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Subject[PATCH 08/12] crypto: caam - use devres to de-initialize QI
Date
Use devres to de-initialize the QI and drop explicit de-initialization
code in caam_remove().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Chris Healy <cphealy@gmail.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Horia Geantă <horia.geanta@nxp.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Iuliana Prodan <iuliana.prodan@nxp.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
drivers/crypto/caam/ctrl.c | 14 +-------------
drivers/crypto/caam/intern.h | 3 ---
drivers/crypto/caam/qi.c | 8 ++++++--
drivers/crypto/caam/qi.h | 1 -
4 files changed, 7 insertions(+), 19 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 25f8f76551a5..37cd04f8ddb1 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -333,11 +333,6 @@ static int caam_remove(struct platform_device *pdev)
/* Remove platform devices under the crypto node */
of_platform_depopulate(ctrldev);

-#ifdef CONFIG_CAAM_QI
- if (ctrlpriv->qi_init)
- caam_qi_shutdown(ctrldev);
-#endif
-
return 0;
}

@@ -770,7 +765,7 @@ static int caam_probe(struct platform_device *pdev)
ret = of_platform_populate(nprop, caam_match, NULL, dev);
if (ret) {
dev_err(dev, "JR platform devices creation error\n");
- goto shutdown_qi;
+ return ret;
}

ring = 0;
@@ -931,13 +926,6 @@ static int caam_probe(struct platform_device *pdev)
caam_remove:
caam_remove(pdev);
return ret;
-
-shutdown_qi:
-#ifdef CONFIG_CAAM_QI
- if (ctrlpriv->qi_init)
- caam_qi_shutdown(dev);
-#endif
- return ret;
}

static struct platform_driver caam_driver = {
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index 359eb76d1259..c7c10c90464b 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -81,9 +81,6 @@ struct caam_drv_private {
*/
u8 total_jobrs; /* Total Job Rings in device */
u8 qi_present; /* Nonzero if QI present in device */
-#ifdef CONFIG_CAAM_QI
- u8 qi_init; /* Nonzero if QI has been initialized */
-#endif
u8 mc_en; /* Nonzero if MC f/w is active */
int secvio_irq; /* Security violation interrupt number */
int virt_en; /* Virtualization enabled in CAAM */
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index 378f627e1d64..dacf2fa4aa8e 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -500,9 +500,10 @@ void caam_drv_ctx_rel(struct caam_drv_ctx *drv_ctx)
}
EXPORT_SYMBOL(caam_drv_ctx_rel);

-void caam_qi_shutdown(struct device *qidev)
+static void caam_qi_shutdown(void *data)
{
int i;
+ struct device *qidev = data;
struct caam_qi_priv *priv = &qipriv;
const cpumask_t *cpus = qman_affine_cpus();

@@ -761,7 +762,10 @@ int caam_qi_init(struct platform_device *caam_pdev)
&times_congested, &caam_fops_u64_ro);
#endif

- ctrlpriv->qi_init = 1;
+ err = devm_add_action_or_reset(qidev, caam_qi_shutdown, ctrlpriv);
+ if (err)
+ return err;
+
dev_info(qidev, "Linux CAAM Queue I/F driver initialised\n");
return 0;
}
diff --git a/drivers/crypto/caam/qi.h b/drivers/crypto/caam/qi.h
index db0549549e3b..848958951f68 100644
--- a/drivers/crypto/caam/qi.h
+++ b/drivers/crypto/caam/qi.h
@@ -147,7 +147,6 @@ int caam_drv_ctx_update(struct caam_drv_ctx *drv_ctx, u32 *sh_desc);
void caam_drv_ctx_rel(struct caam_drv_ctx *drv_ctx);

int caam_qi_init(struct platform_device *pdev);
-void caam_qi_shutdown(struct device *dev);

/**
* qi_cache_alloc - Allocate buffers from CAAM-QI cache
--
2.21.0
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