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From: Pascal PAILLET-LME <p.paillet@st.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: "mark.rutland@arm.com" <mark.rutland@arm.com>,
	Alexandre TORGUE <alexandre.torgue@st.com>,
	"arnd@arndb.de" <arnd@arndb.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux@armlinux.org.uk" <linux@armlinux.org.uk>,
	"biju.das@bp.renesas.com" <biju.das@bp.renesas.com>,
	Yannick FERTRE <yannick.fertre@st.com>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"mcoquelin.stm32@gmail.com" <mcoquelin.stm32@gmail.com>,
	"olof@lixom.net" <olof@lixom.net>,
	"horms+renesas@verge.net.au" <horms+renesas@verge.net.au>,
	"geert+renesas@glider.be" <geert+renesas@glider.be>,
	"linux-stm32@st-md-mailman.stormreply.com"
	<linux-stm32@st-md-mailman.stormreply.com>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"m.szyprowski@samsung.com" <m.szyprowski@samsung.com>
Subject: Re: [PATCH 1/3] ARM: dts: stm32: add stpmic1 support on stm32mp157c ed1 board
Date: Mon, 8 Apr 2019 12:26:33 +0000	[thread overview]
Message-ID: <5CAB3DF8.7020505@st.com> (raw)
In-Reply-To: <CACRpkdZ9evBnvnmidQ2VW=dPUdGBM4Pkzo1VyMfDdQZFe6U7TA@mail.gmail.com>

Hello!

Le 04/08/2019 02:05 PM, Linus Walleij a écrit :
> On Wed, Apr 3, 2019 at 3:41 PM Pascal PAILLET-LME <p.paillet@st.com> wrote:
>
>> This patch adds stpmic1 support on stm32mp157c ed1 board.
>> The STPMIC1 is a PMIC from STMicroelectronics. The STPMIC1 integrates 10
>> regulators, 3 power switches, a watchdog and an input for a power on key.
>>
>> Signed-off-by: Pascal Paillet <p.paillet@st.com>
> OK
>
>> +       /delete-property/dmas;
>> +       /delete-property/dma-names;
> Maybe you can add a comment both to the commit message and the
> DTS file as to why you are doing this?
>
> I hope you are not trying to work around a bug in the driver by
> stripping out DMA configuration from the device tree, because then
> it is probably a better idea to fix the bug.
This is not a workaround. The PMIC can use the DMA over I2C bus.
Our goal is to avoid using a DMA channel for a consumer that generates a
very few traffic. Dma channels may lack for other use cases.

If you agree, you can add the to the commit message.
> Yours,
> Linus Walleij
>

thank you,
Best Regards,
Pascal
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Pascal PAILLET-LME <p.paillet@st.com>
To: Linus Walleij <linus.walleij@linaro.org>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>
Cc: "mcoquelin.stm32@gmail.com" <mcoquelin.stm32@gmail.com>,
	Alexandre TORGUE <alexandre.torgue@st.com>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"linux@armlinux.org.uk" <linux@armlinux.org.uk>,
	"horms+renesas@verge.net.au" <horms+renesas@verge.net.au>,
	"olof@lixom.net" <olof@lixom.net>,
	"arnd@arndb.de" <arnd@arndb.de>,
	"geert+renesas@glider.be" <geert+renesas@glider.be>,
	"biju.das@bp.renesas.com" <biju.das@bp.renesas.com>,
	Yannick FERTRE <yannick.fertre@st.com>,
	"m.szyprowski@samsung.com" <m.szyprowski@samsung.com>,
	"linux-stm32@st-md-mailman.stormreply.com" 
	<linux-stm32@st-md-mailman.stormreply.com>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/3] ARM: dts: stm32: add stpmic1 support on stm32mp157c ed1 board
Date: Mon, 8 Apr 2019 12:26:33 +0000	[thread overview]
Message-ID: <5CAB3DF8.7020505@st.com> (raw)
In-Reply-To: <CACRpkdZ9evBnvnmidQ2VW=dPUdGBM4Pkzo1VyMfDdQZFe6U7TA@mail.gmail.com>

Hello!

Le 04/08/2019 02:05 PM, Linus Walleij a écrit :
> On Wed, Apr 3, 2019 at 3:41 PM Pascal PAILLET-LME <p.paillet@st.com> wrote:
>
>> This patch adds stpmic1 support on stm32mp157c ed1 board.
>> The STPMIC1 is a PMIC from STMicroelectronics. The STPMIC1 integrates 10
>> regulators, 3 power switches, a watchdog and an input for a power on key.
>>
>> Signed-off-by: Pascal Paillet <p.paillet@st.com>
> OK
>
>> +       /delete-property/dmas;
>> +       /delete-property/dma-names;
> Maybe you can add a comment both to the commit message and the
> DTS file as to why you are doing this?
>
> I hope you are not trying to work around a bug in the driver by
> stripping out DMA configuration from the device tree, because then
> it is probably a better idea to fix the bug.
This is not a workaround. The PMIC can use the DMA over I2C bus.
Our goal is to avoid using a DMA channel for a consumer that generates a
very few traffic. Dma channels may lack for other use cases.

If you agree, you can add the to the commit message.
> Yours,
> Linus Walleij
>

thank you,
Best Regards,
Pascal

  reply	other threads:[~2019-04-08 12:27 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-03 13:40 [PATCH 0/3] Add support for STPMIC1 Pascal PAILLET-LME
2019-04-03 13:40 ` Pascal PAILLET-LME
2019-04-03 13:40 ` Pascal PAILLET-LME
2019-04-03 13:40 ` [PATCH 2/3] ARM: dts: stm32: add stpmic1 support on stm32mp157a dk1 board Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME
2019-04-08 12:06   ` Linus Walleij
2019-04-08 12:06     ` Linus Walleij
2019-04-08 12:06     ` Linus Walleij
2019-04-03 13:40 ` [PATCH 1/3] ARM: dts: stm32: add stpmic1 support on stm32mp157c ed1 board Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME
2019-04-08 12:05   ` Linus Walleij
2019-04-08 12:05     ` Linus Walleij
2019-04-08 12:05     ` Linus Walleij
2019-04-08 12:26     ` Pascal PAILLET-LME [this message]
2019-04-08 12:26       ` Pascal PAILLET-LME
2019-04-08 13:06       ` Linus Walleij
2019-04-08 13:06         ` Linus Walleij
2019-04-08 13:06         ` Linus Walleij
2019-04-03 13:40 ` [PATCH 3/3] ARM: multi_v7_defconfig: Enable support for STPMIC1 Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME
2019-04-03 13:40   ` Pascal PAILLET-LME

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