Hi Tony,
Thank you for the patch.
On Tuesday, 29 August 2017 00:19:10 EEST Tony Lindgren wrote:
> On omap4 we're missing the iss node with it's related "ti,hwmods"
> property that the SoC interconnect code needs.
>
> Note that this will only show up as a bug with "doesn't have
> mpu register target base" boot errors when the legacy platform
> data is removed.
>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> Cc: Sakari Ailus <sakari.ailus@xxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/media/ti-iss.txt | 32 +++++++++++++++++++
> arch/arm/boot/dts/omap4.dtsi | 7 +++++
> 2 files changed, 39 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/ti-iss.txt
>
> diff --git a/Documentation/devicetree/bindings/media/ti-iss.txt
> b/Documentation/devicetree/bindings/media/ti-iss.txt new file mode 100644
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/ti-iss.txt
> @@ -0,0 +1,32 @@
> +Texas Instruments Imaging Subsystem (ISS) binding
> +
> +ISS is used for cameras on Texas Instruments SoCs.
> +
> +
> +Required properties:
> +
> +compatible: Shall be one of the following:
> + "ti,omap4-iss"
> +
> +reg: Shall contain the device instance IO range
> +
> +interrupts: Shall contain the device instance interrupt
> +
> +
> +Optional properties:
> +
> +reg-names: Shall contain the IO range names if multiple IO
> + ranges are used by the SoC
> +
> +ti,hwmods: Shall contain the TI interconnect module name if needed
> + by the SoC
This isn't enough. The ISS isn't a stand-alone IP core, it is connected to
external devices and those connections must be modelled in DT similarly to the
OMAP3 ISP.
> +Example:
> +
> + iss: iss@52000000 {
> + compatible = "ti,omap4-iss";
> + reg = <0x52000000 0x1000000>;
> + interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
> + ti,hwmods = "iss";
> + };
> diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
> --- a/arch/arm/boot/dts/omap4.dtsi
> +++ b/arch/arm/boot/dts/omap4.dtsi
> @@ -649,6 +649,13 @@
> #iommu-cells = <0>;
> };
>
> + iss: iss@52000000 {
> + compatible = "ti,omap4-iss";
> + reg = <0x52000000 0x1000000>;
> + interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
> + ti,hwmods = "iss";
> + };
> +
> mmu_ipu: mmu@55082000 {
> compatible = "ti,omap4-iommu";
> reg = <0x55082000 0x100>;
--
Regards,
Laurent Pinchart
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