linux-kernel - [PATCH v3 5/7] rtc-mc146818-lib: refactor mc146818_does_rtc

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Message-Id: <20211030214636.49602-6-mat.jonczyk@o2.pl>
Date:   Sat, 30 Oct 2021 23:46:33 +0200
From:   Mateusz Jończyk <mat.jonczyk@...pl>
To:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Mateusz Jończyk <mat.jonczyk@...pl>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH v3 5/7] rtc-mc146818-lib: refactor mc146818_does_rtc_work

Refactor mc146818_get_time() to make use of mc146818_do_avoiding_UIP().
It is enough to call mc146818_do_avoiding_UIP() with no callback.

Signed-off-by: Mateusz Jończyk <mat.jonczyk@...pl>
Cc: Alessandro Zummo <a.zummo@...ertech.it>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 drivers/rtc/rtc-mc146818-lib.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
index f3178244db37..09d6c20726c1 100644
--- a/drivers/rtc/rtc-mc146818-lib.c
+++ b/drivers/rtc/rtc-mc146818-lib.c
@@ -83,22 +83,7 @@ EXPORT_SYMBOL_GPL(mc146818_do_avoiding_UIP);
  */
 bool mc146818_does_rtc_work(void)
 {
-	int i;
-	unsigned char val;
-	unsigned long flags;
-
-	for (i = 0; i < 10; i++) {
-		spin_lock_irqsave(&rtc_lock, flags);
-		val = CMOS_READ(RTC_FREQ_SELECT);
-		spin_unlock_irqrestore(&rtc_lock, flags);
-
-		if ((val & RTC_UIP) == 0)
-			return true;
-
-		mdelay(1);
-	}
-
-	return false;
+	return mc146818_do_avoiding_UIP(NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(mc146818_does_rtc_work);
 
-- 
2.25.1