git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From 8ea13a43a77dfb45c836de2d6c747f630dd75275 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Wed, 31 Oct 2018 15:02:18 +0000
   4 Subject: [PATCH] dtoverlays: Add support for ADV7280-M, ADV7281-M and
   5  ADV7281-MA chips.
   6
   7 The driver that supports the ADV7282-M also supports the ADV7280-M,
   8 ADV7281-M, and ADV7281-MA.
   9 The 7280-M exposes 8 analogue inputs. The 7281-M doesn't have the
  10 I2P deinterlacing block. The 7281-MA has 8 inputs but no I2P.
  11 Otherwise they are the same as ADV7282-M.
  12
  13 Adds a new overlay "adv728x" that includes the existing adv7282
  14 overlay but adds several parameters to modify the behaviour.
  15
  16 Adds a new addr parameter to allow the I2C address to be changed.
  17 (the chip has an address select pin to change between 0x20 and 0x21).
  18
  19 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  20 ---
  21  arch/arm/boot/dts/overlays/Makefile           |  1 +
  22  arch/arm/boot/dts/overlays/README             | 13 +++++++
  23  .../boot/dts/overlays/adv7282m-overlay.dts    |  9 +++--
  24  .../boot/dts/overlays/adv728x-m-overlay.dts   | 37 +++++++++++++++++++
  25  4 files changed, 56 insertions(+), 4 deletions(-)
  26  create mode 100644 arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
  27
  28 --- a/arch/arm/boot/dts/overlays/Makefile
  29 +++ b/arch/arm/boot/dts/overlays/Makefile
  30 @@ -7,6 +7,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  31         ads1115.dtbo \
  32         ads7846.dtbo \
  33         adv7282m.dtbo \
  34 +       adv728x-m.dtbo \
  35         akkordion-iqdacplus.dtbo \
  36         allo-boss-dac-pcm512x-audio.dtbo \
  37         allo-digione.dtbo \
  38 --- a/arch/arm/boot/dts/overlays/README
  39 +++ b/arch/arm/boot/dts/overlays/README
  40 @@ -274,6 +274,19 @@ Info:   Analog Devices ADV7282M analogue
  41  Load:   dtoverlay=adv7282m,<param>=<val>
  42  Params: i2c_pins_28_29          Use pins 28&29 for the I2C instead of 44&45.
  43                                  This is required for Pi B+, 2, 0, and 0W.
  44 +        addr                    Overrides the I2C address (default 0x21)
  45 +
  46 +
  47 +Name:   adv728x-m
  48 +Info:   Analog Devices ADV728[0|1|2]-M analogue video to CSI2 bridges.
  49 +        This is a wrapper for adv7282m, and defaults to ADV7282M.
  50 +Load:   dtoverlay=adv728x-m,<param>=<val>
  51 +Params: i2c_pins_28_29          Use pins 28&29 for the I2C instead of 44&45.
  52 +                                This is required for Pi B+, 2, 0, and 0W.
  53 +        addr                    Overrides the I2C address (default 0x21)
  54 +        adv7280m                Select ADV7280-M.
  55 +        adv7281m                Select ADV7281-M.
  56 +        adv7281ma               Select ADV7281-MA.
  57
  58
  59  Name:   akkordion-iqdacplus
  60 --- a/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
  61 +++ b/arch/arm/boot/dts/overlays/adv7282m-overlay.dts
  62 @@ -13,13 +13,13 @@
  63                         #size-cells = <0>;
  64                         status = "okay";
  65
  66 -                       adv7282: adv7282@21 {
  67 +                       adv728x: adv728x@21 {
  68                                 compatible = "adi,adv7282-m";
  69                                 reg = <0x21>;
  70                                 status = "okay";
  71                                 clock-frequency = <24000000>;
  72                                 port {
  73 -                                       adv7282_0: endpoint {
  74 +                                       adv728x_0: endpoint {
  75                                                 remote-endpoint = <&csi1_ep>;
  76                                                 clock-lanes = <0>;
  77                                                 data-lanes = <1>;
  78 @@ -43,7 +43,7 @@
  79                                 #address-cells = <1>;
  80                                 #size-cells = <0>;
  81                                 csi1_ep: endpoint {
  82 -                                       remote-endpoint = <&adv7282_0>;
  83 +                                       remote-endpoint = <&adv728x_0>;
  84                                 };
  85                         };
  86                 };
  87 @@ -71,6 +71,7 @@
  88         };
  89
  90         __overrides__ {
  91 -               i2c_pins_28_29 = <0>,"+2-3";
  92 +               i2c_pins_28_29 =        <0>,"+2-3";
  93 +               addr =                  <&adv728x>,"reg:0";
  94         };
  95  };
  96 --- /dev/null
  97 +++ b/arch/arm/boot/dts/overlays/adv728x-m-overlay.dts
  98 @@ -0,0 +1,37 @@
  99 +// SPDX-License-Identifier: GPL-2.0-only
 100 +// Definitions for Analog Devices ADV728[0|1|2]-M video to CSI2 bridges on VC
 101 +// I2C bus
 102 +
 103 +#include "adv7282m-overlay.dts"
 104 +
 105 +/{
 106 +       compatible = "brcm,bcm2708";
 107 +
 108 +       // Fragment numbers deliberately high to avoid conflicts with the
 109 +       // included adv7282m overlay file.
 110 +
 111 +       fragment@101 {
 112 +               target = <&adv728x>;
 113 +               __dormant__ {
 114 +                       compatible = "adi,adv7280-m";
 115 +               };
 116 +       };
 117 +       fragment@102 {
 118 +               target = <&adv728x>;
 119 +               __dormant__ {
 120 +                       compatible = "adi,adv7281-m";
 121 +               };
 122 +       };
 123 +       fragment@103 {
 124 +               target = <&adv728x>;
 125 +               __dormant__ {
 126 +                       compatible = "adi,adv7281-ma";
 127 +               };
 128 +       };
 129 +
 130 +       __overrides__ {
 131 +               adv7280m = <0>, "+101";
 132 +               adv7281m = <0>, "+102";
 133 +               adv7281ma = <0>, "+103";
 134 +       };
 135 +};