ARM: dts: imx6qdl-wandboard: Add OV5645 camera support

imx6qdl-wandboard can be connected to a OV5645 camera via
MIPI CSI port. Add support for it.

PAD_GPIO_6 has been originally used for the Ethernet FEC
ERR006687 workaround, but it needs to be used to provide the
camera sensor clock, so adjust it accordingly.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index 50d9a989e06a9072595f2e64d19c6e19171b9862..2cfb4112a4678c5d9123d3a8d8a1e515e8ae2cfb 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -33,6 +33,30 @@
                spdif-out;
        };
 
+       reg_1p5v: regulator-1p5v {
+               compatible = "regulator-fixed";
+               regulator-name = "1P5V";
+               regulator-min-microvolt = <1500000>;
+               regulator-max-microvolt = <1500000>;
+               regulator-always-on;
+       };
+
+       reg_1p8v: regulator-1p8v {
+               compatible = "regulator-fixed";
+               regulator-name = "1P8V";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               regulator-always-on;
+       };
+
+       reg_2p8v: regulator-2p8v {
+               compatible = "regulator-fixed";
+               regulator-name = "2P8V";
+               regulator-min-microvolt = <2800000>;
+               regulator-max-microvolt = <2800000>;
+               regulator-always-on;
+       };
+
        reg_2p5v: regulator-2p5v {
                compatible = "regulator-fixed";
                regulator-name = "2P5V";
@@ -94,6 +118,29 @@
                VDDIO-supply = <&reg_3p3v>;
                lrclk-strength = <3>;
        };
+
+       camera@3c {
+               compatible = "ovti,ov5645";
+               pinctrl-names = "default";
+               pinctrl-0 = <&pinctrl_ov5645>;
+               reg = <0x3c>;
+               clocks = <&clks IMX6QDL_CLK_CKO2>;
+               clock-names = "xclk";
+               clock-frequency = <24000000>;
+               vdddo-supply = <&reg_1p8v>;
+               vdda-supply = <&reg_2p8v>;
+               vddd-supply = <&reg_1p5v>;
+               enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+               reset-gpios = <&gpio4 14 GPIO_ACTIVE_LOW>;
+
+               port {
+                       ov5645_to_mipi_csi2: endpoint {
+                               remote-endpoint = <&mipi_csi2_in>;
+                               clock-lanes = <0>;
+                               data-lanes = <1 2>;
+                       };
+               };
+       };
 };
 
 &iomuxc {
@@ -128,7 +175,6 @@
                                MX6QDL_PAD_RGMII_RD3__RGMII_RD3         0x1b030
                                MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL   0x1b030
                                MX6QDL_PAD_GPIO_16__ENET_REF_CLK        0x4001b0a8
-                               MX6QDL_PAD_GPIO_6__ENET_IRQ             0x000b1
                        >;
                };
 
@@ -152,6 +198,14 @@
                        >;
                };
 
+               pinctrl_ov5645: ov5645grp {
+                       fsl,pins = <
+                               MX6QDL_PAD_GPIO_3__CCM_CLKO2            0x000b0
+                               MX6QDL_PAD_GPIO_6__GPIO1_IO06           0x1b0b0
+                               MX6QDL_PAD_KEY_COL4__GPIO4_IO14         0x1b0b0
+                       >;
+               };
+
                pinctrl_spdif: spdifgrp {
                        fsl,pins = <
                                MX6QDL_PAD_ENET_RXD0__SPDIF_OUT         0x1b0b0
@@ -226,12 +280,23 @@
        pinctrl-0 = <&pinctrl_enet>;
        phy-mode = "rgmii-id";
        phy-reset-gpios = <&gpio3 29 GPIO_ACTIVE_LOW>;
-       interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
-                             <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
-       fsl,err006687-workaround-present;
        status = "okay";
 };
 
+&mipi_csi {
+       status = "okay";
+
+       port@0 {
+               reg = <0>;
+
+               mipi_csi2_in: endpoint {
+                       remote-endpoint = <&ov5645_to_mipi_csi2>;
+                       clock-lanes = <0>;
+                       data-lanes = <1 2>;
+               };
+       };
+};
+
 &spdif {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_spdif>;