lkml.org 
[lkml]   [2022]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v2] arm64: dts: qcom: sc7280: Move wcd specific pin conf to common file
Quoting Srinivasa Rao Mandadapu (2022-07-07 05:36:21)
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audio-wcd9385.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audio-wcd9385.dtsi
> index 32a1e78..859faaa 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine-audio-wcd9385.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine-audio-wcd9385.dtsi
> @@ -5,6 +5,70 @@
> * Copyright (c) 2022, The Linux Foundation. All rights reserved.
> */
>
> +/* PINCTRL */
> +
> +&lpass_dmic01_clk {
> + drive-strength = <8>;
> + bias-disable;
> +};
> +
> +&lpass_dmic01_clk_sleep {
> + drive-strength = <2>;
> +};
> +
> +&lpass_dmic01_data {
> + bias-pull-down;
> +};
> +
> +&lpass_dmic23_clk {
> + drive-strength = <8>;
> + bias-disable;
> +};
> +
> +&lpass_dmic23_clk_sleep {
> + drive-strength = <2>;
> +};
> +
> +&lpass_dmic23_data {
> + bias-pull-down;
> +};
> +
> +&lpass_rx_swr_clk {
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-disable;
> +};
> +
> +&lpass_rx_swr_clk_sleep {
> + bias-pull-down;
> +};
> +
> +&lpass_rx_swr_data {
> + drive-strength = <2>;

I suspect this was discussed before, but why do we need to modify drive
strengths on pins that aren't in output mode? I assume either rx_swr or
tx_swr is unidirectional.

> + slew-rate = <1>;
> + bias-bus-hold;
> +};
> +
> +&lpass_rx_swr_data_sleep {
> + bias-pull-down;
> +};
> +
> +&lpass_tx_swr_clk {
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-disable;
> +};
> +
> +&lpass_tx_swr_clk_sleep {
> + bias-pull-down;
> +};
> +
> +&lpass_tx_swr_data {
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-bus-hold;
> +};
> +
> &mi2s1_data0 {
> drive-strength = <6>;
> bias-disable;

\
 
 \ /
  Last update: 2022-07-08 20:00    [W:0.069 / U:0.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site