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Wysocki" , Wolfram Sang , Sakari Ailus Cc: linux-kernel@vger.kernel.org, Hidenori Kobayashi , linux-i2c@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.11.0-dev-d93f8 X-Developer-Signature: v=1; a=openpgp-sha256; l=1143; i=ribalda@chromium.org; h=from:subject:message-id; bh=RCoBAuMZW6/BLIikAeMUt8nhyD2JRoUp6FKyTIqVRCU=; b=owEBbQKS/ZANAwAKAdE30T7POsSIAcsmYgBja8RznD661Rd7HbrTWcJXxIJZgpI6o1QaSLYeFN7C 1L0SqvyJAjMEAAEKAB0WIQREDzjr+/4oCDLSsx7RN9E+zzrEiAUCY2vEcwAKCRDRN9E+zzrEiJqlD/ 4ki+JPH9bMz8acI0THadDEURL4tP5dToSmi0oS41v5I9+i9x4y5qJSKx2QUGtpwzh23DtpNuJF3TQS F3pUJm8Aw8BP3mBBPls71shgcBCxP9t38czPzUgi9Q803yTqoONn5wdexcKm+MpovKvLGozMqP1YN5 L5ejDI6qwq7ALNbre7kU2ZqOM4bTEDV623tWeqDQxgDy5+HX9b8YSgYgMLjbqPCHYdTvxb8YujzH8i mSVnOXWKDVF3A4R/3myHLDNo12U/gEUkhtHNtY2AB6IVw/anNxKaNNzPN8C8KZP21zlqvkVuYMC5At GuWLTp+w6mezdt8zi/7v0iK1ypcRPQNCswbaYF87MXZpgh8VbAP9xgxsT3fnZg8yI9mogLgOI40Dn3 SR64JcGanNhyC1aIlJHXNew3vr1+WwmO/+0sE0d41ga0UpSDtQ1CQ2XMSUKC9xPQ8GY064qL+jfu26 LzBSwB8OEXZwRml2Wuc9wyM2fQcsrii3fPtSem0WUs/APgKP4tL0L468LveCbh71NcP+BF+HmHZ2B5 u4S9wT1tz6NH5buSpWg4VIRptHWkNzy/ujE8DORi7OLnRb0t78cytGcLjTYZZ6Gxr9+PekFILnJPOT USGbwN1rpeBv0VCtUFmdIavVaz7uO5dxW4XOl4FD4exRKm7u7s9gIxQftFPQ== X-Developer-Key: i=ribalda@chromium.org; a=openpgp; fpr=9EC3BB66E2FC129A6F90B39556A0D81F9F782DA9 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749032237923933174?= X-GMAIL-MSGID: =?utf-8?q?1749032237923933174?= 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 To: Sakari Ailus To: Tomasz Figa To: "Rafael J. Wysocki" Cc: Hidenori Kobayashi Cc: linux-i2c@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ricardo Ribalda --- 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,