linux-kernel - Re: [PATCH v3 1/3] dt-bindings: power: rpmhpd: Add Generic RPMh PD indexes

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Date:   Tue, 11 Jul 2023 18:11:07 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Rohit Agarwal <quic_rohiagar@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: power: rpmhpd: Add Generic RPMh PD
 indexes

On 11/07/2023 08:42, Rohit Agarwal wrote:
> Add Generic RPMh Power Domain indexes that can be used
> for all the Qualcomm SoC henceforth.
> 
> Signed-off-by: Rohit Agarwal <quic_rohiagar@...cinc.com>
> Suggested-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
>   include/dt-bindings/power/qcom-rpmhpd.h | 30 ++++++++++++++++++++++++++++++
>   1 file changed, 30 insertions(+)
>   create mode 100644 include/dt-bindings/power/qcom-rpmhpd.h
> 
> diff --git a/include/dt-bindings/power/qcom-rpmhpd.h b/include/dt-bindings/power/qcom-rpmhpd.h
> new file mode 100644
> index 0000000..4da2e04
> --- /dev/null
> +++ b/include/dt-bindings/power/qcom-rpmhpd.h
> @@ -0,0 +1,30 @@
> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
> +/*
> + * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
> + */
> +
> +#ifndef _DT_BINDINGS_POWER_QCOM_RPMHPD_H
> +#define _DT_BINDINGS_POWER_QCOM_RPMHPD_H
> +
> +/* Generic RPMH Power Domain Indexes */
> +#define CX               0
> +#define MX               1
> +#define CX_AO            2
> +#define MX_AO            3
> +#define GFX              4
> +#define MSS              5
> +#define EBI              6
> +#define LCX              7
> +#define LMX              8
> +#define MMCX             9
> +#define MMCX_AO          10
> +#define MXC              11
> +#define MXC_AO           12
> +#define NSP              13
> +#define NSP0             14
> +#define NSP1             15
> +#define QPHY             16
> +#define DDR              17
> +#define XO               18

I went through the existing defines. If we adopt the order of defines 
for sm8550, we can migrate that platform and all of sm8[234]50 without 
breaking ABI. This would be a minor gain, but still something.

> +
> +#endif

-- 
With best wishes
Dmitry