[PATCH v5 6/7] drm/mediatek: support CMDQ interface in ddp component

[Hsin-Yi Wang]

On Tue, Dec 10, 2019 at 5:05 AM Bibby Hsieh <bibby.hsieh at mediatek.com> wrote:

>
> +void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
> +                  struct mtk_ddp_comp *comp, unsigned int offset)
> +{
> +#if IS_ENABLED(CONFIG_MTK_CMDQ)
Should we use #ifdef like in v4? https://patchwork.kernel.org/patch/11274439/

We got warnings while compiling kernels if CONFIG_MTK_CMDQ is not set,
since cmdq_pkt_write() would still be compiled.
Similar in other #if IS_ENABLED(CONFIG_MTK_CMDQ) (also in 7/7
https://patchwork.kernel.org/patch/11281349/)


> +       if (cmdq_pkt)
> +               cmdq_pkt_write(cmdq_pkt, comp->subsys,
> +                              comp->regs_pa + offset, value);
> +       else
> +#endif
> +               writel(value, comp->regs + offset);
> +}
> +