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authorÁlvaro Fernández Rojas <noltari@gmail.com>2019-07-31 18:23:26 +0200
committerÁlvaro Fernández Rojas <noltari@gmail.com>2019-08-02 18:51:32 +0200
commit19226502bf6393706defe7f049c587b32c9b4f33 (patch)
tree0bff89a72b7006051a6eec1ac3c0c9250490cf4f /target/linux/brcm2708/patches-4.19/950-0289-overlays-Update-README-with-removal-of-lirc-rpi.patch
parent66458c49aa14ebc9ba2e4f9b6a323b8ff122807b (diff)
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brcm2708: update to latest patches from the RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0289-overlays-Update-README-with-removal-of-lirc-rpi.patch')
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1 files changed, 91 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0289-overlays-Update-README-with-removal-of-lirc-rpi.patch b/target/linux/brcm2708/patches-4.19/950-0289-overlays-Update-README-with-removal-of-lirc-rpi.patch
new file mode 100644
index 0000000000..2ef67c8038
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0289-overlays-Update-README-with-removal-of-lirc-rpi.patch
@@ -0,0 +1,91 @@
+From 2a7770becf1b2bf289836ea19dcc2f6744d7e413 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Wed, 5 Dec 2018 11:56:40 +0000
+Subject: [PATCH 289/725] overlays: Update README with removal of lirc-rpi
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/README | 57 ++++++++++++-------------------
+ 1 file changed, 21 insertions(+), 36 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -56,23 +56,29 @@ have its contents deleted (or commented
+ Using Overlays
+ ==============
+
+-Overlays are loaded using the "dtoverlay" directive. As an example, consider
+-the popular lirc-rpi module, the Linux Infrared Remote Control driver. In the
+-pre-DT world this would be loaded from /etc/modules, with an explicit
+-"modprobe lirc-rpi" command, or programmatically by lircd. With DT enabled,
+-this becomes a line in config.txt:
+-
+- dtoverlay=lirc-rpi
+-
+-This causes the file /boot/overlays/lirc-rpi.dtbo to be loaded. By
+-default it will use GPIOs 17 (out) and 18 (in), but this can be modified using
+-DT parameters:
+-
+- dtoverlay=lirc-rpi,gpio_out_pin=17,gpio_in_pin=13
+-
+-Parameters always have default values, although in some cases (e.g. "w1-gpio")
+-it is necessary to provided multiple overlays in order to get the desired
+-behaviour. See the list of overlays below for a description of the parameters
++Overlays are loaded using the "dtoverlay" config.txt setting. As an example,
++consider I2C Real Time Clock drivers. In the pre-DT world these would be loaded
++by writing a magic string comprising a device identifier and an I2C address to
++a special file in /sys/class/i2c-adapter, having first loaded the driver for
++the I2C interface and the RTC device - something like this:
++
++ modprobe i2c-bcm2835
++ modprobe rtc-ds1307
++ echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device
++
++With DT enabled, this becomes a line in config.txt:
++
++ dtoverlay=i2c-rtc,ds1307
++
++This causes the file /boot/overlays/i2c-rtc.dtbo to be loaded and a "node"
++describing the DS1307 I2C device to be added to the Device Tree for the Pi. By
++default it usees address 0x68, but this can be modified with an additional DT
++parameter:
++
++ dtoverlay=i2c-rtc,ds1307,addr=0x68
++
++Parameters usually have default values, although certain parameters are
++mandatory. See the list of overlays below for a description of the parameters
+ and their defaults.
+
+ The Overlay and Parameter Reference
+@@ -1135,29 +1141,8 @@ Params: <None>
+
+
+ Name: lirc-rpi
+-Info: Configures lirc-rpi (Linux Infrared Remote Control for Raspberry Pi)
+- Consult the module documentation for more details.
+-Load: dtoverlay=lirc-rpi,<param>=<val>
+-Params: gpio_out_pin GPIO for output (default "17")
+-
+- gpio_in_pin GPIO for input (default "18")
+-
+- gpio_in_pull Pull up/down/off on the input pin
+- (default "down")
+-
+- sense Override the IR receive auto-detection logic:
+- "0" = force active-high
+- "1" = force active-low
+- "-1" = use auto-detection
+- (default "-1")
+-
+- softcarrier Turn the software carrier "on" or "off"
+- (default "on")
+-
+- invert "on" = invert the output pin (default "off")
+-
+- debug "on" = enable additional debug messages
+- (default "off")
++Info: This overlay has been deprecated and removed - see gpio-ir
++Load: <Deprecated>
+
+
+ Name: ltc294x