From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
Simon Horman <horms@verge.net.au>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
Marek Vasut <marek.vasut+renesas@gmail.com>
Subject: Re: [PATCH v2 2/3] arm64: dts: renesas: salvator-common: Configure PMIC for DDR Backup Power
Date: Fri, 16 Mar 2018 13:00:12 +0100 [thread overview]
Message-ID: <CAMuHMdUO-Op4u44naZJ37VgzN1GJBL33yRWnF11D9a24y8+x1g@mail.gmail.com> (raw)
In-Reply-To: <9c6289e4-23dd-c79b-bd1f-058d843739d2@cogentembedded.com>
Hi Sergei,
On Wed, Mar 14, 2018 at 4:17 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> On 03/14/2018 03:09 PM, Geert Uytterhoeven wrote:
>> On Salvator-X(S), all of the DDR0, DDR1, DDR0C, and DDR1C power rails
>> need to be kept powered when backup mode is enabled. Reflect this in
>> the "rohm,ddr-backup-power" property for the BD9571MWV PMIC node.
>>
>> The accessory power switch (SW23) is a toggle switch, hense specify
>> "rohm,rstbmode-level".
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>> v2:
>> - Add rohm,rstbmode-level.
>> ---
>> arch/arm64/boot/dts/renesas/salvator-common.dtsi | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> index 2a7f36abd2dd85c6..80794c38c2669d75 100644
>> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> @@ -376,6 +376,8 @@
>> #interrupt-cells = <2>;
>> gpio-controller;
>> #gpio-cells = <2>;
>> + rohm,ddr-backup-power = <15>;
>
> Why not 0xf if those are all bit flags?
Because it's a small number?
Does it matter?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
WARNING: multiple messages have this Message-ID (diff)
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>,
Simon Horman <horms@verge.net.au>,
Magnus Damm <magnus.damm@gmail.com>,
Marek Vasut <marek.vasut+renesas@gmail.com>,
Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v2 2/3] arm64: dts: renesas: salvator-common: Configure PMIC for DDR Backup Power
Date: Fri, 16 Mar 2018 13:00:12 +0100 [thread overview]
Message-ID: <CAMuHMdUO-Op4u44naZJ37VgzN1GJBL33yRWnF11D9a24y8+x1g@mail.gmail.com> (raw)
In-Reply-To: <9c6289e4-23dd-c79b-bd1f-058d843739d2@cogentembedded.com>
Hi Sergei,
On Wed, Mar 14, 2018 at 4:17 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> On 03/14/2018 03:09 PM, Geert Uytterhoeven wrote:
>> On Salvator-X(S), all of the DDR0, DDR1, DDR0C, and DDR1C power rails
>> need to be kept powered when backup mode is enabled. Reflect this in
>> the "rohm,ddr-backup-power" property for the BD9571MWV PMIC node.
>>
>> The accessory power switch (SW23) is a toggle switch, hense specify
>> "rohm,rstbmode-level".
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>> v2:
>> - Add rohm,rstbmode-level.
>> ---
>> arch/arm64/boot/dts/renesas/salvator-common.dtsi | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> index 2a7f36abd2dd85c6..80794c38c2669d75 100644
>> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> @@ -376,6 +376,8 @@
>> #interrupt-cells = <2>;
>> gpio-controller;
>> #gpio-cells = <2>;
>> + rohm,ddr-backup-power = <15>;
>
> Why not 0xf if those are all bit flags?
Because it's a small number?
Does it matter?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
WARNING: multiple messages have this Message-ID (diff)
From: geert@linux-m68k.org (Geert Uytterhoeven)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] arm64: dts: renesas: salvator-common: Configure PMIC for DDR Backup Power
Date: Fri, 16 Mar 2018 13:00:12 +0100 [thread overview]
Message-ID: <CAMuHMdUO-Op4u44naZJ37VgzN1GJBL33yRWnF11D9a24y8+x1g@mail.gmail.com> (raw)
In-Reply-To: <9c6289e4-23dd-c79b-bd1f-058d843739d2@cogentembedded.com>
Hi Sergei,
On Wed, Mar 14, 2018 at 4:17 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> On 03/14/2018 03:09 PM, Geert Uytterhoeven wrote:
>> On Salvator-X(S), all of the DDR0, DDR1, DDR0C, and DDR1C power rails
>> need to be kept powered when backup mode is enabled. Reflect this in
>> the "rohm,ddr-backup-power" property for the BD9571MWV PMIC node.
>>
>> The accessory power switch (SW23) is a toggle switch, hense specify
>> "rohm,rstbmode-level".
>>
>> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
>> ---
>> v2:
>> - Add rohm,rstbmode-level.
>> ---
>> arch/arm64/boot/dts/renesas/salvator-common.dtsi | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> index 2a7f36abd2dd85c6..80794c38c2669d75 100644
>> --- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> +++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
>> @@ -376,6 +376,8 @@
>> #interrupt-cells = <2>;
>> gpio-controller;
>> #gpio-cells = <2>;
>> + rohm,ddr-backup-power = <15>;
>
> Why not 0xf if those are all bit flags?
Because it's a small number?
Does it matter?
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2018-03-16 12:00 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-14 12:09 [PATCH v2 0/3] arm64: dts: renesas: salvator-x(s)/ulcb: Configure PMIC for DDR Backup Power Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` [PATCH v2 1/3] arm64: dts: renesas: ulcb: Add BD9571 PMIC Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` [PATCH v2 2/3] arm64: dts: renesas: salvator-common: Configure PMIC for DDR Backup Power Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 15:17 ` Sergei Shtylyov
2018-03-14 15:17 ` Sergei Shtylyov
2018-03-14 15:17 ` Sergei Shtylyov
2018-03-16 11:49 ` Simon Horman
2018-03-16 11:49 ` Simon Horman
2018-03-16 11:49 ` Simon Horman
2018-03-16 12:00 ` Geert Uytterhoeven [this message]
2018-03-16 12:00 ` Geert Uytterhoeven
2018-03-16 12:00 ` Geert Uytterhoeven
2018-03-16 12:08 ` Sergei Shtylyov
2018-03-16 12:08 ` Sergei Shtylyov
2018-03-16 12:08 ` Sergei Shtylyov
2018-03-26 9:06 ` Simon Horman
2018-03-26 9:06 ` Simon Horman
2018-03-26 9:06 ` Simon Horman
2018-03-26 9:13 ` Geert Uytterhoeven
2018-03-26 9:13 ` Geert Uytterhoeven
2018-03-26 9:13 ` Geert Uytterhoeven
2018-03-27 8:17 ` Simon Horman
2018-03-27 8:17 ` Simon Horman
2018-03-27 8:17 ` Simon Horman
2018-03-14 12:09 ` [PATCH v2 3/3] arm64: dts: renesas: ulcb: " Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
2018-03-14 12:09 ` Geert Uytterhoeven
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