dab5a44067
n As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
68 lines
1.8 KiB
Diff
68 lines
1.8 KiB
Diff
From 883257ef0684a00823501a440e05f3eb24c1de73 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Thu, 12 May 2016 09:04:20 +0100
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Subject: [PATCH] BCM270X_DT: Fix the tinylcd35 overlay RTC support
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Now that overlay parameters are applied before the merge (a requirement
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for kernel runtime overlays) it is illegal for parameters/overrides to
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target nodes in the base DTB. Solve the problem of only enabling I2C
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when an RTC option is used by making the RTC fragments conditional,
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and including the required status="okay" within the fragments.
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/tinylcd35-overlay.dts | 18 ++++++++++--------
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1 file changed, 10 insertions(+), 8 deletions(-)
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--- a/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/tinylcd35-overlay.dts
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@@ -132,28 +132,32 @@
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fragment@5 {
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target = <&i2c1>;
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- __overlay__ {
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+ __dormant__ {
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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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pcf8563: pcf8563@51 {
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compatible = "nxp,pcf8563";
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reg = <0x51>;
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- status = "disabled";
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+ status = "okay";
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};
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};
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};
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fragment@6 {
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target = <&i2c1>;
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- __overlay__ {
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+ __dormant__ {
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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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ds1307: ds1307@68 {
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compatible = "maxim,ds1307";
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reg = <0x68>;
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- status = "disabled";
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+ status = "okay";
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};
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};
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};
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@@ -213,10 +217,8 @@
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<&tinylcd35_ts>,"interrupts:0",
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<&tinylcd35_ts>,"pendown-gpio:4";
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xohms = <&tinylcd35_ts>,"ti,x-plate-ohms;0";
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- rtc-pcf = <&i2c1>,"status",
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- <&pcf8563>,"status";
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- rtc-ds = <&i2c1>,"status",
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- <&ds1307>,"status";
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+ rtc-pcf = <0>,"=5";
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+ rtc-ds = <0>,"=6";
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keypad = <&keypad>,"status";
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};
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};
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