From: Krzysztof Kozlowski <krzk@kernel.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 7/9] power: regulator: s2mps11: Add enable delay
Date: Wed, 13 Feb 2019 17:46:46 +0100 [thread overview]
Message-ID: <20190213164648.26579-8-krzk@kernel.org> (raw)
In-Reply-To: <20190213164648.26579-1-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:[~2019-02-13 16:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 16:46 [U-Boot] [PATCH v2 0/9] arm: exynos: Fix reboot on Odroid HC1 Krzysztof Kozlowski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 1/9] adc: exynos-adc: Fix wrong bit operation used to stop the ADC Krzysztof Kozlowski
2019-02-15 6:54 ` Lukasz Majewski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 2/9] power: regulator: s2mps11: Fix step for LDO27 and LDO35 Krzysztof Kozlowski
2019-02-15 6:55 ` Lukasz Majewski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 3/9] arm: exynos: Detect revision later, when all resources are ready Krzysztof Kozlowski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 4/9] arm: exynos: odroid-xu3: Display info late to have proper type Krzysztof Kozlowski
2019-02-14 7:37 ` Krzysztof Kozlowski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 5/9] arm: exynos: Wait till ADC stabilizes before checking Odroid HC1 revision Krzysztof Kozlowski
2019-02-15 7:15 ` Lukasz Majewski
2019-02-15 10:06 ` Krzysztof Kozlowski
2019-02-16 9:28 ` Krzysztof Kozlowski
2019-02-17 22:31 ` Lukasz Majewski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 6/9] regulator: Add support for ramp delay Krzysztof Kozlowski
2019-02-13 16:46 ` Krzysztof Kozlowski [this message]
2019-02-15 7:03 ` [U-Boot] [PATCH v2 7/9] power: regulator: s2mps11: Add enable delay Lukasz Majewski
2019-02-15 10:11 ` Krzysztof Kozlowski
2019-02-15 10:55 ` Lukasz Majewski
2019-02-15 17:11 ` Simon Glass
2019-02-16 8:37 ` Krzysztof Kozlowski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 8/9] arm: dts: exynos: Add supply for ADC block to Odroid XU3 family Krzysztof Kozlowski
2019-02-15 7:01 ` Lukasz Majewski
2019-02-13 16:46 ` [U-Boot] [PATCH v2 9/9] arm: dts: exynos: Add ramp delay property to LDO regulators " Krzysztof Kozlowski
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