linux-kernel - Re: [PATCH] drm/msm/dpu: Remove some unused variables

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Message-ID: <982748a3-25d2-0d27-f6bd-d38e0a89796d@quicinc.com>
Date:   Tue, 17 Jan 2023 15:28:38 -0800
From:   Abhinav Kumar <quic_abhinavk@...cinc.com>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        <robdclark@...il.com>
CC:     <dmitry.baryshkov@...aro.org>, <sean@...rly.run>,
        <airlied@...il.com>, <daniel@...ll.ch>,
        <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: Re: [PATCH] drm/msm/dpu: Remove some unused variables



On 1/11/2023 7:38 PM, Jiapeng Chong wrote:
> Variables 'sc8280xp_regdma' and 'sm8350_regdma' are defined in the
> dpu_hw_catalog.c file, but not used elsewhere, so remove these unused
> variables.
> 
> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:2029:37: warning: unused variable 'sc8280xp_regdma'.
> drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c:2053:37: warning: unused variable 'sm8350_regdma'.
> 
> Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=3722
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>

We should be adding the regdma entries to .dma_cfg of these chipsets.

> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 16 ----------------
>   1 file changed, 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> index 0f3da480b066..79bbef93948f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> @@ -2026,14 +2026,6 @@ static const struct dpu_vbif_cfg sdm845_vbif[] = {
>   	},
>   };
>   
> -static const struct dpu_reg_dma_cfg sc8280xp_regdma = {
> -	.base = 0x0,
> -	.version = 0x00020000,
> -	.trigger_sel_off = 0x119c,
> -	.xin_id = 7,
> -	.clk_ctrl = DPU_CLK_CTRL_REG_DMA,
> -};
> -
>   static const struct dpu_reg_dma_cfg sdm845_regdma = {
>   	.base = 0x0, .version = 0x1, .trigger_sel_off = 0x119c
>   };
> @@ -2050,14 +2042,6 @@ static const struct dpu_reg_dma_cfg sm8250_regdma = {
>   	.clk_ctrl = DPU_CLK_CTRL_REG_DMA,
>   };
>   
> -static const struct dpu_reg_dma_cfg sm8350_regdma = {
> -	.base = 0x400,
> -	.version = 0x00020000,
> -	.trigger_sel_off = 0x119c,
> -	.xin_id = 7,
> -	.clk_ctrl = DPU_CLK_CTRL_REG_DMA,
> -};
> -
>   static const struct dpu_reg_dma_cfg sm8450_regdma = {
>   	.base = 0x0,
>   	.version = 0x00020000,