Re: [PATCHv2] ARM: dts: am5748: keep usb4_tm disabled

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On 23/08/2022 10:27, Romain Naour wrote:
> From: Romain Naour <romain.naour@xxxxxxx>
> 
> Commit bcbb63b80284 ("ARM: dts: dra7: Separate AM57 dtsi files")
> disabled usb4_tm for am5748 devices since USB4 IP is not present
> in this SoC.
> 
> The commit log explained the difference between AM5 and DRA7 families:
> 
> AM5 and DRA7 SoC families have different set of modules in them so the
> SoC sepecific dtsi files need to be separated.
> 
> e.g. Some of the major differences between AM576 and DRA76
> 
> 		DRA76x	AM576x
> 
> USB3		x
> USB4		x
> ATL		x
> VCP		x
> MLB		x
> ISS		x
> PRU-ICSS1		x
> PRU-ICSS2		x
> 
> Then commit 176f26bcd41a ("ARM: dts: Add support for dra762 abz
> package") removed usb4_tm part from am5748.dtsi and introcuded new
> ti-sysc errors in dmesg:
> 
> ti-sysc 48940000.target-module: clock get error for fck: -2
> ti-sysc: probe of 48940000.target-module failed with error -2
> 
> Fixes: 176f26bcd41a ("ARM: dts: Add support for dra762 abz package")
> 
> Signed-off-by: Romain Naour <romain.naour@xxxxxxx>
> Signed-off-by: Romain Naour <romain.naour@xxxxxxxx>
> Cc: Roger Quadros <rogerq@xxxxxxxxxx>
> ---
> Issue reproduced on a AM5749 CPU using a 5.10 kernel from ti-linux-kernel:
> https://git.ti.com/cgit/ti-linux-kernel/ti-linux-kernel/commit/?h=linux-5.10.y
> 
> v2: improved commit log to ease patch backport
> ---
>  arch/arm/boot/dts/am5748.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)

Reviewed-by: Roger Quadros <rogerq@xxxxxxxxxx>

cheers,
-roger



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