mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 08:21:14 +00:00
79 lines
2.8 KiB
Diff
79 lines
2.8 KiB
Diff
From 531ae7af75b2be2867814693f069fb51e3155341 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Wed, 12 Jun 2019 17:32:11 +0100
|
|
Subject: [PATCH 515/806] overlays: Update w1-gpio and w1-gpio-pullup
|
|
|
|
The parasitic power (power on data) feature is now enabled by
|
|
default in the w1-gpio driver, so update the README and make the
|
|
"pullup" parameter a no-op.
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
|
|
---
|
|
arch/arm/boot/dts/overlays/README | 9 ++-------
|
|
arch/arm/boot/dts/overlays/w1-gpio-overlay.dts | 3 +--
|
|
arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts | 3 +--
|
|
3 files changed, 4 insertions(+), 11 deletions(-)
|
|
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -2261,9 +2261,7 @@ Info: Configures the w1-gpio Onewire i
|
|
Use this overlay if you *don't* need a GPIO to drive an external pullup.
|
|
Load: dtoverlay=w1-gpio,<param>=<val>
|
|
Params: gpiopin GPIO for I/O (default "4")
|
|
-
|
|
- pullup Non-zero, "on", or "y" to enable the parasitic
|
|
- power (2-wire, power-on-data) feature
|
|
+ pullup Now enabled by default (ignored)
|
|
|
|
|
|
Name: w1-gpio-pullup
|
|
@@ -2271,11 +2269,8 @@ Info: Configures the w1-gpio Onewire i
|
|
Use this overlay if you *do* need a GPIO to drive an external pullup.
|
|
Load: dtoverlay=w1-gpio-pullup,<param>=<val>
|
|
Params: gpiopin GPIO for I/O (default "4")
|
|
-
|
|
- pullup Non-zero, "on", or "y" to enable the parasitic
|
|
- power (2-wire, power-on-data) feature
|
|
-
|
|
extpullup GPIO for external pullup (default "5")
|
|
+ pullup Now enabled by default (ignored)
|
|
|
|
|
|
Name: wittypi
|
|
--- a/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
|
|
+++ b/arch/arm/boot/dts/overlays/w1-gpio-overlay.dts
|
|
@@ -14,7 +14,6 @@
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&w1_pins>;
|
|
gpios = <&gpio 4 0>;
|
|
- rpi,parasitic-power = <0>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
@@ -36,6 +35,6 @@
|
|
<&w1>,"reg:0",
|
|
<&w1_pins>,"brcm,pins:0",
|
|
<&w1_pins>,"reg:0";
|
|
- pullup = <&w1>,"rpi,parasitic-power:0";
|
|
+ pullup; // Silently ignore unneeded parameter
|
|
};
|
|
};
|
|
--- a/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
|
|
+++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-overlay.dts
|
|
@@ -14,7 +14,6 @@
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&w1_pins>;
|
|
gpios = <&gpio 4 0>, <&gpio 5 1>;
|
|
- rpi,parasitic-power = <0>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
@@ -38,6 +37,6 @@
|
|
<&w1_pins>,"reg:0";
|
|
extpullup = <&w1>,"gpios:16",
|
|
<&w1_pins>,"brcm,pins:4";
|
|
- pullup = <&w1>,"rpi,parasitic-power:0";
|
|
+ pullup; // Silently ignore unneeded parameter
|
|
};
|
|
};
|