Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

mfd: lpss: Fix enumerate i2c device issue with kernels < 6.x #150

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

mfd: lpss: Fix enumerate i2c device issue with kernels < 6.x #150

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 4 additions & 0 deletions README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -192,3 +192,7 @@ Three ways are available:
sudo dkms add .
sudo dkms autoinstall ipu6-drivers/0.0.0
```

### Note
If your kernel version is below v5.19, you will need to apply this patch.
On the intel platform, The i2c port 6 and 7 might not have been registered in the PCIe bus.
29 changes: 29 additions & 0 deletions patch/0001-mfd-lpss-Fix-enumerate-i2c-device-issue.patch
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,29 @@
From 7d333ca1a7e9ada6e8513fc90c067616c0172036 Mon Sep 17 00:00:00 2001
From: "jason.z.chen" <[email protected]>
Date: Thu, 2 Feb 2023 16:28:17 +0800
Subject: [PATCH] mfd: lpss: Fix enumerate i2c device issue

Add the device id of pci for i2c controller which can be
recognized by lpss driver

Signed-off-by: jason.z.chen <[email protected]>
---
drivers/mfd/intel-lpss-pci.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/intel-lpss-pci.c b/drivers/mfd/intel-lpss-pci.c
index c54d19fb184c..2d7e73477714 100644
--- a/drivers/mfd/intel-lpss-pci.c
+++ b/drivers/mfd/intel-lpss-pci.c
@@ -305,6 +305,8 @@ static const struct pci_device_id intel_lpss_pci_ids[] = {
{ PCI_VDEVICE(INTEL, 0x51c5), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x51c6), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x51c7), (kernel_ulong_t)&bxt_uart_info },
+ { PCI_VDEVICE(INTEL, 0x51d8), (kernel_ulong_t)&bxt_i2c_info },
+ { PCI_VDEVICE(INTEL, 0x51d9), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x51e8), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x51e9), (kernel_ulong_t)&bxt_i2c_info },
{ PCI_VDEVICE(INTEL, 0x51ea), (kernel_ulong_t)&bxt_i2c_info },
--
2.34.1