linux-kernel - Re: [PATCH v2 2/2] cpuidle: qcom: Add SPM register data for MSM8226

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Date:   Mon, 31 May 2021 16:43:11 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bartosz Dudziak <bartosz.dudziak@...jp.pl>
Cc:     Rob Herring <robh+dt@...nel.org>, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Russell King <linux@...linux.org.uk>,
        David Sterba <dsterba@...e.com>, Jens Axboe <axboe@...nel.dk>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 2/2] cpuidle: qcom: Add SPM register data for MSM8226

On Sun, May 30, 2021 at 02:18:03PM +0200, Bartosz Dudziak wrote:
> Add MSM8226 register data to SPM AVS Wrapper 2 (SAW2) power controller
> driver.
> 
> Signed-off-by: Bartosz Dudziak <bartosz.dudziak@...jp.pl>

I checked that the values added here match the ones I see in
msm8226-pm-v2.dtsi in the downstream kernel, so FWIW:

Reviewed-by: Stephan Gerhold <stephan@...hold.net>

Thanks,
Stephan

> ---
>  drivers/cpuidle/cpuidle-qcom-spm.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/cpuidle/cpuidle-qcom-spm.c b/drivers/cpuidle/cpuidle-qcom-spm.c
> index adf91a6e4d..c0e7971da2 100644
> --- a/drivers/cpuidle/cpuidle-qcom-spm.c
> +++ b/drivers/cpuidle/cpuidle-qcom-spm.c
> @@ -87,6 +87,18 @@ static const struct spm_reg_data spm_reg_8974_8084_cpu  = {
>  	.start_index[PM_SLEEP_MODE_SPC] = 3,
>  };
>  
> +/* SPM register data for 8226 */
> +static const struct spm_reg_data spm_reg_8226_cpu  = {
> +	.reg_offset = spm_reg_offset_v2_1,
> +	.spm_cfg = 0x0,
> +	.spm_dly = 0x3C102800,
> +	.seq = { 0x60, 0x03, 0x60, 0x0B, 0x0F, 0x20, 0x10, 0x80, 0x30, 0x90,
> +		0x5B, 0x60, 0x03, 0x60, 0x3B, 0x76, 0x76, 0x0B, 0x94, 0x5B,
> +		0x80, 0x10, 0x26, 0x30, 0x0F },
> +	.start_index[PM_SLEEP_MODE_STBY] = 0,
> +	.start_index[PM_SLEEP_MODE_SPC] = 5,
> +};
> +
>  static const u8 spm_reg_offset_v1_1[SPM_REG_NR] = {
>  	[SPM_REG_CFG]		= 0x08,
>  	[SPM_REG_SPM_CTL]	= 0x20,
> @@ -259,6 +271,8 @@ static struct spm_driver_data *spm_get_drv(struct platform_device *pdev,
>  }
>  
>  static const struct of_device_id spm_match_table[] = {
> +	{ .compatible = "qcom,msm8226-saw2-v2.1-cpu",
> +	  .data = &spm_reg_8226_cpu },
>  	{ .compatible = "qcom,msm8974-saw2-v2.1-cpu",
>  	  .data = &spm_reg_8974_8084_cpu },
>  	{ .compatible = "qcom,apq8084-saw2-v2.1-cpu",
> -- 
> 2.25.1
>