On 12.09.2024 3:39 PM, Qiang Yu wrote: > > On 9/11/2024 11:32 PM, Manivannan Sadhasivam wrote: >> On Wed, Sep 11, 2024 at 04:17:41PM +0800, Qiang Yu wrote: >>> On 8/28/2024 12:58 AM, Manivannan Sadhasivam wrote: >>>> On Tue, Aug 27, 2024 at 02:44:09PM +0300, Dmitry Baryshkov wrote: >>>>> On Tue, 27 Aug 2024 at 09:36, Qiang Yu <quic_qianyu@xxxxxxxxxxx> wrote: >>>>>> On platform x1e80100 QCP, PCIe3 is a standard x8 form factor. Hence, add >>>>>> support to use 3.3v, 3.3v aux and 12v regulators. >>>>> First of all, I don't see corresponding bindings change. >>>>> >>>>> Second, these supplies power up the slot, not the host controller >>>>> itself. As such these supplies do not belong to the host controller >>>>> entry. Please consider using the pwrseq framework instead. >>>>> >>>> Indeed. For legacy reasons, slot power supplies were populated in the host >>>> bridge node itself until recently Rob started objecting it [1]. And it makes >>>> real sense to put these supplies in the root port node and handle them in the >>>> relevant driver. >>>> >>>> I'm still evaluating whether the handling should be done in the portdrv or >>>> pwrctl driver, but haven't reached the conclusion. Pwrctl seems to be the ideal >>>> choice, but I see a few issues related to handling the OF node for the root >>>> port. >>>> >>>> Hope I'll come to a conclusion in the next few days and will update this thread. >>>> >>>> - Mani >>>> >>>> [1] https://lore.kernel.org/lkml/20240604235806.GA1903493-robh@xxxxxxxxxx/ >>> Hi Mani, do you have any updates? >>> >> I'm working with Bartosz to add a new pwrctl driver for rootports. And we are >> debugging an issue currently. Unfortunately, the progress is very slow as I'm on >> vacation still. >> >> Will post the patches once it got resolved. >> >> - Mani > OK, thanks for your update. Qiang, you can still resubmit the rest of the patches without having to wait on that to be resolved Konrad
