From: Nicolas Ferre <nicolas.ferre@atmel.com>
To: Ludovic Desroches <ludovic.desroches@atmel.com>,
wsa@the-dreams.de, alexandre.belloni@free-electrons.com
Cc: linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org,
plagnioj@jcrosoft.com, linux-arm-kernel@lists.infradead.org,
devicetree@vger.kernel.org
Subject: Re: [PATCH v2 4/4] ARM: at91/dt: sama5d2 Xplained: pmic needs a specific sda hold time
Date: Thu, 3 Dec 2015 11:34:08 +0100 [thread overview]
Message-ID: <56601AA0.5020201@atmel.com> (raw)
In-Reply-To: <1449136434-27619-6-git-send-email-ludovic.desroches@atmel.com>
Le 03/12/2015 10:53, Ludovic Desroches a écrit :
> Data have to be held longer for the PMIC device. The ACT8945A
> datasheet claims that minimum SDA data hold time is about 300 ns.
>
> Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Same here, we'll take this one with at91 material in at91-4.5-dt branch
soon.
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Thanks, bye.
> ---
> arch/arm/boot/dts/at91-sama5d2_xplained.dts | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> index ad6de73..9bced00 100644
> --- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> +++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
> @@ -129,6 +129,7 @@
> dmas = <0>, <0>;
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_i2c0_default>;
> + i2c-sda-hold-time-ns = <350>;
> status = "okay";
>
> pmic: act8865@5b {
>
--
Nicolas Ferre
prev parent reply other threads:[~2015-12-03 10:34 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-03 9:53 [PATCH v2 0/4] i2c: at91: add support for SDA HOLD Ludovic Desroches
[not found] ` <1449136434-27619-1-git-send-email-ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
2015-12-03 9:53 ` [PATCH v2 1/4] i2c: at91: add support for the HOLD field Ludovic Desroches
[not found] ` <1449136434-27619-2-git-send-email-ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org>
2015-12-03 10:30 ` Nicolas Ferre
2015-12-03 9:53 ` [PATCH v2 1/4] i2c: at91: add upport " Ludovic Desroches
2015-12-03 10:08 ` Ludovic Desroches
2015-12-03 9:53 ` [PATCH v2 2/4] i2c: at91: update bindings documention Ludovic Desroches
2015-12-03 10:32 ` Nicolas Ferre
2015-12-03 9:53 ` [PATCH v2 3/4] ARM: at91/dt: sama5d4: update i2c compatible string Ludovic Desroches
2015-12-03 10:33 ` Nicolas Ferre
2015-12-03 20:45 ` Wolfram Sang
2015-12-03 9:53 ` [PATCH v2 4/4] ARM: at91/dt: sama5d2 Xplained: pmic needs a specific sda hold time Ludovic Desroches
2015-12-03 10:34 ` Nicolas Ferre [this message]
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