From: Krzysztof Kozlowski <krzk@kernel.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [RFT 6/8] power: regulator: s2mps11: Add enable delay
Date: Sat, 9 Feb 2019 23:54:09 +0100 [thread overview]
Message-ID: <20190209225411.32756-7-krzk@kernel.org> (raw)
In-Reply-To: <20190209225411.32756-1-krzk@kernel.org>
According to datasheet, the output on LDO regulators will start
appearing after 10-15 us.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
drivers/power/regulator/s2mps11_regulator.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/power/regulator/s2mps11_regulator.c b/drivers/power/regulator/s2mps11_regulator.c
index 723d27f67c9a..1f1581852ee2 100644
--- a/drivers/power/regulator/s2mps11_regulator.c
+++ b/drivers/power/regulator/s2mps11_regulator.c
@@ -551,7 +551,14 @@ static int ldo_get_enable(struct udevice *dev)
static int ldo_set_enable(struct udevice *dev, bool enable)
{
- return s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable);
+ int ret;
+
+ ret = s2mps11_ldo_enable(dev, PMIC_OP_SET, &enable);
+
+ /* Wait the "enable delay" for voltage to start to rise */
+ udelay(15);
+
+ return ret;
}
static int ldo_get_mode(struct udevice *dev)
--
2.17.1
next prev parent reply other threads:[~2019-02-09 22:54 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-09 22:54 [U-Boot] [RFT 0/8] exynos: Fix reboot on Odroid HC1 Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 1/8] exynos: Redo detection of revision when all resources are ready Krzysztof Kozlowski
2019-02-11 7:20 ` Lukasz Majewski
2019-02-11 8:02 ` Krzysztof Kozlowski
2019-02-11 8:14 ` Lukasz Majewski
2019-02-11 8:17 ` Krzysztof Kozlowski
2019-02-11 11:06 ` Minkyu Kang
2019-02-09 22:54 ` [U-Boot] [RFT 2/8] exynos: Wait till ADC stabilizes before checking Odroid HC1 revision Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 3/8] adc: exynos-adc: Fix wrong bit operation used to stop the ADC Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 4/8] regulator: Add support for ramp delay Krzysztof Kozlowski
2019-02-10 9:49 ` Simon Glass
2019-02-11 8:14 ` Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 5/8] power: regulator: s2mps11: Fix step for LDO27 and LDO35 Krzysztof Kozlowski
2019-02-09 22:54 ` Krzysztof Kozlowski [this message]
2019-02-11 7:11 ` [U-Boot] [RFT 6/8] power: regulator: s2mps11: Add enable delay Lukasz Majewski
2019-02-11 8:20 ` Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 7/8] arm: dts: exynos: Add supply for ADC block to Odroid XU3 family Krzysztof Kozlowski
2019-02-09 22:54 ` [U-Boot] [RFT 8/8] arm: dts: exynos: Add ramp delay property to LDO regulators " Krzysztof Kozlowski
2019-02-11 7:13 ` Lukasz Majewski
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