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From: Shawn Guo <shawnguo@kernel.org>
To: "Angus Ainslie (Purism)" <angus@akkea.ca>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, Pavel Machek <pavel@ucw.cz>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	NXP Linux Team <linux-imx@nxp.com>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	angus.ainslie@puri.sm, Fabio Estevam <festevam@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] arm64: dts: fsl: librem5: Limit the USB to 5V
Date: Mon, 24 Jun 2019 10:08:15 +0800	[thread overview]
Message-ID: <20190624020815.GK3800@dragon> (raw)
In-Reply-To: <20190620170439.18762-1-angus@akkea.ca>

On Thu, Jun 20, 2019 at 11:04:39AM -0600, Angus Ainslie (Purism) wrote:
> The charge controller can handle 14V but the PTC on the devkit can only
> handle 6V so limit the negotiated voltage to 5V.
> 
> Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Prefix 'arm64: dts: librem5: ...' should be fine, so I changed it and
applied the patch.

Shawn

> ---
>  arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index 3f4736fd3cea..ec85ada77955 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -353,7 +353,7 @@
>  			sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM |
>  				PDO_FIXED_DUAL_ROLE |
>  				PDO_FIXED_DATA_SWAP )
> -			     PDO_VAR(5000, 12000, 2000)>;
> +			     PDO_VAR(5000, 3000, 3000)>;
>  			op-sink-microwatt = <10000000>;
>  
>  			ports {
> -- 
> 2.17.1
> 

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WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo@kernel.org>
To: "Angus Ainslie (Purism)" <angus@akkea.ca>
Cc: angus.ainslie@puri.sm, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>, Pavel Machek <pavel@ucw.cz>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: fsl: librem5: Limit the USB to 5V
Date: Mon, 24 Jun 2019 10:08:15 +0800	[thread overview]
Message-ID: <20190624020815.GK3800@dragon> (raw)
In-Reply-To: <20190620170439.18762-1-angus@akkea.ca>

On Thu, Jun 20, 2019 at 11:04:39AM -0600, Angus Ainslie (Purism) wrote:
> The charge controller can handle 14V but the PTC on the devkit can only
> handle 6V so limit the negotiated voltage to 5V.
> 
> Signed-off-by: Angus Ainslie (Purism) <angus@akkea.ca>

Prefix 'arm64: dts: librem5: ...' should be fine, so I changed it and
applied the patch.

Shawn

> ---
>  arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> index 3f4736fd3cea..ec85ada77955 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
> @@ -353,7 +353,7 @@
>  			sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM |
>  				PDO_FIXED_DUAL_ROLE |
>  				PDO_FIXED_DATA_SWAP )
> -			     PDO_VAR(5000, 12000, 2000)>;
> +			     PDO_VAR(5000, 3000, 3000)>;
>  			op-sink-microwatt = <10000000>;
>  
>  			ports {
> -- 
> 2.17.1
> 

  reply	other threads:[~2019-06-24  2:08 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-20 17:04 [PATCH] arm64: dts: fsl: librem5: Limit the USB to 5V Angus Ainslie (Purism)
2019-06-20 17:04 ` Angus Ainslie (Purism)
2019-06-24  2:08 ` Shawn Guo [this message]
2019-06-24  2:08   ` Shawn Guo

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