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950-0720-overlays-Move-fixed-clock-nodes-to-the-root.patch
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950-0720-overlays-Move-fixed-clock-nodes-to-the-root.patch
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From 805e008c18ec09c4115e4cec413642028cd9a8e2 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.com>
Date: Mon, 11 May 2020 15:12:21 +0100
Subject: [PATCH] overlays: Move "fixed-clock" nodes to the root
Apart from some special cases, device objects are only created for
nodes if they are children of a bus or the root node. "fixed-clock"
is one of the exceptions that will be instantiated wherever it is
found, but only during kernel initialisation - ruling out loading the
overlay at runtime.
Move most of the affected clocks to be children of the root, only
leaving those in overlays that could be multiply instantiated, to avoid
a potential name clash.
See: https://github.com/raspberrypi/linux/issues/3602
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
---
.../dts/overlays/audiosense-pi-overlay.dts | 14 ++++++-------
arch/arm/boot/dts/overlays/draws-overlay.dts | 12 +++++------
.../boot/dts/overlays/fe-pi-audio-overlay.dts | 2 +-
arch/arm/boot/dts/overlays/imx219-overlay.dts | 12 +++++------
.../arm/boot/dts/overlays/irs1125-overlay.dts | 17 +++++++++------
.../dts/overlays/mcp2515-can0-overlay.dts | 2 +-
.../dts/overlays/mcp2515-can1-overlay.dts | 2 +-
.../boot/dts/overlays/midi-uart0-overlay.dts | 2 +-
arch/arm/boot/dts/overlays/ov5647-overlay.dts | 17 +++++++++------
.../boot/dts/overlays/rpivid-v4l2-overlay.dts | 17 +++++++++------
.../dts/overlays/sc16is752-spi1-overlay.dts | 21 ++++++++++++-------
.../boot/dts/overlays/tc358743-overlay.dts | 17 +++++++++------
12 files changed, 80 insertions(+), 55 deletions(-)
--- a/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
+++ b/arch/arm/boot/dts/overlays/audiosense-pi-overlay.dts
@@ -24,6 +24,13 @@
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
+
+ /* audio external oscillator */
+ codec_osc: codec_osc {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <12000000>; /* 12 MHz */
+ };
};
};
@@ -44,13 +51,6 @@
#size-cells = <0>;
status = "okay";
- /* audio external oscillator */
- codec_osc: codec_osc {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <12000000>; /* 12 MHz */
- };
-
codec: tlv320aic32x4@18 {
#sound-dai-cells = <0>;
compatible = "ti,tlv320aic32x4";
--- a/arch/arm/boot/dts/overlays/draws-overlay.dts
+++ b/arch/arm/boot/dts/overlays/draws-overlay.dts
@@ -30,6 +30,12 @@
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
+
+ sc16is752_clk: sc16is752_draws_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1843200>;
+ };
};
pps: pps {
@@ -78,12 +84,6 @@
pinctrl-names = "default";
pinctrl-0 = <&sc16is752_irq>;
-
- sc16is752_clk: sc16is752_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <1843200>;
- };
};
tla2024: tla2024@48 {
--- a/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/fe-pi-audio-overlay.dts
@@ -6,7 +6,7 @@
compatible = "brcm,bcm2835";
fragment@0 {
- target = <&clocks>;
+ target-path = "/";
__overlay__ {
sgtl5000_mclk: sgtl5000_mclk {
compatible = "fixed-clock";
--- a/arch/arm/boot/dts/overlays/imx219-overlay.dts
+++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
@@ -27,12 +27,6 @@
VDIG-supply = <&imx219_vdig>; /* 1.8v */
VDDL-supply = <&imx219_vddl>; /* 1.2v */
- imx219_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <24000000>;
- };
-
port {
imx219_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -90,6 +84,12 @@
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
};
+
+ imx219_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <24000000>;
+ };
};
};
--- a/arch/arm/boot/dts/overlays/irs1125-overlay.dts
+++ b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
@@ -21,12 +21,6 @@
pwdn-gpios = <&gpio 5 0>;
clocks = <&irs1125_clk>;
- irs1125_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <26000000>;
- };
-
port {
irs1125_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -75,4 +69,15 @@
cam0-pwdn = <&irs1125>,"pwdn-gpios:4";
};
};
+
+ fragment@5 {
+ target-path = "/";
+ __overlay__ {
+ irs1125_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <26000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mcp2515-can0-overlay.dts
@@ -35,7 +35,7 @@
/* the clock/oscillator of the can-controller */
fragment@3 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
/* external oscillator of mcp2515 on SPI0.0 */
can0_osc: can0_osc {
--- a/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mcp2515-can1-overlay.dts
@@ -35,7 +35,7 @@
/* the clock/oscillator of the can-controller */
fragment@3 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
/* external oscillator of mcp2515 on spi0.1 */
can1_osc: can1_osc {
--- a/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
+++ b/arch/arm/boot/dts/overlays/midi-uart0-overlay.dts
@@ -15,7 +15,7 @@
compatible = "brcm,bcm2835";
fragment@0 {
- target-path = "/clocks";
+ target-path = "/";
__overlay__ {
midi_clk: midi_clk {
compatible = "fixed-clock";
--- a/arch/arm/boot/dts/overlays/ov5647-overlay.dts
+++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts
@@ -21,12 +21,6 @@
pwdn-gpios = <&gpio 41 1>, <&gpio 32 1>;
clocks = <&ov5647_clk>;
- ov5647_clk: camera-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <25000000>;
- };
-
port {
ov5647_0: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -77,4 +71,15 @@
cam0-led = <&ov5647>,"pwdn-gpios:16";
};
};
+
+ fragment@5 {
+ target-path = "/";
+ __overlay__ {
+ ov5647_clk: camera-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
+++ b/arch/arm/boot/dts/overlays/rpivid-v4l2-overlay.dts
@@ -26,12 +26,6 @@
clocks = <&hevc_clk>;
clock-names = "hevc";
-
- hevc_clk: hevc_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <500000000>;
- };
};
};
};
@@ -53,4 +47,15 @@
};
};
};
+
+ fragment@2 {
+ target-path = "/";
+ __overlay__ {
+ hevc_clk: hevc_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <500000000>;
+ };
+ };
+ };
};
--- a/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sc16is752-spi1-overlay.dts
@@ -38,12 +38,6 @@
#gpio-controller;
#gpio-cells = <2>;
spi-max-frequency = <4000000>;
-
- sc16is752_clk: sc16is752_clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <14745600>;
- };
};
};
};
@@ -55,8 +49,19 @@
};
};
- __overrides__ {
+ fragment@3 {
+ target-path = "/";
+ __overlay__ {
+ sc16is752_clk: sc16is752_spi1_clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <14745600>;
+ };
+ };
+ };
+
+ __overrides__ {
int_pin = <&sc16is752>,"interrupts:0";
xtal = <&sc16is752_clk>,"clock-frequency:0";
- };
+ };
};
--- a/arch/arm/boot/dts/overlays/tc358743-overlay.dts
+++ b/arch/arm/boot/dts/overlays/tc358743-overlay.dts
@@ -21,12 +21,6 @@
clocks = <&tc358743_clk>;
clock-names = "refclk";
- tc358743_clk: bridge-clk {
- compatible = "fixed-clock";
- #clock-cells = <0>;
- clock-frequency = <27000000>;
- };
-
port {
tc358743: endpoint {
remote-endpoint = <&csi1_ep>;
@@ -81,6 +75,17 @@
};
};
+ fragment@6 {
+ target-path = "/";
+ __overlay__ {
+ tc358743_clk: bridge-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <27000000>;
+ };
+ };
+ };
+
__overrides__ {
4lane = <0>, "-2+3";
link-frequency = <&tc358743>,"link-frequencies#0";