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| author |   Etienne Carriere <etienne.carriere@foss.st.com> | 2021-11-30 08:54:53 +0100 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2021-12-11 16:48:05 +1100 |
| commit | 0a2f9f57c6ba4730f02df532e03316535a96fef8 (patch) | |
| tree | e3716db6958b55be2d15bb5d270ca34921278e20 /drivers/crypto/stm32/stm32-cryp.c | |
| parent | crypto: dh - remove duplicate includes (diff) | |
| download | linux-dev-0a2f9f57c6ba4730f02df532e03316535a96fef8.tar.xz linux-dev-0a2f9f57c6ba4730f02df532e03316535a96fef8.zip | |
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: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@foss.st.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
| -rw-r--r-- | drivers/crypto/stm32/stm32-cryp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/crypto/stm32/stm32-cryp.c b/drivers/crypto/stm32/stm32-cryp.c index 7389a0536ff0..dcdd313485de 100644 --- a/drivers/crypto/stm32/stm32-cryp.c +++ b/drivers/crypto/stm32/stm32-cryp.c @@ -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 @@ err_engine1: 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); |