From: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Date: Thu, 22 Dec 2016 06:34:12 +0000 (+0900)
Subject: BCM2708: Add Raspberry Pi TV HAT Device Tree Support
X-Git-Tag: archive/raspbian/4.9.51-1+rpi1~5^2~308
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=73b20d636373729a9cb4b3bdee5ce51204d57637;p=linux-4.9.git

BCM2708: Add Raspberry Pi TV HAT Device Tree Support

This is an EXAMPLE CODE of Raspberry Pi TV HAT device tree overlay.
Although this is not a part of our release code, it has been used to verify
CXD2880 device driver with TV HAT.

Add the following line to /boot/config.txt to enable TV HAT:

dtoverlay=rpi-tv

Reboot Raspberry Pi and check the existance of /proc/device-tree/soc/spi@7e204000/cxd2880@0.
If exists, the installation is successful.  you should be able to find the following three files.
/dev/dvb/adapter0/frontend0
/dev/dvb/adapter0/demux0
/dev/dvb/adapter0/dvr0

Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>
Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com>
Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com>
Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com>
Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com>
Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com>
---

diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
index b64dd7ac0630..e2f66a55dc5a 100644
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -81,6 +81,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	rpi-ft5406.dtbo \
 	rpi-proto.dtbo \
 	rpi-sense.dtbo \
+	rpi-tv.dtbo \
 	rra-digidac1-wm8741-audio.dtbo \
 	sc16is750-i2c.dtbo \
 	sc16is752-spi1.dtbo \
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 1377e5b8e836..e2a803e5180c 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1142,6 +1142,12 @@ Load:   dtoverlay=rpi-sense
 Params: <None>
 
 
+Name:   rpi-tv
+Info:   Raspberry Pi TV HAT
+Load:   dtoverlay=rpi-tv
+Params: <None>
+
+
 Name:   rra-digidac1-wm8741-audio
 Info:   Configures the Red Rocks Audio DigiDAC1 soundcard
 Load:   dtoverlay=rra-digidac1-wm8741-audio
diff --git a/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts
new file mode 100644
index 000000000000..a68f6f793d8e
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/rpi-tv-overlay.dts
@@ -0,0 +1,31 @@
+// rpi-tv HAT
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "brcm,bcm2708", "brcm,bcm2709";
+
+	fragment@0 {
+		target = <&spi0>;
+		__overlay__ {
+			/* needed to avoid dtc warning */
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			status = "okay";
+
+			spidev@0 {
+				status = "disabled";
+			};
+
+			cxd2880@0 {
+				compatible = "sony,cxd2880";
+				reg = <0>; /* CE0 */
+				spi-max-frequency = <50000000>;
+				status = "okay";
+			};
+		};
+	};
+
+};