From: Ofir Drang Date: Thu, 18 Apr 2019 13:39:08 +0000 (+0300) Subject: crypto: ccree - HOST_POWER_DOWN_EN should be the last CC access during suspend X-Git-Tag: v5.15~6082^2~36 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3499efbeed39d114873267683b9e776bcb34b058;p=platform%2Fkernel%2Flinux-starfive.git crypto: ccree - HOST_POWER_DOWN_EN should be the last CC access during suspend During power management suspend the driver need to prepare the device for the power down operation and as a last indication write to the HOST_POWER_DOWN_EN register which signals to the hardware that The ccree is ready for power down. Signed-off-by: Ofir Drang Signed-off-by: Gilad Ben-Yossef Cc: stable@vger.kernel.org # v4.19+ Signed-off-by: Herbert Xu --- diff --git a/drivers/crypto/ccree/cc_pm.c b/drivers/crypto/ccree/cc_pm.c index 9a5abe4..77025da 100644 --- a/drivers/crypto/ccree/cc_pm.c +++ b/drivers/crypto/ccree/cc_pm.c @@ -25,13 +25,13 @@ 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; }