github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 20:54:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

bus: mhi: host: pci_generic: Set 'mhi_cntrl->no_m3' flag

Browse Source 
Commit 0494cf9793 ("bus: mhi: host: pci_generic: Disable runtime PM for
QDU100") added the 'no_m3' flag to indicate that the QDU100 device doesn't
support M3 state and used this flag to skip runtime PM. But it didn't
prevent the MHI bus from transitioning the device to M3 during system
suspend.

So set 'mhi_cntrl->no_m3' flag based on the local 'info->no_m3' flag to
indicate MHI bus that this device doesn't support M3 state so that it can
skip the transition.

Cc: stable+noautosel@kernel.org # depends on the 'mhi_cntrl->no_m3' flag addition
Fixes: 0494cf9793 ("bus: mhi: host: pci_generic: Disable runtime PM for QDU100")
Reported-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
This commit is contained in:
Manivannan Sadhasivam 2026-07-09 09:26:49 +02:00
parent 753aa72545
commit 0936a8780e
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/bus/mhi/host/pci_generic.c
View File

@ -1395,6 +1395,7 @@ static int mhi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
mhi_cntrl->iova_stop = (dma_addr_t)DMA_BIT_MASK(dma_data_width);
mhi_cntrl->fw_image = info->fw;
mhi_cntrl->edl_image = info->edl;
mhi_cntrl->no_m3 = info->no_m3;
mhi_cntrl->read_reg = mhi_pci_read_reg;
mhi_cntrl->write_reg = mhi_pci_write_reg;