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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	[thread overview]
Message-ID: <20200830185356.5365-3-digetx@gmail.com> (raw)
In-Reply-To: <20200830185356.5365-1-digetx@gmail.com>

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


  parent reply	other threads:[~2020-08-30 18:55 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-30 18:53 [PATCH v2 0/6] Introduce Embedded Controller driver for Acer A500 Dmitry Osipenko
2020-08-30 18:53 ` [PATCH v2 1/6] dt-bindings: mfd: Add ENE KB930 Embedded Controller binding Dmitry Osipenko
2020-09-03 16:10   ` Rob Herring
2020-09-04 12:07     ` Dmitry Osipenko
2020-09-04 15:40       ` Rob Herring
2020-09-04 15:54         ` Dmitry Osipenko
2020-09-08 17:09           ` Rob Herring
2020-08-30 18:53 ` Dmitry Osipenko [this message]
     [not found]   ` <CGME20200902124731eucas1p13716070977dbef39d09147bb71e050f6@eucas1p1.samsung.com>
2020-09-02 12:47     ` [PATCH v2 2/6] regmap: Use flexible sleep Marek Szyprowski
2020-09-02 12:47       ` Marek Szyprowski
2020-09-02 12:56       ` Dmitry Osipenko
2020-09-02 12:56         ` Dmitry Osipenko
2020-08-30 18:53 ` [PATCH v2 3/6] mfd: Add driver for Embedded Controller found on Acer Iconia Tab A500 Dmitry Osipenko
2020-08-30 18:53 ` [PATCH v2 4/6] power: supply: Add battery gauge driver for " Dmitry Osipenko
2020-08-30 18:53 ` [PATCH v2 5/6] leds: Add " Dmitry Osipenko
2020-08-30 18:53 ` [PATCH v2 6/6] ARM: tegra: acer-a500: Add Embedded Controller Dmitry Osipenko
2020-09-01 14:50 ` [PATCH v2 0/6] Introduce Embedded Controller driver for Acer A500 Mark Brown

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