Hi, Yongqiang:
On Mon, 2018-12-24 at 16:08 +0800, Yongqiang Niu wrote:
> This patch add ddp write register common api
>
I could not see anywhere you use these function. If the function is
useless, drop this patch.
Regards,
CK
> Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 24 ++++++++++++++++++++++++
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 +++++++++
> 2 files changed, 33 insertions(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index a97e27b..1c0f9cc 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -84,6 +84,30 @@
> #define DITHER_ADD_LSHIFT_G(x) (((x) & 0x7) << 4)
> #define DITHER_ADD_RSHIFT_G(x) (((x) & 0x7) << 0)
>
> +void mtk_ddp_write(unsigned int value, struct mtk_ddp_comp *comp,
> + unsigned int offset)
> +{
> + writel(value, comp->regs + offset);
> +}
> +
> +void mtk_ddp_write_relaxed(unsigned int value,
> + struct mtk_ddp_comp *comp,
> + unsigned int offset)
> +{
> + writel_relaxed(value, comp->regs + offset);
> +}
> +
> +void mtk_ddp_write_mask(unsigned int value,
> + struct mtk_ddp_comp *comp,
> + unsigned int offset,
> + unsigned int mask)
> +{
> + unsigned int tmp = readl(comp->regs + offset);
> +
> + tmp = (tmp & ~mask) | (value & mask);
> + writel(tmp, comp->regs + offset);
> +}
> +
> void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
> unsigned int CFG)
> {
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> index f2ab0b3..b908172 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> @@ -189,5 +189,14 @@ int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
> void mtk_ddp_comp_unregister(struct drm_device *drm, struct mtk_ddp_comp *comp);
> void mtk_dither_set(struct mtk_ddp_comp *comp, unsigned int bpc,
> unsigned int CFG);
> +void mtk_ddp_write(unsigned int value, struct mtk_ddp_comp *comp,
> + unsigned int offset);
> +void mtk_ddp_write_relaxed(unsigned int value,
> + struct mtk_ddp_comp *comp,
> + unsigned int offset);
> +void mtk_ddp_write_mask(unsigned int value,
> + struct mtk_ddp_comp *comp,
> + unsigned int offset,
> + unsigned int mask);
>
> #endif /* MTK_DRM_DDP_COMP_H */
