linux-kernel - Re: [PATCH v3, 09/27] drm/mediatek: add mutex sof register offset into ddp private data

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Date:   Thu, 13 Jun 2019 15:45:02 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     <yongqiang.niu@...iatek.com>
CC:     Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "David Airlie" <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH v3, 09/27] drm/mediatek: add mutex sof register offset
 into ddp private data

Hi, Yongqiang:

On Wed, 2019-06-05 at 19:42 +0800, yongqiang.niu@...iatek.com wrote:
> From: Yongqiang Niu <yongqiang.niu@...iatek.com>
> 
> mutex sof register offset will be private data of ddp
> 
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_drm_ddp.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> index e1a510f..717609d 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp.c
> @@ -42,12 +42,13 @@
>  #define DISP_REG_CONFIG_DPI_SEL			0x064
>  
>  #define MT2701_DISP_MUTEX0_MOD0			0x2c
> +#define MT2701_DISP_MUTEX0_SOF0			0x2c

0x30?

Regards,
CK

>  
>  #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(n)			(0x30 + 0x20 * (n))
> +#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)
> @@ -164,6 +165,7 @@ struct mtk_ddp_data {
>  	const unsigned int *mutex_mod;
>  	const unsigned int *mutex_sof;
>  	const unsigned int mutex_mod_reg;
> +	const unsigned int mutex_sof_reg;
>  };
>  
>  struct mtk_ddp {
> @@ -235,18 +237,21 @@ struct mtk_ddp {
>  	.mutex_mod = mt2701_mutex_mod,
>  	.mutex_sof = mt2712_mutex_sof,
>  	.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
> +	.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
>  };
>  
>  static const struct mtk_ddp_data mt2712_ddp_driver_data = {
>  	.mutex_mod = mt2712_mutex_mod,
>  	.mutex_sof = mt2712_mutex_sof,
>  	.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
> +	.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
>  };
>  
>  static const struct mtk_ddp_data mt8173_ddp_driver_data = {
>  	.mutex_mod = mt8173_mutex_mod,
>  	.mutex_sof = mt2712_mutex_sof,
>  	.mutex_mod_reg = MT2701_DISP_MUTEX0_MOD0,
> +	.mutex_sof_reg = MT2701_DISP_MUTEX0_SOF0,
>  };
>  
>  static unsigned int mtk_ddp_mout_en(enum mtk_ddp_comp_id cur,
> @@ -528,7 +533,8 @@ void mtk_disp_mutex_add_comp(struct mtk_disp_mutex *mutex,
>  	}
>  
>  	writel_relaxed(ddp->data->mutex_sof[sof_id],
> -		       ddp->regs + DISP_REG_MUTEX_SOF(mutex->id));
> +		       ddp->regs +
> +		       DISP_REG_MUTEX_SOF(ddp->data->mutex_sof_reg, mutex->id));
>  }
>  
>  void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
> @@ -550,7 +556,8 @@ void mtk_disp_mutex_remove_comp(struct mtk_disp_mutex *mutex,
>  	case DDP_COMPONENT_DPI1:
>  		writel_relaxed(MUTEX_SOF_SINGLE_MODE,
>  			       ddp->regs +
> -			       DISP_REG_MUTEX_SOF(mutex->id));
> +			       DISP_REG_MUTEX_SOF(ddp->data->mutex_sof_reg,
> +						  mutex->id));
>  		break;
>  	default:
>  		if (ddp->data->mutex_mod[id] < 32) {