linux-kernel - [PATCH v2 net-next 1/2] nfc: s3fwrn5: Remove the delay for NFC sleep

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Message-Id: <20201215065401.3220-2-bongsu.jeon@samsung.com>
Date:   Tue, 15 Dec 2020 15:54:00 +0900
From:   Bongsu Jeon <bongsu.jeon2@...il.com>
To:     krzk@...nel.org
Cc:     linux-nfc@...ts.01.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Bongsu Jeon <bongsu.jeon@...sung.com>
Subject: [PATCH v2 net-next 1/2] nfc: s3fwrn5: Remove the delay for NFC sleep

From: Bongsu Jeon <bongsu.jeon@...sung.com>

Remove the delay for NFC sleep because the delay is only needed to
guarantee that the NFC is awake.

Signed-off-by: Bongsu Jeon <bongsu.jeon@...sung.com>
---
 drivers/nfc/s3fwrn5/phy_common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/nfc/s3fwrn5/phy_common.c b/drivers/nfc/s3fwrn5/phy_common.c
index 497b02b30ae7..81318478d5fd 100644
--- a/drivers/nfc/s3fwrn5/phy_common.c
+++ b/drivers/nfc/s3fwrn5/phy_common.c
@@ -20,7 +20,8 @@ void s3fwrn5_phy_set_wake(void *phy_id, bool wake)
 
 	mutex_lock(&phy->mutex);
 	gpio_set_value(phy->gpio_fw_wake, wake);
-	msleep(S3FWRN5_EN_WAIT_TIME);
+	if (wake)
+		msleep(S3FWRN5_EN_WAIT_TIME);
 	mutex_unlock(&phy->mutex);
 }
 EXPORT_SYMBOL(s3fwrn5_phy_set_wake);
-- 
2.17.1