Hi Rui,
Thank you for the patch.
On Wed, Feb 06, 2019 at 03:13:23PM +0000, Rui Miguel Silva wrote:
> This patch adds the device tree nodes for csi, video multiplexer and
> mipi-csi besides the graph connecting the necessary endpoints to make
> the media capture entities to work in imx7 Warp board.
>
> Signed-off-by: Rui Miguel Silva <rui.si...@linaro.org>
> ---
> arch/arm/boot/dts/imx7s-warp.dts | 51 ++++++++++++++++++++++++++++++++
> arch/arm/boot/dts/imx7s.dtsi | 27 +++++++++++++++++
I would have split this in two patches to make backporting easier, but
it's not a big deal.
Please see below for a few additional comments.
> 2 files changed, 78 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7s-warp.dts
> b/arch/arm/boot/dts/imx7s-warp.dts
> index 23431faecaf4..358bcae7ebaf 100644
> --- a/arch/arm/boot/dts/imx7s-warp.dts
> +++ b/arch/arm/boot/dts/imx7s-warp.dts
> @@ -277,6 +277,57 @@
> status = "okay";
> };
>
> +&gpr {
> + csi_mux {
> + compatible = "video-mux";
> + mux-controls = <&mux 0>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@1 {
> + reg = <1>;
> +
> + csi_mux_from_mipi_vc0: endpoint {
> + remote-endpoint = <&mipi_vc0_to_csi_mux>;
> + };
> + };
> +
> + port@2 {
> + reg = <2>;
> +
> + csi_mux_to_csi: endpoint {
> + remote-endpoint = <&csi_from_csi_mux>;
> + };
> + };
> + };
> +};
> +
> +&csi {
> + status = "okay";
> +
> + port {
> + csi_from_csi_mux: endpoint {
> + remote-endpoint = <&csi_mux_to_csi>;
> + };
> + };
> +};
Shouldn't these two nodes, as well as port@1 of the mipi_csi node, be
moved to imx7d.dtsi ?
> +
> +&mipi_csi {
> + clock-frequency = <166000000>;
> + status = "okay";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + fsl,csis-hs-settle = <3>;
Shouldn't this be an endpoint property ? Different sensors connected
through different endpoints could have different timing requirements.
> +
> + port@1 {
> + reg = <1>;
> +
> + mipi_vc0_to_csi_mux: endpoint {
> + remote-endpoint = <&csi_mux_from_mipi_vc0>;
> + };
> + };
> +};
> +
> &wdog1 {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_wdog>;
> diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi
> index 792efcd2caa1..01962f85cab6 100644
> --- a/arch/arm/boot/dts/imx7s.dtsi
> +++ b/arch/arm/boot/dts/imx7s.dtsi
> @@ -8,6 +8,7 @@
> #include <dt-bindings/gpio/gpio.h>
> #include <dt-bindings/input/input.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/reset/imx7-reset.h>
> #include "imx7d-pinfunc.h"
>
> / {
> @@ -709,6 +710,17 @@
> status = "disabled";
> };
>
> + csi: csi@30710000 {
> + compatible = "fsl,imx7-csi";
> + reg = <0x30710000 0x10000>;
> + interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&clks IMX7D_CLK_DUMMY>,
> + <&clks IMX7D_CSI_MCLK_ROOT_CLK>,
> + <&clks IMX7D_CLK_DUMMY>;
> + clock-names = "axi", "mclk", "dcic";
> + status = "disabled";
> + };
> +
> lcdif: lcdif@30730000 {
> compatible = "fsl,imx7d-lcdif",
> "fsl,imx28-lcdif";
> reg = <0x30730000 0x10000>;
> @@ -718,6 +730,21 @@
> clock-names = "pix", "axi";
> status = "disabled";
> };
> +
> + mipi_csi: mipi-csi@30750000 {
> + compatible = "fsl,imx7-mipi-csi2";
> + reg = <0x30750000 0x10000>;
> + interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&clks IMX7D_IPG_ROOT_CLK>,
> + <&clks IMX7D_MIPI_CSI_ROOT_CLK>,
> + <&clks IMX7D_MIPI_DPHY_ROOT_CLK>;
> + clock-names = "pclk", "wrap", "phy";
> + power-domains = <&pgc_mipi_phy>;
> + phy-supply = <®_1p0d>;
> + resets = <&src IMX7_RESET_MIPI_PHY_MRST>;
> + reset-names = "mrst";
> + status = "disabled";
How about already declaring port@0 here too (but obviously without any
endoint) ?
> + };
> };
>
> aips3: aips-bus@30800000 {
--
Regards,
Laurent Pinchart
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