From: Mario Limonciello Date: Thu, 31 Mar 2022 21:12:12 +0000 (-0500) Subject: crypto: ccp - Allow PSP driver to load without SEV/TEE support X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=84ee393b1e82628ac7f183d8a68d8ac2cf0ed876;p=linux.git 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 --- diff --git a/drivers/crypto/ccp/psp-dev.c b/drivers/crypto/ccp/psp-dev.c index 8cd404121cd5e..a3b7b5130be49 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);