Re: [PATCH v2 7/7] media: platform: qcom/iris: add sm8650 support

[Dikshita Agarwal <quic_dikshita@quicinc.com>]

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@linaro.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);
>