[backport]: i2c: mux: pca954x: allow management of device idle state via sysfs #177
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On what device is this tested? It’d be great, if you sent a backport request to [email protected], so it gets added to the stable series. |
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4 tasks
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tested here. sonic-net/sonic-buildimage#6429 |
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Thank you for the reference. Commits should still be self-contained, and people cannot be expected to crossreference commits or even repositories. It’d be great, if the Celestica DX010 would be mentioned here too. Also, I really think a message to [email protected] with the backport request should be sent. (And soon SONiC should switch to Linux 5.10 anyway. ;-)) |
driver-i2c-mux-pca954x-allow-management-of-device-idle-stat.patch Signed-off-by: Guohan Lu <[email protected]>
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added the tested message. those patches will be removed 5.2-rc1. I haven't sent patch to [email protected] before. let me see what needs to be done before send to that mailing list. |
4 tasks
jleveque
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Jun 5, 2021
#### Why I did it - After [sonic-linux-kernel#177](sonic-net/sonic-linux-kernel#177) changes, the I2C mux channels of Baseboard and Switchboard CPLDs are moved from i2c-4 and i2c-5 to i2c-36 and i2c-37 respectively. - This caused QSFP driver initialization of i2c-36 to i2c-41 to fail causing the ports from Ethernet208 to Ethernet248 fail. #### How I did it - The fix to this problem is to change the order of QSFP driver initialization to I2C mux channels. - Instead of the order i2c-10 to i2c-41, the order i2c-4 to i2c-35 is being utilized. - Also, need to change the i2c-mux-channel number for Baseboard CPLD and switchboard CPLD in scripts to access them.
qiluo-msft
pushed a commit
to sonic-net/sonic-buildimage
that referenced
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Jun 9, 2021
#### Why I did it - After [sonic-linux-kernel#177](sonic-net/sonic-linux-kernel#177) changes, the I2C mux channels of Baseboard and Switchboard CPLDs are moved from i2c-4 and i2c-5 to i2c-36 and i2c-37 respectively. - This caused QSFP driver initialization of i2c-36 to i2c-41 to fail causing the ports from Ethernet208 to Ethernet248 fail. #### How I did it - The fix to this problem is to change the order of QSFP driver initialization to I2C mux channels. - Instead of the order i2c-10 to i2c-41, the order i2c-4 to i2c-35 is being utilized. - Also, need to change the i2c-mux-channel number for Baseboard CPLD and switchboard CPLD in scripts to access them.
carl-nokia
pushed a commit
to carl-nokia/sonic-buildimage
that referenced
this pull request
Aug 7, 2021
#### Why I did it - After [sonic-linux-kernel#177](sonic-net/sonic-linux-kernel#177) changes, the I2C mux channels of Baseboard and Switchboard CPLDs are moved from i2c-4 and i2c-5 to i2c-36 and i2c-37 respectively. - This caused QSFP driver initialization of i2c-36 to i2c-41 to fail causing the ports from Ethernet208 to Ethernet248 fail. #### How I did it - The fix to this problem is to change the order of QSFP driver initialization to I2C mux channels. - Instead of the order i2c-10 to i2c-41, the order i2c-4 to i2c-35 is being utilized. - Also, need to change the i2c-mux-channel number for Baseboard CPLD and switchboard CPLD in scripts to access them.
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f1fb64b04b: driver-i2c-mux-pca954x-allow-management-of-device-idle-stat.patch (v5.2-rc1)
ddd7c492d: i2c: mux: pca954x: remove support for unused platform data (v5.2-rc1)
tested on celestica dx010
Signed-off-by: Guohan Lu [email protected]