brcm2708: update linux 4.4 patches to latest version

As usual these patches were extracted and rebased from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y

Also adds support for Raspberry Pi Compute Module 3 (untested).

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 155 insertions, 0 deletions

diff --git a/target/linux/brcm2708/patches-4.4/0387-Add-ads1015-overlay.patch b/target/linux/brcm2708/patches-4.4/0387-Add-ads1015-overlay.patch
new file mode 100644
index 0000000000..80c663e677
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.4/0387-Add-ads1015-overlay.patch
@@ -0,0 +1,155 @@
+From adce42f39f75ac5d479d2b4caff73723107e0539 Mon Sep 17 00:00:00 2001
+From: Erik Sejr <erik@eriks.ssimicro.com>
+Date: Tue, 7 Jun 2016 20:58:17 -0400
+Subject: [PATCH] Add ads1015 overlay
+
+See: https://github.com/raspberrypi/linux/pull/1520
+---
+ arch/arm/boot/dts/overlays/Makefile            |  1 +
+ arch/arm/boot/dts/overlays/README              | 22 ++++++
+ arch/arm/boot/dts/overlays/ads1015-overlay.dts | 98 ++++++++++++++++++++++++++
+ 3 files changed, 121 insertions(+)
+ create mode 100644 arch/arm/boot/dts/overlays/ads1015-overlay.dts
+
+--- a/arch/arm/boot/dts/overlays/Makefile
++++ b/arch/arm/boot/dts/overlays/Makefile
+@@ -13,6 +13,7 @@ ifeq ($(CONFIG_ARCH_BCM2835),y)
+ endif
+ 
+ dtbo-$(RPI_DT_OVERLAYS) += adau1977-adc.dtbo
++dtbo-$(RPI_DT_OVERLAYS) += ads1015.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += akkordion-iqdacplus.dtbo
+ dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -168,6 +168,28 @@ Load:   dtoverlay=adau1977-adc
+ Params: <None>
+ 
+ 
++Name:   ads1015
++Info:   Overlay for activation of Texas Instruments ADS1015 ADC over I2C
++Load:   dtoverlay=ads1015,<param>=<val>
++Params: addr                    I2C bus address of device. Set based on how the
++                                addr pin is wired. (default=0x48 assumes addr
++                                is pulled to GND)
++        cha_enable              Enable virtual channel a. (default=true)
++        cha_cfg                 Set the configuration for virtual channel a.
++                                (default=4 configures this channel for the
++                                voltage at A0 with respect to GND)
++        cha_datarate            Set the datarate (samples/sec) for this channel.
++                                (default=4 sets 1600 sps)
++        cha_gain                Set the gain of the Programmable Gain
++                                Amplifier for this channel. (default=2 sets the
++                                full scale of the channel to 2.048 Volts)
++
++        Channel (ch) parameters can be set for each enabled channel.
++        A maximum of 4 channels can be enabled (letters a thru d).
++        For more information refer to the device datasheet at:
++        http://www.ti.com/lit/ds/symlink/ads1015.pdf
++
++
+ Name:   ads7846
+ Info:   ADS7846 Touch controller
+ Load:   dtoverlay=ads7846,<param>=<val>
+--- /dev/null
++++ b/arch/arm/boot/dts/overlays/ads1015-overlay.dts
+@@ -0,0 +1,98 @@
++/*
++ * 2016 - Erik Sejr
++ */
++/dts-v1/;
++/plugin/;
++
++/ {
++    compatible = "brcm,bcm2708";
++    /* ----------- ADS1015 ------------ */
++    fragment@0 {
++        target = <&i2c_arm>;
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            status = "okay";
++            ads1015: ads1015 {
++                compatible = "ti,ads1015";
++                status = "okay";
++                #address-cells = <1>;
++                #size-cells = <0>;
++                reg = <0x48>;
++            };
++        };
++    };
++
++    fragment@1 {
++        target-path = "i2c_arm/ads1015";
++        __overlay__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_a: channel_a {
++                reg = <4>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@2 {
++        target-path = "i2c_arm/ads1015";
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_b: channel_b {
++                reg = <5>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@3 {
++        target-path = "i2c_arm/ads1015";
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_c: channel_c {
++                reg = <6>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    fragment@4 {
++        target-path = "i2c_arm/ads1015";
++        __dormant__ {
++            #address-cells = <1>;
++            #size-cells = <0>;
++            channel_d: channel_d {
++                reg = <7>;
++                ti,gain = <2>;
++                ti,datarate = <4>;
++            };
++        };
++    };
++
++    __overrides__ {
++        addr =            <&ads1015>,"reg:0";
++        cha_enable =      <0>,"=1";
++        cha_cfg =         <&channel_a>,"reg:0";
++        cha_gain =        <&channel_a>,"ti,gain:0";
++        cha_datarate =    <&channel_a>,"ti,datarate:0";
++        chb_enable =      <0>,"=2";
++        chb_cfg =         <&channel_b>,"reg:0";
++        chb_gain =        <&channel_b>,"ti,gain:0";
++        chb_datarate =    <&channel_b>,"ti,datarate:0";
++        chc_enable =      <0>,"=3";
++        chc_cfg =         <&channel_c>,"reg:0";
++        chc_gain =        <&channel_c>,"ti,gain:0";
++        chc_datarate =    <&channel_c>,"ti,datarate:0";
++        chd_enable =      <0>,"=4";
++        chd_cfg =         <&channel_d>,"reg:0";
++        chd_gain =        <&channel_d>,"ti,gain:0";
++        chd_datarate =    <&channel_d>,"ti,datarate:0";
++   };
++
++};