Messages in this thread | | | Date | Wed, 18 May 2022 18:57:57 +0530 | From | Manivannan Sadhasivam <> | Subject | Re: [PATCH v2 3/3] PCI: qcom: Add system PM support |
| |
On Wed, May 18, 2022 at 03:23:58PM +0200, Christoph Hellwig wrote: > On Wed, May 18, 2022 at 06:49:13PM +0530, Manivannan Sadhasivam wrote: > > From: Prasad Malisetty <quic_pmaliset@quicinc.com> > > > > Add suspend and resume callbacks to handle system suspend and resume in > > the Qcom PCIe controller driver. When the system suspends, PME turnoff > > message will be sent to the device and the RC driver will wait for the > > device to enter L23 Ready state. After that, the PHY will be powered down > > and clocks/regulators will be disabled. > > So what about just not doing this stupid power disabling to start > with? Unlike x86 where we do not have choice due to the BIOS, we > apparently do here. And disabling power is the wrong thing to do at > least for SSDs as it massively increases the wear on the NAND.
That's the requirement the Chromebook based on SC7280 has. I will check internally and get back.
Thanks, Mani
-- மணிவண்ணன் சதாசிவம்
| |