Re: [PATCH 00/70] drm/crtc: Convert all drivers to atomic_create_state and remove reset

[Maxime Ripard <mripard@kernel.org>]

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On Fri, Aug 21, 2026 at 04:38:36PM +0200, Maxime Ripard wrote:
> This is a follow-up to the plane reset removal series, and part of a
> larger effort to remove the reset hook from all KMS objects.
> 
> The CRTC reset hook is overloaded: it is called both at probe time to
> create the initial software state and during suspend/resume to reset
> hardware and software state. These two roles have different
> requirements, and the reset hook is not fallible, making error
> handling difficult for the initial state allocation path.
> 
> While reset has the semantics to reset both the software and hardware
> state, the vast majority of implementations and all the helpers only
> reset the software state, making them equivalent to
> atomic_create_state in practice. The atomic_create_state hook makes
> this explicit: it only allocates and initializes a pristine state
> without any side effect, and returns the state pointer or an ERR_PTR
> on failure.
> 
> This series converts all CRTC drivers tree-wide from the reset hook to
> atomic_create_state, then removes the reset hook from struct
> drm_crtc_funcs entirely. Two drivers (tilcdc and loongson) had actual
> hardware reset logic mixed into their reset hook; those are moved to
> CRTC creation instead. The conversions were done using a combination of
> Coccinelle semantic patches and manual adjustments.
> 
> Signed-off-by: Maxime Ripard <mripard@kernel.org>


Applied patches 1,3-14,16-28,31-41,43,45-49,52-62,64-68 to drm-misc-next

Maxime

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