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path: root/drivers/crypto/rockchip/rk3288_crypto.c
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Diffstat (limited to 'drivers/crypto/rockchip/rk3288_crypto.c')
-rw-r--r--drivers/crypto/rockchip/rk3288_crypto.c505
1 files changed, 248 insertions, 257 deletions
diff --git a/drivers/crypto/rockchip/rk3288_crypto.c b/drivers/crypto/rockchip/rk3288_crypto.c
index 35d73061d156..9f6ba770a90a 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.c
+++ b/drivers/crypto/rockchip/rk3288_crypto.c
@@ -14,235 +14,162 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/clk.h>
#include <linux/crypto.h>
#include <linux/reset.h>
-static int rk_crypto_enable_clk(struct rk_crypto_info *dev)
-{
- int err;
-
- err = clk_prepare_enable(dev->sclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock sclk\n",
- __func__, __LINE__);
- goto err_return;
- }
- err = clk_prepare_enable(dev->aclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock aclk\n",
- __func__, __LINE__);
- goto err_aclk;
- }
- err = clk_prepare_enable(dev->hclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock hclk\n",
- __func__, __LINE__);
- goto err_hclk;
- }
- err = clk_prepare_enable(dev->dmaclk);
- if (err) {
- dev_err(dev->dev, "[%s:%d], Couldn't enable clock dmaclk\n",
- __func__, __LINE__);
- goto err_dmaclk;
- }
- return err;
-err_dmaclk:
- clk_disable_unprepare(dev->hclk);
-err_hclk:
- clk_disable_unprepare(dev->aclk);
-err_aclk:
- clk_disable_unprepare(dev->sclk);
-err_return:
- return err;
-}
+static struct rockchip_ip rocklist = {
+ .dev_list = LIST_HEAD_INIT(rocklist.dev_list),
+ .lock = __SPIN_LOCK_UNLOCKED(rocklist.lock),
+};
-static void rk_crypto_disable_clk(struct rk_crypto_info *dev)
+struct rk_crypto_info *get_rk_crypto(void)
{
- clk_disable_unprepare(dev->dmaclk);
- clk_disable_unprepare(dev->hclk);
- clk_disable_unprepare(dev->aclk);
- clk_disable_unprepare(dev->sclk);
+ struct rk_crypto_info *first;
+
+ spin_lock(&rocklist.lock);
+ first = list_first_entry_or_null(&rocklist.dev_list,
+ struct rk_crypto_info, list);
+ list_rotate_left(&rocklist.dev_list);
+ spin_unlock(&rocklist.lock);
+ return first;
}
-static int check_alignment(struct scatterlist *sg_src,
- struct scatterlist *sg_dst,
- int align_mask)
-{
- int in, out, align;
+static const struct rk_variant rk3288_variant = {
+ .num_clks = 4,
+ .rkclks = {
+ { "sclk", 150000000},
+ }
+};
- in = IS_ALIGNED((uint32_t)sg_src->offset, 4) &&
- IS_ALIGNED((uint32_t)sg_src->length, align_mask);
- if (!sg_dst)
- return in;
- out = IS_ALIGNED((uint32_t)sg_dst->offset, 4) &&
- IS_ALIGNED((uint32_t)sg_dst->length, align_mask);
- align = in && out;
+static const struct rk_variant rk3328_variant = {
+ .num_clks = 3,
+};
- return (align && (sg_src->length == sg_dst->length));
-}
+static const struct rk_variant rk3399_variant = {
+ .num_clks = 3,
+};
-static int rk_load_data(struct rk_crypto_info *dev,
- struct scatterlist *sg_src,
- struct scatterlist *sg_dst)
+static int rk_crypto_get_clks(struct rk_crypto_info *dev)
{
- unsigned int count;
-
- dev->aligned = dev->aligned ?
- check_alignment(sg_src, sg_dst, dev->align_size) :
- dev->aligned;
- if (dev->aligned) {
- count = min(dev->left_bytes, sg_src->length);
- dev->left_bytes -= count;
-
- if (!dma_map_sg(dev->dev, sg_src, 1, DMA_TO_DEVICE)) {
- dev_err(dev->dev, "[%s:%d] dma_map_sg(src) error\n",
- __func__, __LINE__);
- return -EINVAL;
- }
- dev->addr_in = sg_dma_address(sg_src);
-
- if (sg_dst) {
- if (!dma_map_sg(dev->dev, sg_dst, 1, DMA_FROM_DEVICE)) {
- dev_err(dev->dev,
- "[%s:%d] dma_map_sg(dst) error\n",
- __func__, __LINE__);
- dma_unmap_sg(dev->dev, sg_src, 1,
- DMA_TO_DEVICE);
- return -EINVAL;
- }
- dev->addr_out = sg_dma_address(sg_dst);
- }
- } else {
- count = (dev->left_bytes > PAGE_SIZE) ?
- PAGE_SIZE : dev->left_bytes;
-
- if (!sg_pcopy_to_buffer(dev->first, dev->src_nents,
- dev->addr_vir, count,
- dev->total - dev->left_bytes)) {
- dev_err(dev->dev, "[%s:%d] pcopy err\n",
- __func__, __LINE__);
- return -EINVAL;
- }
- dev->left_bytes -= count;
- sg_init_one(&dev->sg_tmp, dev->addr_vir, count);
- if (!dma_map_sg(dev->dev, &dev->sg_tmp, 1, DMA_TO_DEVICE)) {
- dev_err(dev->dev, "[%s:%d] dma_map_sg(sg_tmp) error\n",
- __func__, __LINE__);
- return -ENOMEM;
- }
- dev->addr_in = sg_dma_address(&dev->sg_tmp);
-
- if (sg_dst) {
- if (!dma_map_sg(dev->dev, &dev->sg_tmp, 1,
- DMA_FROM_DEVICE)) {
- dev_err(dev->dev,
- "[%s:%d] dma_map_sg(sg_tmp) error\n",
- __func__, __LINE__);
- dma_unmap_sg(dev->dev, &dev->sg_tmp, 1,
- DMA_TO_DEVICE);
- return -ENOMEM;
+ int i, j, err;
+ unsigned long cr;
+
+ dev->num_clks = devm_clk_bulk_get_all(dev->dev, &dev->clks);
+ if (dev->num_clks < dev->variant->num_clks) {
+ dev_err(dev->dev, "Missing clocks, got %d instead of %d\n",
+ dev->num_clks, dev->variant->num_clks);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < dev->num_clks; i++) {
+ cr = clk_get_rate(dev->clks[i].clk);
+ for (j = 0; j < ARRAY_SIZE(dev->variant->rkclks); j++) {
+ if (dev->variant->rkclks[j].max == 0)
+ continue;
+ if (strcmp(dev->variant->rkclks[j].name, dev->clks[i].id))
+ continue;
+ if (cr > dev->variant->rkclks[j].max) {
+ err = clk_set_rate(dev->clks[i].clk,
+ dev->variant->rkclks[j].max);
+ if (err)
+ dev_err(dev->dev, "Fail downclocking %s from %lu to %lu\n",
+ dev->variant->rkclks[j].name, cr,
+ dev->variant->rkclks[j].max);
+ else
+ dev_info(dev->dev, "Downclocking %s from %lu to %lu\n",
+ dev->variant->rkclks[j].name, cr,
+ dev->variant->rkclks[j].max);
}
- dev->addr_out = sg_dma_address(&dev->sg_tmp);
}
}
- dev->count = count;
return 0;
}
-static void rk_unload_data(struct rk_crypto_info *dev)
+static int rk_crypto_enable_clk(struct rk_crypto_info *dev)
{
- struct scatterlist *sg_in, *sg_out;
+ int err;
- sg_in = dev->aligned ? dev->sg_src : &dev->sg_tmp;
- dma_unmap_sg(dev->dev, sg_in, 1, DMA_TO_DEVICE);
+ err = clk_bulk_prepare_enable(dev->num_clks, dev->clks);
+ if (err)
+ dev_err(dev->dev, "Could not enable clock clks\n");
- if (dev->sg_dst) {
- sg_out = dev->aligned ? dev->sg_dst : &dev->sg_tmp;
- dma_unmap_sg(dev->dev, sg_out, 1, DMA_FROM_DEVICE);
- }
+ return err;
}
-static irqreturn_t rk_crypto_irq_handle(int irq, void *dev_id)
+static void rk_crypto_disable_clk(struct rk_crypto_info *dev)
{
- struct rk_crypto_info *dev = platform_get_drvdata(dev_id);
- u32 interrupt_status;
+ clk_bulk_disable_unprepare(dev->num_clks, dev->clks);
+}
- spin_lock(&dev->lock);
- interrupt_status = CRYPTO_READ(dev, RK_CRYPTO_INTSTS);
- CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, interrupt_status);
+/*
+ * Power management strategy: The device is suspended until a request
+ * is handled. For avoiding suspend/resume yoyo, the autosuspend is set to 2s.
+ */
+static int rk_crypto_pm_suspend(struct device *dev)
+{
+ struct rk_crypto_info *rkdev = dev_get_drvdata(dev);
- if (interrupt_status & 0x0a) {
- dev_warn(dev->dev, "DMA Error\n");
- dev->err = -EFAULT;
- }
- tasklet_schedule(&dev->done_task);
+ rk_crypto_disable_clk(rkdev);
+ reset_control_assert(rkdev->rst);
- spin_unlock(&dev->lock);
- return IRQ_HANDLED;
+ return 0;
}
-static int rk_crypto_enqueue(struct rk_crypto_info *dev,
- struct crypto_async_request *async_req)
+static int rk_crypto_pm_resume(struct device *dev)
{
- unsigned long flags;
+ struct rk_crypto_info *rkdev = dev_get_drvdata(dev);
int ret;
- spin_lock_irqsave(&dev->lock, flags);
- ret = crypto_enqueue_request(&dev->queue, async_req);
- if (dev->busy) {
- spin_unlock_irqrestore(&dev->lock, flags);
+ ret = rk_crypto_enable_clk(rkdev);
+ if (ret)
return ret;
- }
- dev->busy = true;
- spin_unlock_irqrestore(&dev->lock, flags);
- tasklet_schedule(&dev->queue_task);
- return ret;
-}
+ reset_control_deassert(rkdev->rst);
+ return 0;
-static void rk_crypto_queue_task_cb(unsigned long data)
-{
- struct rk_crypto_info *dev = (struct rk_crypto_info *)data;
- struct crypto_async_request *async_req, *backlog;
- unsigned long flags;
- int err = 0;
+}
- dev->err = 0;
- spin_lock_irqsave(&dev->lock, flags);
- backlog = crypto_get_backlog(&dev->queue);
- async_req = crypto_dequeue_request(&dev->queue);
+static const struct dev_pm_ops rk_crypto_pm_ops = {
+ SET_RUNTIME_PM_OPS(rk_crypto_pm_suspend, rk_crypto_pm_resume, NULL)
+};
- if (!async_req) {
- dev->busy = false;
- spin_unlock_irqrestore(&dev->lock, flags);
- return;
- }
- spin_unlock_irqrestore(&dev->lock, flags);
+static int rk_crypto_pm_init(struct rk_crypto_info *rkdev)
+{
+ int err;
- if (backlog) {
- backlog->complete(backlog, -EINPROGRESS);
- backlog = NULL;
- }
+ pm_runtime_use_autosuspend(rkdev->dev);
+ pm_runtime_set_autosuspend_delay(rkdev->dev, 2000);
- dev->async_req = async_req;
- err = dev->start(dev);
+ err = pm_runtime_set_suspended(rkdev->dev);
if (err)
- dev->complete(dev->async_req, err);
+ return err;
+ pm_runtime_enable(rkdev->dev);
+ return err;
}
-static void rk_crypto_done_task_cb(unsigned long data)
+static void rk_crypto_pm_exit(struct rk_crypto_info *rkdev)
{
- struct rk_crypto_info *dev = (struct rk_crypto_info *)data;
+ pm_runtime_disable(rkdev->dev);
+}
- if (dev->err) {
- dev->complete(dev->async_req, dev->err);
- return;
+static irqreturn_t rk_crypto_irq_handle(int irq, void *dev_id)
+{
+ struct rk_crypto_info *dev = platform_get_drvdata(dev_id);
+ u32 interrupt_status;
+
+ interrupt_status = CRYPTO_READ(dev, RK_CRYPTO_INTSTS);
+ CRYPTO_WRITE(dev, RK_CRYPTO_INTSTS, interrupt_status);
+
+ dev->status = 1;
+ if (interrupt_status & 0x0a) {
+ dev_warn(dev->dev, "DMA Error\n");
+ dev->status = 0;
}
+ complete(&dev->complete);
- dev->err = dev->update(dev);
- if (dev->err)
- dev->complete(dev->async_req, dev->err);
+ return IRQ_HANDLED;
}
static struct rk_crypto_tmp *rk_cipher_algs[] = {
@@ -257,6 +184,62 @@ static struct rk_crypto_tmp *rk_cipher_algs[] = {
&rk_ahash_md5,
};
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+static int rk_crypto_debugfs_show(struct seq_file *seq, void *v)
+{
+ struct rk_crypto_info *dd;
+ unsigned int i;
+
+ spin_lock(&rocklist.lock);
+ list_for_each_entry(dd, &rocklist.dev_list, list) {
+ seq_printf(seq, "%s %s requests: %lu\n",
+ dev_driver_string(dd->dev), dev_name(dd->dev),
+ dd->nreq);
+ }
+ spin_unlock(&rocklist.lock);
+
+ for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
+ if (!rk_cipher_algs[i]->dev)
+ continue;
+ switch (rk_cipher_algs[i]->type) {
+ case CRYPTO_ALG_TYPE_SKCIPHER:
+ seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+ rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name,
+ rk_cipher_algs[i]->alg.skcipher.base.cra_name,
+ rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+ seq_printf(seq, "\tfallback due to length: %lu\n",
+ rk_cipher_algs[i]->stat_fb_len);
+ seq_printf(seq, "\tfallback due to alignment: %lu\n",
+ rk_cipher_algs[i]->stat_fb_align);
+ seq_printf(seq, "\tfallback due to SGs: %lu\n",
+ rk_cipher_algs[i]->stat_fb_sgdiff);
+ break;
+ case CRYPTO_ALG_TYPE_AHASH:
+ seq_printf(seq, "%s %s reqs=%lu fallback=%lu\n",
+ rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name,
+ rk_cipher_algs[i]->alg.hash.halg.base.cra_name,
+ rk_cipher_algs[i]->stat_req, rk_cipher_algs[i]->stat_fb);
+ break;
+ }
+ }
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(rk_crypto_debugfs);
+#endif
+
+static void register_debugfs(struct rk_crypto_info *crypto_info)
+{
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+ /* Ignore error of debugfs */
+ rocklist.dbgfs_dir = debugfs_create_dir("rk3288_crypto", NULL);
+ rocklist.dbgfs_stats = debugfs_create_file("stats", 0444,
+ rocklist.dbgfs_dir,
+ &rocklist,
+ &rk_crypto_debugfs_fops);
+#endif
+}
+
static int rk_crypto_register(struct rk_crypto_info *crypto_info)
{
unsigned int i, k;
@@ -264,12 +247,22 @@ static int rk_crypto_register(struct rk_crypto_info *crypto_info)
for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
rk_cipher_algs[i]->dev = crypto_info;
- if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
- err = crypto_register_skcipher(
- &rk_cipher_algs[i]->alg.skcipher);
- else
- err = crypto_register_ahash(
- &rk_cipher_algs[i]->alg.hash);
+ switch (rk_cipher_algs[i]->type) {
+ case CRYPTO_ALG_TYPE_SKCIPHER:
+ dev_info(crypto_info->dev, "Register %s as %s\n",
+ rk_cipher_algs[i]->alg.skcipher.base.cra_name,
+ rk_cipher_algs[i]->alg.skcipher.base.cra_driver_name);
+ err = crypto_register_skcipher(&rk_cipher_algs[i]->alg.skcipher);
+ break;
+ case CRYPTO_ALG_TYPE_AHASH:
+ dev_info(crypto_info->dev, "Register %s as %s\n",
+ rk_cipher_algs[i]->alg.hash.halg.base.cra_name,
+ rk_cipher_algs[i]->alg.hash.halg.base.cra_driver_name);
+ err = crypto_register_ahash(&rk_cipher_algs[i]->alg.hash);
+ break;
+ default:
+ dev_err(crypto_info->dev, "unknown algorithm\n");
+ }
if (err)
goto err_cipher_algs;
}
@@ -277,7 +270,7 @@ static int rk_crypto_register(struct rk_crypto_info *crypto_info)
err_cipher_algs:
for (k = 0; k < i; k++) {
- if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
+ if (rk_cipher_algs[i]->type == CRYPTO_ALG_TYPE_SKCIPHER)
crypto_unregister_skcipher(&rk_cipher_algs[k]->alg.skcipher);
else
crypto_unregister_ahash(&rk_cipher_algs[i]->alg.hash);
@@ -290,22 +283,23 @@ static void rk_crypto_unregister(void)
unsigned int i;
for (i = 0; i < ARRAY_SIZE(rk_cipher_algs); i++) {
- if (rk_cipher_algs[i]->type == ALG_TYPE_CIPHER)
+ if (rk_cipher_algs[i]->type == CRYPTO_ALG_TYPE_SKCIPHER)
crypto_unregister_skcipher(&rk_cipher_algs[i]->alg.skcipher);
else
crypto_unregister_ahash(&rk_cipher_algs[i]->alg.hash);
}
}
-static void rk_crypto_action(void *data)
-{
- struct rk_crypto_info *crypto_info = data;
-
- reset_control_assert(crypto_info->rst);
-}
-
static const struct of_device_id crypto_of_id_table[] = {
- { .compatible = "rockchip,rk3288-crypto" },
+ { .compatible = "rockchip,rk3288-crypto",
+ .data = &rk3288_variant,
+ },
+ { .compatible = "rockchip,rk3328-crypto",
+ .data = &rk3328_variant,
+ },
+ { .compatible = "rockchip,rk3399-crypto",
+ .data = &rk3399_variant,
+ },
{}
};
MODULE_DEVICE_TABLE(of, crypto_of_id_table);
@@ -313,7 +307,7 @@ MODULE_DEVICE_TABLE(of, crypto_of_id_table);
static int rk_crypto_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct rk_crypto_info *crypto_info;
+ struct rk_crypto_info *crypto_info, *first;
int err = 0;
crypto_info = devm_kzalloc(&pdev->dev,
@@ -323,7 +317,16 @@ static int rk_crypto_probe(struct platform_device *pdev)
goto err_crypto;
}
- crypto_info->rst = devm_reset_control_get(dev, "crypto-rst");
+ crypto_info->dev = &pdev->dev;
+ platform_set_drvdata(pdev, crypto_info);
+
+ crypto_info->variant = of_device_get_match_data(&pdev->dev);
+ if (!crypto_info->variant) {
+ dev_err(&pdev->dev, "Missing variant\n");
+ return -EINVAL;
+ }
+
+ crypto_info->rst = devm_reset_control_array_get_exclusive(dev);
if (IS_ERR(crypto_info->rst)) {
err = PTR_ERR(crypto_info->rst);
goto err_crypto;
@@ -333,46 +336,18 @@ static int rk_crypto_probe(struct platform_device *pdev)
usleep_range(10, 20);
reset_control_deassert(crypto_info->rst);
- err = devm_add_action_or_reset(dev, rk_crypto_action, crypto_info);
- if (err)
- goto err_crypto;
-
- spin_lock_init(&crypto_info->lock);
-
crypto_info->reg = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(crypto_info->reg)) {
err = PTR_ERR(crypto_info->reg);
goto err_crypto;
}
- crypto_info->aclk = devm_clk_get(&pdev->dev, "aclk");
- if (IS_ERR(crypto_info->aclk)) {
- err = PTR_ERR(crypto_info->aclk);
- goto err_crypto;
- }
-
- crypto_info->hclk = devm_clk_get(&pdev->dev, "hclk");
- if (IS_ERR(crypto_info->hclk)) {
- err = PTR_ERR(crypto_info->hclk);
- goto err_crypto;
- }
-
- crypto_info->sclk = devm_clk_get(&pdev->dev, "sclk");
- if (IS_ERR(crypto_info->sclk)) {
- err = PTR_ERR(crypto_info->sclk);
- goto err_crypto;
- }
-
- crypto_info->dmaclk = devm_clk_get(&pdev->dev, "apb_pclk");
- if (IS_ERR(crypto_info->dmaclk)) {
- err = PTR_ERR(crypto_info->dmaclk);
+ err = rk_crypto_get_clks(crypto_info);
+ if (err)
goto err_crypto;
- }
crypto_info->irq = platform_get_irq(pdev, 0);
if (crypto_info->irq < 0) {
- dev_warn(crypto_info->dev,
- "control Interrupt is not available.\n");
err = crypto_info->irq;
goto err_crypto;
}
@@ -382,49 +357,64 @@ static int rk_crypto_probe(struct platform_device *pdev)
"rk-crypto", pdev);
if (err) {
- dev_err(crypto_info->dev, "irq request failed.\n");
+ dev_err(&pdev->dev, "irq request failed.\n");
goto err_crypto;
}
- crypto_info->dev = &pdev->dev;
- platform_set_drvdata(pdev, crypto_info);
-
- tasklet_init(&crypto_info->queue_task,
- rk_crypto_queue_task_cb, (unsigned long)crypto_info);
- tasklet_init(&crypto_info->done_task,
- rk_crypto_done_task_cb, (unsigned long)crypto_info);
- crypto_init_queue(&crypto_info->queue, 50);
+ crypto_info->engine = crypto_engine_alloc_init(&pdev->dev, true);
+ crypto_engine_start(crypto_info->engine);
+ init_completion(&crypto_info->complete);
- crypto_info->enable_clk = rk_crypto_enable_clk;
- crypto_info->disable_clk = rk_crypto_disable_clk;
- crypto_info->load_data = rk_load_data;
- crypto_info->unload_data = rk_unload_data;
- crypto_info->enqueue = rk_crypto_enqueue;
- crypto_info->busy = false;
+ err = rk_crypto_pm_init(crypto_info);
+ if (err)
+ goto err_pm;
+
+ spin_lock(&rocklist.lock);
+ first = list_first_entry_or_null(&rocklist.dev_list,
+ struct rk_crypto_info, list);
+ list_add_tail(&crypto_info->list, &rocklist.dev_list);
+ spin_unlock(&rocklist.lock);
+
+ if (!first) {
+ err = rk_crypto_register(crypto_info);
+ if (err) {
+ dev_err(dev, "Fail to register crypto algorithms");
+ goto err_register_alg;
+ }
- err = rk_crypto_register(crypto_info);
- if (err) {
- dev_err(dev, "err in register alg");
- goto err_register_alg;
+ register_debugfs(crypto_info);
}
- dev_info(dev, "Crypto Accelerator successfully registered\n");
return 0;
err_register_alg:
- tasklet_kill(&crypto_info->queue_task);
- tasklet_kill(&crypto_info->done_task);
+ rk_crypto_pm_exit(crypto_info);
+err_pm:
+ crypto_engine_exit(crypto_info->engine);
err_crypto:
+ dev_err(dev, "Crypto Accelerator not successfully registered\n");
return err;
}
static int rk_crypto_remove(struct platform_device *pdev)
{
struct rk_crypto_info *crypto_tmp = platform_get_drvdata(pdev);
-
- rk_crypto_unregister();
- tasklet_kill(&crypto_tmp->done_task);
- tasklet_kill(&crypto_tmp->queue_task);
+ struct rk_crypto_info *first;
+
+ spin_lock_bh(&rocklist.lock);
+ list_del(&crypto_tmp->list);
+ first = list_first_entry_or_null(&rocklist.dev_list,
+ struct rk_crypto_info, list);
+ spin_unlock_bh(&rocklist.lock);
+
+ if (!first) {
+#ifdef CONFIG_CRYPTO_DEV_ROCKCHIP_DEBUG
+ debugfs_remove_recursive(rocklist.dbgfs_dir);
+#endif
+ rk_crypto_unregister();
+ }
+ rk_crypto_pm_exit(crypto_tmp);
+ crypto_engine_exit(crypto_tmp->engine);
return 0;
}
@@ -433,6 +423,7 @@ static struct platform_driver crypto_driver = {
.remove = rk_crypto_remove,
.driver = {
.name = "rk3288-crypto",
+ .pm = &rk_crypto_pm_ops,
.of_match_table = crypto_of_id_table,
},
};