linux-kernel - Re: [PATCH 02/11] soc: qcom: ubwc: add helper to get min

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Message-ID: <3or4j2louj6uldvwcxb4hokr57zkowi4rkc3sjw3z7s5d6rkin@l6vngrgdyzou>
Date: Wed, 14 Jan 2026 16:22:25 -0600
From: Bjorn Andersson <andersson@...nel.org>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Konrad Dybcio <konradybcio@...nel.org>, 
	Rob Clark <robin.clark@....qualcomm.com>, Dmitry Baryshkov <lumag@...nel.org>, 
	Abhinav Kumar <abhinav.kumar@...ux.dev>, Jessica Zhang <jesszhan0024@...il.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Akhil P Oommen <akhilpo@....qualcomm.com>, Vikash Garodia <vikash.garodia@....qualcomm.com>, 
	Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>, Bryan O'Donoghue <bod@...nel.org>, 
	Mauro Carvalho Chehab <mchehab@...nel.org>, Konrad Dybcio <konrad.dybcio@....qualcomm.com>, 
	linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	freedreno@...ts.freedesktop.org, linux-media@...r.kernel.org
Subject: Re: [PATCH 02/11] soc: qcom: ubwc: add helper to get min_acc length

On Sat, Jan 10, 2026 at 09:37:54PM +0200, Dmitry Baryshkov wrote:
> MDSS and GPU drivers use different approaches to get min_acc length.
> Add helper function that can be used by all the drivers.
> 

Acked-by: Bjorn Andersson <andersson@...nel.org>

Regards,
Bjorn

> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---
>  include/linux/soc/qcom/ubwc.h | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/include/linux/soc/qcom/ubwc.h b/include/linux/soc/qcom/ubwc.h
> index f052e241736c..50d891493ac8 100644
> --- a/include/linux/soc/qcom/ubwc.h
> +++ b/include/linux/soc/qcom/ubwc.h
> @@ -74,4 +74,11 @@ static inline bool qcom_ubwc_get_ubwc_mode(const struct qcom_ubwc_cfg_data *cfg)
>  	return ret;
>  }
>  
> +static inline bool qcom_ubwc_min_acc_length_64b(const struct qcom_ubwc_cfg_data *cfg)
> +{
> +	return cfg->ubwc_enc_version == UBWC_1_0 &&
> +		(cfg->ubwc_dec_version == UBWC_2_0 ||
> +		 cfg->ubwc_dec_version == UBWC_3_0);
> +}
> +
>  #endif /* __QCOM_UBWC_H__ */
> 
> -- 
> 2.47.3
>