| Message ID | 20210315163028.173148-3-jacopo+renesas@jmondi.org (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | arm64: dts: renesas: Enable GMSL on R8A77970 V3M Eagle | expand |
Hi Jacopo, Thank you for the patch. On Mon, Mar 15, 2021 at 05:30:26PM +0100, Jacopo Mondi wrote: > From: Kieran Bingham <kieran.bingham@ideasonboard.com> > > Enable the MAX9286 GMSL deserializer on the Eagle-V3M board. > > Connected cameras should be defined in a device-tree overlay or included > after these definitions. > > Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> > --- > .../arm64/boot/dts/renesas/r8a77970-eagle.dts | 132 ++++++++++++++++++ > 1 file changed, 132 insertions(+) > > diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > index 874a7fc2730b..d2f63cccc238 100644 > --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts > @@ -6,6 +6,8 @@ > * Copyright (C) 2017 Cogent Embedded, Inc. > */ > > +#include <dt-bindings/gpio/gpio.h> > + > /dts-v1/; > #include "r8a77970.dtsi" > > @@ -188,6 +190,11 @@ i2c0_pins: i2c0 { > function = "i2c0"; > }; > > + i2c3_pins: i2c3 { > + groups = "i2c3_a"; > + function = "i2c3"; > + }; > + > qspi0_pins: qspi0 { > groups = "qspi0_ctrl", "qspi0_data4"; > function = "qspi0"; > @@ -266,6 +273,131 @@ &rwdt { > status = "okay"; > }; Could we keep the nodes alphabetically sorted ? > +&csi40 { > + status = "okay"; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; This is already present in r8a77970.dtsi, you can drop it. > + > + port@0 { > + reg = <0>; Similarly, should we add port@0 in r8a77970.dtsi, with its reg property ? > + > + csi40_in: endpoint { > + clock-lanes = <0>; > + data-lanes = <1 2 3 4>; > + remote-endpoint = <&max9286_out0>; > + }; > + }; > + }; > +}; > + > +&i2c3 { > + pinctrl-0 = <&i2c3_pins>; > + pinctrl-names = "default"; > + > + status = "okay"; > + clock-frequency = <400000>; > + > + gmsl: gmsl-deserializer@48 { > + gpio-controller; > + #gpio-cells = <2>; > + > + compatible = "maxim,max9286"; > + reg = <0x48>; > + > + /* eagle-pca9654-max9286-pwdn */ > + enable-gpios = <&io_expander 0 GPIO_ACTIVE_HIGH>; > + > + /* > + * Workaround: Hog the CAMVDD line high as we can't establish a > + * regulator-fixed on the gpio_chip exposed by &gmsl due to > + * circular-dependency issues. > + */ > + camvdd-en-hog { > + gpio-hog; > + gpios = <0 0>; > + output-low; > + line-name = "CAMVDD_EN"; > + }; > + > + ports { > + #address-cells = <1>; > + #size-cells = <0>; > + > + port@0 { > + reg = <0>; > + max9286_in0: endpoint { > + }; Shouldn't we leave out empty endpoints, and add them to the overlays instead ? Endpoints describe links, so they shouldn't exist on their own. With these minor issues addressed, Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > + }; > + > + port@1 { > + reg = <1>; > + max9286_in1: endpoint { > + }; > + }; > + > + port@2 { > + reg = <2>; > + max9286_in2: endpoint { > + }; > + }; > + > + port@3 { > + reg = <3>; > + max9286_in3: endpoint { > + }; > + }; > + > + port@4 { > + reg = <4>; > + max9286_out0: endpoint { > + clock-lanes = <0>; > + data-lanes = <1 2 3 4>; > + remote-endpoint = <&csi40_in>; > + }; > + }; > + }; > + > + i2c-mux { > + #address-cells = <1>; > + #size-cells = <0>; > + > + i2c@0 { > + #address-cells = <1>; > + #size-cells = <0>; > + reg = <0>; > + > + status = "disabled"; > + }; > + > + i2c@1 { > + #address-cells = <1>; > + #size-cells = <0>; > + reg = <1>; > + > + status = "disabled"; > + }; > + > + i2c@2 { > + #address-cells = <1>; > + #size-cells = <0>; > + reg = <2>; > + > + status = "disabled"; > + }; > + > + i2c@3 { > + #address-cells = <1>; > + #size-cells = <0>; > + reg = <3>; > + > + status = "disabled"; > + }; > + }; > + }; > +}; > + > &scif0 { > pinctrl-0 = <&scif0_pins>; > pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 874a7fc2730b..d2f63cccc238 100644 --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts @@ -6,6 +6,8 @@ * Copyright (C) 2017 Cogent Embedded, Inc. */ +#include <dt-bindings/gpio/gpio.h> + /dts-v1/; #include "r8a77970.dtsi" @@ -188,6 +190,11 @@ i2c0_pins: i2c0 { function = "i2c0"; }; + i2c3_pins: i2c3 { + groups = "i2c3_a"; + function = "i2c3"; + }; + qspi0_pins: qspi0 { groups = "qspi0_ctrl", "qspi0_data4"; function = "qspi0"; @@ -266,6 +273,131 @@ &rwdt { status = "okay"; }; +&csi40 { + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + csi40_in: endpoint { + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + remote-endpoint = <&max9286_out0>; + }; + }; + }; +}; + +&i2c3 { + pinctrl-0 = <&i2c3_pins>; + pinctrl-names = "default"; + + status = "okay"; + clock-frequency = <400000>; + + gmsl: gmsl-deserializer@48 { + gpio-controller; + #gpio-cells = <2>; + + compatible = "maxim,max9286"; + reg = <0x48>; + + /* eagle-pca9654-max9286-pwdn */ + enable-gpios = <&io_expander 0 GPIO_ACTIVE_HIGH>; + + /* + * Workaround: Hog the CAMVDD line high as we can't establish a + * regulator-fixed on the gpio_chip exposed by &gmsl due to + * circular-dependency issues. + */ + camvdd-en-hog { + gpio-hog; + gpios = <0 0>; + output-low; + line-name = "CAMVDD_EN"; + }; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + max9286_in0: endpoint { + }; + }; + + port@1 { + reg = <1>; + max9286_in1: endpoint { + }; + }; + + port@2 { + reg = <2>; + max9286_in2: endpoint { + }; + }; + + port@3 { + reg = <3>; + max9286_in3: endpoint { + }; + }; + + port@4 { + reg = <4>; + max9286_out0: endpoint { + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + remote-endpoint = <&csi40_in>; + }; + }; + }; + + i2c-mux { + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + status = "disabled"; + }; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + status = "disabled"; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + status = "disabled"; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + status = "disabled"; + }; + }; + }; +}; + &scif0 { pinctrl-0 = <&scif0_pins>; pinctrl-names = "default";