[PATCH v2 09/46] drm/mediatek: De-duplicate internal component checks

[CK Hu (胡俊光)]

On Tue, 2026-07-14 at 13:43 +0200, AngeloGioacchino Del Regno wrote:
> Both mtk_ddp_comp and mtk_drm_drv are performing similar checks
> to distinguish components that have an external driver from ones
> that don't - with the exception of mtk_ddp_comp also checking if
> the component is related to a backlight driver.
> 
> Create helper functions in the main component management driver
> mtk_ddp_comp, one to check if the currently checked component is
> internal/simple, and one (static, internal to mtk_ddp_comp only)
> to check if it is a backlight related one.
> 
> Since the amount of internal/simple components is lower than the
> amount of ones having a specific driver, and since it is expected
> that most of (if not all) of any new hardware support will need a
> specific driver as well, the helpers are doing an inverted check
> compared to what the code was doing before, as both mtk_ddp_comp
> and mtk_drm_drv were checking for external component explicitly,
> while now they're doing the same, but checking if NOT internal.
> 
> Also, while at it, for the OVL_ADAPTOR components case, instead
> of checking for MTK_DISP_OVL_ADAPTOR, call the already provided
> mtk_ovl_adaptor_is_comp_present() function to check for this type
> of component.

Reviewed-by: CK Hu <ck.hu at mediatek.com>

> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> ---