Public bug reported: [ Impact ]
* With current use of non-devm functions the user is responsible for freeing the resources and since this is not handled currently the driver does not probe the sensor on the second load, since resources are not freed. * Here is a dmesg snippet: On first load ubuntu@kria:~$ sudo dmesg | grep imx547 [ 72.621037] imx547: module is from the staging directory, the quality is unknown, you have been warned. [ 72.628992] imx547 7-001a: imx547 : imx547 probe success ! On second load: ubuntu@kria:~$ sudo dmesg | grep imx547 [ 312.319586] imx547 7-001a: GT TRX Reset GPIO not setup in DT [ 312.325487] imx547: probe of 7-001a failed with error -16 * New implementation of using device managed ie devm_* functions ensures that resource is automatically removed when driver is unloaded. [ Test Plan ] * Xilinx will verify the functionality when testing kernel is provided. [ Where problems could occur ] * Since freeing of the GPIO resource is not explicitly handled in current implementation the driver fails to probe the sensor and fails to add it to media subsystem. [ Other Info ] * Patch/Tag to be included : https://github.com/Xilinx/mv-camera-sensor- module/releases/tag/v0.3 ** Affects: linux-xilinx-zynqmp (Ubuntu) Importance: Undecided Status: Confirmed ** Affects: linux-xilinx-zynqmp (Ubuntu Jammy) Importance: Medium Assignee: Portia Stephens (portias) Status: In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-xilinx-zynqmp in Ubuntu. https://bugs.launchpad.net/bugs/2076108 Title: Update IMX547 driver code Status in linux-xilinx-zynqmp package in Ubuntu: Confirmed Status in linux-xilinx-zynqmp source package in Jammy: In Progress Bug description: [ Impact ] * With current use of non-devm functions the user is responsible for freeing the resources and since this is not handled currently the driver does not probe the sensor on the second load, since resources are not freed. * Here is a dmesg snippet: On first load ubuntu@kria:~$ sudo dmesg | grep imx547 [ 72.621037] imx547: module is from the staging directory, the quality is unknown, you have been warned. [ 72.628992] imx547 7-001a: imx547 : imx547 probe success ! On second load: ubuntu@kria:~$ sudo dmesg | grep imx547 [ 312.319586] imx547 7-001a: GT TRX Reset GPIO not setup in DT [ 312.325487] imx547: probe of 7-001a failed with error -16 * New implementation of using device managed ie devm_* functions ensures that resource is automatically removed when driver is unloaded. [ Test Plan ] * Xilinx will verify the functionality when testing kernel is provided. [ Where problems could occur ] * Since freeing of the GPIO resource is not explicitly handled in current implementation the driver fails to probe the sensor and fails to add it to media subsystem. [ Other Info ] * Patch/Tag to be included : https://github.com/Xilinx/mv-camera- sensor-module/releases/tag/v0.3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/+bug/2076108/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
