matthew/sonic-buildimage
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

[celestica dx010] comment out the initialization of PCA9541 (#5891)

Browse Source 
The original code tried to initialize PCA9541 without having the
driver loaded. As result the initialization didn't take effect.

Recently PCA9541 driver was added to the kernel and since then
the initialization takes effect and has negatively impacted the
platform stability.

Commenting the initialization code out to restore the original
behavior while analyzing further.

Signed-off-by: Ying Xie <ying.xie@microsoft.com>
This commit is contained in:
Ying Xie 2020-11-10 16:53:27 -08:00 committed by GitHub
parent 33076348ca
commit b5cfc02552
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
platform/broadcom/sonic-platform-modules-cel/debian/platform-modules-dx010.init
View File

@ -63,7 +63,14 @@ start)
# Attach PCA9541 Ox70 Master Selector
chmod 755 /sys/bus/i2c/devices/i2c-${devnum}/new_device
echo pca9541 0x70 > /sys/bus/i2c/devices/i2c-${devnum}/new_device
# FIXME: commenting out the following line.
# there had been no pca9541 driver loaded on Celestica platform,
# the recent addition of this driver casued following line
# becoming effictive, but negatively impacted the platform
# stability. Commenting it out restores the original behavior
# on Celestica platform.
# This change should be further analyzed and updated.
# echo pca9541 0x70 > /sys/bus/i2c/devices/i2c-${devnum}/new_device
sleep 1
# Attach PCA9548 0x71 Channel Extender for Main Board