10 +0200 Subject: brcm2708: update to latest version MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit As usual these patches were extracted from the raspberry pi repo: https://github.com/raspberrypi/linux/commits/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas --- ...Add-pwr_led-and-the-required-input-trigge.patch | 170 --------------------- 1 file changed, 170 deletions(-) delete mode 100644 target/linux/brcm2708/patches-4.4/0074-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch (limited to 'target/linux/brcm2708/patches-4.4/0074-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch') diff --git a/target/linux/brcm2708/patches-4.4/0074-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch b/target/linux/brcm2708/patches-4.4/0074-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch deleted file mode 100644 index 2c5fe9907f..0000000000 --- a/target/linux/brcm2708/patches-4.4/0074-BCM270x_DT-Add-pwr_led-and-the-required-input-trigge.patch +++ /dev/null @@ -1,170 +0,0 @@ -From a2b52a3af1314e2b691d9518afb3051193758671 Mon Sep 17 00:00:00 2001 -From: Phil Elwell -Date: Fri, 6 Feb 2015 13:50:57 +0000 -Subject: [PATCH 074/170] BCM270x_DT: Add pwr_led, and the required "input" - trigger - -The "input" trigger makes the associated GPIO an input. This is to support -the Raspberry Pi PWR LED, which is driven by external hardware in normal use. - -N.B. pwr_led is not available on Model A or B boards. - -leds-gpio: Implement the brightness_get method - -The power LED uses some clever logic that means it is driven -by a voltage measuring circuit when configured as input, otherwise -it is driven by the GPIO output value. This patch wires up the -brightness_get method for leds-gpio so that user-space can monitor -the LED value via /sys/class/gpio/led1/brightness. Using the input -trigger this returns an indication of the system power health, -otherwise it is just whatever value the trigger has written most -recently. - -See: https://github.com/raspberrypi/linux/issues/1064 ---- - drivers/leds/leds-gpio.c | 18 +++++++++++- - drivers/leds/trigger/Kconfig | 7 +++++ - drivers/leds/trigger/Makefile | 1 + - drivers/leds/trigger/ledtrig-input.c | 54 ++++++++++++++++++++++++++++++++++++ - include/linux/leds.h | 3 ++ - 5 files changed, 82 insertions(+), 1 deletion(-) - create mode 100644 drivers/leds/trigger/ledtrig-input.c - ---- a/drivers/leds/leds-gpio.c -+++ b/drivers/leds/leds-gpio.c -@@ -42,6 +42,13 @@ static void gpio_led_work(struct work_st - led_dat->platform_gpio_blink_set(led_dat->gpiod, - led_dat->new_level, NULL, NULL); - led_dat->blinking = 0; -+ } else if (led_dat->cdev.flags & SET_GPIO_INPUT) { -+ gpiod_direction_input(led_dat->gpiod); -+ led_dat->cdev.flags &= ~SET_GPIO_INPUT; -+ } -+ else if (led_dat->cdev.flags & SET_GPIO_OUTPUT) { -+ gpiod_direction_output(led_dat->gpiod, led_dat->new_level); -+ led_dat->cdev.flags &= ~SET_GPIO_OUTPUT; - } else - gpiod_set_value_cansleep(led_dat->gpiod, led_dat->new_level); - } -@@ -62,7 +69,8 @@ static void gpio_led_set(struct led_clas - * seem to have a reliable way to know if we're already in one; so - * let's just assume the worst. - */ -- if (led_dat->can_sleep) { -+ if (led_dat->can_sleep || -+ (led_dat->cdev.flags & (SET_GPIO_INPUT | SET_GPIO_OUTPUT) )) { - led_dat->new_level = level; - schedule_work(&led_dat->work); - } else { -@@ -75,6 +83,13 @@ static void gpio_led_set(struct led_clas - } - } - -+static enum led_brightness gpio_led_get(struct led_classdev *led_cdev) -+{ -+ struct gpio_led_data *led_dat = -+ container_of(led_cdev, struct gpio_led_data, cdev); -+ return gpiod_get_value_cansleep(led_dat->gpiod) ? LED_FULL : LED_OFF; -+} -+ - static int gpio_blink_set(struct led_classdev *led_cdev, - unsigned long *delay_on, unsigned long *delay_off) - { -@@ -131,6 +146,7 @@ static int create_gpio_led(const struct - led_dat->cdev.blink_set = gpio_blink_set; - } - led_dat->cdev.brightness_set = gpio_led_set; -+ led_dat->cdev.brightness_get = gpio_led_get; - if (template->default_state == LEDS_GPIO_DEFSTATE_KEEP) - state = !!gpiod_get_value_cansleep(led_dat->gpiod); - else ---- a/drivers/leds/trigger/Kconfig -+++ b/drivers/leds/trigger/Kconfig -@@ -126,4 +126,11 @@ config LEDS_TRIGGER_USBDEV - This allows LEDs to be controlled by the presence/activity of - an USB device. If unsure, say N. - -+config LEDS_TRIGGER_INPUT -+ tristate "LED Input Trigger" -+ depends on LEDS_TRIGGERS -+ help -+ This allows the GPIOs assigned to be LEDs to be initialised to inputs. -+ If unsure, say Y. -+ - endif # LEDS_TRIGGERS ---- a/drivers/leds/trigger/Makefile -+++ b/drivers/leds/trigger/Makefile -@@ -8,3 +8,4 @@ obj-$(CONFIG_LEDS_TRIGGER_CPU) += ledtr - obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o - obj-$(CONFIG_LEDS_TRIGGER_TRANSIENT) += ledtrig-transient.o - obj-$(CONFIG_LEDS_TRIGGER_CAMERA) += ledtrig-camera.o -+obj-$(CONFIG_LEDS_TRIGGER_INPUT) += ledtrig-input.o ---- /dev/null -+++ b/drivers/leds/trigger/ledtrig-input.c -@@ -0,0 +1,54 @@ -+/* -+ * Set LED GPIO to Input "Trigger" -+ * -+ * Copyright 2015 Phil Elwell -+ * -+ * Based on Nick Forbes's ledtrig-default-on.c. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include "../leds.h" -+ -+static void input_trig_activate(struct led_classdev *led_cdev) -+{ -+ led_cdev->flags |= SET_GPIO_INPUT; -+ led_set_brightness_async(led_cdev, 0); -+} -+ -+static void input_trig_deactivate(struct led_classdev *led_cdev) -+{ -+ led_cdev->flags |= SET_GPIO_OUTPUT; -+ led_set_brightness_async(led_cdev, 0); -+} -+ -+static struct led_trigger input_led_trigger = { -+ .name = "input", -+ .activate = input_trig_activate, -+ .deactivate = input_trig_deactivate, -+}; -+ -+static int __init input_trig_init(void) -+{ -+ return led_trigger_register(&input_led_trigger); -+} -+ -+static void __exit input_trig_exit(void) -+{ -+ led_trigger_unregister(&input_led_trigger); -+} -+ -+module_init(input_trig_init); -+module_exit(input_trig_exit); -+ -+MODULE_AUTHOR("Phil Elwell "); -+MODULE_DESCRIPTION("Set LED GPIO to Input \"trigger\""); -+MODULE_LICENSE("GPL"); ---- a/include/linux/leds.h -+++ b/include/linux/leds.h -@@ -48,6 +48,9 @@ struct led_classdev { - #define SET_BRIGHTNESS_ASYNC (1 << 21) - #define SET_BRIGHTNESS_SYNC (1 << 22) - #define LED_DEV_CAP_FLASH (1 << 23) -+ /* Additions for Raspberry Pi PWR LED */ -+#define SET_GPIO_INPUT (1 << 30) -+#define SET_GPIO_OUTPUT (1 << 31) - - /* Set LED brightness level */ - /* Must not sleep, use a workqueue if needed */ -- cgit v1.2.3