Hi,
On 3/13/24 14:06, Krzysztof Kozlowski wrote:
On 13/03/2024 11:39, Christophe ROULLIER wrote:
On 3/8/24 09:28, Krzysztof Kozlowski wrote:
On 07/03/2024 14:59, Christophe Roullier wrote:
Add property st,ext-phyclk to manage cases when PHY have no cristal/quartz
This property can be used with RMII phy without cristal 50Mhz and when we
want to select RCC clock instead of ETH_REF_CLK
Can be used also with RGMII phy with no cristal and we select RCC clock
instead of ETH_CLK125
Nothing improved here. You say you add new property (wrote it explicitly
in the subject), but where is it? Where is the user?
I think we talked about this. Rob also asked quite clear:
That is obvious from the diff. What is not obvious is why we need a new
property and what is the problem with the existing ones.
How did you solve it?
Hi,
I do not understand your questions.
OK, I will clarify some questions, but are you sure that this question:
"How did you solve it?"
needs clarification?
If so, then let me clarify:
Rob pointed issue. How did you resolve Rob's comment? How did you
address it? What changed in your patch, that Rob's comment should be
considered as addressed/resolved/done?
This property was introduced in 2020 in order to simplify management of
all STM32 platforms without Ethernet cristal/quartz PHY.
Now about my other question:
"but where is it? Where is the user?"
Your subject and commit message claim you add new property. This means
such property was not existing so far in the Linux kernel. If you add
new property in the binding, then I expect adding the user of that
binding, thus my question: where is the user of that binding?
I'm preparing glue and DTS to upstream for STM32MP13 platform, this
platform will use with property.
Since 2020, this property is available in the driver in kernel.org, so
it is also possible that someone who has not upstreamed their
code also uses it.
That I would like to do, it is property "st,ext-phyclk" was introduced
in driver
"drivers/net/ethernet/stmicro/stmmac/dwmac-stm32.c" in 2020, and YAML
was not updated at the time.
Are you saying you document existing property or add a new one?
Yes, existing property, since 2020 in kernel.org.
Goal of this patch it is to update YAML to avoid dtbs check issue if
someone use this property :
dtbs check issue : views/kernel/upstream/net-next/arch/arm/boot/dts/st/stm32mp157c-dk2.dtb:
ethernet@5800a000: Unevaluated properties are not allowed
('st,ext-phyclk' was unexpected)
So DTS uses it?
Here it was example, if someone wants to use this property, but today
this property is not yet present in DTS in kernel.org
Are my questions now clear?
Thanks Krzysztof ;-)
BTW, I asked some of them before and you
just sent the same patch, so looks like ignored my questions.
Best regards,
Krzysztof
