Re: [PATCH v9 15/17] tpm: introduce tpm_chip_start() and tpm_chip_stop()
From: Stefan Berger <stefanb@linux.ibm.com>
Date: 2018-11-19 14:14:05
Also in:
linux-security-module, lkml
From: Stefan Berger <stefanb@linux.ibm.com>
Date: 2018-11-19 14:14:05
Also in:
linux-security-module, lkml
+} + +/** + * tpm_chip_stop() - power off the TPM + * @chip: a TPM chip to use + * @flags: TPM transmit flags + * + * Return: + * * The response length - OK + * * -errno - A system error
This function returns void!
+ */
+void tpm_chip_stop(struct tpm_chip *chip, unsigned int flags)
+{
+ tpm_go_idle(chip, flags);
+ tpm_relinquish_locality(chip, flags);
+ if (chip->ops->clk_enable)
+ chip->ops->clk_enable(chip, false);
+}
+