linux-kernel - Re: [PATCH RFC v3 2/4] spmi: pmic-arb: Make the APID init a version operation

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Date: Wed, 14 Feb 2024 22:16:58 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Abel Vesa <abel.vesa@...aro.org>, Stephen Boyd <sboyd@...nel.org>,
 Matthias Brugger <matthias.bgg@...il.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: Srini Kandagatla <srinivas.kandagatla@...aro.org>,
 Johan Hovold <johan@...nel.org>, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH RFC v3 2/4] spmi: pmic-arb: Make the APID init a version
 operation

On 14.02.2024 22:13, Abel Vesa wrote:
> Rather than using conditionals in probe function, add the APID init
> as a version specific operation. Due to v7, which supports multiple
> buses, pass on the bus index to be used for sorting out the apid base
> and count.
> 
> Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> ---

[...]


> +
>  /*
>   * v5 offset per ee and per apid for observer channels and per apid for
>   * read/write channels.
> @@ -1178,6 +1246,49 @@ static int pmic_arb_offset_v5(struct spmi_pmic_arb *pmic_arb, u8 sid, u16 addr,
>  	return offset;
>  }
>  
> +/*
> + * Only v7 supports 2 bus buses. Each bus will get a different apid count,

"bus buses"?

Konrad