From 2b32d2f7ce0a54ce74a75f0d939b5ee063a05ec5 Mon Sep 17 00:00:00 2001
From: Dmitry Osipenko <digetx@gmail.com>
Date: Sun, 30 Aug 2020 21:53:52 +0300
Subject: [PATCH] regmap: Use flexible sleep
References: jsc#SLE-16518
Patch-mainline: v5.10-rc1
Git-commit: 2b32d2f7ce0a54ce74a75f0d939b5ee063a05ec5

The multi-reg write function uses udelay(), which is a busy-loop based
delaying function that is not suitable for a long delays. Hence let's
replace the udelay() with fsleep(), which is flexible sleep function that
selects best delay function based on the delay-time.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200830185356.5365-3-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/base/regmap/regmap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index e93700af7e6e..a417cb1a11dc 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2231,7 +2231,7 @@ static int _regmap_range_multi_paged_reg_write(struct regmap *map,
 					return ret;
 
 				if (regs[i].delay_us)
-					udelay(regs[i].delay_us);
+					fsleep(regs[i].delay_us);
 
 				base += n;
 				n = 0;
@@ -2268,7 +2268,7 @@ static int _regmap_multi_reg_write(struct regmap *map,
 				return ret;
 
 			if (regs[i].delay_us)
-				udelay(regs[i].delay_us);
+				fsleep(regs[i].delay_us);
 		}
 		return 0;
 	}
-- 
2.16.4