linux-kernel - Re: [PATCH v7 5/7] media: venus: core: Add qcm2290 DT compatible and resource data

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Message-ID: <7fb5256e-630c-3040-ca6d-4e9dee52162c@quicinc.com>
Date: Mon, 28 Jul 2025 11:46:37 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>,
        <quic_vgarodia@...cinc.com>, <bryan.odonoghue@...aro.org>,
        <krzk+dt@...nel.org>, <konradybcio@...nel.org>, <mchehab@...nel.org>,
        <andersson@...nel.org>, <conor+dt@...nel.org>,
        <amit.kucheria@....qualcomm.com>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 5/7] media: venus: core: Add qcm2290 DT compatible and
 resource data



On 7/16/2025 2:17 AM, Jorge Ramirez-Ortiz wrote:
> Add a qcm2290 compatible binding to the Cenus core.
> 
> The maximum concurrency is video decode at 1920x1080 (FullHD) with video
> encode at 1280x720 (HD).
> 
> The encoder is not available to firmware versions below 6.0.54 due to an
> internal requirement for secure buffers.
> 
> The bandwidth tables incorporate a conservative safety margin to ensure
> stability under peak DDR and interconnect load conditions.
> 
> Co-developed-by: Loic Poulain <loic.poulain@....qualcomm.com>
> Signed-off-by: Loic Poulain <loic.poulain@....qualcomm.com>
> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez@....qualcomm.com>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>  drivers/media/platform/qcom/venus/core.c | 51 ++++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index bad49f0b4a77..2c9e2e0f95f5 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -1088,6 +1088,56 @@ static const struct venus_resources sc7280_res = {
>  	.enc_nodename = "video-encoder",
>  };
>  
> +static const struct bw_tbl qcm2290_bw_table_dec[] = {
> +	{ 352800, 597000, 0, 746000, 0 }, /* 1080p@30 + 720p@30 */
> +	{ 244800, 413000, 0, 516000, 0 }, /* 1080p@30 */
> +	{ 216000, 364000, 0, 454000, 0 }, /* 720p@60  */
> +	{ 108000, 182000, 0, 227000, 0 }, /* 720p@30  */
> +};
> +
> +static const struct bw_tbl qcm2290_bw_table_enc[] = {
> +	{ 352800, 396000, 0, 0, 0 }, /* 1080p@30 + 720p@30 */
> +	{ 244800, 275000, 0, 0, 0 }, /* 1080p@30 */
> +	{ 216000, 242000, 0, 0, 0 }, /* 720p@60  */
> +	{ 108000, 121000, 0, 0, 0 }, /* 720p@30  */
> +};
> +
> +static const struct venus_min_fw min_fw_encode = {
> +	.major = 6, .minor = 0, .rev = 54  /* encode min fw version */
> +};
> +
> +static const struct venus_resources qcm2290_res = {
> +	.bw_tbl_dec = qcm2290_bw_table_dec,
> +	.bw_tbl_dec_size = ARRAY_SIZE(qcm2290_bw_table_dec),
> +	.bw_tbl_enc = qcm2290_bw_table_enc,
> +	.bw_tbl_enc_size = ARRAY_SIZE(qcm2290_bw_table_enc),
> +	.clks = { "core", "iface", "bus", "throttle" },
> +	.clks_num = 4,
> +	.vcodec0_clks = { "vcodec0_core", "vcodec0_bus" },
> +	.vcodec_clks_num = 2,
> +	.vcodec_pmdomains = (const char *[]) { "venus", "vcodec0" },
> +	.vcodec_pmdomains_num = 2,
> +	.opp_pmdomain = (const char *[]) { "cx" },
> +	.vcodec_num = 1,
> +	.hfi_version = HFI_VERSION_4XX,
> +	.vpu_version = VPU_VERSION_AR50_LITE,
> +	.max_load = 352800,
> +	.num_vpp_pipes = 1,
> +	.vmem_id = VIDC_RESOURCE_NONE,
> +	.vmem_size = 0,
> +	.vmem_addr = 0,
> +	.cp_start = 0,
> +	.cp_size = 0x70800000,
> +	.cp_nonpixel_start = 0x1000000,
> +	.cp_nonpixel_size = 0x24800000,
> +	.dma_mask = 0xe0000000 - 1,
> +	.fwname = "qcom/venus-6.0/venus.mbn",
> +	.dec_nodename = "video-decoder",
> +	.dec_minfw = NULL,
> +	.enc_nodename = "video-encoder",
> +	.enc_minfw = &min_fw_encode,
> +};
> +
>  static const struct of_device_id venus_dt_match[] = {
>  	{ .compatible = "qcom,msm8916-venus", .data = &msm8916_res, },
>  	{ .compatible = "qcom,msm8996-venus", .data = &msm8996_res, },
> @@ -1098,6 +1148,7 @@ static const struct of_device_id venus_dt_match[] = {
>  	{ .compatible = "qcom,sc7180-venus", .data = &sc7180_res, },
>  	{ .compatible = "qcom,sc7280-venus", .data = &sc7280_res, },
>  	{ .compatible = "qcom,sm8250-venus", .data = &sm8250_res, },
> +	{ .compatible = "qcom,qcm2290-venus", .data = &qcm2290_res, },
>  	{ }
>  };
>  MODULE_DEVICE_TABLE(of, venus_dt_match);

Reviewed-by: Dikshita Agarwal <quic_dikshita@...cinc.com>

Thanks,
Dikshita