From: Peter Chen <hzpeterchen@gmail.com>
To: "Maciej S. Szmigiero" <mail@maciej.szmigiero.name>
Cc: mark.rutland@arm.com, Peter Chen <peter.chen@nxp.com>,
ulf.hansson@linaro.org, stephen.boyd@linaro.org,
k.kozlowski@samsung.com, festevam@gmail.com, pawel.moll@arm.com,
javier@osg.samsung.com, stern@rowland.harvard.edu,
devicetree@vger.kernel.org, arnd@arndb.de,
linux-pm@vger.kernel.org, s.hauer@pengutronix.de,
troy.kisky@boundarydevices.com, robh+dt@kernel.org,
linux-arm-kernel@lists.infradead.org, oscar@naiandei.net,
gregkh@linuxfoundation.org, linux-usb@vger.kernel.org,
linux-mmc@vger.kernel.org, sre@kernel.org, broonie@kernel.org,
p.zabel@pengutronix.de
Subject: Re: [PATCH 00/12] power: add generic power sequence framework
Date: Mon, 20 Jun 2016 19:27:37 +0800 [thread overview]
Message-ID: <20160620112737.GB26936@shlinux2> (raw)
In-Reply-To: <576487C1.5050807@maciej.szmigiero.name>
On Sat, Jun 18, 2016 at 01:29:05AM +0200, Maciej S. Szmigiero wrote:
> Hi Peter,
>
> On 17.06.2016 12:09, Peter Chen wrote:
> > Hi all,
> >
> > 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
> > framework to handle this requirement. The generic code is supplied
> > some common helpers from host driver, and individual power sequence
> > driver handles kinds of power sequence for devices.
> >
> > Since the MMC has already done the similar things, and this power
> > sequence handling can be generic, we use mmc power sequence code
> > as base to create this framework.
> >
> > This patch set is based on Krzysztof Kozlowski's RFC patch set (v4.7-rc1)
> > [1], and making some changes which can let it be generic. After that,
> > we create a generic power sequence driver for USB devices which handles
> > below things, it includes all input signals for devices I can consider.
> >
> > - Clock and its frequencies
> > - GPIO for reset and the duration time
> > - GPIO for enable
> > - Regulator for power
> >
> > This patch set is tested on i.mx6 sabresx evk using a dts change, I use
> > two hot-plug devices to simulate this use case. The udoo board changes
> > were tested using my last power sequence patch set. [2]
> >
> > @Maciej S. Szmigiero, Oscar, would you please test them on imx6qdl udoo
> > boards?
>
> Thanks for the patch set, just tested them on my UDOO Quad board and can
> confirm that USB and on-board hub work fine.
>
> Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
>
> Maciej
>
Many thanks, Maciej.
--
Best Regards,
Peter Chen
WARNING: multiple messages have this Message-ID (diff)
From: hzpeterchen@gmail.com (Peter Chen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/12] power: add generic power sequence framework
Date: Mon, 20 Jun 2016 19:27:37 +0800 [thread overview]
Message-ID: <20160620112737.GB26936@shlinux2> (raw)
In-Reply-To: <576487C1.5050807@maciej.szmigiero.name>
On Sat, Jun 18, 2016 at 01:29:05AM +0200, Maciej S. Szmigiero wrote:
> Hi Peter,
>
> On 17.06.2016 12:09, Peter Chen wrote:
> > Hi all,
> >
> > 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
> > framework to handle this requirement. The generic code is supplied
> > some common helpers from host driver, and individual power sequence
> > driver handles kinds of power sequence for devices.
> >
> > Since the MMC has already done the similar things, and this power
> > sequence handling can be generic, we use mmc power sequence code
> > as base to create this framework.
> >
> > This patch set is based on Krzysztof Kozlowski's RFC patch set (v4.7-rc1)
> > [1], and making some changes which can let it be generic. After that,
> > we create a generic power sequence driver for USB devices which handles
> > below things, it includes all input signals for devices I can consider.
> >
> > - Clock and its frequencies
> > - GPIO for reset and the duration time
> > - GPIO for enable
> > - Regulator for power
> >
> > This patch set is tested on i.mx6 sabresx evk using a dts change, I use
> > two hot-plug devices to simulate this use case. The udoo board changes
> > were tested using my last power sequence patch set. [2]
> >
> > @Maciej S. Szmigiero, Oscar, would you please test them on imx6qdl udoo
> > boards?
>
> Thanks for the patch set, just tested them on my UDOO Quad board and can
> confirm that USB and on-board hub work fine.
>
> Tested-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
>
> Maciej
>
Many thanks, Maciej.
--
Best Regards,
Peter Chen
next prev parent reply other threads:[~2016-06-20 11:27 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-17 10:09 [PATCH 00/12] power: add generic power sequence framework Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 01/12] power/mmc: Move pwrseq drivers to power/pwrseq Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 02/12] MAINTAINERS: Retain Ulf Hansson as the same maintainer of pwrseq Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 03/12] power: pwrseq: Enable COMPILE_TEST for drivers Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 05/12] power: pwrseq: Generalize mmc_pwrseq operations by removing mmc prefix Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 06/12] power: pwrseq: change common helpers as generic Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 07/12] power: pwrseq: rename file name for generic driver Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-20 12:48 ` Krzysztof Kozlowski
2016-06-20 12:48 ` Krzysztof Kozlowski
2016-06-21 2:19 ` Peter Chen
2016-06-21 2:19 ` Peter Chen
2016-06-17 10:09 ` [PATCH 09/12] power: pwrseq: pwrseq_usb_generic: add generic power sequence support for USB deivces Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 11/12] usb: chipidea: host: let the hcd know's parent device node Peter Chen
2016-06-17 10:09 ` Peter Chen
[not found] ` <1466158165-9380-1-git-send-email-peter.chen-3arQi8VN3Tc@public.gmane.org>
2016-06-17 10:09 ` [PATCH 04/12] power: pwrseq: Remove mmc prefix from mmc_pwrseq Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 10:09 ` [PATCH 08/12] doc: binding: pwrseq-usb-generic: add binding doc for generic usb power sequence driver Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 17:16 ` Rob Herring
2016-06-17 17:16 ` Rob Herring
2016-06-20 11:26 ` Peter Chen
2016-06-20 11:26 ` Peter Chen
2016-06-20 12:29 ` Chen-Yu Tsai
2016-06-20 12:29 ` Chen-Yu Tsai
2016-06-21 2:14 ` Peter Chen
2016-06-21 2:14 ` Peter Chen
2016-06-20 16:16 ` Rob Herring
2016-06-20 16:16 ` Rob Herring
2016-06-20 17:06 ` Mark Brown
2016-06-20 17:06 ` Mark Brown
2016-06-21 2:11 ` Peter Chen
2016-06-21 2:11 ` Peter Chen
2016-06-21 21:26 ` Rob Herring
2016-06-21 21:26 ` Rob Herring
2016-06-22 1:14 ` Peter Chen
2016-06-22 1:14 ` Peter Chen
2016-06-22 9:09 ` Ulf Hansson
2016-06-22 9:09 ` Ulf Hansson
2016-06-24 15:25 ` Rob Herring
2016-06-24 15:25 ` Rob Herring
2016-06-17 10:09 ` [PATCH 10/12] usb: core: add power sequence handling for USB devices Peter Chen
2016-06-17 10:09 ` Peter Chen
[not found] ` <1466158165-9380-11-git-send-email-peter.chen-3arQi8VN3Tc@public.gmane.org>
2016-06-17 16:12 ` Alan Stern
2016-06-17 16:12 ` Alan Stern
2016-06-17 10:09 ` [PATCH 12/12] ARM: dts: imx6qdl-udoo.dtsi: fix onboard USB HUB property Peter Chen
2016-06-17 10:09 ` Peter Chen
2016-06-17 23:29 ` [PATCH 00/12] power: add generic power sequence framework Maciej S. Szmigiero
2016-06-17 23:29 ` Maciej S. Szmigiero
2016-06-20 11:27 ` Peter Chen [this message]
2016-06-20 11:27 ` Peter Chen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160620112737.GB26936@shlinux2 \
--to=hzpeterchen@gmail.com \
--cc=arnd@arndb.de \
--cc=broonie@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=javier@osg.samsung.com \
--cc=k.kozlowski@samsung.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-mmc@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mail@maciej.szmigiero.name \
--cc=mark.rutland@arm.com \
--cc=oscar@naiandei.net \
--cc=p.zabel@pengutronix.de \
--cc=pawel.moll@arm.com \
--cc=peter.chen@nxp.com \
--cc=robh+dt@kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=sre@kernel.org \
--cc=stephen.boyd@linaro.org \
--cc=stern@rowland.harvard.edu \
--cc=troy.kisky@boundarydevices.com \
--cc=ulf.hansson@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.