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| author | Mario Limonciello <mario.limonciello@amd.com> | 2023-04-14 09:40:07 -0500 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-04-20 18:20:05 +0800 |
| commit | 440da737cf8d35a1b2205678cc1879fa90948f7a (patch) | |
| tree | ac035f97f5f0234a5b0f211ed11e6ce763ca5d82 /drivers/i2c/busses/Kconfig | |
| parent | 1560541631a6f3215d27aeea182a5682644d33ba (diff) | |
| download | linux-440da737cf8d35a1b2205678cc1879fa90948f7a.tar.gz linux-440da737cf8d35a1b2205678cc1879fa90948f7a.tar.bz2 linux-440da737cf8d35a1b2205678cc1879fa90948f7a.zip | |
i2c: designware: Use PCI PSP driver for communication
Currently the PSP semaphore communication base address is discovered
by using an MSR that is not architecturally guaranteed for future
platforms. Also the mailbox that is utilized for communication with
the PSP may have other consumers in the kernel, so it's better to
make all communication go through a single driver.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Mark Hasemeyer <markhas@chromium.org>
Acked-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/i2c/busses/Kconfig')
| -rw-r--r-- | drivers/i2c/busses/Kconfig | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 25eb4e8fd22f..89f8b75043d0 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -566,9 +566,11 @@ config I2C_DESIGNWARE_PLATFORM config I2C_DESIGNWARE_AMDPSP bool "AMD PSP I2C semaphore support" - depends on X86_MSR depends on ACPI + depends on CRYPTO_DEV_SP_PSP depends on I2C_DESIGNWARE_PLATFORM + depends on (I2C_DESIGNWARE_PLATFORM=y && CRYPTO_DEV_CCP_DD=y) || \ + (I2C_DESIGNWARE_PLATFORM=m && CRYPTO_DEV_CCP_DD) help This driver enables managed host access to the selected I2C bus shared between AMD CPU and AMD PSP. |