[PATCH v8 phy-next 15/31] drm/rockchip: dw_hdmi: avoid direct dereference of phy->dev.of_node

[Heiko Stuebner]

Hi Vladimir,

Am Dienstag, 5. Mai 2026, 12:05:07 Mitteleuropäische Sommerzeit schrieb Vladimir Oltean:
> The dw_hdmi-rockchip driver validates pixel clock rates against the
> HDMI PHY's internal clock provider on certain SoCs like RK3328.
> This is currently achieved by dereferencing hdmi->phy->dev.of_node
> to obtain the provider node, which violates the Generic PHY API's
> encapsulation (the goal is for struct phy to be an opaque pointer
> with a hidden definition, to be interacted with only using API
> functions or NULL pointer checks, for the case where optional variants
> of phy_get() did not find a PHY).
> 
> Refactor dw_hdmi_rockchip_bind() to perform a manual phandle lookup
> on the "hdmi" PHY index within the controller's DT node. This provides
> a parallel path to the clock provider's OF node without relying on the
> internal structure of the struct phy handle.
> 
> Signed-off-by: Vladimir Oltean <vladimir.oltean at nxp.com>
> Reviewed-by: Heiko Stueber <heiko at sntech.de>

there is now already more stuff depending on this change [0], and
the change itself also is sort of independent of the whole
phy-series. And somehow this series itself sadly hasn't gotten
much review yet.

So would you be ok with me just picking this one patch for the
drm-misc-tree?


Thanks
Heiko

[0] https://lore.kernel.org/dri-devel/20260518193748.2482823-1-jonas@kwiboo.se/