Commit 68a66a44 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Bjorn Andersson
Browse files

soc: qcom: ubwc: add helper to get min_acc length 



MDSS and GPU drivers use different approaches to get min_acc length.
Add helper function that can be used by all the drivers.

The helper reflects our current best guess, it blindly copies the
approach adopted by the MDSS drivers and it matches current values
selected by the GPU driver.

Reviewed-by: default avatarBryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: default avatarBjorn Andersson <andersson@kernel.org>
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: default avatarDikshita Agarwal <dikshita.agarwal@oss.qualcomm.com>
Tested-by: default avatarWangao Wang <wangao.wang@oss.qualcomm.com>
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260125-iris-ubwc-v4-1-1ff30644ac81@oss.qualcomm.com


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 6de23f81

include/linux/soc/qcom/ubwc.h

+10 −0
Original line number Diff line number Diff line
@@ -74,4 +74,14 @@ static inline bool qcom_ubwc_get_ubwc_mode(const struct qcom_ubwc_cfg_data *cfg) 
	return ret;

}



/*

 * This is the best guess, based on the MDSS driver, which worked so far.

 */

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__ */