[PATCH v8 13/20] drm/mediatek:Use reg_write function pointer for subsys ID compatibility

[CK Hu (胡俊光)]

On Fri, 2025-10-17 at 14:44 +0800, Jason-JH Lin wrote:
> Switch to reg_write and reg_write_mask function pointers for register
> access, enabling compatibility with platforms regardless of subsys ID
> support.

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

> 
> Signed-off-by: Jason-JH Lin <jason-jh.lin at mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_ddp_comp.c | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
> index ac6620e10262..aa217fb11fd7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_ddp_comp.c
> @@ -72,8 +72,8 @@ void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
>  {
>  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>  	if (cmdq_pkt)
> -		cmdq_pkt_write(cmdq_pkt, cmdq_reg->subsys,
> -			       cmdq_reg->offset + offset, value);
> +		cmdq_reg->reg_write(cmdq_pkt, cmdq_reg->subsys, cmdq_reg->pa_base,
> +				    cmdq_reg->offset + offset, value);
>  	else
>  #endif
>  		writel(value, regs + offset);
> @@ -85,8 +85,8 @@ void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
>  {
>  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>  	if (cmdq_pkt)
> -		cmdq_pkt_write(cmdq_pkt, cmdq_reg->subsys,
> -			       cmdq_reg->offset + offset, value);
> +		cmdq_reg->reg_write(cmdq_pkt, cmdq_reg->subsys, cmdq_reg->pa_base,
> +				    cmdq_reg->offset + offset, value);
>  	else
>  #endif
>  		writel_relaxed(value, regs + offset);
> @@ -98,8 +98,8 @@ void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
>  {
>  #if IS_REACHABLE(CONFIG_MTK_CMDQ)
>  	if (cmdq_pkt) {
> -		cmdq_pkt_write_mask(cmdq_pkt, cmdq_reg->subsys,
> -				    cmdq_reg->offset + offset, value, mask);
> +		cmdq_reg->reg_write_mask(cmdq_pkt, cmdq_reg->subsys, cmdq_reg->pa_base,
> +					 cmdq_reg->offset + offset, value, mask);
>  	} else {
>  #endif
>  		u32 tmp = readl(regs + offset);