[PATCH v6 08/15] drm/rockchip: vop2: Consolidate HDMI PHY PLL clock parent switch

Daniel Stone daniel at fooishbar.org
Thu Nov 5 04:18:57 PST 2026


Hi,

On Thu, 5 Nov 2026 at 01:01, Cristian Ciocaltea
<cristian.ciocaltea at collabora.com> wrote:
> +               if (pll_hdmiphy) {
> +                       ret = clk_set_parent(vp->dclk, pll_hdmiphy);
> +                       if (ret < 0)
> +                               drm_warn(vop2->drm,
> +                                        "Failed to switch DCLK to HDMI PHY PLL: %d\n",
> +                                        ret);
> +               }

I'm confused ... if we have switched to the PHY for dclk, then a mode
switch wants us to come back to the CRU source, don't we need to
reparent to dclk_src?

Cheers,
Daniel



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