diff options
| author | Jason Gunthorpe <jgunthorpe@obsidianresearch.com> | 2016-11-08 01:44:31 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-11-28 02:31:31 +0300 |
| commit | 420d439849cabaa0587c424b09b9507108a4e058 (patch) | |
| tree | 8c2bbf040d0ed3c6ca5f26068ced642d9ef10991 /drivers/char/tpm | |
| parent | 7ea7861c8c2462af932410c54542cb279683eaf8 (diff) | |
| download | linux-420d439849cabaa0587c424b09b9507108a4e058.tar.xz | |
tpm_tis: Allow tpm_tis to be bound using DT
This provides an open firwmare driver binding for tpm_tis. OF
is useful on arches where ACPI/PNP is not used.
The tcg,tpm-tis-mmio register map interface is specified by the TCG.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers/char/tpm')
| -rw-r--r-- | drivers/char/tpm/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/char/tpm/tpm_tis.c | 11 |
2 files changed, 12 insertions, 1 deletions
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index 9faa0b1e7766..277186d3b668 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -32,7 +32,7 @@ config TCG_TIS_CORE config TCG_TIS tristate "TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface" - depends on X86 + depends on X86 || OF select TCG_TIS_CORE ---help--- If you have a TPM security chip that is compliant with the diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index eaf5730d79eb..0127af130cb1 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -28,6 +28,8 @@ #include <linux/wait.h> #include <linux/acpi.h> #include <linux/freezer.h> +#include <linux/of.h> +#include <linux/of_device.h> #include "tpm.h" #include "tpm_tis_core.h" @@ -354,12 +356,21 @@ static int tpm_tis_plat_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id tis_of_platform_match[] = { + {.compatible = "tcg,tpm-tis-mmio"}, + {}, +}; +MODULE_DEVICE_TABLE(of, tis_of_platform_match); +#endif + static struct platform_driver tis_drv = { .probe = tpm_tis_plat_probe, .remove = tpm_tis_plat_remove, .driver = { .name = "tpm_tis", .pm = &tpm_tis_pm, + .of_match_table = of_match_ptr(tis_of_platform_match), }, }; |