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Message-ID: <feea4c41-d3cf-4dc7-d197-6d91313d90ff@quicinc.com>
Date: Thu, 6 Mar 2025 18:46:06 +0530
From: Dikshita Agarwal <quic_dikshita@...cinc.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
Vikash Garodia
<quic_vgarodia@...cinc.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
"Mauro Carvalho Chehab" <mchehab@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>
CC: <linux-media@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 7/7] media: platform: qcom/iris: add sm8650 support
On 3/6/2025 12:35 AM, Neil Armstrong wrote:
> Add support for the SM8650 platform by re-using the SM8550
> definitions and using the vpu33 ops.
>
> The SM8650/vpu33 requires more reset lines, but the H.284
> decoder capabilities are identical.
>
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
> .../platform/qcom/iris/iris_platform_common.h | 1 +
> .../platform/qcom/iris/iris_platform_sm8550.c | 64 ++++++++++++++++++++++
> drivers/media/platform/qcom/iris/iris_probe.c | 4 ++
> 3 files changed, 69 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h
> index fdd40fd80178c4c66b37e392d07a0a62f492f108..6bc3a7975b04d612f6c89206eae95dac678695fc 100644
> --- a/drivers/media/platform/qcom/iris/iris_platform_common.h
> +++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
> @@ -35,6 +35,7 @@ enum pipe_type {
>
> extern struct iris_platform_data sm8250_data;
> extern struct iris_platform_data sm8550_data;
> +extern struct iris_platform_data sm8650_data;
>
> enum platform_clk_type {
> IRIS_AXI_CLK,
> diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
> index 35d278996c430f2856d0fe59586930061a271c3e..d0f8fa960d53367023e41bc5807ba3f8beae2efc 100644
> --- a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
> +++ b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
> @@ -144,6 +144,10 @@ static const struct icc_info sm8550_icc_table[] = {
>
> static const char * const sm8550_clk_reset_table[] = { "bus" };
>
> +static const char * const sm8650_clk_reset_table[] = { "bus", "core" };
> +
> +static const char * const sm8650_controller_reset_table[] = { "xo" };
> +
> static const struct bw_info sm8550_bw_table_dec[] = {
> { ((4096 * 2160) / 256) * 60, 1608000 },
> { ((4096 * 2160) / 256) * 30, 826000 },
> @@ -264,3 +268,63 @@ struct iris_platform_data sm8550_data = {
> .dec_op_int_buf_tbl = sm8550_dec_op_int_buf_tbl,
> .dec_op_int_buf_tbl_size = ARRAY_SIZE(sm8550_dec_op_int_buf_tbl),
> };
> +
> +/*
> + * Shares most of SM8550 data except:
> + * - vpu_ops to iris_vpu33_ops
> + * - clk_rst_tbl to sm8650_clk_reset_table
> + * - controller_rst_tbl to sm8650_controller_reset_table
> + * - fwname to "qcom/vpu/vpu33_p4.mbn"
> + */
> +struct iris_platform_data sm8650_data = {
> + .get_instance = iris_hfi_gen2_get_instance,
> + .init_hfi_command_ops = iris_hfi_gen2_command_ops_init,
> + .init_hfi_response_ops = iris_hfi_gen2_response_ops_init,
> + .vpu_ops = &iris_vpu33_ops,
> + .set_preset_registers = iris_set_sm8550_preset_registers,
> + .icc_tbl = sm8550_icc_table,
> + .icc_tbl_size = ARRAY_SIZE(sm8550_icc_table),
> + .clk_rst_tbl = sm8650_clk_reset_table,
> + .clk_rst_tbl_size = ARRAY_SIZE(sm8650_clk_reset_table),
> + .controller_rst_tbl = sm8650_controller_reset_table,
> + .controller_rst_tbl_size = ARRAY_SIZE(sm8650_controller_reset_table),
> + .bw_tbl_dec = sm8550_bw_table_dec,
> + .bw_tbl_dec_size = ARRAY_SIZE(sm8550_bw_table_dec),
> + .pmdomain_tbl = sm8550_pmdomain_table,
> + .pmdomain_tbl_size = ARRAY_SIZE(sm8550_pmdomain_table),
> + .opp_pd_tbl = sm8550_opp_pd_table,
> + .opp_pd_tbl_size = ARRAY_SIZE(sm8550_opp_pd_table),
> + .clk_tbl = sm8550_clk_table,
> + .clk_tbl_size = ARRAY_SIZE(sm8550_clk_table),
> + /* Upper bound of DMA address range */
> + .dma_mask = 0xe0000000 - 1,
> + .fwname = "qcom/vpu/vpu33_p4.mbn",
> + .pas_id = IRIS_PAS_ID,
> + .inst_caps = &platform_inst_cap_sm8550,
> + .inst_fw_caps = inst_fw_cap_sm8550,
> + .inst_fw_caps_size = ARRAY_SIZE(inst_fw_cap_sm8550),
> + .tz_cp_config_data = &tz_cp_config_sm8550,
> + .core_arch = VIDEO_ARCH_LX,
> + .hw_response_timeout = HW_RESPONSE_TIMEOUT_VALUE,
> + .ubwc_config = &ubwc_config_sm8550,
> + .num_vpp_pipe = 4,
> + .max_session_count = 16,
> + .max_core_mbpf = ((8192 * 4352) / 256) * 2,
> + .input_config_params =
> + sm8550_vdec_input_config_params,
> + .input_config_params_size =
> + ARRAY_SIZE(sm8550_vdec_input_config_params),
> + .output_config_params =
> + sm8550_vdec_output_config_params,
> + .output_config_params_size =
> + ARRAY_SIZE(sm8550_vdec_output_config_params),
> + .dec_input_prop = sm8550_vdec_subscribe_input_properties,
> + .dec_input_prop_size = ARRAY_SIZE(sm8550_vdec_subscribe_input_properties),
> + .dec_output_prop = sm8550_vdec_subscribe_output_properties,
> + .dec_output_prop_size = ARRAY_SIZE(sm8550_vdec_subscribe_output_properties),
> +
> + .dec_ip_int_buf_tbl = sm8550_dec_ip_int_buf_tbl,
> + .dec_ip_int_buf_tbl_size = ARRAY_SIZE(sm8550_dec_ip_int_buf_tbl),
> + .dec_op_int_buf_tbl = sm8550_dec_op_int_buf_tbl,
> + .dec_op_int_buf_tbl_size = ARRAY_SIZE(sm8550_dec_op_int_buf_tbl),
> +};
This approach looks good to me, reusing the platform data like this keeps
the code cleaner and avoids duplication. I think this is a good way to
handle the differences while sharing the common parts.
Thanks,
Dikshita
> diff --git a/drivers/media/platform/qcom/iris/iris_probe.c b/drivers/media/platform/qcom/iris/iris_probe.c
> index 4f8bce6e2002bffee4c93dcaaf6e52bf4e40992e..7cd8650fbe9c09598670530103e3d5edf32953e7 100644
> --- a/drivers/media/platform/qcom/iris/iris_probe.c
> +++ b/drivers/media/platform/qcom/iris/iris_probe.c
> @@ -345,6 +345,10 @@ static const struct of_device_id iris_dt_match[] = {
> .data = &sm8250_data,
> },
> #endif
> + {
> + .compatible = "qcom,sm8650-iris",
> + .data = &sm8650_data,
> + },
> { },
> };
> MODULE_DEVICE_TABLE(of, iris_dt_match);
>
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