diff options
author | Stefan Agner <stefan.agner@toradex.com> | 2019-06-03 10:59:09 +0200 |
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committer | Stefan Agner <stefan.agner@toradex.com> | 2019-06-03 10:59:09 +0200 |
commit | 2115c1bc6e396d5ffe9ecbe394d1c50a6e25c404 (patch) | |
tree | 20fff445991414f23c0a29237940b75cd756de86 /drivers/crypto/ccree/cc_fips.c | |
parent | b794ea49ba3816c0d5cf05506964a8e69ce4efa3 (diff) | |
parent | 3f7c1cab1a61108821cf47dda8a32ed25cc3588b (diff) |
Merge tag 'v5.0.19' into toradex_5.0.ytoradex_5.0.y
This is the 5.0.19 stable release
Diffstat (limited to 'drivers/crypto/ccree/cc_fips.c')
-rw-r--r-- | drivers/crypto/ccree/cc_fips.c | 23 |
1 files changed, 15 insertions, 8 deletions
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; } |