Re: [PATCH v5 3/3] arm64: dts: qcom: x1e80100-vivobook-s15: Add bluetooth

[Johan Hovold <johan@kernel.org>]

On Mon, Dec 02, 2024 at 07:18:13PM +0100, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maud_spierings@hotmail.com>
> 
> Add bluetooth for the asus vivobook s15
> Describe wlan configuration

I assume you copied most of these (effectively boilerplate) definitions
from somewhere so perhaps you can mention that here (e.g. if it was
copied from Stephan's patches [1]).

> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> Signed-off-by: Maud Spierings <maud_spierings@hotmail.com>
> ---
>  .../boot/dts/qcom/x1e80100-asus-vivobook-s15.dts   | 163 +++++++++++++++++++++
>  1 file changed, 163 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts b/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
> index 7269f8e7709988657b363004875163a69142f16c..0774bd65ae8cddab81b98e27a116fd5adbe1363c 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
> +++ b/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
> @@ -18,6 +18,11 @@ / {
>  	compatible = "asus,vivobook-s15", "qcom,x1e80100";
>  	chassis-type = "laptop";
>  
> +	aliases {
> +		serial0 = &uart21;

No need to add an alias for the console port which is likely not
accessible on this device (without some tinkering).

> +		serial1 = &uart14;
> +	};
> +
>  	gpio-keys {
>  		compatible = "gpio-keys";
>  		pinctrl-0 = <&hall_int_n_default>;

> +	wcn_bt_en: bt-en-state {

Looks like you want a "wcn-" prefix on the node name here too.

> +		pins = "gpio116";
> +		function = "gpio";
> +		drive-strength = <16>;

Is this the drive-strength the firmware uses? The default 2 should be
enough, but you can leave it as-is if it matches the fw settings if you
prefer.

> +		output-low;

I don't think you should be setting the pin state already in the pin
configuration as this should be left up to the driver to control.

> +		bias-pull-down;

A pull-down should not be needed for this output either.

> +	};
> +
> +	wcn_sw_en: wcn-sw-en-state {
> +		pins = "gpio214";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +	};
> +
> +	wcn_wlan_en: wlan-en-state {
> +		pins = "gpio117";
> +		function = "gpio";
> +		drive-strength = <16>;
> +		bias-disable;
> +	};

Same question about the drive strength applies to these two.

> +};

Johan


[1] https://lore.kernel.org/all/20241007-x1e80100-pwrseq-qcp-v1-0-f7166510ab17@linaro.org/