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136 lines
4.1 KiB
Diff
136 lines
4.1 KiB
Diff
From 9ab30d7658ba3c6ddf77661b6ca4440ef2d6e38d Mon Sep 17 00:00:00 2001
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From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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Date: Wed, 31 Oct 2018 15:02:18 +0000
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Subject: [PATCH 205/725] dtoverlays: Add support for ADV7280-M, ADV7281-M and
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ADV7281-MA chips.
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The driver that supports the ADV7282-M also supports the ADV7280-M,
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ADV7281-M, and ADV7281-MA.
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The 7280-M exposes 8 analogue inputs. The 7281-M doesn't have the
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I2P deinterlacing block. The 7281-MA has 8 inputs but no I2P.
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Otherwise they are the same as ADV7282-M.
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Adds a new overlay "adv728x" that includes the existing adv7282
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overlay but adds several parameters to modify the behaviour.
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Adds a new addr parameter to allow the I2C address to be changed.
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(the chip has an address select pin to change between 0x20 and 0x21).
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Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
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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 | 13 +++++++
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.../boot/dts/overlays/adv7282m-overlay.dts | 9 +++--
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.../boot/dts/overlays/adv728x-m-overlay.dts | 37 +++++++++++++++++++
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4 files changed, 56 insertions(+), 4 deletions(-)
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create mode 100644 arch/arm/boot/dts/overlays/adv728x-m-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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@@ -7,6 +7,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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ads1115.dtbo \
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ads7846.dtbo \
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adv7282m.dtbo \
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+ adv728x-m.dtbo \
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akkordion-iqdacplus.dtbo \
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allo-boss-dac-pcm512x-audio.dtbo \
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allo-digione.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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@@ -274,6 +274,19 @@ Info: Analog Devices ADV7282M analogue
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Load: dtoverlay=adv7282m,<param>=<val>
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Params: i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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This is required for Pi B+, 2, 0, and 0W.
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+ addr Overrides the I2C address (default 0x21)
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+
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+
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+Name: adv728x-m
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+Info: Analog Devices ADV728[0|1|2]-M analogue video to CSI2 bridges.
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+ This is a wrapper for adv7282m, and defaults to ADV7282M.
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+Load: dtoverlay=adv728x-m,<param>=<val>
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+Params: i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45.
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+ This is required for Pi B+, 2, 0, and 0W.
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+ addr Overrides the I2C address (default 0x21)
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+ adv7280m Select ADV7280-M.
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+ adv7281m Select ADV7281-M.
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+ adv7281ma Select ADV7281-MA.
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Name: akkordion-iqdacplus
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--- a/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
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@@ -13,13 +13,13 @@
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#size-cells = <0>;
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status = "okay";
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- adv7282: adv7282@21 {
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+ adv728x: adv728x@21 {
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compatible = "adi,adv7282-m";
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reg = <0x21>;
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status = "okay";
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clock-frequency = <24000000>;
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port {
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- adv7282_0: endpoint {
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+ adv728x_0: endpoint {
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remote-endpoint = <&csi1_ep>;
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clock-lanes = <0>;
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data-lanes = <1>;
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@@ -43,7 +43,7 @@
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#address-cells = <1>;
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#size-cells = <0>;
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csi1_ep: endpoint {
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- remote-endpoint = <&adv7282_0>;
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+ remote-endpoint = <&adv728x_0>;
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};
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};
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};
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@@ -71,6 +71,7 @@
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};
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__overrides__ {
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- i2c_pins_28_29 = <0>,"+2-3";
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+ i2c_pins_28_29 = <0>,"+2-3";
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+ addr = <&adv728x>,"reg:0";
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};
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};
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
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@@ -0,0 +1,37 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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+// Definitions for Analog Devices ADV728[0|1|2]-M video to CSI2 bridges on VC
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+// I2C bus
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+
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+#include "adv7282m-overlay.dts"
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+
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+/{
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+ compatible = "brcm,bcm2708";
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+
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+ // Fragment numbers deliberately high to avoid conflicts with the
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+ // included adv7282m overlay file.
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+
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+ fragment@101 {
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+ target = <&adv728x>;
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+ __dormant__ {
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+ compatible = "adi,adv7280-m";
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+ };
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+ };
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+ fragment@102 {
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+ target = <&adv728x>;
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+ __dormant__ {
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+ compatible = "adi,adv7281-m";
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+ };
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+ };
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+ fragment@103 {
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+ target = <&adv728x>;
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+ __dormant__ {
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+ compatible = "adi,adv7281-ma";
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+ };
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+ };
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+
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+ __overrides__ {
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+ adv7280m = <0>, "+101";
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+ adv7281m = <0>, "+102";
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+ adv7281ma = <0>, "+103";
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+ };
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+};
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