linux-kernel - Re: [PATCH v1 2/2] pinctrl: qcom: sa8775p-lpass-lpi: Add SA8775P LPASS pinctrl

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Message-ID: <3c0e994c-7484-432f-b3b1-bc7523d27242@oss.qualcomm.com>
Date: Mon, 17 Nov 2025 14:17:32 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel@....qualcomm.com, ajay.nandam@....qualcomm.com,
        ravi.hothi@....qualcomm.com
Subject: Re: [PATCH v1 2/2] pinctrl: qcom: sa8775p-lpass-lpi: Add SA8775P
 LPASS pinctrl

On 11/16/25 6:16 PM, Mohammad Rafi Shaik wrote:
> Add pin control support for Low Power Audio SubSystem (LPASS)
> of Qualcomm SA8775P SoC.
> 
> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>
> ---

[...]


> +static const struct lpi_pingroup sa8775p_groups[] = {
> +	LPI_PINGROUP(0, 0, swr_tx_clk, qua_mi2s_sclk, _, _),
> +	LPI_PINGROUP(1, 2, swr_tx_data, qua_mi2s_ws, _, _),
> +	LPI_PINGROUP(2, 4, swr_tx_data, qua_mi2s_data, _, _),
> +	LPI_PINGROUP(3, 8, swr_rx_clk, qua_mi2s_data, _, _),
> +	LPI_PINGROUP(4, 10, swr_rx_data, qua_mi2s_data, _, _),
> +	LPI_PINGROUP(5, 12, swr_rx_data, ext_mclk1_c, qua_mi2s_data, _),
> +	LPI_PINGROUP(6, LPI_NO_SLEW, dmic1_clk, i2s1_clk, _, _),
> +	LPI_PINGROUP(7, LPI_NO_SLEW, dmic1_data, i2s1_ws, _, _),
> +	LPI_PINGROUP(8, LPI_NO_SLEW, dmic2_clk, i2s1_data, _, _),
> +	LPI_PINGROUP(9, LPI_NO_SLEW, dmic2_data, i2s1_data, ext_mclk1_b, _),
> +	LPI_PINGROUP(10, 16, i2s2_clk, wsa_swr_clk, _, _),
> +	LPI_PINGROUP(11, 18, i2s2_ws, wsa_swr_data, _, _),
> +	LPI_PINGROUP(12, LPI_NO_SLEW, dmic3_clk, i2s4_clk, _, _),
> +	LPI_PINGROUP(13, LPI_NO_SLEW, dmic3_data, i2s4_ws, ext_mclk1_a, _),
> +	LPI_PINGROUP(14, 6, swr_tx_data, ext_mclk1_d, _, _),
> +	LPI_PINGROUP(15, 20, i2s2_data, wsa2_swr_clk, _, _),
> +	LPI_PINGROUP(16, 21, i2s2_data, wsa2_swr_data, _, _),

The max slew rate value (shift) here defined in the register map is 18 for
this platform

Konrad