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The register TPM_CRB_CTRL_REQ_x contains bits goIdle and cmdReady for SW to indicate that the device can enter or should exit the idle state. The legacy ACPI-start (SMI + DMA) based devices do not support these bits and the idle state management is not exposed to the host SW. Thus, this functionality only is enabled only for a CRB start (MMIO) based devices. Based on Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> original patch: 'tpm_crb: implement power tpm crb power management' To keep the implementation local to the hw we don't use wait_for_tpm_stat for polling the TPM_CRB_CTRL_REQ. [jarkko.sakkinen@linux.intel.com: removed cmdReady debug trace on a success case due the heavy amount of log traffic it causes.] Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> |
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| .. | ||
| st33zp24 | ||
| Kconfig | ||
| Makefile | ||
| tpm2-cmd.c | ||
| tpm_acpi.c | ||
| tpm_atmel.c | ||
| tpm_atmel.h | ||
| tpm_crb.c | ||
| tpm_eventlog.c | ||
| tpm_eventlog.h | ||
| tpm_i2c_atmel.c | ||
| tpm_i2c_infineon.c | ||
| tpm_i2c_nuvoton.c | ||
| tpm_ibmvtpm.c | ||
| tpm_ibmvtpm.h | ||
| tpm_infineon.c | ||
| tpm_nsc.c | ||
| tpm_of.c | ||
| tpm_ppi.c | ||
| tpm_tis_core.c | ||
| tpm_tis_core.h | ||
| tpm_tis_spi.c | ||
| tpm_tis.c | ||
| tpm_vtpm_proxy.c | ||
| tpm-chip.c | ||
| tpm-dev.c | ||
| tpm-interface.c | ||
| tpm-sysfs.c | ||
| tpm.h | ||
| xen-tpmfront.c | ||