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From:   Dmitry Osipenko <digetx@gmail.com>
To:     Lee Jones <lee.jones@linaro.org>, Rob Herring <robh+dt@kernel.org>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Pavel Machek <pavel@ucw.cz>, Dan Murphy <dmurphy@ti.com>,
        Sebastian Reichel <sre@kernel.org>,
        Lubomir Rintel <lkundrak@v3.sk>,
        Mark Brown <broonie@kernel.org>
Cc:     devicetree@vger.kernel.org, linux-tegra@vger.kernel.org,
        linux-leds@vger.kernel.org, linux-pm@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/6] regmap: Use flexible sleep
Date:   Sun, 30 Aug 2020 21:53:52 +0300
Message-Id: <20200830185356.5365-3-digetx@gmail.com>
In-Reply-To: <20200830185356.5365-1-digetx@gmail.com>
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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>
---
 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;
 	}
-- 
2.27.0