linux-kernel - Re: [PATCH v2 2/9] soc: mediatek: mutex: expand parameter for mdp mutex function

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Date:   Wed, 20 Oct 2021 11:29:48 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     "roy-cw.yeh" <roy-cw.yeh@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Fabien Parent <fparent@...libre.com>,
        "jason-jh . lin" <jason-jh.lin@...iatek.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        Moudy Ho <moudy.ho@...iatek.com>,
        "river . cheng" <river.cheng@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v2 2/9] soc: mediatek: mutex: expand parameter for mdp
 mutex function

Il 20/10/21 09:14, roy-cw.yeh ha scritto:
> From: "Roy-CW.Yeh" <roy-cw.yeh@...iatek.com>
> 
> Expand parameter for mdp mutex function
> 
> Signed-off-by: Roy-CW.Yeh <roy-cw.yeh@...iatek.com>

Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>


> ---
>   drivers/soc/mediatek/mtk-mutex.c       | 26 ++++++++++++++++++--------
>   include/linux/soc/mediatek/mtk-mutex.h |  2 +-
>   2 files changed, 19 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c
> index 814f58f692cf..c100a5249016 100644
> --- a/drivers/soc/mediatek/mtk-mutex.c
> +++ b/drivers/soc/mediatek/mtk-mutex.c
> @@ -25,8 +25,9 @@
>   #define DISP_REG_MUTEX_EN(n)			(0x20 + 0x20 * (n))
>   #define DISP_REG_MUTEX(n)			(0x24 + 0x20 * (n))
>   #define DISP_REG_MUTEX_RST(n)			(0x28 + 0x20 * (n))
> -#define DISP_REG_MUTEX_MOD(mutex_mod_reg, n)	(mutex_mod_reg + 0x20 * (n))
> -#define DISP_REG_MUTEX_SOF(mutex_sof_reg, n)	(mutex_sof_reg + 0x20 * (n))
> +#define DISP_REG_MUTEX_MOD(mutex_mod_reg, n)	((mutex_mod_reg) + 0x20 * (n))
> +#define DISP_REG_MUTEX_MOD1(mutex_mod_reg, n)	((mutex_mod_reg) + 0x20 * (n) + 0x4)
> +#define DISP_REG_MUTEX_SOF(mutex_sof_reg, n)	((mutex_sof_reg) + 0x20 * (n))
>   #define DISP_REG_MUTEX_MOD2(n)			(0x34 + 0x20 * (n))
>   
>   #define INT_MUTEX				BIT(1)
> @@ -116,6 +117,11 @@
>   #define MT8183_MUTEX_MDP_MOD_MASK		0x07FFFFFF
>   #define MT8183_MUTEX_MDP_SOF_MASK		0x00000007
>   
> +#define MT8183_MDP_PIPE_IMGI			MT8183_MUTEX_MDP_START
> +#define MT8183_MDP_PIPE_RDMA0			(MT8183_MUTEX_MDP_START + 1)
> +#define MT8183_MDP_PIPE_WPEI			(MT8183_MUTEX_MDP_START + 2)
> +#define MT8183_MDP_PIPE_WPEI2			(MT8183_MUTEX_MDP_START + 3)
> +
>   struct mtk_mutex {
>   	int id;
>   	bool claimed;
> @@ -254,10 +260,10 @@ static const unsigned int mt8183_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
>   
>   /* indicate which mutex is used by each pipepline */
>   static const unsigned int mt8183_mutex_mdp_offset[MDP_PIPE_MAX] = {
> -	[MDP_PIPE_IMGI] = MT8183_MUTEX_MDP_START,
> -	[MDP_PIPE_RDMA0] = MT8183_MUTEX_MDP_START + 1,
> -	[MDP_PIPE_WPEI] = MT8183_MUTEX_MDP_START + 2,
> -	[MDP_PIPE_WPEI2] = MT8183_MUTEX_MDP_START + 3
> +	[MDP_PIPE_IMGI] = MT8183_MDP_PIPE_IMGI,
> +	[MDP_PIPE_RDMA0] = MT8183_MDP_PIPE_RDMA0,
> +	[MDP_PIPE_WPEI] = MT8183_MDP_PIPE_WPEI,
> +	[MDP_PIPE_WPEI2] = MT8183_MDP_PIPE_WPEI2,
>   };
>   
>   static const struct mtk_mutex_data mt2701_mutex_driver_data = {
> @@ -410,7 +416,7 @@ void mtk_mutex_add_comp(struct mtk_mutex *mutex,
>   EXPORT_SYMBOL_GPL(mtk_mutex_add_comp);
>   
>   void mtk_mutex_add_mdp_mod(struct mtk_mutex *mutex, u32 mod,
> -			   struct mmsys_cmdq_cmd *cmd)
> +			   u32 mod1, u32 sof, struct mmsys_cmdq_cmd *cmd)
>   {
>   	struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
>   						 mutex[mutex->id]);
> @@ -422,9 +428,13 @@ void mtk_mutex_add_mdp_mod(struct mtk_mutex *mutex, u32 mod,
>   	cmdq_pkt_write_mask(cmd->pkt, mtx->subsys_id, mtx->addr + offset,
>   			    mod, mtx->data->mutex_mdp_mod_mask);
>   
> +	offset = DISP_REG_MUTEX_MOD1(mtx->data->mutex_mod_reg, mutex->id);
> +	cmdq_pkt_write_mask(cmd->pkt, mtx->subsys_id, mtx->addr + offset,
> +			    mod1, mtx->data->mutex_mdp_mod_mask);
> +
>   	offset = DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex->id);
>   	cmdq_pkt_write_mask(cmd->pkt, mtx->subsys_id, mtx->addr + offset,
> -			    0, mtx->data->mutex_mdp_sof_mask);
> +			    sof, mtx->data->mutex_mdp_sof_mask);
>   }
>   EXPORT_SYMBOL_GPL(mtk_mutex_add_mdp_mod);
>   
> diff --git a/include/linux/soc/mediatek/mtk-mutex.h b/include/linux/soc/mediatek/mtk-mutex.h
> index d08b98419dd9..a2b81ce55b5d 100644
> --- a/include/linux/soc/mediatek/mtk-mutex.h
> +++ b/include/linux/soc/mediatek/mtk-mutex.h
> @@ -17,7 +17,7 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex);
>   void mtk_mutex_add_comp(struct mtk_mutex *mutex,
>   			enum mtk_ddp_comp_id id);
>   void mtk_mutex_add_mdp_mod(struct mtk_mutex *mutex, u32 mod,
> -			   struct mmsys_cmdq_cmd *cmd);
> +			   u32 mod1, u32 sof, struct mmsys_cmdq_cmd *cmd);
>   void mtk_mutex_enable(struct mtk_mutex *mutex);
>   void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex,
>   			      struct mmsys_cmdq_cmd *cmd);
>