[Intel-gfx] [CI 1/3] *** HAX FOR CI *** Revert "rtc: mc146818: Detect and handle broken RTCs"

[Chris Wilson]

From: Jani Nikula <jani.nikula at intel.com>

This reverts commit 211e5db19d15a721b2953ea54b8f26c2963720eb.
---
 drivers/rtc/rtc-cmos.c         | 8 --------
 drivers/rtc/rtc-mc146818-lib.c | 7 -------
 2 files changed, 15 deletions(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 68a9ac6f2fe1..51e80bc70d42 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -805,14 +805,6 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 
 	spin_lock_irq(&rtc_lock);
 
-	/* Ensure that the RTC is accessible. Bit 0-6 must be 0! */
-	if ((CMOS_READ(RTC_VALID) & 0x7f) != 0) {
-		spin_unlock_irq(&rtc_lock);
-		dev_warn(dev, "not accessible\n");
-		retval = -ENXIO;
-		goto cleanup1;
-	}
-
 	if (!(flags & CMOS_RTC_FLAGS_NOFREQ)) {
 		/* force periodic irq to CMOS reset default of 1024Hz;
 		 *
diff --git a/drivers/rtc/rtc-mc146818-lib.c b/drivers/rtc/rtc-mc146818-lib.c
index f83c13818af3..972a5b9a629d 100644
--- a/drivers/rtc/rtc-mc146818-lib.c
+++ b/drivers/rtc/rtc-mc146818-lib.c
@@ -21,13 +21,6 @@ unsigned int mc146818_get_time(struct rtc_time *time)
 
 again:
 	spin_lock_irqsave(&rtc_lock, flags);
-	/* Ensure that the RTC is accessible. Bit 0-6 must be 0! */
-	if (WARN_ON_ONCE((CMOS_READ(RTC_VALID) & 0x7f) != 0)) {
-		spin_unlock_irqrestore(&rtc_lock, flags);
-		memset(time, 0xff, sizeof(*time));
-		return 0;
-	}
-
 	/*
 	 * Check whether there is an update in progress during which the
 	 * readout is unspecified. The maximum update time is ~2ms. Poll
-- 
2.20.1