From: Matthias Kaehlcke <mka-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
To: Peter Chen <peter.chen-3arQi8VN3Tc@public.gmane.org>
Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
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linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v5 2/6] power: add power sequence library
Date: Mon, 8 Aug 2016 17:25:01 -0700 [thread overview]
Message-ID: <20160809002501.GA125064@google.com> (raw)
In-Reply-To: <1470646331-23227-3-git-send-email-peter.chen-3arQi8VN3Tc@public.gmane.org>
El Mon, Aug 08, 2016 at 04:52:07PM +0800 Peter Chen ha dit:
> We have an well-known problem that the device needs to do some power
> sequence before it can be recognized by related host, the typical
> example like hard-wired mmc devices and usb devices.
>
> This power sequence is hard to be described at device tree and handled by
> related host driver, so we have created a common power sequence
> library to cover this requirement. The core code has supplied
> some common helpers for host driver, and individual power sequence
> libraries handle kinds of power sequence for devices.
>
> pwrseq_generic is intended for general purpose of power sequence, which
> handles gpios and clocks currently, and can cover regulator and pinctrl
> in future. The host driver calls pwrseq_alloc_generic to create
> an generic pwrseq instance.
>
> Signed-off-by: Peter Chen <peter.chen-3arQi8VN3Tc@public.gmane.org>
> Tested-by Joshua Clayton <stillcompiling-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Reviewed-by: Matthias Kaehlcke <mka-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Tested-by: Matthias Kaehlcke <mka-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
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WARNING: multiple messages have this Message-ID (diff)
From: mka@chromium.org (Matthias Kaehlcke)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 2/6] power: add power sequence library
Date: Mon, 8 Aug 2016 17:25:01 -0700 [thread overview]
Message-ID: <20160809002501.GA125064@google.com> (raw)
In-Reply-To: <1470646331-23227-3-git-send-email-peter.chen@nxp.com>
El Mon, Aug 08, 2016 at 04:52:07PM +0800 Peter Chen ha dit:
> We have an well-known problem that the device needs to do some power
> sequence before it can be recognized by related host, the typical
> example like hard-wired mmc devices and usb devices.
>
> This power sequence is hard to be described at device tree and handled by
> related host driver, so we have created a common power sequence
> library to cover this requirement. The core code has supplied
> some common helpers for host driver, and individual power sequence
> libraries handle kinds of power sequence for devices.
>
> pwrseq_generic is intended for general purpose of power sequence, which
> handles gpios and clocks currently, and can cover regulator and pinctrl
> in future. The host driver calls pwrseq_alloc_generic to create
> an generic pwrseq instance.
>
> Signed-off-by: Peter Chen <peter.chen@nxp.com>
> Tested-by Joshua Clayton <stillcompiling@gmail.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
WARNING: multiple messages have this Message-ID (diff)
From: Matthias Kaehlcke <mka@chromium.org>
To: Peter Chen <peter.chen@nxp.com>
Cc: gregkh@linuxfoundation.org, stern@rowland.harvard.edu,
ulf.hansson@linaro.org, broonie@kernel.org, sre@kernel.org,
robh+dt@kernel.org, shawnguo@kernel.org, dbaryshkov@gmail.com,
dwmw3@infradead.org, k.kozlowski@samsung.com,
linux-arm-kernel@lists.infradead.org, p.zabel@pengutronix.de,
devicetree@vger.kernel.org, pawel.moll@arm.com,
mark.rutland@arm.com, linux-usb@vger.kernel.org, arnd@arndb.de,
s.hauer@pengutronix.de, mail@maciej.szmigiero.name,
troy.kisky@boundarydevices.com, festevam@gmail.com,
oscar@naiandei.net, stephen.boyd@linaro.org,
linux-pm@vger.kernel.org, stillcompiling@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 2/6] power: add power sequence library
Date: Mon, 8 Aug 2016 17:25:01 -0700 [thread overview]
Message-ID: <20160809002501.GA125064@google.com> (raw)
In-Reply-To: <1470646331-23227-3-git-send-email-peter.chen@nxp.com>
El Mon, Aug 08, 2016 at 04:52:07PM +0800 Peter Chen ha dit:
> We have an well-known problem that the device needs to do some power
> sequence before it can be recognized by related host, the typical
> example like hard-wired mmc devices and usb devices.
>
> This power sequence is hard to be described at device tree and handled by
> related host driver, so we have created a common power sequence
> library to cover this requirement. The core code has supplied
> some common helpers for host driver, and individual power sequence
> libraries handle kinds of power sequence for devices.
>
> pwrseq_generic is intended for general purpose of power sequence, which
> handles gpios and clocks currently, and can cover regulator and pinctrl
> in future. The host driver calls pwrseq_alloc_generic to create
> an generic pwrseq instance.
>
> Signed-off-by: Peter Chen <peter.chen@nxp.com>
> Tested-by Joshua Clayton <stillcompiling@gmail.com>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Matthias Kaehlcke <mka@chromium.org>
next prev parent reply other threads:[~2016-08-09 0:25 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-08 8:52 [PATCH v5 0/6] power: add power sequence library Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` [PATCH v5 1/6] binding-doc: power: pwrseq-generic: add binding doc for generic " Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` [PATCH v5 2/6] power: add " Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
[not found] ` <1470646331-23227-3-git-send-email-peter.chen-3arQi8VN3Tc@public.gmane.org>
2016-08-09 0:25 ` Matthias Kaehlcke [this message]
2016-08-09 0:25 ` Matthias Kaehlcke
2016-08-09 0:25 ` Matthias Kaehlcke
2016-08-08 8:52 ` [PATCH v5 3/6] binding-doc: usb: usb-device: add optional properties for power sequence Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` [PATCH v5 4/6] usb: core: add power sequence handling for USB devices Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` [PATCH v5 5/6] usb: chipidea: let chipidea core device of_node equal's glue layer device of_node Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-10 0:15 ` Stephen Boyd
2016-08-10 0:15 ` Stephen Boyd
2016-08-10 3:11 ` Peter Chen
2016-08-10 3:11 ` Peter Chen
2016-08-10 9:00 ` Jun Li
2016-08-10 9:00 ` Jun Li
2016-08-10 9:00 ` Jun Li
2016-08-10 9:19 ` Peter Chen
2016-08-10 9:19 ` Peter Chen
2016-08-10 9:19 ` Peter Chen
2016-08-08 8:52 ` [PATCH v5 6/6] ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB property Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-08 8:52 ` Peter Chen
2016-08-09 23:33 ` Joshua Clayton
2016-08-09 23:33 ` Joshua Clayton
[not found] ` <57AA684F.4020004-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-08-10 3:02 ` Peter Chen
2016-08-10 3:02 ` Peter Chen
2016-08-10 3:02 ` Peter Chen
2016-08-11 16:40 ` [PATCHES] ARM: dts: update udoo and evi hubs to use pwrseq Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-11 16:40 ` [PATCH 2/3] ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB property Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
[not found] ` <1470933632-22133-1-git-send-email-stillcompiling-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-08-11 16:40 ` [PATCH 1/3] ARM: dts: imx6qdl: Enable usb node children with <reg> Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-11 16:40 ` [PATCH 3/3] ARM: dts: imx6q-evi: Fix onboard hub reset line Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-11 16:40 ` Joshua Clayton
2016-08-12 3:11 ` Peter Chen
2016-08-12 3:11 ` Peter Chen
2016-08-12 15:20 ` Joshua Clayton
2016-08-12 15:20 ` Joshua Clayton
2016-08-12 15:20 ` Joshua Clayton
2016-08-12 3:09 ` [PATCHES] ARM: dts: update udoo and evi hubs to use pwrseq Peter Chen
2016-08-12 3:09 ` Peter Chen
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