diff options
Diffstat (limited to 'drivers/crypto/ccree/cc_pm.c')
| -rw-r--r-- | drivers/crypto/ccree/cc_pm.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index 6ff7e75ad90e..2dad9c9543c6 100644 --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 -/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ +/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ #include <linux/kernel.h> #include <linux/interrupt.h> @@ -11,6 +11,7 @@ #include "cc_ivgen.h" #include "cc_hash.h" #include "cc_pm.h" +#include "cc_fips.h" #define POWER_DOWN_ENABLE 0x01 #define POWER_DOWN_DISABLE 0x00 @@ -25,13 +26,13 @@ int cc_pm_suspend(struct device *dev) int rc; dev_dbg(dev, "set HOST_POWER_DOWN_EN\n"); - cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); rc = cc_suspend_req_queue(drvdata); if (rc) { dev_err(dev, "cc_suspend_req_queue (%x)\n", rc); return rc; } fini_cc_regs(drvdata); + cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); cc_clk_off(drvdata); return 0; } @@ -42,19 +43,21 @@ int cc_pm_resume(struct device *dev) struct cc_drvdata *drvdata = dev_get_drvdata(dev); dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n"); - cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE); - + /* Enables the device source clk */ rc = cc_clk_on(drvdata); if (rc) { dev_err(dev, "failed getting clock back on. We're toast.\n"); return rc; } + cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE); rc = init_cc_regs(drvdata, false); if (rc) { dev_err(dev, "init_cc_regs (%x)\n", rc); return rc; } + /* check if tee fips error occurred during power down */ + cc_tee_handle_fips_error(drvdata); rc = cc_resume_req_queue(drvdata); if (rc) { |