crypto: atmel-{aes,sha,tdes} - Retire crypto_platform_data

These drivers no longer need it as they are only probed via DT.
crypto_platform_data was allocated but unused, so remove it.
This is a follow up for:
commit 45a536e3 ("crypto: atmel-tdes - Retire dma_request_slave_channel_compat()")
commit db28512f ("crypto: atmel-sha - Retire dma_request_slave_channel_compat()")
commit 62f72cbd ("crypto: atmel-aes - Retire dma_request_slave_channel_compat()")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/atmel-aes.c

@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/device.h>
+#include <linux/dmaengine.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -37,7 +38,6 @@
 #include <crypto/xts.h>
 #include <crypto/internal/aead.h>
 #include <crypto/internal/skcipher.h>
-#include <linux/platform_data/crypto-atmel.h>
 #include "atmel-aes-regs.h"
 #include "atmel-authenc.h"
 
@@ -2479,45 +2479,15 @@ static const struct of_device_id atmel_aes_dt_ids[] = {
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, atmel_aes_dt_ids);
-
-static struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct crypto_platform_data *pdata;
-
-	if (!np) {
-		dev_err(&pdev->dev, "device node not found\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	return pdata;
-}
-#else
-static inline struct crypto_platform_data *atmel_aes_of_init(struct platform_device *pdev)
-{
-	return ERR_PTR(-EINVAL);
-}
 #endif
 
 static int atmel_aes_probe(struct platform_device *pdev)
 {
 	struct atmel_aes_dev *aes_dd;
-	struct crypto_platform_data *pdata;
 	struct device *dev = &pdev->dev;
 	struct resource *aes_res;
 	int err;
 
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		pdata = atmel_aes_of_init(pdev);
-		if (IS_ERR(pdata))
-			return PTR_ERR(pdata);
-	}
-
 	aes_dd = devm_kzalloc(&pdev->dev, sizeof(*aes_dd), GFP_KERNEL);
 	if (!aes_dd)
 		return -ENOMEM;

drivers/crypto/atmel-sha.c

@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/device.h>
+#include <linux/dmaengine.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -36,7 +37,6 @@
 #include <crypto/sha.h>
 #include <crypto/hash.h>
 #include <crypto/internal/hash.h>
-#include <linux/platform_data/crypto-atmel.h>
 #include "atmel-sha-regs.h"
 #include "atmel-authenc.h"
 
@@ -2551,34 +2551,11 @@ static const struct of_device_id atmel_sha_dt_ids[] = {
 };
 
 MODULE_DEVICE_TABLE(of, atmel_sha_dt_ids);
-
-static struct crypto_platform_data *atmel_sha_of_init(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct crypto_platform_data *pdata;
-
-	if (!np) {
-		dev_err(&pdev->dev, "device node not found\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	return pdata;
-}
-#else /* CONFIG_OF */
-static inline struct crypto_platform_data *atmel_sha_of_init(struct platform_device *dev)
-{
-	return ERR_PTR(-EINVAL);
-}
 #endif
 
 static int atmel_sha_probe(struct platform_device *pdev)
 {
 	struct atmel_sha_dev *sha_dd;
-	struct crypto_platform_data	*pdata;
 	struct device *dev = &pdev->dev;
 	struct resource *sha_res;
 	int err;
@@ -2650,16 +2627,6 @@ static int atmel_sha_probe(struct platform_device *pdev)
 	atmel_sha_get_cap(sha_dd);
 
 	if (sha_dd->caps.has_dma) {
-		pdata = pdev->dev.platform_data;
-		if (!pdata) {
-			pdata = atmel_sha_of_init(pdev);
-			if (IS_ERR(pdata)) {
-				dev_err(&pdev->dev, "platform data not available\n");
-				err = PTR_ERR(pdata);
-				goto err_iclk_unprepare;
-			}
-		}
-
 		err = atmel_sha_dma_init(sha_dd);
 		if (err)
 			goto err_iclk_unprepare;

drivers/crypto/atmel-tdes.c

@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 
 #include <linux/device.h>
+#include <linux/dmaengine.h>
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/interrupt.h>
@@ -34,7 +35,6 @@
 #include <crypto/algapi.h>
 #include <crypto/internal/des.h>
 #include <crypto/internal/skcipher.h>
-#include <linux/platform_data/crypto-atmel.h>
 #include "atmel-tdes-regs.h"
 
 #define ATMEL_TDES_PRIORITY	300
@@ -1157,34 +1157,11 @@ static const struct of_device_id atmel_tdes_dt_ids[] = {
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, atmel_tdes_dt_ids);
-
-static struct crypto_platform_data *atmel_tdes_of_init(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct crypto_platform_data *pdata;
-
-	if (!np) {
-		dev_err(&pdev->dev, "device node not found\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	return pdata;
-}
-#else /* CONFIG_OF */
-static inline struct crypto_platform_data *atmel_tdes_of_init(struct platform_device *pdev)
-{
-	return ERR_PTR(-EINVAL);
-}
 #endif
 
 static int atmel_tdes_probe(struct platform_device *pdev)
 {
 	struct atmel_tdes_dev *tdes_dd;
-	struct crypto_platform_data	*pdata;
 	struct device *dev = &pdev->dev;
 	struct resource *tdes_res;
 	int err;
@@ -1256,16 +1233,6 @@ static int atmel_tdes_probe(struct platform_device *pdev)
 		goto err_tasklet_kill;
 
 	if (tdes_dd->caps.has_dma) {
-		pdata = pdev->dev.platform_data;
-		if (!pdata) {
-			pdata = atmel_tdes_of_init(pdev);
-			if (IS_ERR(pdata)) {
-				dev_err(&pdev->dev, "platform data not available\n");
-				err = PTR_ERR(pdata);
-				goto err_buff_cleanup;
-			}
-		}
-
 		err = atmel_tdes_dma_init(tdes_dd);
 		if (err)
 			goto err_buff_cleanup;

include/linux/platform_data/crypto-atmel.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __LINUX_CRYPTO_ATMEL_H
-#define __LINUX_CRYPTO_ATMEL_H
-
-#include <linux/platform_data/dma-atmel.h>
-
-/**
- * struct crypto_dma_data - DMA data for AES/TDES/SHA
- */
-struct crypto_dma_data {
-	struct at_dma_slave	txdata;
-	struct at_dma_slave	rxdata;
-};
-
-/**
- * struct crypto_platform_data - board-specific AES/TDES/SHA configuration
- * @dma_slave: DMA slave interface to use in data transfers.
- */
-struct crypto_platform_data {
-	struct crypto_dma_data	*dma_slave;
-};
-
-#endif /* __LINUX_CRYPTO_ATMEL_H */