Re: [PATCH v6, 04/14] drm/mediatek: add mmsys private data for ddp path config

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Hi, Yongqiang:

On Thu, 2020-01-02 at 12:00 +0800, Yongqiang Niu wrote:
> This patch add mmsys private data for ddp path config
> all these register offset and value will be different in future SOC
> add these define into mmsys private data
> 	u32 ovl0_mout_en;
> 	u32 rdma1_sout_sel_in;
> 	u32 rdma1_sout_dsi0;
> 	u32 dpi0_sel_in;
> 	u32 dpi0_sel_in_rdma1;
> 	u32 dsi0_sel_in;
> 	u32 dsi0_sel_in_rdma1;
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c |  4 +++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c  | 63 ++++++++++++++++++++++++---------
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.h  |  6 ++++
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c  |  3 ++
>  drivers/gpu/drm/mediatek/mtk_drm_drv.h  |  3 ++
>  5 files changed, 63 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> index e47cf84..9aacbcf 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
> @@ -44,6 +44,7 @@ struct mtk_drm_crtc {
>  	bool				pending_planes;
>  
>  	struct regmap			*config_regs;
> +	const struct mtk_mmsys_reg_data *mmsys_reg_data;
>  	struct mtk_disp_mutex		*mutex;
>  	unsigned int			ddp_comp_nr;
>  	struct mtk_ddp_comp		**ddp_comp;
> @@ -283,6 +284,7 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
>  	DRM_DEBUG_DRIVER("mediatek_ddp_ddp_path_setup\n");
>  	for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
>  		mtk_ddp_add_comp_to_path(mtk_crtc->config_regs,
> +					 mtk_crtc->mmsys_reg_data,
>  					 mtk_crtc->ddp_comp[i]->id,
>  					 mtk_crtc->ddp_comp[i + 1]->id);
>  		mtk_disp_mutex_add_comp(mtk_crtc->mutex,
> @@ -340,6 +342,7 @@ static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc)
>  	mtk_disp_mutex_disable(mtk_crtc->mutex);
>  	for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
>  		mtk_ddp_remove_comp_from_path(mtk_crtc->config_regs,
> +					      mtk_crtc->mmsys_reg_data,
>  					      mtk_crtc->ddp_comp[i]->id,
>  					      mtk_crtc->ddp_comp[i + 1]->id);
>  		mtk_disp_mutex_remove_comp(mtk_crtc->mutex,
> @@ -649,6 +652,7 @@ int mtk_drm_crtc_create(struct drm_device *drm_dev,
>  		return -ENOMEM;
>  
>  	mtk_crtc->config_regs = priv->config_regs;
> +	mtk_crtc->mmsys_reg_data = priv->data->reg_data;
>  	mtk_crtc->ddp_comp_nr = path_len;
>  	mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
>  						sizeof(*mtk_crtc->ddp_comp),
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index f99f89a1..ea0ce32 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -168,6 +168,16 @@ struct mtk_ddp {
>  	const struct mtk_ddp_data	*data;
>  };
>  
> +struct mtk_mmsys_reg_data {
> +	u32 ovl0_mout_en;
> +	u32 rdma1_sout_sel_in;
> +	u32 rdma1_sout_dpi0;
> +	u32 dpi0_sel_in;
> +	u32 dpi0_sel_in_rdma1;
> +	u32 dsi0_sel_in;
> +	u32 dsi0_sel_in_rdma1;

This patch looks like a combination of two patches. One is a bug fix
that dsi0_sel_in and dsi0_sel_in_rdma1 are different in MT8173 and
MT2701. And the other is that ovl0_mout_en, rdma1_sout_sel_in,
rdma1_sout_dpi0, dpi0_sel_in, dpi0_sel_in_rdma1 are different in MT8183.

Regards,
CK

> +};
> +
>  static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
>  	[DDP_COMPONENT_BLS] = MT2701_MUTEX_MOD_DISP_BLS,
>  	[DDP_COMPONENT_COLOR0] = MT2701_MUTEX_MOD_DISP_COLOR,
> @@ -246,17 +256,34 @@ struct mtk_ddp {
>  	.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
>  };
>  
> -static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
> +const struct mtk_mmsys_reg_data mt2701_mmsys_reg_data = {
> +	.ovl0_mout_en = DISP_REG_CONFIG_DISP_OVL_MOUT_EN,
> +	.dsi0_sel_in = DISP_REG_CONFIG_DSI_SEL,
> +	.dsi0_sel_in_rdma1 = DSI_SEL_IN_RDMA,
> +};
> +
> +const struct mtk_mmsys_reg_data mt8173_mmsys_reg_data = {
> +	.ovl0_mout_en = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN,
> +	.rdma1_sout_sel_in = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN,
> +	.rdma1_sout_dpi0 = RDMA1_SOUT_DPI0,
> +	.dpi0_sel_in = DISP_REG_CONFIG_DPI_SEL_IN,
> +	.dpi0_sel_in_rdma1 = DPI0_SEL_IN_RDMA1,
> +	.dsi0_sel_in = DISP_REG_CONFIG_DSIE_SEL_IN,
> +	.dsi0_sel_in_rdma1 = DSI0_SEL_IN_RDMA1,
> +};
> +
> +static unsigned int mtk_ddp_mout_en(const struct mtk_mmsys_reg_data *data,
> +				    enum mtk_ddp_comp_id cur,
>  				    enum mtk_ddp_comp_id next,
>  				    unsigned int *addr)
>  {
>  	unsigned int value;
>  
>  	if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_COLOR0) {
> -		*addr = DISP_REG_CONFIG_DISP_OVL0_MOUT_EN;
> +		*addr = data->ovl0_mout_en;
>  		value = OVL0_MOUT_EN_COLOR0;
>  	} else if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_RDMA0) {
> -		*addr = DISP_REG_CONFIG_DISP_OVL_MOUT_EN;
> +		*addr = data->ovl0_mout_en;
>  		value = OVL_MOUT_EN_RDMA;
>  	} else if (cur == DDP_COMPONENT_OD0 && next == DDP_COMPONENT_RDMA0) {
>  		*addr = DISP_REG_CONFIG_DISP_OD_MOUT_EN;
> @@ -298,8 +325,8 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
>  		*addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
>  		value = RDMA1_SOUT_DSI3;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
> -		*addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
> -		value = RDMA1_SOUT_DPI0;
> +		*addr = data->rdma1_sout_sel_in;
> +		value = data->rdma1_sout_dpi0;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) {
>  		*addr = DISP_REG_CONFIG_DISP_RDMA1_SOUT_EN;
>  		value = RDMA1_SOUT_DPI1;
> @@ -325,7 +352,8 @@ static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
>  	return value;
>  }
>  
> -static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
> +static unsigned int mtk_ddp_sel_in(const struct mtk_mmsys_reg_data *data,
> +				   enum mtk_ddp_comp_id cur,
>  				   enum mtk_ddp_comp_id next,
>  				   unsigned int *addr)
>  {
> @@ -335,14 +363,14 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
>  		*addr = DISP_REG_CONFIG_DISP_COLOR0_SEL_IN;
>  		value = COLOR0_SEL_IN_OVL0;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI0) {
> -		*addr = DISP_REG_CONFIG_DPI_SEL_IN;
> -		value = DPI0_SEL_IN_RDMA1;
> +		*addr = data->dpi0_sel_in;
> +		value = data->dpi0_sel_in_rdma1;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DPI1) {
>  		*addr = DISP_REG_CONFIG_DPI_SEL_IN;
>  		value = DPI1_SEL_IN_RDMA1;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI0) {
> -		*addr = DISP_REG_CONFIG_DSIE_SEL_IN;
> -		value = DSI0_SEL_IN_RDMA1;
> +		*addr = data->dsi0_sel_in;
> +		value = data->dsi0_sel_in_rdma1;
>  	} else if (cur == DDP_COMPONENT_RDMA1 && next == DDP_COMPONENT_DSI1) {
>  		*addr = DISP_REG_CONFIG_DSIO_SEL_IN;
>  		value = DSI1_SEL_IN_RDMA1;
> @@ -389,7 +417,8 @@ static unsigned int mtk_ddp_sel_in(enum mtk_ddp_comp_id cur,
>  	return value;
>  }
>  
> -static unsigned int mtk_ddp_sout_sel(enum mtk_ddp_comp_id cur,
> +static unsigned int mtk_ddp_sout_sel(const struct mtk_mmsys_reg_data *data,
> +				     enum mtk_ddp_comp_id cur,
>  				     enum mtk_ddp_comp_id next,
>  				     unsigned int *addr)
>  {
> @@ -409,35 +438,37 @@ static unsigned int mtk_ddp_sout_sel(enum mtk_ddp_comp_id cur,
>  }
>  
>  void mtk_ddp_add_comp_to_path(struct regmap *config_regs,
> +			      const struct mtk_mmsys_reg_data *reg_data,
>  			      enum mtk_ddp_comp_id cur,
>  			      enum mtk_ddp_comp_id next)
>  {
>  	unsigned int addr, value;
>  
> -	value = mtk_ddp_mout_en(cur, next, &addr);
> +	value = mtk_ddp_mout_en(reg_data, cur, next, &addr);
>  	if (value)
>  		regmap_update_bits(config_regs, addr, value, value);
>  
> -	value = mtk_ddp_sout_sel(cur, next, &addr);
> +	value = mtk_ddp_sout_sel(reg_data, cur, next, &addr);
>  	if (value)
>  		regmap_update_bits(config_regs, addr, value, value);
>  
> -	value = mtk_ddp_sel_in(cur, next, &addr);
> +	value = mtk_ddp_sel_in(reg_data, cur, next, &addr);
>  	if (value)
>  		regmap_update_bits(config_regs, addr, value, value);
>  }
>  
>  void mtk_ddp_remove_comp_from_path(struct regmap *config_regs,
> +				   const struct mtk_mmsys_reg_data *reg_data,
>  				   enum mtk_ddp_comp_id cur,
>  				   enum mtk_ddp_comp_id next)
>  {
>  	unsigned int addr, value;
>  
> -	value = mtk_ddp_mout_en(cur, next, &addr);
> +	value = mtk_ddp_mout_en(reg_data, cur, next, &addr);
>  	if (value)
>  		regmap_update_bits(config_regs, addr, value, 0);
>  
> -	value = mtk_ddp_sel_in(cur, next, &addr);
> +	value = mtk_ddp_sel_in(reg_data, cur, next, &addr);
>  	if (value)
>  		regmap_update_bits(config_regs, addr, value, 0);
>  }
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp.h
> index 01ff8b6..75fa56e 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.h
> @@ -11,11 +11,17 @@
>  struct regmap;
>  struct device;
>  struct mtk_disp_mutex;
> +struct mtk_mmsys_reg_data;
> +
> +extern const struct mtk_mmsys_reg_data mt2701_mmsys_reg_data;
> +extern const struct mtk_mmsys_reg_data mt8173_mmsys_reg_data;
>  
>  void mtk_ddp_add_comp_to_path(struct regmap *config_regs,
> +			      const struct mtk_mmsys_reg_data *reg_data,
>  			      enum mtk_ddp_comp_id cur,
>  			      enum mtk_ddp_comp_id next);
>  void mtk_ddp_remove_comp_from_path(struct regmap *config_regs,
> +				   const struct mtk_mmsys_reg_data *reg_data,
>  				   enum mtk_ddp_comp_id cur,
>  				   enum mtk_ddp_comp_id next);
>  
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index f69af42..e3293cf8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -185,6 +185,7 @@ static int mtk_atomic_commit(struct drm_device *drm,
>  	.main_len = ARRAY_SIZE(mt2701_mtk_ddp_main),
>  	.ext_path = mt2701_mtk_ddp_ext,
>  	.ext_len = ARRAY_SIZE(mt2701_mtk_ddp_ext),
> +	.reg_data = &mt2701_mmsys_reg_data,
>  	.shadow_register = true,
>  	.clk_drv_name = "clk-mt2701-mm",
>  };
> @@ -196,6 +197,7 @@ static int mtk_atomic_commit(struct drm_device *drm,
>  	.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
>  	.third_path = mt2712_mtk_ddp_third,
>  	.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
> +	.reg_data = &mt8173_mmsys_reg_data,
>  	.clk_drv_name = "clk-mt2712-mm",
>  };
>  
> @@ -204,6 +206,7 @@ static int mtk_atomic_commit(struct drm_device *drm,
>  	.main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
>  	.ext_path = mt8173_mtk_ddp_ext,
>  	.ext_len = ARRAY_SIZE(mt8173_mtk_ddp_ext),
> +	.reg_data = &mt8173_mmsys_reg_data,
>  	.clk_drv_name = "clk-mt8173-mm",
>  };
>  
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> index 8fe9136..9d87441 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
> @@ -7,6 +7,7 @@
>  #define MTK_DRM_DRV_H
>  
>  #include <linux/io.h>
> +#include "mtk_drm_ddp.h"
>  #include "mtk_drm_ddp_comp.h"
>  
>  #define MAX_CRTC	3
> @@ -28,6 +29,8 @@ struct mtk_mmsys_driver_data {
>  	const enum mtk_ddp_comp_id *third_path;
>  	unsigned int third_len;
>  
> +	const struct mtk_mmsys_reg_data *reg_data;
> +
>  	bool shadow_register;
>  	const char *clk_drv_name;
>  };

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