From 84ee393b1e82628ac7f183d8a68d8ac2cf0ed876 Mon Sep 17 00:00:00 2001 From: Mario Limonciello Date: Thu, 31 Mar 2022 16:12:12 -0500 Subject: [PATCH] crypto: ccp - Allow PSP driver to load without SEV/TEE support Previously the PSP probe routine would fail if both SEV and TEE were missing. This is possibly the case for some client parts. As capabilities can now be accessed from userspace, it may still be useful to have the PSP driver finish loading so that those capabilities can be read. Signed-off-by: Mario Limonciello Acked-by: Tom Lendacky Signed-off-by: Herbert Xu --- drivers/crypto/ccp/psp-dev.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 8cd4041..a3b7b51 100644 --- a/drivers/crypto/ccp/psp-dev.c +++ b/drivers/crypto/ccp/psp-dev.c @@ -99,18 +99,6 @@ static int psp_check_tee_support(struct psp_device *psp) return 0; } -static int psp_check_support(struct psp_device *psp) -{ - int sev_support = psp_check_sev_support(psp); - int tee_support = psp_check_tee_support(psp); - - /* Return error if device neither supports SEV nor TEE */ - if (sev_support && tee_support) - return -ENODEV; - - return 0; -} - static int psp_init(struct psp_device *psp) { int ret; @@ -156,10 +144,6 @@ int psp_dev_init(struct sp_device *sp) if (ret) goto e_disable; - ret = psp_check_support(psp); - if (ret) - goto e_disable; - /* Disable and clear interrupts until ready */ iowrite32(0, psp->io_regs + psp->vdata->inten_reg); iowrite32(-1, psp->io_regs + psp->vdata->intsts_reg); -- 2.7.4