** Information type changed from Private to Public
** Changed in: linux (Ubuntu Jammy)
Status: Confirmed => In Progress
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https://bugs.launchpad.net/bugs/2045385
Title:
Add ODM driver rtc-pcf85263
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Jammy:
In Progress
Bug description:
From de5bc92c48fefb23e570a97d12738a39927edb72 Mon Sep 17 00:00:00 2001
From: Filippo Copetti <[email protected]>
Date: Mon, 4 Dec 2023 14:43:41 +0100
Subject: [PATCH 1/3] Add rtc-pcf85263 kernel driver
BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2045385
[ Impact ]
rtc-pcf85263 driver needed for ODM partner
[ Test Plan ]
Load the driver setting the timestamp level to 0 (default to 1) :
modprobe rtc-pcf85263 tsl=0
export the rtc device:
echo "pcf85263 0x51" > /sys/bus/i2c/devices/i2c-1/new_device
RTC device should act as a standard RTC,
hwclock -r -f /dev/rtc1 #for reading
hwclock -w -f /dev/rtc1 #for writing
This driver has anti-tampering function.
Get the current tamper timestamp:
cat /sys/class/rtc/rtc1/device/timestamp1
unmount the bottom metal panel, unscrewing the 6x T-10 screws and let the
anti-tampering goes in open state.
The timestamp should be updated to the current time.
[ Where problems could occur ]
Events could occur on the I2C bus communication.
[ Other Info ]
X-HWE-Bug: Bug #2046985
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