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https://git.openwrt.org/openwrt/openwrt.git
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8299d1f057
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>
95 lines
3.4 KiB
Diff
95 lines
3.4 KiB
Diff
From 62ae8907efb221f232126726bf4df5c9da23a8b4 Mon Sep 17 00:00:00 2001
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From: Jesse Taube <Mr.Bossman075@gmail.com>
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Date: Thu, 8 Jul 2021 16:32:16 -0400
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Subject: [PATCH] overlays: Add overlay for cap1106 capacitive touch
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sensor
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Signed-off-by: Jesse Taube <mr.bossman075@gmail.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 1 +
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arch/arm/boot/dts/overlays/README | 6 +++
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.../arm/boot/dts/overlays/cap1106-overlay.dts | 52 +++++++++++++++++++
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3 files changed, 59 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/cap1106-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -30,6 +30,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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audiosense-pi.dtbo \
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audremap.dtbo \
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balena-fin.dtbo \
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+ cap1106.dtbo \
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chipdip-i2s-master-dac.dtbo \
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cma.dtbo \
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dht11.dtbo \
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -622,6 +622,12 @@ Info: This overlay is now deprecated -
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Load: <Deprecated>
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+Name: cap1106
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+Info: Enables the ability to use the cap1106 touch sensor as a keyboard
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+Load: dtoverlay=cap1106,<param>=<val>
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+Params: int_pin GPIO pin for interrupt signal (default 23)
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+
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+
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Name: chipdip-i2s-master-dac
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Info: Configures Raspberry PI to work as I2S slave with BCLK=64Fs.
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Load: dtoverlay=chipdip-i2s-master-dac
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/cap1106-overlay.dts
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@@ -0,0 +1,52 @@
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+// Overlay for cap1106 from Microchip Semiconductor
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+// add CONFIG_KEYBOARD_CAP11XX=y
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+
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+/dts-v1/;
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+/plugin/;
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+
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+/ {
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+ compatible = "brcm,bcm2835";
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+ fragment@0 {
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+ target = <&i2c1>;
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+ __overlay__{
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+ status = "okay";
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+ cap1106: cap1106@28 {
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+ compatible = "microchip,cap1106";
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+ pinctrl-0 = <&cap1106_pins>;
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+ pinctrl-names = "default";
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+ interrupt-parent = <&gpio>;
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+ interrupts = <4 2>;
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+ reg = <0x28>;
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+ autorepeat;
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+ microchip,sensor-gain = <2>;
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+
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+ linux,keycodes = <2>, /* KEY_1 */
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+ <3>, /* KEY_2 */
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+ <4>, /* KEY_3 */
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+ <5>, /* KEY_4 */
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+ <6>, /* KEY_5 */
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+ <7>; /* KEY_6 */
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+
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ status = "okay";
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+
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+ };
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+ };
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+ };
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+ fragment@1 {
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+ target = <&gpio>;
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+ __overlay__ {
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+ cap1106_pins: cap1106_pins {
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+ brcm,pins = <4>;
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+ brcm,function = <0>; /* in */
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+ brcm,pull = <0>; /* none */
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+ };
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+ };
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+ };
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+
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+ __overrides__ {
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+ int_pin = <&cap1106>, "interrupts:0",
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+ <&cap1106_pins>, "brcm,pins:0";
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+ };
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+};
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