From: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Date: Mon, 6 Jul 2020 20:01:17 +0000 (+0200)
Subject: rtc: i2c_rtc_emul: catch any write to the "reset" register
X-Git-Tag: v2025.01-rc5-pxa1908~2318^2~7
X-Git-Url: http://git.dujemihanovic.xyz/%22/icons/right.gif/static/git-logo.png?a=commitdiff_plain;h=a3e36525a9b853c09d5f5726eff3641cd0cb5619;p=u-boot.git

rtc: i2c_rtc_emul: catch any write to the "reset" register

It's more natural that any write that happens to touch the reset
register should cause a reset, rather than just a write that starts at
that offset.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
---

diff --git a/drivers/rtc/i2c_rtc_emul.c b/drivers/rtc/i2c_rtc_emul.c
index a010af411b..7f78ff83cb 100644
--- a/drivers/rtc/i2c_rtc_emul.c
+++ b/drivers/rtc/i2c_rtc_emul.c
@@ -197,7 +197,8 @@ static int sandbox_i2c_rtc_xfer(struct udevice *emul, struct i2c_msg *msg,
 
 			/* Write the register */
 			memcpy(plat->reg + offset, ptr, len);
-			if (offset == REG_RESET)
+			/* If the reset register was written to, do reset. */
+			if (offset <= REG_RESET && REG_RESET < offset + len)
 				reset_time(emul);
 		}
 	}