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crypto: ccp - Add support for ringing a platform doorbell

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Some platforms support using a doorbell to communicate. Export
this feature for other drivers to utilize as well.

Link: https://lore.kernel.org/linux-i2c/20220916131854.687371-3-jsd@semihalf.com/
Suggested-by: Jan Dabros <jsd@semihalf.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Mario Limonciello
2023-03-10 15:19:50 -06:00
committed by Herbert Xu
parent 2235123924
commit d5812571f5
6 changed files with 90 additions and 0 deletions
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3
include/linux/psp.h
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@@ -23,4 +23,7 @@
#define PSP_CMDRESP_RECOVERY BIT(30)
#define PSP_CMDRESP_RESP BIT(31)
#define PSP_DRBL_MSG PSP_CMDRESP_CMD
#define PSP_DRBL_RING BIT(0)
#endif /* __PSP_H */