Re: [PATCH v2 2/3] ARM: dts: add Netronix E60K02 board common file

Jonathan Neuschäfer
2019-10-06T22:39:53Z

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Thanks for CCing me on this patchset. Nice to see more e-book reader
related work!

A few comments and questions below.

On Mon, Sep 30, 2019 at 09:43:31PM +0200, Andreas Kemnade wrote:
> The Netronix board E60K02 can be found some several Ebook-Readers,
> at least the Kobo Clara HD and the Tolino Shine 3. The board
> is equipped with different SoCs requiring different pinmuxes.

Do I understand it correctly that i.MX6SL and i.MX6SLL are pin-
compatible so we can use the same pin numbers and GPIO handles in the
DT?

> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_led>;
> +
> + GLED {

What does "GLED" mean? It's not obvious to me.
What user-visible purpose does this LED have, or where is it on the
board?

> + gpios = <&gpio5 7 GPIO_ACTIVE_LOW>;
> + linux,default-trigger = "timer";
> + };
> + };
> +
> + memory {
> + reg = <0x80000000 0x80000000>;

2 GiB of memory?

> + /* Core3_3V3 */

What are these labels (Core3_3V3, Core4_1V2, etc.)?

> + dcdc2_reg: DCDC2 {
> + regulator-name = "DCDC2";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-max-microvolt = <3300000>;
> + regulator-suspend-min-microvolt = <3300000>;
> + };
> + };

Thanks,
Jonathan Neuschäfer

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