linux-kernel - Re: [PATCH v4 5/9] drm/msm/dpu: Add SM6150 support

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Message-ID: <ntffm2jwr44m77z2bvuifv3itkpywco3cemgzkizzdp7e2ekdv@htfktmyyoe3k>
Date: Tue, 17 Dec 2024 12:54:55 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Fange Zhang <quic_fangez@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
	Marijn Suijten <marijn.suijten@...ainline.org>, Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
	Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Krishna Manikandan <quic_mkrishn@...cinc.com>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Liu Li <quic_lliu6@...cinc.com>, 
	Xiangxu Yin <quic_xiangxuy@...cinc.com>, linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 5/9] drm/msm/dpu: Add SM6150 support

On Tue, Dec 10, 2024 at 02:53:56PM +0800, Fange Zhang wrote:
> From: Li Liu <quic_lliu6@...cinc.com>
> 
> Add definitions for the display hardware used on the Qualcomm SM6150
> platform.
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Li Liu <quic_lliu6@...cinc.com>
> Signed-off-by: Fange Zhang <quic_fangez@...cinc.com>
> ---
>  .../gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h | 254 +++++++++++++++++++++
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c     |   1 +
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.h     |   1 +
>  drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c            |   1 +
>  4 files changed, 257 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h
> new file mode 100644
> index 0000000000000000000000000000000000000000..621a2140f675fa28b3a7fcd8573e59b306cd6832
> --- /dev/null
> +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_5_3_sm6150.h

[...]

> +
> +const struct dpu_mdss_cfg dpu_sm6150_cfg = {
> +	.mdss_ver = &sm6150_mdss_ver,
> +	.caps = &sm6150_dpu_caps,
> +	.mdp = &sm6150_mdp,
> +	.ctl_count = ARRAY_SIZE(sm6150_ctl),
> +	.ctl = sm6150_ctl,
> +	.sspp_count = ARRAY_SIZE(sm6150_sspp),
> +	.sspp = sm6150_sspp,
> +	.mixer_count = ARRAY_SIZE(sm6150_lm),
> +	.mixer = sm6150_lm,
> +	.dspp_count = ARRAY_SIZE(sm6150_dspp),
> +	.dspp = sm6150_dspp,
> +	.pingpong_count = ARRAY_SIZE(sm6150_pp),
> +	.pingpong = sm6150_pp,
> +	.intf_count = ARRAY_SIZE(sm6150_intf),
> +	.intf = sm6150_intf,
> +	.vbif_count = ARRAY_SIZE(sdm845_vbif),
> +	.vbif = sdm845_vbif,
> +	.perf = &sm6150_perf_data,

I noticed that the catalog entry doesn't provide writeback configuration
although the vendor DTSi specified that there is WB_2 on this platform.
Please send a followup patch enabling writeback on this platform.

> +};
> +
> +#endif

-- 
With best wishes
Dmitry