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-rw-r--r--drivers/crypto/ccp/Makefile9
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes-cmac.c12
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes-xts.c4
-rw-r--r--drivers/crypto/ccp/ccp-crypto-aes.c3
-rw-r--r--drivers/crypto/ccp/ccp-crypto-main.c5
-rw-r--r--drivers/crypto/ccp/ccp-crypto-sha.c12
-rw-r--r--drivers/crypto/ccp/ccp-crypto.h3
-rw-r--r--drivers/crypto/ccp/ccp-dev.c7
-rw-r--r--drivers/crypto/ccp/ccp-dev.h12
-rw-r--r--drivers/crypto/ccp/ccp-ops.c24
-rw-r--r--drivers/crypto/ccp/ccp-pci.c21
-rw-r--r--drivers/crypto/ccp/ccp-platform.c111
12 files changed, 142 insertions, 81 deletions
diff --git a/drivers/crypto/ccp/Makefile b/drivers/crypto/ccp/Makefile
index 7f592d8d07bb..55a1f3951578 100644
--- a/drivers/crypto/ccp/Makefile
+++ b/drivers/crypto/ccp/Makefile
@@ -1,11 +1,6 @@
obj-$(CONFIG_CRYPTO_DEV_CCP_DD) += ccp.o
-ccp-objs := ccp-dev.o ccp-ops.o
-ifdef CONFIG_X86
-ccp-objs += ccp-pci.o
-endif
-ifdef CONFIG_ARM64
-ccp-objs += ccp-platform.o
-endif
+ccp-objs := ccp-dev.o ccp-ops.o ccp-platform.o
+ccp-$(CONFIG_PCI) += ccp-pci.o
obj-$(CONFIG_CRYPTO_DEV_CCP_CRYPTO) += ccp-crypto.o
ccp-crypto-objs := ccp-crypto-main.o \
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
index 8e162ad82085..ea7e8446956a 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes-cmac.c
@@ -23,7 +23,6 @@
#include "ccp-crypto.h"
-
static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
int ret)
{
@@ -38,11 +37,13 @@ static int ccp_aes_cmac_complete(struct crypto_async_request *async_req,
if (rctx->hash_rem) {
/* Save remaining data to buffer */
unsigned int offset = rctx->nbytes - rctx->hash_rem;
+
scatterwalk_map_and_copy(rctx->buf, rctx->src,
offset, rctx->hash_rem, 0);
rctx->buf_count = rctx->hash_rem;
- } else
+ } else {
rctx->buf_count = 0;
+ }
/* Update result area if supplied */
if (req->result)
@@ -202,7 +203,7 @@ static int ccp_aes_cmac_digest(struct ahash_request *req)
}
static int ccp_aes_cmac_setkey(struct crypto_ahash *tfm, const u8 *key,
- unsigned int key_len)
+ unsigned int key_len)
{
struct ccp_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
struct ccp_crypto_ahash_alg *alg =
@@ -292,7 +293,8 @@ static int ccp_aes_cmac_cra_init(struct crypto_tfm *tfm)
crypto_ahash_set_reqsize(ahash, sizeof(struct ccp_aes_cmac_req_ctx));
cipher_tfm = crypto_alloc_cipher("aes", 0,
- CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
if (IS_ERR(cipher_tfm)) {
pr_warn("could not load aes cipher driver\n");
return PTR_ERR(cipher_tfm);
@@ -354,7 +356,7 @@ int ccp_register_aes_cmac_algs(struct list_head *head)
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
index 0cc5594b7de3..52c7395cb8d8 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c
@@ -21,7 +21,6 @@
#include "ccp-crypto.h"
-
struct ccp_aes_xts_def {
const char *name;
const char *drv_name;
@@ -216,7 +215,6 @@ static void ccp_aes_xts_cra_exit(struct crypto_tfm *tfm)
ctx->u.aes.tfm_ablkcipher = NULL;
}
-
static int ccp_register_aes_xts_alg(struct list_head *head,
const struct ccp_aes_xts_def *def)
{
@@ -255,7 +253,7 @@ static int ccp_register_aes_xts_alg(struct list_head *head,
ret = crypto_register_alg(alg);
if (ret) {
pr_err("%s ablkcipher algorithm registration error (%d)\n",
- alg->cra_name, ret);
+ alg->cra_name, ret);
kfree(ccp_alg);
return ret;
}
diff --git a/drivers/crypto/ccp/ccp-crypto-aes.c b/drivers/crypto/ccp/ccp-crypto-aes.c
index e46490db0f63..7984f910884d 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes.c
@@ -22,7 +22,6 @@
#include "ccp-crypto.h"
-
static int ccp_aes_complete(struct crypto_async_request *async_req, int ret)
{
struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
@@ -345,7 +344,7 @@ static int ccp_register_aes_alg(struct list_head *head,
ret = crypto_register_alg(alg);
if (ret) {
pr_err("%s ablkcipher algorithm registration error (%d)\n",
- alg->cra_name, ret);
+ alg->cra_name, ret);
kfree(ccp_alg);
return ret;
}
diff --git a/drivers/crypto/ccp/ccp-crypto-main.c b/drivers/crypto/ccp/ccp-crypto-main.c
index 4d4e016d755b..bdec01ec608f 100644
--- a/drivers/crypto/ccp/ccp-crypto-main.c
+++ b/drivers/crypto/ccp/ccp-crypto-main.c
@@ -33,7 +33,6 @@ static unsigned int sha_disable;
module_param(sha_disable, uint, 0444);
MODULE_PARM_DESC(sha_disable, "Disable use of SHA - any non-zero value");
-
/* List heads for the supported algorithms */
static LIST_HEAD(hash_algs);
static LIST_HEAD(cipher_algs);
@@ -48,6 +47,7 @@ struct ccp_crypto_queue {
struct list_head *backlog;
unsigned int cmd_count;
};
+
#define CCP_CRYPTO_MAX_QLEN 100
static struct ccp_crypto_queue req_queue;
@@ -77,7 +77,6 @@ struct ccp_crypto_cpu {
int err;
};
-
static inline bool ccp_crypto_success(int err)
{
if (err && (err != -EINPROGRESS) && (err != -EBUSY))
@@ -143,7 +142,7 @@ static void ccp_crypto_complete(void *data, int err)
int ret;
if (err == -EINPROGRESS) {
- /* Only propogate the -EINPROGRESS if necessary */
+ /* Only propagate the -EINPROGRESS if necessary */
if (crypto_cmd->ret == -EBUSY) {
crypto_cmd->ret = -EINPROGRESS;
req->complete(req, -EINPROGRESS);
diff --git a/drivers/crypto/ccp/ccp-crypto-sha.c b/drivers/crypto/ccp/ccp-crypto-sha.c
index 96531571f7cf..507b34e0cc19 100644
--- a/drivers/crypto/ccp/ccp-crypto-sha.c
+++ b/drivers/crypto/ccp/ccp-crypto-sha.c
@@ -23,7 +23,6 @@
#include "ccp-crypto.h"
-
static int ccp_sha_complete(struct crypto_async_request *async_req, int ret)
{
struct ahash_request *req = ahash_request_cast(async_req);
@@ -37,11 +36,13 @@ static int ccp_sha_complete(struct crypto_async_request *async_req, int ret)
if (rctx->hash_rem) {
/* Save remaining data to buffer */
unsigned int offset = rctx->nbytes - rctx->hash_rem;
+
scatterwalk_map_and_copy(rctx->buf, rctx->src,
offset, rctx->hash_rem, 0);
rctx->buf_count = rctx->hash_rem;
- } else
+ } else {
rctx->buf_count = 0;
+ }
/* Update result area if supplied */
if (req->result)
@@ -227,8 +228,9 @@ static int ccp_sha_setkey(struct crypto_ahash *tfm, const u8 *key,
}
key_len = digest_size;
- } else
+ } else {
memcpy(ctx->u.sha.key, key, key_len);
+ }
for (i = 0; i < block_size; i++) {
ctx->u.sha.ipad[i] = ctx->u.sha.key[i] ^ 0x36;
@@ -355,7 +357,7 @@ static int ccp_register_hmac_alg(struct list_head *head,
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
@@ -410,7 +412,7 @@ static int ccp_register_sha_alg(struct list_head *head,
ret = crypto_register_ahash(alg);
if (ret) {
pr_err("%s ahash algorithm registration error (%d)\n",
- base->cra_name, ret);
+ base->cra_name, ret);
kfree(ccp_alg);
return ret;
}
diff --git a/drivers/crypto/ccp/ccp-crypto.h b/drivers/crypto/ccp/ccp-crypto.h
index 9aa4ae184f7f..76a96f0f44c6 100644
--- a/drivers/crypto/ccp/ccp-crypto.h
+++ b/drivers/crypto/ccp/ccp-crypto.h
@@ -13,7 +13,6 @@
#ifndef __CCP_CRYPTO_H__
#define __CCP_CRYPTO_H__
-
#include <linux/list.h>
#include <linux/wait.h>
#include <linux/pci.h>
@@ -25,7 +24,6 @@
#include <crypto/hash.h>
#include <crypto/sha.h>
-
#define CCP_CRA_PRIORITY 300
struct ccp_crypto_ablkcipher_alg {
@@ -68,7 +66,6 @@ static inline struct ccp_crypto_ahash_alg *
return container_of(ahash_alg, struct ccp_crypto_ahash_alg, alg);
}
-
/***** AES related defines *****/
struct ccp_aes_ctx {
/* Fallback cipher for XTS with unsupported unit sizes */
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c
index ca29c120b85f..861bacc1bb94 100644
--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -37,7 +37,6 @@ struct ccp_tasklet_data {
struct ccp_cmd *cmd;
};
-
static struct ccp_device *ccp_dev;
static inline struct ccp_device *ccp_get_device(void)
{
@@ -296,11 +295,9 @@ struct ccp_device *ccp_alloc_struct(struct device *dev)
{
struct ccp_device *ccp;
- ccp = kzalloc(sizeof(*ccp), GFP_KERNEL);
- if (ccp == NULL) {
- dev_err(dev, "unable to allocate device struct\n");
+ ccp = devm_kzalloc(dev, sizeof(*ccp), GFP_KERNEL);
+ if (!ccp)
return NULL;
- }
ccp->dev = dev;
INIT_LIST_HEAD(&ccp->cmd);
diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h
index 62ff35a6b9ec..6ff89031fb96 100644
--- a/drivers/crypto/ccp/ccp-dev.h
+++ b/drivers/crypto/ccp/ccp-dev.h
@@ -21,7 +21,7 @@
#include <linux/wait.h>
#include <linux/dmapool.h>
#include <linux/hw_random.h>
-
+#include <linux/bitops.h>
#define MAX_DMAPOOL_NAME_LEN 32
@@ -33,7 +33,6 @@
#define CACHE_NONE 0x00
#define CACHE_WB_NO_ALLOC 0xb7
-
/****** Register Mappings ******/
#define Q_MASK_REG 0x000
#define TRNG_OUT_REG 0x00c
@@ -54,8 +53,8 @@
#define CMD_Q_CACHE_BASE 0x228
#define CMD_Q_CACHE_INC 0x20
-#define CMD_Q_ERROR(__qs) ((__qs) & 0x0000003f);
-#define CMD_Q_DEPTH(__qs) (((__qs) >> 12) & 0x0000000f);
+#define CMD_Q_ERROR(__qs) ((__qs) & 0x0000003f)
+#define CMD_Q_DEPTH(__qs) (((__qs) >> 12) & 0x0000000f)
/****** REQ0 Related Values ******/
#define REQ0_WAIT_FOR_WRITE 0x00000004
@@ -103,7 +102,6 @@
/****** REQ6 Related Values ******/
#define REQ6_MEMTYPE_SHIFT 16
-
/****** Key Storage Block ******/
#define KSB_START 77
#define KSB_END 127
@@ -114,7 +112,7 @@
#define CCP_JOBID_MASK 0x0000003f
#define CCP_DMAPOOL_MAX_SIZE 64
-#define CCP_DMAPOOL_ALIGN (1 << 5)
+#define CCP_DMAPOOL_ALIGN BIT(5)
#define CCP_REVERSE_BUF_SIZE 64
@@ -142,7 +140,6 @@
#define CCP_ECC_RESULT_OFFSET 60
#define CCP_ECC_RESULT_SUCCESS 0x0001
-
struct ccp_device;
struct ccp_cmd;
@@ -261,7 +258,6 @@ struct ccp_device {
unsigned int axcache;
};
-
int ccp_pci_init(void);
void ccp_pci_exit(void);
diff --git a/drivers/crypto/ccp/ccp-ops.c b/drivers/crypto/ccp/ccp-ops.c
index 8729364261d7..71f2e3c89424 100644
--- a/drivers/crypto/ccp/ccp-ops.c
+++ b/drivers/crypto/ccp/ccp-ops.c
@@ -27,7 +27,6 @@
#include "ccp-dev.h"
-
enum ccp_memtype {
CCP_MEMTYPE_SYSTEM = 0,
CCP_MEMTYPE_KSB,
@@ -515,7 +514,6 @@ static int ccp_init_sg_workarea(struct ccp_sg_workarea *wa, struct device *dev,
if (!wa->dma_count)
return -ENOMEM;
-
return 0;
}
@@ -763,8 +761,9 @@ static void ccp_prepare_data(struct ccp_data *src, struct ccp_data *dst,
sg_dst_len = sg_dma_len(dst->sg_wa.sg) - dst->sg_wa.sg_used;
sg_dst_len = min_t(u64, src->sg_wa.bytes_left, sg_dst_len);
op_len = min(sg_src_len, sg_dst_len);
- } else
+ } else {
op_len = sg_src_len;
+ }
/* The data operation length will be at least block_size in length
* or the smaller of available sg room remaining for the source or
@@ -1131,9 +1130,9 @@ static int ccp_run_aes_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
if (ret)
goto e_ctx;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, aes->dst, aes->src_len,
AES_BLOCK_SIZE, DMA_FROM_DEVICE);
if (ret)
@@ -1304,9 +1303,9 @@ static int ccp_run_xts_aes_cmd(struct ccp_cmd_queue *cmd_q,
if (ret)
goto e_ctx;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, xts->dst, xts->src_len,
unit_size, DMA_FROM_DEVICE);
if (ret)
@@ -1451,8 +1450,9 @@ static int ccp_run_sha_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
goto e_ctx;
}
memcpy(ctx.address, init, CCP_SHA_CTXSIZE);
- } else
+ } else {
ccp_set_dm_area(&ctx, 0, sha->ctx, 0, sha->ctx_len);
+ }
ret = ccp_copy_to_ksb(cmd_q, &ctx, op.jobid, op.ksb_ctx,
CCP_PASSTHRU_BYTESWAP_256BIT);
@@ -1732,9 +1732,9 @@ static int ccp_run_passthru_cmd(struct ccp_cmd_queue *cmd_q,
if (ret)
goto e_mask;
- if (in_place)
+ if (in_place) {
dst = src;
- else {
+ } else {
ret = ccp_init_data(&dst, cmd_q, pt->dst, pt->src_len,
CCP_PASSTHRU_MASKSIZE, DMA_FROM_DEVICE);
if (ret)
@@ -1974,7 +1974,7 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
src.address += CCP_ECC_OPERAND_SIZE;
/* Set the first point Z coordianate to 1 */
- *(src.address) = 0x01;
+ *src.address = 0x01;
src.address += CCP_ECC_OPERAND_SIZE;
if (ecc->function == CCP_ECC_FUNCTION_PADD_384BIT) {
@@ -1989,7 +1989,7 @@ static int ccp_run_ecc_pm_cmd(struct ccp_cmd_queue *cmd_q, struct ccp_cmd *cmd)
src.address += CCP_ECC_OPERAND_SIZE;
/* Set the second point Z coordianate to 1 */
- *(src.address) = 0x01;
+ *src.address = 0x01;
src.address += CCP_ECC_OPERAND_SIZE;
} else {
/* Copy the Domain "a" parameter */
diff --git a/drivers/crypto/ccp/ccp-pci.c b/drivers/crypto/ccp/ccp-pci.c
index 7f89c946adfe..af190d4795a8 100644
--- a/drivers/crypto/ccp/ccp-pci.c
+++ b/drivers/crypto/ccp/ccp-pci.c
@@ -174,11 +174,10 @@ static int ccp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
if (!ccp)
goto e_err;
- ccp_pci = kzalloc(sizeof(*ccp_pci), GFP_KERNEL);
- if (!ccp_pci) {
- ret = -ENOMEM;
- goto e_free1;
- }
+ ccp_pci = devm_kzalloc(dev, sizeof(*ccp_pci), GFP_KERNEL);
+ if (!ccp_pci)
+ goto e_err;
+
ccp->dev_specific = ccp_pci;
ccp->get_irq = ccp_get_irqs;
ccp->free_irq = ccp_free_irqs;
@@ -186,7 +185,7 @@ static int ccp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ret = pci_request_regions(pdev, "ccp");
if (ret) {
dev_err(dev, "pci_request_regions failed (%d)\n", ret);
- goto e_free2;
+ goto e_err;
}
ret = pci_enable_device(pdev);
@@ -204,7 +203,7 @@ static int ccp_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ret = -EIO;
ccp->io_map = pci_iomap(pdev, bar, 0);
- if (ccp->io_map == NULL) {
+ if (!ccp->io_map) {
dev_err(dev, "pci_iomap failed\n");
goto e_device;
}
@@ -239,12 +238,6 @@ e_device:
e_regions:
pci_release_regions(pdev);
-e_free2:
- kfree(ccp_pci);
-
-e_free1:
- kfree(ccp);
-
e_err:
dev_notice(dev, "initialization failed\n");
return ret;
@@ -266,8 +259,6 @@ static void ccp_pci_remove(struct pci_dev *pdev)
pci_release_regions(pdev);
- kfree(ccp);
-
dev_notice(dev, "disabled\n");
}
diff --git a/drivers/crypto/ccp/ccp-platform.c b/drivers/crypto/ccp/ccp-platform.c
index 8c50bad25f7e..b1c20b2b5647 100644
--- a/drivers/crypto/ccp/ccp-platform.c
+++ b/drivers/crypto/ccp/ccp-platform.c
@@ -23,9 +23,15 @@
#include <linux/delay.h>
#include <linux/ccp.h>
#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/acpi.h>
#include "ccp-dev.h"
+struct ccp_platform {
+ int use_acpi;
+ int coherent;
+};
static int ccp_get_irq(struct ccp_device *ccp)
{
@@ -84,10 +90,64 @@ static struct resource *ccp_find_mmio_area(struct ccp_device *ccp)
return NULL;
}
+#ifdef CONFIG_ACPI
+static int ccp_acpi_support(struct ccp_device *ccp)
+{
+ struct ccp_platform *ccp_platform = ccp->dev_specific;
+ struct acpi_device *adev = ACPI_COMPANION(ccp->dev);
+ acpi_handle handle;
+ acpi_status status;
+ unsigned long long data;
+ int cca;
+
+ /* Retrieve the device cache coherency value */
+ handle = adev->handle;
+ do {
+ status = acpi_evaluate_integer(handle, "_CCA", NULL, &data);
+ if (!ACPI_FAILURE(status)) {
+ cca = data;
+ break;
+ }
+ } while (!ACPI_FAILURE(status));
+
+ if (ACPI_FAILURE(status)) {
+ dev_err(ccp->dev, "error obtaining acpi coherency value\n");
+ return -EINVAL;
+ }
+
+ ccp_platform->coherent = !!cca;
+
+ return 0;
+}
+#else /* CONFIG_ACPI */
+static int ccp_acpi_support(struct ccp_device *ccp)
+{
+ return -EINVAL;
+}
+#endif
+
+#ifdef CONFIG_OF
+static int ccp_of_support(struct ccp_device *ccp)
+{
+ struct ccp_platform *ccp_platform = ccp->dev_specific;
+
+ ccp_platform->coherent = of_dma_is_coherent(ccp->dev->of_node);
+
+ return 0;
+}
+#else
+static int ccp_of_support(struct ccp_device *ccp)
+{
+ return -EINVAL;
+}
+#endif
+
static int ccp_platform_probe(struct platform_device *pdev)
{
struct ccp_device *ccp;
+ struct ccp_platform *ccp_platform;
struct device *dev = &pdev->dev;
+ struct acpi_device *adev = ACPI_COMPANION(dev);
struct resource *ior;
int ret;
@@ -96,24 +156,40 @@ static int ccp_platform_probe(struct platform_device *pdev)
if (!ccp)
goto e_err;
- ccp->dev_specific = NULL;
+ ccp_platform = devm_kzalloc(dev, sizeof(*ccp_platform), GFP_KERNEL);
+ if (!ccp_platform)
+ goto e_err;
+
+ ccp->dev_specific = ccp_platform;
ccp->get_irq = ccp_get_irqs;
ccp->free_irq = ccp_free_irqs;
+ ccp_platform->use_acpi = (!adev || acpi_disabled) ? 0 : 1;
+
ior = ccp_find_mmio_area(ccp);
ccp->io_map = devm_ioremap_resource(dev, ior);
if (IS_ERR(ccp->io_map)) {
ret = PTR_ERR(ccp->io_map);
- goto e_free;
+ goto e_err;
}
ccp->io_regs = ccp->io_map;
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
- *(dev->dma_mask) = DMA_BIT_MASK(48);
- dev->coherent_dma_mask = DMA_BIT_MASK(48);
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(48));
+ if (ret) {
+ dev_err(dev, "dma_set_mask_and_coherent failed (%d)\n", ret);
+ goto e_err;
+ }
+
+ if (ccp_platform->use_acpi)
+ ret = ccp_acpi_support(ccp);
+ else
+ ret = ccp_of_support(ccp);
+ if (ret)
+ goto e_err;
- if (of_property_read_bool(dev->of_node, "dma-coherent"))
+ if (ccp_platform->coherent)
ccp->axcache = CACHE_WB_NO_ALLOC;
else
ccp->axcache = CACHE_NONE;
@@ -122,15 +198,12 @@ static int ccp_platform_probe(struct platform_device *pdev)
ret = ccp_init(ccp);
if (ret)
- goto e_free;
+ goto e_err;
dev_notice(dev, "enabled\n");
return 0;
-e_free:
- kfree(ccp);
-
e_err:
dev_notice(dev, "initialization failed\n");
return ret;
@@ -143,8 +216,6 @@ static int ccp_platform_remove(struct platform_device *pdev)
ccp_destroy(ccp);
- kfree(ccp);
-
dev_notice(dev, "disabled\n");
return 0;
@@ -200,15 +271,29 @@ static int ccp_platform_resume(struct platform_device *pdev)
}
#endif
-static const struct of_device_id ccp_platform_ids[] = {
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ccp_acpi_match[] = {
+ { "AMDI0C00", 0 },
+ { },
+};
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id ccp_of_match[] = {
{ .compatible = "amd,ccp-seattle-v1a" },
{ },
};
+#endif
static struct platform_driver ccp_platform_driver = {
.driver = {
.name = "AMD Cryptographic Coprocessor",
- .of_match_table = ccp_platform_ids,
+#ifdef CONFIG_ACPI
+ .acpi_match_table = ccp_acpi_match,
+#endif
+#ifdef CONFIG_OF
+ .of_match_table = ccp_of_match,
+#endif
},
.probe = ccp_platform_probe,
.remove = ccp_platform_remove,
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