linux-kernel - Re: [PATCH v3 2/3] phy: qcom-qmp-combo: Add config for SM6350

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Date:   Mon, 23 Jan 2023 14:31:11 +0100
From:   "Luca Weiss" <luca.weiss@...rphone.com>
To:     "Johan Hovold" <johan@...nel.org>
Cc:     "Dmitry Baryshkov" <dmitry.baryshkov@...aro.org>,
        "Vinod Koul" <vkoul@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <~postmarketos/upstreaming@...ts.sr.ht>,
        <phone-devel@...r.kernel.org>, "Andy Gross" <agross@...nel.org>,
        "Bjorn Andersson" <andersson@...nel.org>,
        "Konrad Dybcio" <konrad.dybcio@...aro.org>,
        "Kishon Vijay Abraham I" <kishon@...nel.org>,
        <linux-phy@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/3] phy: qcom-qmp-combo: Add config for SM6350

On Mon Jan 23, 2023 at 1:03 PM CET, Johan Hovold wrote:
> On Mon, Jan 23, 2023 at 12:22:32PM +0100, Luca Weiss wrote:
> > On Mon Jan 23, 2023 at 12:15 PM CET, Dmitry Baryshkov wrote:
>
> > > There are two SERDES regions. One used by USB part of the PHY (at 
> > > 0x1000) and another SERDES region used for DP (at 0x2000). As Johan 
> > > described below, vendor kernel handles the DP regions in the DP driver. 
> > > Possibly this caused a confusion on your side.
> > 
> > Ack, I think I got it now. I also see the registers used downstream
> > now, e.g.:
> > 
> > techpack/display/pll/dp_pll_10nm_util.c:#define QSERDES_COM_LOCK_CMP2_MODE0             0x009C
> > 
> > So now .dp_serdes should be 0x2000. Do I need to change anything else
> > also? I think not?
>
> You also need to add new dp_tx/rx pointers to the offset struct and use
> those in favour of the current ones if set. I think we hashed that bit
> out in one of the previous versions of this patch.

Thanks for the persistent help, I've sent out v4 now, I hope that's good
now and we can get this into v6.3 :)

>
> Johan