Re: [PATCH v5 0/9] PCI: Enable Power and configure the TC9563 PCIe switch

[Dmitry Baryshkov]

On Sat, Apr 12, 2025 at 07:19:49AM +0530, Krishna Chaitanya Chundru wrote:
> TC9563 is the PCIe switch which has one upstream and three downstream
> ports. To one of the downstream ports ethernet MAC is connected as endpoint
> device. Other two downstream ports are supposed to connect to external
> device. One Host can connect to TC956x by upstream port.
> 
> TC9563 switch power is controlled by the GPIO's. After powering on
> the switch will immediately participate in the link training. if the
> host is also ready by that time PCIe link will established. 
> 
> The TC9563 needs to configured certain parameters like de-emphasis,
> disable unused port etc before link is established.
> 
> As the controller starts link training before the probe of pwrctl driver,
> the PCIe link may come up as soon as we power on the switch. Due to this
> configuring the switch itself through i2c will not have any effect as
> this configuration needs to done before link training. To avoid this
> introduce two functions in pci_ops to start_link() & stop_link() which
> will disable the link training if the PCIe link is not up yet.
> 
> This series depends on the https://lore.kernel.org/all/20250124101038.3871768-3-krishna.chundru@xxxxxxxxxxxxxxxx/
> 
> Note: The QPS615 PCIe switch is rebranded version of Toshiba switch TC9563 series.
> There is no difference between both the switches, both has two open downstream ports
> and one embedded downstream port to which Ethernet MAC is connected. As QPS615 is the
> rebranded version of Toshiba switch rename qps615 with tc956x so that this driver
> can be leveraged by all who are using Toshiba switch.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@xxxxxxxxxxxxxxxx>

Krishna, the series no longer applies to linux-next. There were comments
which required another respin. When can we expect a next revision?

-- 
With best wishes
Dmitry