linux-kernel - [PATCH 2/6] crypto: hisilicon/zip - remove unnecessary validation for high-performance mode configurations

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Message-ID: <20250816102834.828655-3-huangchenghai2@huawei.com>
Date: Sat, 16 Aug 2025 18:28:30 +0800
From: Chenghai Huang <huangchenghai2@...wei.com>
To: <herbert@...dor.apana.org.au>, <davem@...emloft.net>
CC: <linux-kernel@...r.kernel.org>, <linux-crypto@...r.kernel.org>,
	<liulongfang@...wei.com>, <shenyang39@...wei.com>, <qianweili@...wei.com>,
	<linwenkai6@...ilicon.com>, <wangzhou1@...ilicon.com>,
	<huangchenghai2@...wei.com>
Subject: [PATCH 2/6] crypto: hisilicon/zip - remove unnecessary validation for high-performance mode configurations

When configuring the high-performance mode register, there is no
need to verify whether the register has been successfully
enabled, as there is no possibility of a write failure for this
register.

Fixes: a9864bae1806 ("crypto: hisilicon/zip - add zip comp high perf mode configuration")
Signed-off-by: Chenghai Huang <huangchenghai2@...wei.com>
---
 drivers/crypto/hisilicon/zip/zip_main.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/crypto/hisilicon/zip/zip_main.c b/drivers/crypto/hisilicon/zip/zip_main.c
index 96687c78a8dc..744f5a0197c3 100644
--- a/drivers/crypto/hisilicon/zip/zip_main.c
+++ b/drivers/crypto/hisilicon/zip/zip_main.c
@@ -448,10 +448,9 @@ bool hisi_zip_alg_support(struct hisi_qm *qm, u32 alg)
 	return false;
 }
 
-static int hisi_zip_set_high_perf(struct hisi_qm *qm)
+static void hisi_zip_set_high_perf(struct hisi_qm *qm)
 {
 	u32 val;
-	int ret;
 
 	val = readl_relaxed(qm->io_base + HZIP_HIGH_PERF_OFFSET);
 	if (perf_mode == HZIP_HIGH_COMP_PERF)
@@ -461,13 +460,6 @@ static int hisi_zip_set_high_perf(struct hisi_qm *qm)
 
 	/* Set perf mode */
 	writel(val, qm->io_base + HZIP_HIGH_PERF_OFFSET);
-	ret = readl_relaxed_poll_timeout(qm->io_base + HZIP_HIGH_PERF_OFFSET,
-					 val, val == perf_mode, HZIP_DELAY_1_US,
-					 HZIP_POLL_TIMEOUT_US);
-	if (ret)
-		pci_err(qm->pdev, "failed to set perf mode\n");
-
-	return ret;
 }
 
 static void hisi_zip_open_sva_prefetch(struct hisi_qm *qm)
@@ -581,6 +573,8 @@ static int hisi_zip_set_user_domain_and_cache(struct hisi_qm *qm)
 	       CQC_CACHE_WB_ENABLE | FIELD_PREP(SQC_CACHE_WB_THRD, 1) |
 	       FIELD_PREP(CQC_CACHE_WB_THRD, 1), base + QM_CACHE_CTL);
 
+	hisi_zip_set_high_perf(qm);
+
 	hisi_zip_enable_clock_gate(qm);
 
 	return hisi_dae_set_user_domain(qm);
@@ -1252,10 +1246,6 @@ static int hisi_zip_pf_probe_init(struct hisi_zip *hisi_zip)
 	if (ret)
 		return ret;
 
-	ret = hisi_zip_set_high_perf(qm);
-	if (ret)
-		return ret;
-
 	hisi_qm_dev_err_init(qm);
 	hisi_zip_debug_regs_clear(qm);
 
-- 
2.33.0