ARM: at91/dt: sama5d4ek: add DT for ISI + ov2640

This patch adds the at91-sama5d4ek_isi.dtb device tree to use a sama5d4ek
board with a ov2640 sensor contected to the ISI.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
(cherry picked from commit 25e5dc5)
Signed-off-by: Razvan Stefanescu <razvan.stefanescu@microchip.com>
[codrin.ciubotariu@microchip.com: moved to 5.4, changed clk phandle,
fixed i2c slave address format]
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>

Author: Cyrille Pitchen

arch/arm/boot/dts/Makefile

@@ -71,6 +71,7 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
 	at91-sama5d4_ma5d4evk.dtb \
 	at91-sama5d4_xplained.dtb \
 	at91-sama5d4ek.dtb \
+	at91-sama5d4ek_isi.dtb \
 	at91-vinco.dtb
 dtb-$(CONFIG_ARCH_ATLAS6) += \
 	atlas6-evb.dtb

arch/arm/boot/dts/at91-sama5d4ek_isi.dts

@@ -0,0 +1,115 @@
+/*
+ * at91-sama5d4ek_isi.dts - Device Tree file for SAMA5D4 Evaluation Kit
+ *                          with ov264x sensor
+ *
+ *  Copyright (C) 2016 Atmel,
+ *                2016 Cyrille Pitchen <cyrille.pitchen@atmel.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "at91-sama5d4ek.dts"
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fc06a000 {
+				board {
+					pinctrl_pck1_as_isi_mck: pck1_as_isi_mck-0 {
+						atmel,pins =
+							<AT91_PIOC  4 AT91_PERIPH_C AT91_PINCTRL_NONE>; /* PC4 periph C ISI_MCK */
+					};
+
+					pinctrl_sensor_power: sensor_power {
+						atmel,pins =
+							<AT91_PIOB  5 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; /* PB5 gpio */
+					};
+
+					pinctrl_sensor_reset: sensor_reset {
+						atmel,pins =
+							<AT91_PIOB 11 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; /* PB11 gpio */
+					};
+				};
+			};
+		};
+	};
+};
+
+&usart2 {
+	status = "disabled";
+};
+
+&spi0 {
+	status = "disabled";
+};
+
+&isi {
+	status = "okay";
+
+	port {
+		isi_0: endpoint@0 {
+			remote-endpoint = <&ov2640_0>;
+			bus-width = <8>;
+			vsync-active = <1>;
+			hsync-active = <1>;
+		};
+	};
+};
+
+&i2c0 {
+	ov2640: camera@30 {
+		compatible = "ovti,ov2640";
+		reg = <0x30>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pck1_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;
+		resetb-gpios = <&pioB 11 GPIO_ACTIVE_LOW>;
+		pwdn-gpios = <&pioB 5 GPIO_ACTIVE_HIGH>;
+		/* use pck1 for the master clock of ov2640 */
+		clocks = <&pmc PMC_TYPE_SYSTEM 9>;
+		clock-names = "xvclk";
+		assigned-clocks = <&pmc PMC_TYPE_SYSTEM 9>;
+		assigned-clock-rates = <25000000>;
+
+		port {
+			ov2640_0: endpoint {
+				remote-endpoint = <&isi_0>;
+				bus-width = <8>;
+			};
+		};
+	};
+};