diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 17:22:10 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-09-21 10:46:51 +0200 |
| commit | 94cc485338a30c50c74a7bb02d14a52f35ff41c3 (patch) | |
| tree | 6569cdf74de31ce07687dadec8475ee0e6b2dfe6 /src/drivers/i2c/tpm/tpm.h | |
| parent | 2e79009503bcb0bc324ca60f9d4a9121dcdcbf84 (diff) | |
drivers/i2c/tpm/cr50: Support interrupts for status
Support reading the ACPI GPE status (on x86) to determine when
the cr50 is ready to return response data or is done processing
written data. If the interrupt is not defined by Kconfig then
it will continue to use the safe delay.
This was tested with reef hardware and a modified cr50 image
that generates interrupts at the intended points.
BUG=chrome-os-partner:53336
Change-Id: Ic8f805159650c45382cacac8840450a1f8b4d7a1
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16672
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/drivers/i2c/tpm/tpm.h')
| -rw-r--r-- | src/drivers/i2c/tpm/tpm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/drivers/i2c/tpm/tpm.h b/src/drivers/i2c/tpm/tpm.h index 048c848de2..b6dda1af47 100644 --- a/src/drivers/i2c/tpm/tpm.h +++ b/src/drivers/i2c/tpm/tpm.h @@ -74,6 +74,7 @@ struct tpm_vendor_specific { uint8_t req_complete_val; uint8_t req_canceled; int irq; + int (*irq_status)(int irq); int (*recv)(struct tpm_chip *, uint8_t *, size_t); int (*send)(struct tpm_chip *, uint8_t *, size_t); void (*cancel)(struct tpm_chip *); |