116 	struct stm32_hash_dev	*hdev;  member
124 	struct stm32_hash_dev	*hdev;  member
195 static inline u32 stm32_hash_read(struct stm32_hash_dev *hdev, u32 offset)  in stm32_hash_read()  argument
197 	return readl_relaxed(hdev->io_base + offset);  in stm32_hash_read()
200 static inline void stm32_hash_write(struct stm32_hash_dev *hdev,  in stm32_hash_write()  argument
203 	writel_relaxed(value, hdev->io_base + offset);  in stm32_hash_write()
206 static inline int stm32_hash_wait_busy(struct stm32_hash_dev *hdev)  in stm32_hash_wait_busy()  argument
210 	return readl_relaxed_poll_timeout(hdev->io_base + HASH_SR, status,  in stm32_hash_wait_busy()
214 static void stm32_hash_set_nblw(struct stm32_hash_dev *hdev, int length)  in stm32_hash_set_nblw()  argument
218 	reg = stm32_hash_read(hdev, HASH_STR);  in stm32_hash_set_nblw()
221 	stm32_hash_write(hdev, HASH_STR, reg);  in stm32_hash_set_nblw()
224 static int stm32_hash_write_key(struct stm32_hash_dev *hdev)  in stm32_hash_write_key()  argument
226 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(hdev->req);  in stm32_hash_write_key()
233 		stm32_hash_set_nblw(hdev, keylen);  in stm32_hash_write_key()
236 			stm32_hash_write(hdev, HASH_DIN, *(u32 *)key);  in stm32_hash_write_key()
241 		reg = stm32_hash_read(hdev, HASH_STR);  in stm32_hash_write_key()
243 		stm32_hash_write(hdev, HASH_STR, reg);  in stm32_hash_write_key()
251 static void stm32_hash_write_ctrl(struct stm32_hash_dev *hdev)  in stm32_hash_write_ctrl()  argument
253 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);  in stm32_hash_write_ctrl()
254 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(hdev->req);  in stm32_hash_write_ctrl()
259 	if (!(hdev->flags & HASH_FLAGS_INIT)) {  in stm32_hash_write_ctrl()
280 			hdev->flags |= HASH_FLAGS_HMAC;  in stm32_hash_write_ctrl()
286 		stm32_hash_write(hdev, HASH_IMR, HASH_DCIE);  in stm32_hash_write_ctrl()
288 		stm32_hash_write(hdev, HASH_CR, reg);  in stm32_hash_write_ctrl()
290 		hdev->flags |= HASH_FLAGS_INIT;  in stm32_hash_write_ctrl()
292 		dev_dbg(hdev->dev, "Write Control %x\n", reg);  in stm32_hash_write_ctrl()
330 static int stm32_hash_xmit_cpu(struct stm32_hash_dev *hdev,  in stm32_hash_xmit_cpu()  argument
338 		hdev->flags |= HASH_FLAGS_FINAL;  in stm32_hash_xmit_cpu()
342 	dev_dbg(hdev->dev, "%s: length: %zd, final: %x len32 %i\n",  in stm32_hash_xmit_cpu()
345 	hdev->flags |= HASH_FLAGS_CPU;  in stm32_hash_xmit_cpu()
347 	stm32_hash_write_ctrl(hdev);  in stm32_hash_xmit_cpu()
349 	if (stm32_hash_wait_busy(hdev))  in stm32_hash_xmit_cpu()
352 	if ((hdev->flags & HASH_FLAGS_HMAC) &&  in stm32_hash_xmit_cpu()
353 	    (!(hdev->flags & HASH_FLAGS_HMAC_KEY))) {  in stm32_hash_xmit_cpu()
354 		hdev->flags |= HASH_FLAGS_HMAC_KEY;  in stm32_hash_xmit_cpu()
355 		stm32_hash_write_key(hdev);  in stm32_hash_xmit_cpu()
356 		if (stm32_hash_wait_busy(hdev))  in stm32_hash_xmit_cpu()
361 		stm32_hash_write(hdev, HASH_DIN, buffer[count]);  in stm32_hash_xmit_cpu()
364 		stm32_hash_set_nblw(hdev, length);  in stm32_hash_xmit_cpu()
365 		reg = stm32_hash_read(hdev, HASH_STR);  in stm32_hash_xmit_cpu()
367 		stm32_hash_write(hdev, HASH_STR, reg);  in stm32_hash_xmit_cpu()
368 		if (hdev->flags & HASH_FLAGS_HMAC) {  in stm32_hash_xmit_cpu()
369 			if (stm32_hash_wait_busy(hdev))  in stm32_hash_xmit_cpu()
371 			stm32_hash_write_key(hdev);  in stm32_hash_xmit_cpu()
379 static int stm32_hash_update_cpu(struct stm32_hash_dev *hdev)  in stm32_hash_update_cpu()  argument
381 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);  in stm32_hash_update_cpu()
384 	dev_dbg(hdev->dev, "%s flags %lx\n", __func__, rctx->flags);  in stm32_hash_update_cpu()
393 		err = stm32_hash_xmit_cpu(hdev, rctx->buffer, bufcnt, 0);  in stm32_hash_update_cpu()
401 		err = stm32_hash_xmit_cpu(hdev, rctx->buffer, bufcnt,  in stm32_hash_update_cpu()
408 static int stm32_hash_xmit_dma(struct stm32_hash_dev *hdev,  in stm32_hash_xmit_dma()  argument
416 	in_desc = dmaengine_prep_slave_sg(hdev->dma_lch, sg, 1,  in stm32_hash_xmit_dma()
420 		dev_err(hdev->dev, "dmaengine_prep_slave error\n");  in stm32_hash_xmit_dma()
424 	reinit_completion(&hdev->dma_completion);  in stm32_hash_xmit_dma()
426 	in_desc->callback_param = hdev;  in stm32_hash_xmit_dma()
428 	hdev->flags |= HASH_FLAGS_FINAL;  in stm32_hash_xmit_dma()
429 	hdev->flags |= HASH_FLAGS_DMA_ACTIVE;  in stm32_hash_xmit_dma()
431 	reg = stm32_hash_read(hdev, HASH_CR);  in stm32_hash_xmit_dma()
440 	stm32_hash_write(hdev, HASH_CR, reg);  in stm32_hash_xmit_dma()
442 	stm32_hash_set_nblw(hdev, length);  in stm32_hash_xmit_dma()
449 	dma_async_issue_pending(hdev->dma_lch);  in stm32_hash_xmit_dma()
451 	if (!wait_for_completion_timeout(&hdev->dma_completion,  in stm32_hash_xmit_dma()
455 	if (dma_async_is_tx_complete(hdev->dma_lch, cookie,  in stm32_hash_xmit_dma()
460 		dev_err(hdev->dev, "DMA Error %i\n", err);  in stm32_hash_xmit_dma()
461 		dmaengine_terminate_all(hdev->dma_lch);  in stm32_hash_xmit_dma()
470 	struct stm32_hash_dev *hdev = param;  in stm32_hash_dma_callback()  local
472 	complete(&hdev->dma_completion);  in stm32_hash_dma_callback()
474 	hdev->flags |= HASH_FLAGS_DMA_READY;  in stm32_hash_dma_callback()
477 static int stm32_hash_hmac_dma_send(struct stm32_hash_dev *hdev)  in stm32_hash_hmac_dma_send()  argument
479 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);  in stm32_hash_hmac_dma_send()
480 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(hdev->req);  in stm32_hash_hmac_dma_send()
484 	if (ctx->keylen < HASH_DMA_THRESHOLD || (hdev->dma_mode == 1)) {  in stm32_hash_hmac_dma_send()
485 		err = stm32_hash_write_key(hdev);  in stm32_hash_hmac_dma_send()
486 		if (stm32_hash_wait_busy(hdev))  in stm32_hash_hmac_dma_send()
489 		if (!(hdev->flags & HASH_FLAGS_HMAC_KEY))  in stm32_hash_hmac_dma_send()
493 		rctx->dma_ct = dma_map_sg(hdev->dev, &rctx->sg_key, 1,  in stm32_hash_hmac_dma_send()
496 			dev_err(hdev->dev, "dma_map_sg error\n");  in stm32_hash_hmac_dma_send()
500 		err = stm32_hash_xmit_dma(hdev, &rctx->sg_key, ctx->keylen, 0);  in stm32_hash_hmac_dma_send()
502 		dma_unmap_sg(hdev->dev, &rctx->sg_key, 1, DMA_TO_DEVICE);  in stm32_hash_hmac_dma_send()
508 static int stm32_hash_dma_init(struct stm32_hash_dev *hdev)  in stm32_hash_dma_init()  argument
517 	dma_conf.dst_addr = hdev->phys_base + HASH_DIN;  in stm32_hash_dma_init()
519 	dma_conf.src_maxburst = hdev->dma_maxburst;  in stm32_hash_dma_init()
520 	dma_conf.dst_maxburst = hdev->dma_maxburst;  in stm32_hash_dma_init()
523 	chan = dma_request_chan(hdev->dev, "in");  in stm32_hash_dma_init()
527 	hdev->dma_lch = chan;  in stm32_hash_dma_init()
529 	err = dmaengine_slave_config(hdev->dma_lch, &dma_conf);  in stm32_hash_dma_init()
531 		dma_release_channel(hdev->dma_lch);  in stm32_hash_dma_init()
532 		hdev->dma_lch = NULL;  in stm32_hash_dma_init()
533 		dev_err(hdev->dev, "Couldn't configure DMA slave.\n");  in stm32_hash_dma_init()
537 	init_completion(&hdev->dma_completion);  in stm32_hash_dma_init()
542 static int stm32_hash_dma_send(struct stm32_hash_dev *hdev)  in stm32_hash_dma_send()  argument
544 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);  in stm32_hash_dma_send()
550 	rctx->sg = hdev->req->src;  in stm32_hash_dma_send()
551 	rctx->total = hdev->req->nbytes;  in stm32_hash_dma_send()
558 	stm32_hash_write_ctrl(hdev);  in stm32_hash_dma_send()
560 	if (hdev->flags & HASH_FLAGS_HMAC) {  in stm32_hash_dma_send()
561 		err = stm32_hash_hmac_dma_send(hdev);  in stm32_hash_dma_send()
571 			if (hdev->dma_mode == 1) {  in stm32_hash_dma_send()
589 		rctx->dma_ct = dma_map_sg(hdev->dev, sg, 1,  in stm32_hash_dma_send()
592 			dev_err(hdev->dev, "dma_map_sg error\n");  in stm32_hash_dma_send()
596 		err = stm32_hash_xmit_dma(hdev, sg, len,  in stm32_hash_dma_send()
599 		dma_unmap_sg(hdev->dev, sg, 1, DMA_TO_DEVICE);  in stm32_hash_dma_send()
605 	if (hdev->dma_mode == 1) {  in stm32_hash_dma_send()
606 		if (stm32_hash_wait_busy(hdev))  in stm32_hash_dma_send()
608 		reg = stm32_hash_read(hdev, HASH_CR);  in stm32_hash_dma_send()
611 		stm32_hash_write(hdev, HASH_CR, reg);  in stm32_hash_dma_send()
616 			writesl(hdev->io_base + HASH_DIN, buffer,  in stm32_hash_dma_send()
619 		stm32_hash_set_nblw(hdev, ncp);  in stm32_hash_dma_send()
620 		reg = stm32_hash_read(hdev, HASH_STR);  in stm32_hash_dma_send()
622 		stm32_hash_write(hdev, HASH_STR, reg);  in stm32_hash_dma_send()
626 	if (hdev->flags & HASH_FLAGS_HMAC) {  in stm32_hash_dma_send()
627 		if (stm32_hash_wait_busy(hdev))  in stm32_hash_dma_send()
629 		err = stm32_hash_hmac_dma_send(hdev);  in stm32_hash_dma_send()
637 	struct stm32_hash_dev *hdev = NULL, *tmp;  in stm32_hash_find_dev()  local
640 	if (!ctx->hdev) {  in stm32_hash_find_dev()
642 			hdev = tmp;  in stm32_hash_find_dev()
645 		ctx->hdev = hdev;  in stm32_hash_find_dev()
647 		hdev = ctx->hdev;  in stm32_hash_find_dev()
652 	return hdev;  in stm32_hash_find_dev()
659 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_dma_aligned_data()  local
666 		if (hdev->dma_mode == 1)  in stm32_hash_dma_aligned_data()
686 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_init()  local
688 	rctx->hdev = hdev;  in stm32_hash_init()
721 	dev_dbg(hdev->dev, "%s Flags %lx\n", __func__, rctx->flags);  in stm32_hash_init()
726 static int stm32_hash_update_req(struct stm32_hash_dev *hdev)  in stm32_hash_update_req()  argument
728 	return stm32_hash_update_cpu(hdev);  in stm32_hash_update_req()
731 static int stm32_hash_final_req(struct stm32_hash_dev *hdev)  in stm32_hash_final_req()  argument
733 	struct ahash_request *req = hdev->req;  in stm32_hash_final_req()
741 		err = stm32_hash_dma_send(hdev);  in stm32_hash_final_req()
743 		err = stm32_hash_xmit_cpu(hdev, rctx->buffer, buflen, 1);  in stm32_hash_final_req()
773 		hash[i] = cpu_to_be32(stm32_hash_read(rctx->hdev,  in stm32_hash_copy_hash()
792 	struct stm32_hash_dev *hdev = rctx->hdev;  in stm32_hash_finish_req()  local
794 	if (!err && (HASH_FLAGS_FINAL & hdev->flags)) {  in stm32_hash_finish_req()
797 		hdev->flags &= ~(HASH_FLAGS_FINAL | HASH_FLAGS_CPU |  in stm32_hash_finish_req()
806 	pm_runtime_mark_last_busy(hdev->dev);  in stm32_hash_finish_req()
807 	pm_runtime_put_autosuspend(hdev->dev);  in stm32_hash_finish_req()
809 	crypto_finalize_hash_request(hdev->engine, req, err);  in stm32_hash_finish_req()
812 static int stm32_hash_hw_init(struct stm32_hash_dev *hdev,  in stm32_hash_hw_init()  argument
815 	pm_runtime_get_sync(hdev->dev);  in stm32_hash_hw_init()
817 	if (!(HASH_FLAGS_INIT & hdev->flags)) {  in stm32_hash_hw_init()
818 		stm32_hash_write(hdev, HASH_CR, HASH_CR_INIT);  in stm32_hash_hw_init()
819 		stm32_hash_write(hdev, HASH_STR, 0);  in stm32_hash_hw_init()
820 		stm32_hash_write(hdev, HASH_DIN, 0);  in stm32_hash_hw_init()
821 		stm32_hash_write(hdev, HASH_IMR, 0);  in stm32_hash_hw_init()
822 		hdev->err = 0;  in stm32_hash_hw_init()
831 static int stm32_hash_handle_queue(struct stm32_hash_dev *hdev,  in stm32_hash_handle_queue()  argument
834 	return crypto_transfer_hash_request_to_engine(hdev->engine, req);  in stm32_hash_handle_queue()
842 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_prepare_req()  local
845 	if (!hdev)  in stm32_hash_prepare_req()
848 	hdev->req = req;  in stm32_hash_prepare_req()
852 	dev_dbg(hdev->dev, "processing new req, op: %lu, nbytes %d\n",  in stm32_hash_prepare_req()
855 	return stm32_hash_hw_init(hdev, rctx);  in stm32_hash_prepare_req()
863 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_one_request()  local
867 	if (!hdev)  in stm32_hash_one_request()
870 	hdev->req = req;  in stm32_hash_one_request()
875 		err = stm32_hash_update_req(hdev);  in stm32_hash_one_request()
877 		err = stm32_hash_final_req(hdev);  in stm32_hash_one_request()
890 	struct stm32_hash_dev *hdev = ctx->hdev;  in stm32_hash_enqueue()  local
894 	return stm32_hash_handle_queue(hdev, req);  in stm32_hash_enqueue()
929 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_finup()  local
934 	if (hdev->dma_lch && stm32_hash_dma_aligned_data(req))  in stm32_hash_finup()
960 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_export()  local
964 	pm_runtime_get_sync(hdev->dev);  in stm32_hash_export()
966 	while ((stm32_hash_read(hdev, HASH_SR) & HASH_SR_BUSY))  in stm32_hash_export()
975 	*preg++ = stm32_hash_read(hdev, HASH_IMR);  in stm32_hash_export()
976 	*preg++ = stm32_hash_read(hdev, HASH_STR);  in stm32_hash_export()
977 	*preg++ = stm32_hash_read(hdev, HASH_CR);  in stm32_hash_export()
979 		*preg++ = stm32_hash_read(hdev, HASH_CSR(i));  in stm32_hash_export()
981 	pm_runtime_mark_last_busy(hdev->dev);  in stm32_hash_export()
982 	pm_runtime_put_autosuspend(hdev->dev);  in stm32_hash_export()
993 	struct stm32_hash_dev *hdev = stm32_hash_find_dev(ctx);  in stm32_hash_import()  local
1002 	pm_runtime_get_sync(hdev->dev);  in stm32_hash_import()
1004 	stm32_hash_write(hdev, HASH_IMR, *preg++);  in stm32_hash_import()
1005 	stm32_hash_write(hdev, HASH_STR, *preg++);  in stm32_hash_import()
1006 	stm32_hash_write(hdev, HASH_CR, *preg);  in stm32_hash_import()
1008 	stm32_hash_write(hdev, HASH_CR, reg);  in stm32_hash_import()
1011 		stm32_hash_write(hdev, HASH_CSR(i), *preg++);  in stm32_hash_import()
1013 	pm_runtime_mark_last_busy(hdev->dev);  in stm32_hash_import()
1014 	pm_runtime_put_autosuspend(hdev->dev);  in stm32_hash_import()
1082 	struct stm32_hash_dev *hdev = dev_id;  in stm32_hash_irq_thread()  local
1084 	if (HASH_FLAGS_CPU & hdev->flags) {  in stm32_hash_irq_thread()
1085 		if (HASH_FLAGS_OUTPUT_READY & hdev->flags) {  in stm32_hash_irq_thread()
1086 			hdev->flags &= ~HASH_FLAGS_OUTPUT_READY;  in stm32_hash_irq_thread()
1089 	} else if (HASH_FLAGS_DMA_READY & hdev->flags) {  in stm32_hash_irq_thread()
1090 		if (HASH_FLAGS_DMA_ACTIVE & hdev->flags) {  in stm32_hash_irq_thread()
1091 			hdev->flags &= ~HASH_FLAGS_DMA_ACTIVE;  in stm32_hash_irq_thread()
1100 	stm32_hash_finish_req(hdev->req, 0);  in stm32_hash_irq_thread()
1107 	struct stm32_hash_dev *hdev = dev_id;  in stm32_hash_irq_handler()  local
1110 	reg = stm32_hash_read(hdev, HASH_SR);  in stm32_hash_irq_handler()
1113 		stm32_hash_write(hdev, HASH_SR, reg);  in stm32_hash_irq_handler()
1114 		hdev->flags |= HASH_FLAGS_OUTPUT_READY;  in stm32_hash_irq_handler()
1116 		stm32_hash_write(hdev, HASH_IMR, 0);  in stm32_hash_irq_handler()
1333 static int stm32_hash_register_algs(struct stm32_hash_dev *hdev)  in stm32_hash_register_algs()  argument
1338 	for (i = 0; i < hdev->pdata->algs_info_size; i++) {  in stm32_hash_register_algs()
1339 		for (j = 0; j < hdev->pdata->algs_info[i].size; j++) {  in stm32_hash_register_algs()
1341 				&hdev->pdata->algs_info[i].algs_list[j]);  in stm32_hash_register_algs()
1349 	dev_err(hdev->dev, "Algo %d : %d failed\n", i, j);  in stm32_hash_register_algs()
1353 				&hdev->pdata->algs_info[i].algs_list[j]);  in stm32_hash_register_algs()
1359 static int stm32_hash_unregister_algs(struct stm32_hash_dev *hdev)  in stm32_hash_unregister_algs()  argument
1363 	for (i = 0; i < hdev->pdata->algs_info_size; i++) {  in stm32_hash_unregister_algs()
1364 		for (j = 0; j < hdev->pdata->algs_info[i].size; j++)  in stm32_hash_unregister_algs()
1366 				&hdev->pdata->algs_info[i].algs_list[j]);  in stm32_hash_unregister_algs()
1414 static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev,  in stm32_hash_get_of_match()  argument
1417 	hdev->pdata = of_device_get_match_data(dev);  in stm32_hash_get_of_match()
1418 	if (!hdev->pdata) {  in stm32_hash_get_of_match()
1424 				 &hdev->dma_maxburst)) {  in stm32_hash_get_of_match()
1426 		hdev->dma_maxburst = 0;  in stm32_hash_get_of_match()
1434 	struct stm32_hash_dev *hdev;  in stm32_hash_probe()  local
1439 	hdev = devm_kzalloc(dev, sizeof(*hdev), GFP_KERNEL);  in stm32_hash_probe()
1440 	if (!hdev)  in stm32_hash_probe()
1444 	hdev->io_base = devm_ioremap_resource(dev, res);  in stm32_hash_probe()
1445 	if (IS_ERR(hdev->io_base))  in stm32_hash_probe()
1446 		return PTR_ERR(hdev->io_base);  in stm32_hash_probe()
1448 	hdev->phys_base = res->start;  in stm32_hash_probe()
1450 	ret = stm32_hash_get_of_match(hdev, dev);  in stm32_hash_probe()
1460 					dev_name(dev), hdev);  in stm32_hash_probe()
1466 	hdev->clk = devm_clk_get(&pdev->dev, NULL);  in stm32_hash_probe()
1467 	if (IS_ERR(hdev->clk))  in stm32_hash_probe()
1468 		return dev_err_probe(dev, PTR_ERR(hdev->clk),  in stm32_hash_probe()
1471 	ret = clk_prepare_enable(hdev->clk);  in stm32_hash_probe()
1484 	hdev->rst = devm_reset_control_get(&pdev->dev, NULL);  in stm32_hash_probe()
1485 	if (IS_ERR(hdev->rst)) {  in stm32_hash_probe()
1486 		if (PTR_ERR(hdev->rst) == -EPROBE_DEFER) {  in stm32_hash_probe()
1491 		reset_control_assert(hdev->rst);  in stm32_hash_probe()
1493 		reset_control_deassert(hdev->rst);  in stm32_hash_probe()
1496 	hdev->dev = dev;  in stm32_hash_probe()
1498 	platform_set_drvdata(pdev, hdev);  in stm32_hash_probe()
1500 	ret = stm32_hash_dma_init(hdev);  in stm32_hash_probe()
1512 	list_add_tail(&hdev->list, &stm32_hash.dev_list);  in stm32_hash_probe()
1516 	hdev->engine = crypto_engine_alloc_init(dev, 1);  in stm32_hash_probe()
1517 	if (!hdev->engine) {  in stm32_hash_probe()
1522 	ret = crypto_engine_start(hdev->engine);  in stm32_hash_probe()
1526 	hdev->dma_mode = stm32_hash_read(hdev, HASH_HWCFGR);  in stm32_hash_probe()
1529 	ret = stm32_hash_register_algs(hdev);  in stm32_hash_probe()
1534 		 stm32_hash_read(hdev, HASH_VER), hdev->dma_mode);  in stm32_hash_probe()
1542 	crypto_engine_exit(hdev->engine);  in stm32_hash_probe()
1545 	list_del(&hdev->list);  in stm32_hash_probe()
1548 	if (hdev->dma_lch)  in stm32_hash_probe()
1549 		dma_release_channel(hdev->dma_lch);  in stm32_hash_probe()
1554 	clk_disable_unprepare(hdev->clk);  in stm32_hash_probe()
1561 	struct stm32_hash_dev *hdev;  in stm32_hash_remove()  local
1564 	hdev = platform_get_drvdata(pdev);  in stm32_hash_remove()
1565 	if (!hdev)  in stm32_hash_remove()
1568 	ret = pm_runtime_resume_and_get(hdev->dev);  in stm32_hash_remove()
1572 	stm32_hash_unregister_algs(hdev);  in stm32_hash_remove()
1574 	crypto_engine_exit(hdev->engine);  in stm32_hash_remove()
1577 	list_del(&hdev->list);  in stm32_hash_remove()
1580 	if (hdev->dma_lch)  in stm32_hash_remove()
1581 		dma_release_channel(hdev->dma_lch);  in stm32_hash_remove()
1583 	pm_runtime_disable(hdev->dev);  in stm32_hash_remove()
1584 	pm_runtime_put_noidle(hdev->dev);  in stm32_hash_remove()
1586 	clk_disable_unprepare(hdev->clk);  in stm32_hash_remove()
1594 	struct stm32_hash_dev *hdev = dev_get_drvdata(dev);  in stm32_hash_runtime_suspend()  local
1596 	clk_disable_unprepare(hdev->clk);  in stm32_hash_runtime_suspend()
1603 	struct stm32_hash_dev *hdev = dev_get_drvdata(dev);  in stm32_hash_runtime_resume()  local
1606 	ret = clk_prepare_enable(hdev->clk);  in stm32_hash_runtime_resume()
1608 		dev_err(hdev->dev, "Failed to prepare_enable clock\n");  in stm32_hash_runtime_resume()