Commit 0a2f9f57 authored by Etienne Carriere's avatar Etienne Carriere Committed by Herbert Xu
Browse files

crypto: stm32/cryp - defer probe for reset controller 



Change stm32 CRYP driver to defer its probe operation when
reset controller device is registered but has not been probed yet.

Signed-off-by: default avatarEtienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: default avatarNicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 3219c2b1

drivers/crypto/stm32/stm32-cryp.c

+6 −2
Original line number Diff line number Diff line
@@ -1973,7 +1973,11 @@ static int stm32_cryp_probe(struct platform_device *pdev) 
	pm_runtime_enable(dev);



	rst = devm_reset_control_get(dev, NULL);

	if (!IS_ERR(rst)) {

	if (IS_ERR(rst)) {

		ret = PTR_ERR(rst);

		if (ret == -EPROBE_DEFER)

			goto err_rst;

	} else {

		reset_control_assert(rst);

		udelay(2);

		reset_control_deassert(rst);
@@ -2024,7 +2028,7 @@ static int stm32_cryp_probe(struct platform_device *pdev) 
	spin_lock(&cryp_list.lock);

	list_del(&cryp->list);

	spin_unlock(&cryp_list.lock);



err_rst:

	pm_runtime_disable(dev);

	pm_runtime_put_noidle(dev);

	pm_runtime_disable(dev);