[PATCH 06/15] ARM: dts: r8a779x: fix PCI bus dtc warnings

[Rob Herring]

On Wed, Mar 22, 2017 at 3:58 AM, Geert Uytterhoeven
<geert at linux-m68k.org> wrote:
> Hi Rob,
>
> On Wed, Mar 22, 2017 at 3:03 AM, Rob Herring <robh at kernel.org> wrote:
>> dtc recently added PCI bus checks. Fix these warnings.
>
> It's always a good idea to put the warnings in the commit message:

Well, the warnings are a bit noisy in that they get repeated, can be
misleading, change as I fix problems (device nodes are not checked if
the bridge node fails), and most importantly I'm lazy having fixed
these treewide. Sub-arch maintainers are welcome to make better
patches. :)

> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,1 node name is not "pci" or "pcie"
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,1 missing ranges for PCI bridge (or not a bridge)
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,1 incorrect #address-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,1 incorrect #size-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,1 missing bus-range for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,2 node name is not "pci" or "pcie"
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,2 missing ranges for PCI bridge (or not a bridge)
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,2 incorrect #address-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,2 incorrect #size-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee090000/usb at 0,2 missing bus-range for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,1 node name is not "pci" or "pcie"
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,1 missing ranges for PCI bridge (or not a bridge)
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,1 incorrect #address-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,1 incorrect #size-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,1 missing bus-range for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,2 node name is not "pci" or "pcie"
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,2 missing ranges for PCI bridge (or not a bridge)
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,2 incorrect #address-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,2 incorrect #size-cells for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_bridge): Node
> /pci at ee0d0000/usb at 0,2 missing bus-range for PCI bridge
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (unit_address_format):
> Failed prerequisite 'pci_bridge'
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_device_reg): Failed
> prerequisite 'pci_bridge'
> arch/arm/boot/dts/r8a7790-lager.dtb: Warning (pci_device_bus_num):
> Failed prerequisite 'pci_bridge'
>
> The above indeed go away with your patch, but I don't know why ;-)

Most of these are because 'device_type = "pci";' should only be on PCI
bridges, not PCI devices.

>
>> Signed-off-by: Rob Herring <robh at kernel.org>
>> Cc: Simon Horman <horms at verge.net.au>
>> Cc: Magnus Damm <magnus.damm at gmail.com>
>> Cc: linux-renesas-soc at vger.kernel.org
>> ---
>> Sub-arch maintainers, please apply to your trees unless arm-soc wants
>> to take the whole lot.
>>
>>  arch/arm/boot/dts/r8a7790.dtsi | 16 ++++++----------
>>  arch/arm/boot/dts/r8a7791.dtsi | 16 ++++++----------
>>  arch/arm/boot/dts/r8a7794.dtsi | 16 ++++++----------
>>  3 files changed, 18 insertions(+), 30 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
>> index 6d10450de6d7..c16a37e9fb5d 100644
>> --- a/arch/arm/boot/dts/r8a7790.dtsi
>> +++ b/arch/arm/boot/dts/r8a7790.dtsi
>> @@ -1598,16 +1598,14 @@
>>                                  0x0800 0 0 1 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH
>>                                  0x1000 0 0 2 &gic GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
>>
>> -               usb at 0,1 {
>> +               usb at 1,0 {
>>                         reg = <0x800 0 0 0 0>;
>> -                       device_type = "pci";
>>                         phys = <&usb0 0>;
>>                         phy-names = "usb";
>>                 };
>
> Both Documentation/devicetree/bindings/pci/pci.txt and ePAPR refer to
> http://www.firmware.org/1275/bindings/pci/pci2_1.pdf
> http://www.firmware.org/1275/practice/imap/imap0_9d.pdf
> which no longer exist.

Yeah, they are still out there. Just need to google "PCI supplement 1275". :)

I have the full archive saved off. I need to get them added to devicetree.org.

Rob