** Description changed: [Impact] TPM module can not initial with Ubuntu kernel [ 28.138216] tpm tpm0: tpm_relinquish_locality: : error -1 [ 28.143808] tpm_tis_spi spi-SMO0768:00: 1.2 TPM (device-id 0xFFFF, rev-id 255) [ 28.145025] tpm tpm0: tpm_try_transmit: tpm_send: error -5 [ 28.899522] tpm tpm0: tpm_relinquish_locality: : error -1 [ 28.904927] tpm tpm0: A TPM error (-5) occurred attempting to determine the timeouts [ 28.913026] tpm_tis_spi: probe of spi-SMO0768:00 failed with error -5 + We have a TPM module but disco kernel can not initial it. The root cause is + DW SPI driver in disco only support chipselect from device-tree and for 5.1 + mainline kernel it can be used with deivce-tree or ACPI. + [Test Case] - Boot Ubuntu on platform with TPM module and `dmesg | grep tpm` + Boot Ubuntu on platform with TPM module and ACPI and `dmesg | grep tpm` [Fix] 9400c41e77b8 linus.wall...@linaro.org 2019-01-09 12:42:18 +0000 spi: dw: Convert to use CS GPIO descriptors f3186dd87669 linus.wall...@linaro.org 2019-01-09 12:39:25 +0000 spi: Optionally use GPIO descriptors for CS GPIOs [Regression Risk] - Enable new ability for DW SPI driver and according to following regression - fix patch. This has been tested around. + Reading first 2 patches for determining regression risk and find out only machine with Designware MMIO SPI and device-tree have risk. Fortunately on mainline kernel we have Jan Kotas tested and report several regressions e.g. default polarity. + + Therefore, another 4 patches is needed to fix the regression on device-tree + machines with DW SPI and that's the only regression risk.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826142 Title: TPM module can not initial To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826142/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
