From: Shawn Guo <shawnguo@kernel.org>
To: Anson Huang <Anson.Huang@nxp.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
s.hauer@pengutronix.de, linux-kernel@vger.kernel.org,
robh+dt@kernel.org, andreas@kemnade.info, Linux-imx@nxp.com,
kernel@pengutronix.de, festevam@gmail.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V2] ARM: dts: imx6: Remove incorrect power supply assignment
Date: Thu, 9 Jan 2020 18:39:30 +0800 [thread overview]
Message-ID: <20200109103929.GP4456@T480> (raw)
In-Reply-To: <1578562682-32548-1-git-send-email-Anson.Huang@nxp.com>
On Thu, Jan 09, 2020 at 05:38:02PM +0800, Anson Huang wrote:
> The vdd3p0 LDO's input should be from external USB VBUS directly, NOT
> PMIC's power supply, the vdd3p0 LDO's target output voltage can be
> controlled by SW, and it requires input voltage to be high enough, with
> incorrect power supply assigned, if the power supply's voltage is lower
> than the LDO target output voltage, it will return fail and skip the LDO
> voltage adjustment, so remove the power supply assignment for vdd3p0 to
> avoid such scenario.
I applied v1 patches with using this version of commit log.
Shawn
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WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo@kernel.org>
To: Anson Huang <Anson.Huang@nxp.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com, andreas@kemnade.info,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Linux-imx@nxp.com
Subject: Re: [PATCH V2] ARM: dts: imx6: Remove incorrect power supply assignment
Date: Thu, 9 Jan 2020 18:39:30 +0800 [thread overview]
Message-ID: <20200109103929.GP4456@T480> (raw)
In-Reply-To: <1578562682-32548-1-git-send-email-Anson.Huang@nxp.com>
On Thu, Jan 09, 2020 at 05:38:02PM +0800, Anson Huang wrote:
> The vdd3p0 LDO's input should be from external USB VBUS directly, NOT
> PMIC's power supply, the vdd3p0 LDO's target output voltage can be
> controlled by SW, and it requires input voltage to be high enough, with
> incorrect power supply assigned, if the power supply's voltage is lower
> than the LDO target output voltage, it will return fail and skip the LDO
> voltage adjustment, so remove the power supply assignment for vdd3p0 to
> avoid such scenario.
I applied v1 patches with using this version of commit log.
Shawn
next prev parent reply other threads:[~2020-01-09 10:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-09 9:38 [PATCH V2] ARM: dts: imx6: Remove incorrect power supply assignment Anson Huang
2020-01-09 9:38 ` Anson Huang
2020-01-09 10:39 ` Shawn Guo [this message]
2020-01-09 10:39 ` Shawn Guo
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