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Date: Tue, 8 Feb 2022 13:11:47 -0800
From: Stephen Boyd <swboyd@...omium.org>
To: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>,
agross@...nel.org, bjorn.andersson@...aro.org,
devicetree@...r.kernel.org, dianders@...omium.org,
judyhsiao@...omium.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org, robh+dt@...nel.org,
rohitkr@...eaurora.org, srinivas.kandagatla@...aro.org
Cc: Venkata Prasad Potturu <quic_potturu@...cinc.com>
Subject: Re: [PATCH v2 2/3] arm64: dts: qcom: sc7280: add lpass lpi pin
controller node
Quoting Srinivasa Rao Mandadapu (2022-02-08 07:34:13)
> Add LPASS LPI pinctrl node required for Audio functionality on sc7280
> based platforms.
>
> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
> ---
> arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 150 +++++++++++++++++++++++++++++++
> 1 file changed, 150 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> index c7d6c46..4704a93 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
> @@ -638,3 +638,153 @@
> bias-pull-up;
> };
> };
Newline here.
> +&soc {
> + lpass_tlmm: pinctrl@...0000 {
> + compatible = "qcom,sc7280-lpass-lpi-pinctrl";
> + reg = <0 0x33c0000 0x0 0x20000>,
> + <0 0x3550000 0x0 0x10000>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-ranges = <&lpass_tlmm 0 0 15>;
> +
> + #clock-cells = <1>;
Presumably this doesn't change so it should be moved to the sc7280.dtsi
file as part of the soc node. It can be marked status = "disabled" if
it's not commonly used, but I suspect it is commonly used on sc7280?
> +
> + dmic01_active: dmic01-active-pins {
The '-pins' suffix is redundant. Please remove it.
> + clk {
> + pins = "gpio6";
> + function = "dmic1_clk";
> + drive-strength = <8>;
> + output-high;
> + };
Please be consistent and have a newline between nodes.
> + data {
> + pins = "gpio7";
> + function = "dmic1_data";
> + drive-strength = <8>;
> + input-enable;
> + };
> + };
> +
> + dmic01_sleep: dmic01-sleep-pins {
> + clk {
> + pins = "gpio6";
> + function = "dmic1_clk";
> + drive-strength = <2>;
> + bias-disable;
> + output-low;
> + };
> +
> + data {
> + pins = "gpio7";
> + function = "dmic1_data";
> + drive-strength = <2>;
> + pull-down;
> + input-enable;
Why does input-enable matter? It's not a gpio.
> + };
> + };
> +
> + dmic23_active: dmic02-active-pins {
> + clk {
> + pins = "gpio8";
> + function = "dmic2_clk";
> + drive-strength = <8>;
> + output-high;
> + };
> + data {
> + pins = "gpio9";
> + function = "dmic2_data";
> + drive-strength = <8>;
> + input-enable;
> + };
> + };
> +
> + dmic23_sleep: dmic02-sleep-pins {
> + clk {
> + pins = "gpio8";
> + function = "dmic2_clk";
> + drive-strength = <2>;
> + bias-disable;
> + output-low;
> + };
> +
> + data {
> + pins = "gpio9";
> + function = "dmic2_data";
> + drive-strength = <2>;
> + pull-down;
> + input-enable;
> + };
> + };
> +
> + rx_swr_active: rx_swr-active-pins {
> + clk {
> + pins = "gpio3";
> + function = "swr_rx_clk";
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-disable;
> + };
> +
> + data {
> + pins = "gpio4", "gpio5";
> + function = "swr_rx_data";
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-bus-hold;
> + };
> + };
> +
> + rx_swr_sleep: rx_swr-sleep-pins {
> + clk {
> + pins = "gpio3";
> + function = "swr_rx_clk";
> + drive-strength = <2>;
> + input-enable;
> + bias-pull-down;
> + };
> +
> + data {
> + pins = "gpio4", "gpio5";
> + function = "swr_rx_data";
> + drive-strength = <2>;
> + input-enable;
> + bias-pull-down;
> + };
> + };
> +
> + tx_swr_active: tx_swr-active-pins {
> + clk {
> + pins = "gpio0";
> + function = "swr_tx_clk";
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-disable;
> + };
> +
> + data {
> + pins = "gpio1", "gpio2", "gpio14";
> + function = "swr_tx_data";
> + drive-strength = <2>;
> + slew-rate = <1>;
> + bias-bus-hold;
> + };
> + };
> +
> + tx_swr_sleep: tx_swr-sleep-pins {
No underscore in node names.
> + clk {
> + pins = "gpio0";
> + function = "swr_tx_clk";
> + drive-strength = <2>;
> + input-enable;
> + bias-pull-down;
> + };
> +
> + data {
> + pins = "gpio1", "gpio2", "gpio14";
> + function = "swr_tx_data";
> + drive-strength = <2>;
> + input-enable;
> + bias-bus-hold;
> + };
> + };
> + };
> +};
> --
> 2.7.4
>
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