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From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
To: Anand Moon <linux.amoon@gmail.com>
Cc: linux-phy@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org,
Matt Corallo <oc2udbzfd@mattcorallo.com>,
Rob Herring <robh+dt@kernel.org>,
Neil Armstrong <narmstrong@baylibre.com>,
Kevin Hilman <khilman@baylibre.com>,
Jerome Brunet <jbrunet@baylibre.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Vinod Koul <vkoul@kernel.org>,
Emiliano Ingrassia <ingrassia@epigenesys.com>,
Brian Kim <brian.kim@hardkernel.com>
Subject: Re: [PATCHv3 3/6] arm64: dts: amlogic: odroidc2: Fix the chip enable signal for usb power
Date: Sat, 28 Aug 2021 18:00:28 +0200 [thread overview]
Message-ID: <CAFBinCAx33SnuL8n1GF8nz2Q4giNR8tsWxjU32X0wsb6kR_nhw@mail.gmail.com> (raw)
In-Reply-To: <20210817041548.1276-4-linux.amoon@gmail.com>
Hi Anand,
On Tue, Aug 17, 2021 at 6:17 AM Anand Moon <linux.amoon@gmail.com> wrote:
>
> Fix the chip enable signal changing from Active High to Active Low
> to enable input power to USB power. Also updated signal name as per
> the schematics.
according to [0] (page 12) Odroid-C2 uses an "RT9715EGB" for USB OTG power
The datasheet for that power switch [1] mentions on page page 1 that
the "E" stands for "E : 1.1A/Active High"
Can you please elaborate how you have tested this to confirm that
active low is the correct polarity?
Best regards,
Martin
[0] https://dn.odroid.com/S905/Schematic/odroid-c2_rev0.1_20150930.pdf
[1] https://www.richtek.com/assets/product_file/RT9715/DS9715-03.pdf
next prev parent reply other threads:[~2021-08-28 16:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 4:15 [PATCHv3 0/6] Meson-8b and Meson-gxbb Fix some missing code Anand Moon
2021-08-17 4:15 ` [PATCHv3 1/6] ARM: dts: meson8b: odroidc1: Add usb phy power node Anand Moon
2021-08-28 15:53 ` Martin Blumenstingl
2021-08-30 7:45 ` Neil Armstrong
2021-08-30 19:37 ` Martin Blumenstingl
2021-08-31 14:50 ` Neil Armstrong
2021-08-31 20:47 ` Anand Moon
2021-09-20 19:26 ` Martin Blumenstingl
2021-09-25 17:41 ` Anand Moon
2021-08-17 4:15 ` [PATCHv3 2/6] ARM: dts: meson8b: odroidc1: Set usb power source to always on Anand Moon
2021-08-28 15:56 ` Martin Blumenstingl
2021-08-17 4:15 ` [PATCHv3 3/6] arm64: dts: amlogic: odroidc2: Fix the chip enable signal for usb power Anand Moon
2021-08-28 16:00 ` Martin Blumenstingl [this message]
2021-08-17 4:15 ` [PATCHv3 4/6] arm64: dts: amlogic: odroidc2: use vbus-supply for power source for usb nodes Anand Moon
2021-08-28 16:06 ` Martin Blumenstingl
2021-08-17 4:15 ` [PATCHv3 5/6] phy: amlogic: meson8b-usb2: Power off the PHY by putting it into reset mode Anand Moon
2021-08-17 10:30 ` Vinod Koul
2021-08-17 4:15 ` [PATCHv3 6/6] phy: amlogic: meson8b-usb2: don't log an error on -EPROBE_DEFER Anand Moon
2021-08-17 10:31 ` Vinod Koul
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