From: Corentin Labbe <clabbe@baylibre.com>
Date: Tue, 27 Sep 2022 07:54:52 +0000 (+0000)
Subject: crypto: rockchip - handle reset also in PM
X-Git-Tag: v6.6.7~3901^2~145
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6f61192549d0214f8d9d1e1d3152e450658ed1e9;p=platform%2Fkernel%2Flinux-starfive.git

crypto: rockchip - handle reset also in PM

reset could be handled by PM functions.
We keep the initial reset pulse to be sure the hw is a know device state
after probe.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index d9258b9..399829e 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -74,14 +74,23 @@ static int rk_crypto_pm_suspend(struct device *dev)
 	struct rk_crypto_info *rkdev = dev_get_drvdata(dev);
 
 	rk_crypto_disable_clk(rkdev);
+	reset_control_assert(rkdev->rst);
+
 	return 0;
 }
 
 static int rk_crypto_pm_resume(struct device *dev)
 {
 	struct rk_crypto_info *rkdev = dev_get_drvdata(dev);
+	int ret;
+
+	ret = rk_crypto_enable_clk(rkdev);
+	if (ret)
+		return ret;
+
+	reset_control_deassert(rkdev->rst);
+	return 0;
 
-	return rk_crypto_enable_clk(rkdev);
 }
 
 static const struct dev_pm_ops rk_crypto_pm_ops = {
@@ -222,13 +231,6 @@ static void rk_crypto_unregister(void)
 	}
 }
 
-static void rk_crypto_action(void *data)
-{
-	struct rk_crypto_info *crypto_info = data;
-
-	reset_control_assert(crypto_info->rst);
-}
-
 static const struct of_device_id crypto_of_id_table[] = {
 	{ .compatible = "rockchip,rk3288-crypto" },
 	{}
@@ -258,10 +260,6 @@ static int rk_crypto_probe(struct platform_device *pdev)
 	usleep_range(10, 20);
 	reset_control_deassert(crypto_info->rst);
 
-	err = devm_add_action_or_reset(dev, rk_crypto_action, crypto_info);
-	if (err)
-		goto err_crypto;
-
 	crypto_info->reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(crypto_info->reg)) {
 		err = PTR_ERR(crypto_info->reg);