Messages in this thread | | | Subject | [PATCH v2 0/1] i2c: Restore power status of device if probe fail or device is removed | From | Ricardo Ribalda <> | Date | Wed, 09 Nov 2022 16:17:05 +0100 |
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We have discovered that some power lines were always on even if the devices on that power line was not used.
This happens because we failed to probe a device on the i2c bus, and the ACPI Power Resource were never turned off.
This patch tries to fix this issue.
To: Wolfram Sang <wsa@kernel.org> To: Sakari Ailus <sakari.ailus@linux.intel.com> To: Tomasz Figa <tfiga@chromium.org> To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Hidenori Kobayashi <hidenorik@google.com> Cc: linux-i2c@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
--- Changes in v2: - Cover also device remove - Link to v1: https://lore.kernel.org/r/20221109-i2c-waive-v1-0-ed70a99b990d@chromium.org
--- Ricardo Ribalda (1): i2c: Restore initial power state when we are done.
drivers/i2c/i2c-core-base.c | 7 ++++--- include/linux/i2c.h | 3 +++ 2 files changed, 7 insertions(+), 3 deletions(-) --- base-commit: f141df371335645ce29a87d9683a3f79fba7fd67 change-id: 20221109-i2c-waive-ae97fea1f1b5
Best regards, -- Ricardo Ribalda <ribalda@chromium.org>
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