diff --git a/drivers/crypto/ccree/cc_fips.c b/drivers/crypto/ccree/cc_fips.c index b4d0a6d983e0..09f708f6418e 100644 --- a/drivers/crypto/ccree/cc_fips.c +++ b/drivers/crypto/ccree/cc_fips.c @@ -72,20 +72,28 @@ static inline void tee_fips_error(struct device *dev) dev_err(dev, "TEE reported error!\n"); } +/* + * This function check if cryptocell tee fips error occurred + * and in such case triggers system error + */ +void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata) +{ + struct device *dev = drvdata_to_dev(p_drvdata); + + if (!cc_get_tee_fips_status(p_drvdata)) + tee_fips_error(dev); +} + /* Deferred service handler, run as interrupt-fired tasklet */ static void fips_dsr(unsigned long devarg) { struct cc_drvdata *drvdata = (struct cc_drvdata *)devarg; - struct device *dev = drvdata_to_dev(drvdata); - u32 irq, state, val; + u32 irq, val; irq = (drvdata->irq & (CC_GPR0_IRQ_MASK)); if (irq) { - state = cc_ioread(drvdata, CC_REG(GPR_HOST)); - - if (state != (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK)) - tee_fips_error(dev); + cc_tee_handle_fips_error(drvdata); } /* after verifing that there is nothing to do, @@ -113,8 +121,7 @@ int cc_fips_init(struct cc_drvdata *p_drvdata) dev_dbg(dev, "Initializing fips tasklet\n"); tasklet_init(&fips_h->tasklet, fips_dsr, (unsigned long)p_drvdata); - if (!cc_get_tee_fips_status(p_drvdata)) - tee_fips_error(dev); + cc_tee_handle_fips_error(p_drvdata); return 0; } diff --git a/drivers/crypto/ccree/cc_fips.h b/drivers/crypto/ccree/cc_fips.h index 645e096a7a82..67d5fbfa09b5 100644 --- a/drivers/crypto/ccree/cc_fips.h +++ b/drivers/crypto/ccree/cc_fips.h @@ -18,6 +18,7 @@ int cc_fips_init(struct cc_drvdata *p_drvdata); void cc_fips_fini(struct cc_drvdata *drvdata); void fips_handler(struct cc_drvdata *drvdata); void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool ok); +void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata); #else /* CONFIG_CRYPTO_FIPS */ @@ -30,6 +31,7 @@ static inline void cc_fips_fini(struct cc_drvdata *drvdata) {} static inline void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool ok) {} static inline void fips_handler(struct cc_drvdata *drvdata) {} +static inline void cc_tee_handle_fips_error(struct cc_drvdata *p_drvdata) {} #endif /* CONFIG_CRYPTO_FIPS */