linux-kernel - Re: [PATCH v2 4/7] drm/msm/dsi: add DSI PHY configuration on QCS8300

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Message-ID: <knlsejrmxfzgb7qdy5hpiawuxfg6b5hltjpweope2hl3dm6liy@y5yop35p5afe>
Date: Mon, 6 Oct 2025 13:12:32 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Ayushi Makhija <quic_amakhija@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, robdclark@...il.com, sean@...rly.run,
        marijn.suijten@...ainline.org, andersson@...nel.org, robh@...nel.org,
        robh+dt@...nel.org, krzk+dt@...nel.org, konradybcio@...nel.org,
        conor+dt@...nel.org, andrzej.hajda@...el.com,
        neil.armstrong@...aro.org, rfoss@...nel.org,
        Laurent.pinchart@...asonboard.com, jonathan@...ek.ca, jonas@...boo.se,
        jernej.skrabec@...il.com, quic_rajeevny@...cinc.com,
        quic_vproddut@...cinc.com
Subject: Re: [PATCH v2 4/7] drm/msm/dsi: add DSI PHY configuration on QCS8300

On Mon, Oct 06, 2025 at 07:09:21AM +0530, Ayushi Makhija wrote:
> The QCS8300 SoC uses the 5nm (v4.2) DSI PHY driver.
> 
> Signed-off-by: Ayushi Makhija <quic_amakhija@...cinc.com>
> ---
>  drivers/gpu/drm/msm/dsi/phy/dsi_phy.c     |  2 ++
>  drivers/gpu/drm/msm/dsi/phy/dsi_phy.h     |  1 +
>  drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 23 +++++++++++++++++++++++
>  3 files changed, 26 insertions(+)
> 

The whole point of having the compat fallbacks is to remove the need to
modify the driver. Please review how platform bus handles binding to OF
devices.

-- 
With best wishes
Dmitry