Hi, On Wed, Aug 30, 2017 at 01:25:20PM -0700, Tony Lindgren wrote: > Thanks, updated patch below. Thanks, I applied the DT binding part to the HSI subsystem: https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi.git/commit/?h=for-next&id=8635d6b3afe68cdde2f646c2a3bbd8149c031e8c -- Sebastian > 8< -------------------- > From tony Mon Sep 17 00:00:00 2001 > From: Tony Lindgren <tony@xxxxxxxxxxx> > Date: Wed, 30 Aug 2017 08:07:51 -0700 > Subject: [PATCH] ARM: dts: Add missing hsi node for omap4 > > On omap4 we're missing the hsi 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. > > Let's also update the binding accrodingly while at it. > > Cc: Mark Rutland <mark.rutland@xxxxxxx> > Cc: Rob Herring <robh+dt@xxxxxxxxxx> > Reviewed-by: Sebastian Reichel <sre@xxxxxxxxxx> > Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx> > --- > Documentation/devicetree/bindings/hsi/omap-ssi.txt | 13 +++++++-- > arch/arm/boot/dts/omap4.dtsi | 34 ++++++++++++++++++++++ > 2 files changed, 44 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/hsi/omap-ssi.txt b/Documentation/devicetree/bindings/hsi/omap-ssi.txt > --- a/Documentation/devicetree/bindings/hsi/omap-ssi.txt > +++ b/Documentation/devicetree/bindings/hsi/omap-ssi.txt > @@ -1,10 +1,12 @@ > OMAP SSI controller bindings > > -OMAP Synchronous Serial Interface (SSI) controller implements a legacy > -variant of MIPI's High Speed Synchronous Serial Interface (HSI). > +OMAP3's Synchronous Serial Interface (SSI) controller implements a > +legacy variant of MIPI's High Speed Synchronous Serial Interface (HSI), > +while the controller found inside OMAP4 is supposed to be fully compliant > +with the HSI standard. > > Required properties: > -- compatible: Should include "ti,omap3-ssi". > +- compatible: Should include "ti,omap3-ssi" or "ti,omap4-hsi" > - reg-names: Contains the values "sys" and "gdd" (in this order). > - reg: Contains a matching register specifier for each entry > in reg-names. > @@ -27,6 +29,7 @@ Each port is represented as a sub-node of the ti,omap3-ssi device. > Required Port sub-node properties: > - compatible: Should be set to the following value > ti,omap3-ssi-port (applicable to OMAP34xx devices) > + ti,omap4-hsi-port (applicable to OMAP44xx devices) > - reg-names: Contains the values "tx" and "rx" (in this order). > - reg: Contains a matching register specifier for each entry > in reg-names. > @@ -38,6 +41,10 @@ Required Port sub-node properties: > property. If it's missing the port will not be > enabled. > > +Optional properties: > +- ti,hwmods: Shall contain TI interconnect module name if needed > + by the SoC > + > Example for Nokia N900: > > ssi-controller@48058000 { > 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 > @@ -632,6 +632,40 @@ > dma-names = "tx", "rx"; > }; > > + hsi: hsi@4a058000 { > + compatible = "ti,omap4-hsi"; > + reg = <0x4a058000 0x4000>, > + <0x4a05c000 0x1000>; > + reg-names = "sys", "gdd"; > + ti,hwmods = "hsi"; > + > + clocks = <&hsi_fck>; > + clock-names = "hsi_fck"; > + > + interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-names = "gdd_mpu"; > + > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0 0x4a058000 0x4000>; > + > + hsi_port1: hsi-port@2000 { > + compatible = "ti,omap4-hsi-port"; > + reg = <0x2000 0x800>, > + <0x2800 0x800>; > + reg-names = "tx", "rx"; > + interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>; > + }; > + > + hsi_port2: hsi-port@3000 { > + compatible = "ti,omap4-hsi-port"; > + reg = <0x3000 0x800>, > + <0x3800 0x800>; > + reg-names = "tx", "rx"; > + interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>; > + }; > + }; > + > mmu_dsp: mmu@4a066000 { > compatible = "ti,omap4-iommu"; > reg = <0x4a066000 0x100>; > -- > 2.14.1
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