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From: Pavel Machek <pavel@ucw.cz>
To: "Angus Ainslie (Purism)" <angus@akkea.ca>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, Fabio Estevam <festevam@gmail.com>,
	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, Shawn Guo <shawnguo@kernel.org>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v13 2/4] arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit
Date: Thu, 23 May 2019 21:19:26 +0200	[thread overview]
Message-ID: <20190523191926.GB3803@xo-6d-61-c0.localdomain> (raw)
In-Reply-To: <20190520142330.3556-3-angus@akkea.ca>

Hi!

> - LEDs
> - gyro
> - magnetometer

> +	leds {
> +		compatible = "gpio-leds";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_gpio_leds>;
> +
> +		led1 {
> +			label = "LED 1";

So, what kind of LED do you have, and what color is it? label should probably be something like
notify:green.

> +	charger@6b { /* bq25896 */
> +		compatible = "ti,bq25890";
> +		reg = <0x6b>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_charger>;
> +		interrupt-parent = <&gpio3>;
> +		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
> +		ti,battery-regulation-voltage = <4192000>; /* 4.192V */
> +		ti,charge-current = <1600000>; /* 1.6 A */

No space before A, for consistency.

> +		ti,termination-current = <66000>;  /* 66mA */
> +		ti,precharge-current = <1300000>; /* 1.3A */

I thought precharge is usually something low, because you are not yet sure of battery health...?

> +		ti,minimum-sys-voltage = <2750000>; /* 2.75V */

Are you sure? Normally systems shut down at 3.2V, 3V or so. Li-ion batteries don't
really like to be discharged _this_ deep.

										Pavel

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  parent reply	other threads:[~2019-05-23 19:19 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-20 14:23 [PATCH v13 0/4] Add support for the Purism Librem5 devkit Angus Ainslie (Purism)
2019-05-20 14:23 ` [PATCH v13 1/4] MAINTAINERS: add an entry for for arm64 imx devicetrees Angus Ainslie (Purism)
2019-05-20 14:23 ` [PATCH v13 2/4] arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit Angus Ainslie (Purism)
2019-05-23 19:19   ` Pavel Machek
2019-05-23 21:52     ` Angus Ainslie
2019-05-23 22:06       ` Pavel Machek
2019-05-23 19:19   ` Pavel Machek [this message]
2019-05-24 22:00     ` Angus Ainslie
2019-05-24 22:20       ` Angus Ainslie
2019-05-20 14:23 ` [PATCH v13 3/4] dt-bindings: Add an entry for Purism SPC Angus Ainslie (Purism)
2019-05-20 23:00   ` Rob Herring
2019-05-20 14:23 ` [PATCH v13 4/4] dt-bindings: arm: fsl: Add the imx8mq boards Angus Ainslie (Purism)

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